tag:blogger.com,1999:blog-2436366403334827262024-03-06T05:10:14.454+05:30Science is for SharingSharing some interesting Scientific news which I came across .......Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.comBlogger147125tag:blogger.com,1999:blog-243636640333482726.post-77707846377417595692020-07-11T01:44:00.001+05:302020-07-11T01:44:42.784+05:30Descending Cirrus clouds characteristics over Gadanki (Tirupati, Andhra Pradesh). Our research published<div dir="ltr" style="text-align: left;" trbidi="on">
Our long awaited publication exploring the <b>Descending Cirrus clouds over Gadanki.</b><br /><b><i>
Int'l. Journal of Remote Sensing<br /></i></b>
<br />It is the story of Cirrus clouds which descends / ascends altitude ..... their characteristic properties ....using NARL's long term Lidar data.<br /><br /><br /><br />
<span class="authors" style="background-color: white; box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">Nellore Manoj Kumar, Kannan Venkatramanan, Anish Kumar M. Nair & Shekatam Satheesh Kumar</span><span style="background-color: white; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"> </span><span class="date" style="background-color: white; box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">(2020)</span><span style="background-color: white; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"> </span><span class="art_title" style="background-color: white; box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px; margin: 0px 0px 5px;"><b>On the characterization of descending nature of cirrus clouds over a tropical site, Gadanki,</b></span><span style="background-color: white; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"> </span><span class="serial_title" style="background-color: white; box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">International Journal of Remote Sensing,</span><span style="background-color: white; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"> </span><span class="volume_issue" style="background-color: white; box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">41:17,</span><span style="background-color: white; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"> </span><span class="page_range" style="background-color: white; box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">6550-6569,</span><span style="background-color: white; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"> </span><span class="doi_link" style="background-color: white; box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">DOI: <a href="https://doi.org/10.1080/01431161.2020.1742942" style="background-color: transparent; box-sizing: border-box; color: #333333;">10.1080/01431161.2020.1742942</a></span><br />
<br /><a href="https://t.co/vpReYZZZsY">
https://t.co/vpReYZZZsY</a> <a href="https://t.co/3zJDq2KNjM">https://t.co/3zJDq2KNjM</a><br />
<br /><a href="https://www.tandfonline.com/doi/abs/10.1080/01431161.2020.1742942">
https://www.tandfonline.com/doi/abs/10.1080/01431161.2020.1742942</a><br />
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto;"><tbody><tr><td style="text-align: center;"><a href="https://www.tandfonline.com/doi/abs/10.1080/01431161.2020.1742942" style="margin-left: auto; margin-right: auto;"><img border="0" data-original-height="1600" data-original-width="974" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioENKS-PCkbhmnzjMpnaDN0gJAGvfejc5BApTmRxrUX5NuJqXUVtnZJ8GFIBA6DRaeKZkJbFebpGmnrRTFKOBdIM4sgrfKnDiiwx6jBveLKCBL6p2EgqaYnFboFkkLFq0j7xMSB2_ECB0/s640/Screenshot_20200702-211551%257E2.png" width="387" /></a></td></tr><tr><td class="tr-caption" style="text-align: center;"><br /></td></tr></tbody></table><div class="separator" style="clear: both; text-align: center;">
</div>
<br />
The interesting feature of Cirrus cloud's descending & ascending are well characterized using<br />
~6 years of lidar observations.<br />
<br />
The study roots back to the inspiration from my earlier work published in J.Geophysicsl Research in 2012</div><div dir="ltr" style="text-align: left;" trbidi="on"><br />
<span class="hlFld-ContribAuthor" style="box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">Nair, <span class="NLM_given-names" style="box-sizing: border-box;">A. K. M.</span> </span><span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">, </span><span class="hlFld-ContribAuthor" style="box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"><span class="NLM_given-names" style="box-sizing: border-box;">K.</span>Rajeev</span><span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">, </span><span class="hlFld-ContribAuthor" style="box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"><span class="NLM_given-names" style="box-sizing: border-box;">M. K.</span>Mishra</span><span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">, </span><span class="hlFld-ContribAuthor" style="box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"><span class="NLM_given-names" style="box-sizing: border-box;">B. V.</span>Thampi</span><span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">, and </span><span class="hlFld-ContribAuthor" style="box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"><span class="NLM_given-names" style="box-sizing: border-box;">K.</span>Parameswaran</span><span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"> . </span><span class="NLM_year" style="box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">2012</span><span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">. “</span><span class="NLM_article-title" style="box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">Multiyear Lidar Observations of the Descending Nature of Tropical Cirrus Clouds</span><span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">.” </span><i style="box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">Journal of Geophysical Research Atmospheres</i><span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"> 11717: </span><span class="NLM_fpage" style="box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">1</span><span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">–</span><span class="NLM_lpage" style="box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">9</span><span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">. <a href="https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2011JD017406">doi:</a></span><span class="NLM_pub-id" style="box-sizing: border-box; color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"><a href="https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2011JD017406">10.1029/2011JD017406</a></span><span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;">.</span><br />
<span style="color: #333333; font-family: "open sans", sans-serif; font-size: 16px;"><br /></span>
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2011JD017406<br />
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The present work was collaboratively done with Manoj, Satheesh and Kannan.<br />
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Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-90854564020740992962019-12-31T13:40:00.000+05:302019-12-31T13:42:31.811+05:30Our latest publication on "modelling Pool of inhibited cloudiness"<div dir="ltr" style="text-align: left;" trbidi="on">
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<div class="separator" style="clear: both; text-align: center;">
<a href="https://rmets.onlinelibrary.wiley.com/doi/abs/10.1002/joc.6423" target="_blank"><img alt="Go to Web Page" border="0" data-original-height="565" data-original-width="696" height="322" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhl8VnEKwf7-QBi7lQCbdQoYLt6NAYbpXxKP9lhjaVvb7sXQTEAxBcPuPBFHjljDJ8NYnDFtNGf7DWbGLqWkieGbv0dOyddUoWQdgGd9pcr6E0MCDS0q3i3U5RemNJQ29lGUUJ7Ut1393E/s400/screenshot_Pool_JoC.JPG" width="400" /></a></div>
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<span style="font-size: medium;">Our collaborative research article </span><br />
<h2 class="citation__title" style="text-align: left;">
Sensitivity of climate models in relation to the “pool of inhibited cloudiness” over South of the Bay of Bengal</h2>
<span style="font-size: medium;"> is published in the International Journal of Climatology recently.</span><br />
<span style="font-size: medium;">[<span style="color: blue;"><a href="https://rmets.onlinelibrary.wiley.com/doi/abs/10.1002/joc.6423" target="_blank">click to view the paper</a></span>] / [<span style="color: blue;"><a href="https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.6423" target="_blank">click here to download the paper</a></span>]</span><br />
<span style="font-size: medium;">It is on evaluation of
CMIP5 models and suites of CFSv2 in capturing a region known as <i>"Pool of
inhibited cloudiness"</i> [<a href="https://www.ann-geophys.net/29/1247/2011/angeo-29-1247-2011.pdf" target="_blank">click to view the base paper</a>] over the southwest Bay of Bengal region.</span><br />
<br />
<div class="gmail_default">
<span style="font-size: medium;">This
region was actually identified based on satellite observation by Nair
et al. (2011) </span></div>
<div class="gmail_default">
</div>
<div class="gmail_default">
<span style="font-size: medium;">However, the fidelity of climate models were not
evaluated to capture this region of suppressed convection (surrounded by
region of deep convection).</span></div>
<div class="gmail_default">
</div>
<div class="gmail_default">
<span style="font-size: medium;">Climate models (cmip5 and CFSv2 default) shows difficulties in simulating the region.</span></div>
<div class="gmail_default">
<span style="font-size: medium;">However, improved cloud physics seem to have played an important role in capturing the complex process</span></div>
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<div style="margin-left: 24pt; text-indent: -24.0pt;">
<br /></div>
<div style="margin-left: 24pt; text-indent: -24.0pt;">
<u><b>Present Paper:</b></u></div>
<div style="margin-left: 24pt; text-indent: -24.0pt;">
Roy, K., Mukhopadhyay, P., Murali Krishna, R.P., Ganai, M., Mahakur, M., Narayan Rao, T., Nair, A.K.M., Ramakrishna, S.S.V.S., 2019. Sensitivity of climate models in relation to the “pool of inhibited cloudiness” over South of the Bay of Bengal. Int. J. Climatol. joc.6423. <a href="https://doi.org/10.1002/joc.6423">https://doi.org/10.1002/joc.6423</a></div>
<br />
<u><b>Related Publications from the author:</b></u><br />
Nair, A.K.M., Rao, T.N., Rajeev, K., 2019. Role of cloud feedback in regulating the “pool of inhibited cloudiness” over the Bay of Bengal. Meteorol. Atmos. Phys. 131, 183–194. <a href="https://doi.org/10.1007/s00703-017-0560-7">https://doi.org/10.1007/s00703-017-0560-7</a><br />
<br />
Nair, A.K.M., 2014. Studies on the horizontal and vertical distribution of clouds and their impact on energetics of the Atmosphere over the Indian Region. (Thesis) Cochin University of Science and Technology, <a href="http://shodhganga.inflibnet.ac.in/handle/10603/18956">shodhganga.inflibnet.ac.in/handle/10603/18956</a><br />
<br />
<br />
Nair, A.K.M., Rajeev, K., Sijikumar, S., Meenu, S., 2011. Characteristics of a persistent “pool of inhibited cloudiness” and its genesis over the Bay of Bengal associated with the Asian summer monsoon. Ann. Geophys. 29, 1247–1252. <a href="https://doi.org/10.5194/angeo-29-1247-2011">https://doi.org/10.5194/angeo-29-1247-2011</a><br />
<div style="margin-left: 24pt; text-indent: -24.0pt;">
<br /></div>
</div>
Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-64805194372884781432018-10-09T12:53:00.000+05:302018-10-09T12:58:29.195+05:30Annular Solar Eclipse of 26 December 2019 (Simulated)<div dir="ltr" style="text-align: left;" trbidi="on">
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhl2OibEQtDEETgxqMPxyc-oCBMNfEBWuC91eB1AgKXoa9ZYdpQ1m_13Xun0QvRX4-mIlJkC006NcDfiSDAEIMdzZe5mKhZRj_v2Yf_oFT7Zb-AZ_ToD7Kp2G17sExdzr_Ruk4JcCUaMBU/s1600/AnnularEclipse_26122019_CBE_GDK.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="198" data-original-width="600" height="130" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhl2OibEQtDEETgxqMPxyc-oCBMNfEBWuC91eB1AgKXoa9ZYdpQ1m_13Xun0QvRX4-mIlJkC006NcDfiSDAEIMdzZe5mKhZRj_v2Yf_oFT7Zb-AZ_ToD7Kp2G17sExdzr_Ruk4JcCUaMBU/s400/AnnularEclipse_26122019_CBE_GDK.JPG" width="400" /></a></div>
<h3 style="background-color: white; box-sizing: border-box; color: #282828; font-size: 24px; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;"><span style="box-sizing: border-box; font-weight: 700;"><br /></span></span></h3>
<h3 style="background-color: white; box-sizing: border-box; color: #282828; font-size: 24px; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;"><span style="box-sizing: border-box; font-weight: 700;">🌞Eclipses 🌚 </span>are heavenly visual feasts of celestial bodies hide and seek game with light and shadow.</span></h3>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<em style="box-sizing: border-box;"><span style="font-family: "trebuchet ms" , sans-serif;">Indeed, they are rare events !</span></em></div>
<h3 style="background-color: white; box-sizing: border-box; color: #282828; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;"><span style="font-size: 24px;">We need to be in the right place </span><span style="font-size: x-large;">🗺 </span><span style="font-size: 24px;">and at right time </span></span><span style="font-size: 24px;">⌚ to <span style="font-family: "helvetica neue" , "arial" , "helvetica" , sans-serif;">watch an eclipse unfurl.</span></span></h3>
<h2 style="background-color: white; box-sizing: border-box; color: #282828; font-size: 30px; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;">💥How about watching a future eclipse now ?</span></h2>
<h3 style="background-color: white; box-sizing: border-box; color: #282828; font-size: 24px; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;">Yes, it is possible ! </span></h3>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<span style="font-family: "trebuchet ms" , sans-serif;">Curious to know ? 🤔</span></div>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<span style="font-family: "trebuchet ms" , sans-serif;">We can simulate it in our PC 💻 and enjoy. No need to travel far off.</span></div>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<span style="font-family: "trebuchet ms" , sans-serif;">It would be truly interesting to watch it in advance and later wait at the right place to witness it.</span></div>
<hr style="background-color: white; border-bottom: 0px; border-image: initial; border-left: 0px; border-right: 0px; border-top-color: rgb(238, 238, 238); border-top-style: solid; box-sizing: content-box; color: #282828; font-size: 16px; height: 0px; margin-bottom: 20px; margin-top: 20px;" />
<h3 style="background-color: white; box-sizing: border-box; color: #282828; font-size: 24px; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;">❓ How to simulate a heavenly event ?</span></h3>
<h3 style="background-color: white; box-sizing: border-box; color: #282828; font-size: 24px; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;">Use the free open source Astronomy software <span style="box-sizing: border-box; font-weight: 700;">"Stellarium"</span> - to enjoy the realistic sky.⭐🌟⋆</span></h3>
<h3 style="background-color: white; box-sizing: border-box; color: #282828; font-size: 24px; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;">It can be downloaded at <span style="box-sizing: border-box; font-weight: 700;"><a href="https://stellarium.org/">https://stellarium.org/</a></span></span></h3>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<span style="font-family: "trebuchet ms" , sans-serif;">Set the location (latitude, longitude), change the time, play and watch !!!</span></div>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<span style="font-family: "trebuchet ms" , sans-serif;">This would be really interesting and rewarding activity. </span></div>
<hr style="background-color: white; border-bottom: 0px; border-image: initial; border-left: 0px; border-right: 0px; border-top-color: rgb(238, 238, 238); border-top-style: solid; box-sizing: content-box; color: #282828; font-size: 16px; height: 0px; margin-bottom: 20px; margin-top: 20px;" />
<h2 style="background-color: white; box-sizing: border-box; color: #282828; font-size: 30px; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;">Now, let us see how an <span style="box-sizing: border-box; font-weight: 700;">Annular Solar Eclipse of<u style="box-sizing: border-box;"> 26 December 2019</u> 📅</span>look like.</span></h2>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<span style="font-family: "trebuchet ms" , sans-serif;">An Annular Solar Eclipse takes place when the Moon is more farther from the Earth than during normal Solar eclipse and happens when the Moon covers the Sun's center, leaving the Sun's visible outer edges.</span></div>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<br /></div>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<span style="font-family: "trebuchet ms" , sans-serif;">I have simulated the event for two different locations.</span></div>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<span style="font-family: "trebuchet ms" , sans-serif;">1) over Gadanki, Tirupati where my laboratory is situated and</span></div>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<span style="font-family: "trebuchet ms" , sans-serif;">2) over Coimbatore when annular ring is clearer.</span></div>
<div style="background-color: white; box-sizing: border-box; color: #282828; font-size: 16px; margin-bottom: 10px;">
<span style="font-family: "trebuchet ms" , sans-serif;">I have made a <span style="box-sizing: border-box; font-weight: 700;">movie</span> of the events and can be watched using the following links </span></div>
<h3 style="background-color: white; box-sizing: border-box; color: #282828; font-size: 24px; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;">Watch the movie🎥: <br style="box-sizing: border-box;" />click the links or copy, paste the links in a new tab</span></h3>
<h2 style="background-color: white; box-sizing: border-box; color: #282828; font-size: 30px; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;">Annular Solar Eclipse over Gadanki, NARL, <span style="box-sizing: border-box; font-weight: 700;"><a href="https://youtu.be/MMklHk4cgPk">https://youtu.be/MMklHk4cgPk</a></span></span></h2>
<div class="separator" style="clear: both; text-align: center;">
<iframe allowfullscreen="" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/MMklHk4cgPk/0.jpg" frameborder="0" height="266" src="https://www.youtube.com/embed/MMklHk4cgPk?feature=player_embedded" width="320"></iframe></div>
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<span style="font-family: "trebuchet ms" , sans-serif;"><br /></span></div>
<h2 style="background-color: white; box-sizing: border-box; color: #282828; font-size: 30px; font-weight: 500; line-height: 1.1; margin-bottom: 10px; margin-top: 20px;">
<span style="font-family: "trebuchet ms" , sans-serif;">Annular Solar Eclipse over Coimbatore <span style="box-sizing: border-box; font-weight: 700;"><a href="https://youtu.be/JiO89OWVizY">https://youtu.be/JiO89OWVizY</a> </span></span></h2>
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<span style="background-color: white; color: #282828; font-family: "trebuchet ms" , sans-serif; font-size: 16px;">Have a great time exploring the sky !</span></div>
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<span style="font-family: "trebuchet ms" , sans-serif;">Let this be an introduction to the sky !</span></div>
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<span style="font-family: "trebuchet ms" , sans-serif;">PS: <span style="box-sizing: border-box; font-weight: 700;">Never look at the sun directly during any type of solar eclipse! </span> <br style="box-sizing: border-box;" />It can damage your eyes. Use proper filters/ pin hole camera/ projections etc.</span></div>
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Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-55850712523438168922018-09-11T22:35:00.000+05:302018-09-11T22:35:29.138+05:30Unraveling of cloud types during phases of monsoon intra‐seasonal oscillations by a Ka‐band Doppler weather radar - Atmospheric Science Letters<div dir="ltr" style="text-align: left;" trbidi="on">
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Our paper published in the Atmospheric Science Letters on different types of clouds during monsoon phases. The study was mainly carried out using Ka-band doppler weather radar of IITM.<br />
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<span style="color: blue; font-family: Courier New, Courier, monospace;"><b>https://rmets.onlinelibrary.wiley.com/doi/abs/10.1002/asl.847</b></span><br />
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Chakravarty, K., Pokhrel, S., Kalshetti, M., Nair, A. K. M., Kalapureddy, M. C. R., Deshpande, S. M., … Goswami, B. N. (2018). Unraveling of cloud types during phases of monsoon intra-seasonal oscillations by a Ka-band Doppler weather radar. <i>Atmospheric Science Letters</i>, <i>19</i>(9), e847. http://doi.org/10.1002/asl.847</div>
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<img border="0" data-original-height="508" data-original-width="697" height="466" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgF4ShIV-K9tAsP2wGf1R55bnkf2F5PF0Dmz1qQFlE82Ll9DYTasLzDi_12sJYmx7LL4yK-Iz0JBQoSJSlz1hE0BYcsMc9cmmH8qhchduKW092zLf9rgbDYN085k_gC1vWCiC9mSqGzM4s/s640/ASL.png" width="640" /><a href="https://doi.org/10.1002/asl.847" target="_blank">https://doi.org/10.1002/asl.847</a></div>
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Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-71153468331956623742018-09-11T22:28:00.000+05:302018-09-11T22:28:50.315+05:30Enhanced daytime occurrence of clouds in the tropical upper troposphere over land and ocean -Atmospheric Research<div dir="ltr" style="text-align: left;" trbidi="on">
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Our article<br />
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<span class="title-text" style="box-sizing: border-box; margin: 0px; padding: 0px;">"Enhanced daytime occurrence of clouds in the tropical upper troposphere over land and ocean"</span></h1>
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<span class="title-text" style="box-sizing: border-box; margin: 0px; padding: 0px;">published in Atmospheric Research </span></div>
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<span style="color: blue; font-family: Courier New, Courier, monospace;"><b>Gupta, A. K., Rajeev, K., Sijikumar, S., & Nair, A. K. M. (2018). Enhanced daytime occurrence of clouds in the tropical upper troposphere over land and ocean. <i>Atmospheric Research</i>, <i>201</i>(October 2017), 133–143. http://doi.org/10.1016/j.atmosres.2017.10.018</b></span></div>
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<span class="title-text" style="box-sizing: border-box; margin: 0px; padding: 0px;"><a href="https://www.sciencedirect.com/science/article/pii/S0169809517302235">https://www.sciencedirect.com/science/article/pii/S0169809517302235</a></span></div>
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<a href="https://www.sciencedirect.com/science/article/pii/S0169809517302235" target="_blank"><img alt=" Read Full >> from Atmospheric Research >> Elsevier" border="0" data-original-height="548" data-original-width="660" height="529" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqpJVyU9_reJJBTPgvRcSorp6t-phpXvv2F8_M1YqmhwkloDzjg8e-c007m9Zf5LT-gBvSHuo-7QIjJxnnXT4wPnLMAscQ-SPb1SDYwDnfWOS9gYi-wNphBpB92uzWqDZURhe1dJpapf4/s640/ENhanced_daytime_clouds_AtmosRes.png" width="640" /></a></div>
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Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-69875237942309660672017-10-17T14:16:00.002+05:302017-10-17T14:16:15.974+05:30Cloud feedback regulating the “pool of inhibited cloudiness” <div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-size: large;">Our latest paper on the</span><span style="font-size: large;"><b>"Role of cloud feedback in regulating the “pool of inhibited cloudiness” over the Bay of Bengal" </b></span><br /><span style="font-size: large;">published in <b><i>Springer Nature's </i>Meteorology and Atmospheric Physics</b>.<br /><a class="ot-anchor aaTEdf" dir="ltr" href="https://goo.gl/bNdLFg" rel="nofollow" target="_blank">https://goo.gl/bNdLFg</a><br /><br />Read & Share Full Article here: <br /> <a class="ot-anchor aaTEdf" dir="ltr" href="http://rdcu.be/wOmz" rel="nofollow" target="_blank">http://rdcu.be/wOmz</a></span><br />
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<span style="font-size: large;"><b>Anish Kumar M. Nair, T. N. Rao and K. Rajeev </b></span><br />
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<span style="font-size: large;"><b><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaaGz7aHdFMXxNEaFh6DWNNVqYnzavotcrS36uvPPWr62_Z7P7KR2tlRbw7cuuBfVILGLmOcO5tsHZPYL0YK-qSBIJH74H7HoBHx0Gejn9hEg2m5QEX7ojE2EkXHOCHlF2HoP1Rmaz2Ug/s1600/Title2.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="352" data-original-width="819" height="273" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaaGz7aHdFMXxNEaFh6DWNNVqYnzavotcrS36uvPPWr62_Z7P7KR2tlRbw7cuuBfVILGLmOcO5tsHZPYL0YK-qSBIJH74H7HoBHx0Gejn9hEg2m5QEX7ojE2EkXHOCHlF2HoP1Rmaz2Ug/s640/Title2.JPG" width="640" /></a></b></span></div>
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<span style="font-size: large;"><b><span style="font-size: small;"><u> Reference .bib</u></span></b></span></h3>
<span style="font-size: large;"><b> </b><span style="font-size: x-small;">@Article{nair2017,<br /> author = {Nair, Anish Kumar M. and Rao, T. Narayana and Rajeev, K.},<br /> title = {Role of cloud feedback in regulating the “pool of inhibited cloudiness” over the Bay of Bengal},<br /> journal = {Meteorology and Atmospheric Physics},<br /> year = {2017},<br /> pages = {1--12},<br /> month = {10},<br /> issn = {0177-7971},<br /> abstract = {Cloud-circulation feedback by latent heating (LH) is a major contributor for driving atmospheric circulation. This study examines the potential role of spatial variations of LH in driving a mini-circulation for generating the “pool of inhibited cloudiness”, where cloud formation in the lower and middle troposphere is significantly inhibited over the southwest Bay of Bengal (BoB) during the Indian summer monsoon. Spaceborne observations show that LH rates in the deep convective regions of the head BoB are as high as 0.2 K/h, while that over the “pool” are about 5 times smaller. This differential heating results in modulating the mean circulation. 20 years of reanalysis data show good correlation between (a) upper troposphere (300 hPa) convergence and lower tropospheric (1000 hPa) divergence at the “pool” and (b) lower tropospheric divergence at the “pool” and lower tropospheric convergence at the head BoB as well as at the west coast of India. Besides the orographic influence, a portion of the air mass descending at the “pool” arises from deep convective regions in the north BoB and equatorial trough. This subsidence is responsible for the persistent inhibition to cloud formation at the “pool”. This case forms a classic example of the cloud-circulation feedback.},<br /> doi = {10.1007/s00703-017-0560-7},<br /> url = {http:https://doi.org/10.1007/s00703-017-0560-7},<br />}</span></span><br />
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Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-66776947494735111762017-10-11T20:13:00.001+05:302017-10-11T20:19:23.078+05:30TV interview with Dr.Suresh Babu, Scientist, SPL, VSSC, ISRO<div dir="ltr" style="text-align: left;" trbidi="on">
Congrats Dr. Suresh Babu for bagging the prestigious Shanthi Swarup Bhatnagar Prize 2017.<br />
<a href="http://ssbprize.gov.in/Content/Detail.aspx?AID=529" target="_blank">CLICK HERE </a><br />
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Proud of you...!!!<br />
Wishing you and team more success !!<br />
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Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-53224438286587489522016-09-23T23:33:00.000+05:302016-09-23T23:37:02.636+05:30Autumnal Equinox 2016 as seen from Space (animated)<div dir="ltr" style="text-align: left;" trbidi="on">
An <b>Equinox</b> is the astronomical event when both the hemispheres have <i><b>equal duration and amount of sunshine.</b></i><br />
Sun would be exactly overhead of the equator.<br />
It happens twice in a year <b>Spring (Summer) equinox (20 March)</b> and <b>Vernal (Autumnal) equinox (22 September)</b>.<br />
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Here is the view of the beautiful event from space for 22 September 2016.<br />
I have animated it <i>(time series for the day).</i><br />
Watch the day-night solar terminator move through the earth.<br />
Observe the equal area of sunshine and night on either hemisphere.<br />
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The visible imagery is from MeteoSat VISSR (IODC) stationed at 57deg.E longitude above equator in a geostationary orbit.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRsVN_GvG35nsXEjUAwNUcdOEiMyl5KOet4dBzp8sShX_tpwqGxhnUl3NDv6Qva_f1PtYCCfGTTZZHnk-kmcbhwLv4_KTSWA6Wtoqx0J4YTkezdYQIHn101nDdUFRwWRmWVIF31gnTkQE/s1600/Equinox_22Sep2016_SatelliteImage.gif" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="395" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRsVN_GvG35nsXEjUAwNUcdOEiMyl5KOet4dBzp8sShX_tpwqGxhnUl3NDv6Qva_f1PtYCCfGTTZZHnk-kmcbhwLv4_KTSWA6Wtoqx0J4YTkezdYQIHn101nDdUFRwWRmWVIF31gnTkQE/s400/Equinox_22Sep2016_SatelliteImage.gif" width="400" /></a></div>
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For a typical comparison of Equinoxes with Solistices, you may go through this link <a href="http://akmnscience.blogspot.in/2012/07/equinox-solstice-better-view.html">http://akmnscience.blogspot.in/2012/07/equinox-solstice-better-view.html</a><br />
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Image Courtesy: Dundee Satellite Receiving Station <a href="http://www.sat.dundee.ac.uk/">http://www.sat.dundee.ac.uk/</a></div>
Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-84541772892684985932016-03-08T13:59:00.000+05:302016-03-08T14:01:10.565+05:30Solar Eclipse over Tirupati 09 Mar 2016 (simulated)<div dir="ltr" style="text-align: left;" trbidi="on">
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<b><span style="font-family: "trebuchet ms" , sans-serif;">Solar Eclipse (09 Mar 2016) is hardly visible over Tirupati.</span></b></div>
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<span style="font-family: "trebuchet ms" , sans-serif;">Here is an animated version (Figure (a)) of the simulation I have prepared using the free open source <i>"Stellarium"</i> software.</span></div>
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The Sun rises over Tirupati by 06:23 IST.</div>
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Meanwhile eclipse has already begun and being in penumbra region, it's partial eclipse over here.</div>
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<a href="https://goo.gl/photos/faUPwTacDkcyzPwTA" target="_blank">Click here to see the eclipse </a></div>
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For reference, the figure (b) of eclipse locations are shown in the figure below (scroll down) which also shows time in Tirupati during the events. </div>
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(courtesy: timeanddate.com )</div>
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<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhOcEDwNGDqvH1RmyJ8PqZFI0uiXQAHOrJ-kJpPmAnceocGweA5DYqm9pPjo7TxP82vJMJK0w5wPftB-QRYDtL8JX_GOnn_6cNbvCVpTqfpiweEfX5aw_qNyQdCQwV4alRzqI-JXrXMzjc/s1600/Solar_eclipse_animated_Tirupati_09Mar2016.gif" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhOcEDwNGDqvH1RmyJ8PqZFI0uiXQAHOrJ-kJpPmAnceocGweA5DYqm9pPjo7TxP82vJMJK0w5wPftB-QRYDtL8JX_GOnn_6cNbvCVpTqfpiweEfX5aw_qNyQdCQwV4alRzqI-JXrXMzjc/s640/Solar_eclipse_animated_Tirupati_09Mar2016.gif" width="640" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Figure (a): Animation of the solar eclipse (simulated) over Tirupati.<br />'E' indicates East</td></tr>
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<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBn70uMnjdjX5e8YufEmE47rrgy88-aDHPOOqFtsbE6bFhwJUKvh7Hx90a2M2eLjsDcEBHpc_G5wC3EfcWZDeJFsZGQyRLwPEfMzGs_fpd18-LR1f6z1GRsmcxMm_3J-_OlpDt-dLZbmI/s1600/Screenshot+from+2016-03-08+13%253A14%253A49.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBn70uMnjdjX5e8YufEmE47rrgy88-aDHPOOqFtsbE6bFhwJUKvh7Hx90a2M2eLjsDcEBHpc_G5wC3EfcWZDeJFsZGQyRLwPEfMzGs_fpd18-LR1f6z1GRsmcxMm_3J-_OlpDt-dLZbmI/s640/Screenshot+from+2016-03-08+13%253A14%253A49.png" width="570" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Figure (b): How eclipse happens world wide (courtesy: timeanddate.com)</td></tr>
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Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com1Tirupati, Andhra Pradesh 517501, India13.6287557 79.41917949999992713.381864199999999 79.096455999999932 13.8756472 79.741902999999922tag:blogger.com,1999:blog-243636640333482726.post-89022313616884652832015-06-10T03:25:00.000+05:302015-06-10T03:25:37.044+05:30Lightning Photography<div dir="ltr" style="text-align: left;" trbidi="on">
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<span style="font-size: medium;">I am sharing a few <b>photos</b> of <b>Lightning</b> I had clicked yesterday night over National Atmospheric Research Laboratory, Dept. of Space located at Gadanki, Andhra Pradesh, India.</span><br />
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<span style="font-size: medium;">Cumulonimbus cloud band was observed in the eastern and southern sky and Gadanki was in periphery of the rain band.</span><br />
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<span style="font-size: medium;">Also see the <b>animated</b> <b>time</b> <b>series</b> <b>photos</b> of the<b> steps of lightning</b>. </span><div>
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<span style="font-size: medium;">Note the return stokes and bolts...!!<br />~~~~~~~~~</span></div>
<span style="font-size: medium;"><span style="font-size: medium;"><i>Recommended viewing: Full screen.</i></span></span><span style="font-size: medium;"><span style="font-size: medium;"><i><span style="font-size: medium;">Thanks to my Asus Zenfone.</span></i></span></span><br />
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Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-71551807970709403272014-05-07T00:01:00.000+05:302014-05-07T00:01:27.738+05:30CO2 at Record High concentration<div dir="ltr" style="text-align: left;" trbidi="on">
<strong><span style="color: #333333; font-size: 14;">Concentrations of the greenhouse gas carbon dioxide (CO2) <strong>in the global atmosphere has surpassed 400 ppm </strong>for the first time in human history in April.</span></strong><br />
<strong><span style="color: #333333; font-size: 14;">As on May 03, 2014 the value is still higher 401.80 ppm. </span></strong><br />
<strong><span style="color: #333333; font-size: 14;"><br />Read more from official website</span></strong><br />
<strong><span style="color: #333333; font-size: 14;">http://keelingcurve.ucsd.edu/</span></strong><br />
<strong><span style="color: #333333; font-size: 14;"><br /></span></strong>
<strong><span style="color: #333333; font-size: 14;">Here is the screen shot.</span></strong><br />
<strong><span style="color: #333333; font-size: 14;">Courtesy: Scripps Institute of Oceanography</span></strong><br />
<strong><span style="color: #333333; font-size: 14;"><br /></span></strong>
<div class="separator" style="clear: both; text-align: center;">
<img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXzOrNwrCpFDgnU6vN1EMnkwOu5EMFW7P2m8BJYX1SQ7g0sBgHkkaONIOhgOM8TE61Q13sHhocFypgviKk1W3qMn9Jmxe0HrExFZRfIYr5m3kZVtLD9RdFvcaF8TkFK5y3_OekXsfLP9k/s1600/KeelingCurve.png" height="400" width="640" /><a href="http://keelingcurve.ucsd.edu/" target="_blank">http://keelingcurve.ucsd.edu/</a></div>
<strong><span style="color: #333333; font-size: 14;"><br /></span></strong>
<strong><span style="color: #333333; font-size: 14;"><br /></span></strong></div>
Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-15490501317638141962013-11-19T23:22:00.001+05:302013-11-19T23:22:50.504+05:30Satellite Images - Easy to interpret<div dir="ltr" style="text-align: left;" trbidi="on">
Satellite images are are rich with useful and interesting information.<br />
It is not difficult to interpret them...<br />
here are some tips and stratergies....<br />
<br />
<img alt="High-resolution satellite view of the Boulder water treatment plant." height="212" src="http://earthobservatory.nasa.gov/Features/ColorImage/images/watertreatment_wv2_2013257_highres_crop.jpg" width="320" /><br />
<br />
They can show us how much a city has changed, how well our crops are
growing, where a fire is burning, or when a storm is coming.<br />
<br />
Here is a practical approach as given by Nasa Earth Observatory.<br />
<br />
<ol class="list">
<li>Look for a scale</li>
<li>Look for patterns, shapes, and textures</li>
<li>Define the colors (including shadows)</li>
<li>Find north</li>
<li>Consider your prior knowledge</li>
</ol>
Read more.... <br />Check this link.....<br />
<br />
<a href="http://earthobservatory.nasa.gov/Features/ColorImage/?src=eorss-features">http://earthobservatory.nasa.gov/Features/ColorImage/?src=eorss-features</a><br />
<br />
<img alt="fulldiskwest_goe_2013257_crop_720" height="320" src="http://earthobservatory.nasa.gov/Features/ColorImage/images/fulldiskwest_goe_2013257_crop_720.jpg" width="320" /><br />
Courtesy: Nasa Earth Observatory </div>
Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-14244855052700673562013-10-31T23:17:00.001+05:302013-10-31T23:19:07.649+05:30Antarctic Sea Ice Growing ?<div dir="ltr" style="text-align: left;" trbidi="on">
Every year during winter time (Aug-Sep) , extend of Antarctic sea ice increases.<br />
But this year...... it has reached record largest extend....<br />
Reports NASA.<br />
Interesting .....! Isn't it....?<br />
<img alt="Antarctic Sea Ice Reaches New Maximum Extent" height="320" src="http://eoimages.gsfc.nasa.gov/images/imagerecords/82000/82160/spseaice_am2_2013265.jpg" title="Antarctic Sea Ice Reaches New Maximum Extent" width="320" /> <br />
<br />
Read the following graph to compare the changes in sea ice extend.<br />
<br />
<img height="161" src="http://eoimages.gsfc.nasa.gov/images/imagerecords/82000/82160/spseaicemax_extent_chart_2013.jpg" width="640" /><br />
<br />
Read More: <br />
<a href="http://earthobservatory.nasa.gov/IOTD/view.php?id=82160&src=share#.UnKWFBFQjAQ.blogger">Antarctic Sea Ice Reaches New Maximum Extent</a><br />
<br />
<br />
Why should it grow....?<br />
It's an interesting field of research....!<br />
<br />
There are few hypothesis...<br />
Read More <a href="http://theconversation.com/why-is-antarctic-sea-ice-growing-19605">http://theconversation.com/why-is-antarctic-sea-ice-growing-19605</a><br />
<br />
Courtesy: NASA earth observatory</div>
Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-59383793009001887962013-07-29T02:54:00.000+05:302013-07-29T02:54:36.852+05:30Warmest Decade<div dir="ltr" style="text-align: left;" trbidi="on">
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><img alt="Temperature data from four international science institutions. All show rapid warming in the past few decades and that the last decade has been the warmest on record." id="main_image" src="http://climate.nasa.gov/system/content_pages/main_images/Temp_anomaly.jpg" style="margin-left: auto; margin-right: auto;" /></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Temperature data from four international science institutions. All show
rapid warming in the past few decades and that the last decade has been
the warmest on record.</td></tr>
</tbody></table>
<br />
<br />
<br />
Courtesy:Nasa Global CLimate change<br />
http://climate.nasa.gov/scientific-consensus<br />
</div>
Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-73949461554286718332013-07-12T01:55:00.000+05:302013-07-12T01:55:16.155+05:30El Nino activity in 2oth century and global warming<div dir="ltr" style="text-align: left;" trbidi="on">
High El Nino -Southern Oscillation (ENSO) activity in the late 20th century is a footprint of global warming says a recent study.<br />
An international team of scientists spearheaded by Jinbao Li and
Shang-Ping Xie, while working at the International Pacific Research
Center, University of Hawaii at Manoa, has compiled 2,222 tree-ring
chronologies of the past seven centuries from both the tropics and
mid-latitudes in both hemispheres. Their work is published in the June
30, 2013 online issue of <i>Nature Climate Change</i>.<br />
<br />
Li, J., S.-P. Xie, E. R. Cook, M. Morales, D. Christie, N. Johnson, F.
Chen, R. D'Arrigo, A. Fowler, X. Gou, and K. Fang (2013): El Niño
modulations over the past seven centuries. <i>Nature Climate Change</i>.
<a href="http://dx.doi.org/10.1038/nclimate1936" target="_blank">http://dx.doi.org/10.1038/nclimate1936</a> <br />
<br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="http://media.eurekalert.org/multimedia_prod/pub/web/58487_web.jpg" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" height="116" src="http://media.eurekalert.org/multimedia_prod/pub/web/58487_web.jpg" width="320" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><b>Caption:</b> This graph shows El Niño variability derived from
tree rings (blue) and instrumental measurements (red). The dashed lines
indicate boundary for natural variability. Recent El Niño behavior is
largely beyond natural variability.<br />
<b>Credit:</b> International Pacific Research Center</td></tr>
</tbody></table>
<br />
Read More: <a href="http://www.eurekalert.org/pub_releases/2013-06/uoha-enu062813.php">http://www.eurekalert.org/pub_releases/2013-06/uoha-enu062813.php</a><br />
and <a href="http://dx.doi.org/10.1038/nclimate1936" target="_blank">http://dx.doi.org/10.1038/nclimate1936</a></div>
Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-39975126656466325042013-01-30T23:55:00.003+05:302013-01-30T23:55:51.597+05:30Global warming and Precipitation<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-size: large;">Global warming from greenhouse gases affects rainfall patterns in the world differently than that from solar heating, according to a study.</span><br />
<span style="font-size: large;">The scientists, led by Jian Liu (Chinese Academy of Sciences) and Bin Wang (International Pacific Research Center, University of Hawaii at Manoa), showed that global rainfall has increased less over the present-day warming period than during the Medieval Warm Period, even though temperatures are higher today than they were then.</span><br />
<span style="font-size: large;">As a result of global warming, precipitation is likely to increase in high latitudes and the tropics and to decrease in already dry subtropical regions.</span><br />
<span style="font-size: large;"><br /></span>
<span style="font-size: large;">Read More</span><br />
<a href="http://phys.org/news/2013-01-greenhouse-gases-solar-complexity-global.html"><span style="font-size: large;">http://phys.org/news/2013-01-greenhouse-gases-solar-complexity-global.html</span></a><br />
<span style="font-size: large;">http://www.nature.com/nature/journal/v493/n7434/full/nature11784.html</span><br />
<span style="font-size: large;"><br /></span>
<span style="font-size: large;">doi:10.1038/nature11784</span></div>
Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-84869693555283384372013-01-17T01:38:00.000+05:302013-01-17T01:38:07.714+05:30Global Warming Trends ... alarming<div dir="ltr" style="text-align: left;" trbidi="on">
<img alt="Long-Term Global Warming Trend Continues " src="http://eoimages.gsfc.nasa.gov/images/imagerecords/80000/80167/temperature_gis_2012.png" /><br />
<br />
2012 was the ninth warmest year since 1880.<br />
<span style="background-color: whitesmoke; color: #383838; font-family: 'Lucida Grande', 'Lucida Sans', Arial, Helvetica, sans-serif; font-size: 11.666666030883789px; line-height: 18px;">The map at the top depicts temperature anomalies, or changes, by region in 2012; it does not show absolute temperature. Reds and blues show how much warmer or cooler each area was in 2012 compared to an averaged base period from 1951–1980. For more explanation of how the analysis works, read </span><a href="http://earthobservatory.nasa.gov/Features/WorldOfChange/decadaltemp.php" style="background-attachment: scroll; background-color: whitesmoke; background-position: 0px 0px; border: 0px; color: #005dbd; font-family: 'Lucida Grande', 'Lucida Sans', Arial, Helvetica, sans-serif; font-size: 11.666666030883789px; line-height: 18px; margin: 0px; outline: 0px; padding: 0px; text-decoration: initial; vertical-align: baseline;">World of Change: Global Temperatures.</a><br />
<br />
<span style="background-color: whitesmoke; color: #383838; font-family: 'Lucida Grande', 'Lucida Sans', Arial, Helvetica, sans-serif; font-size: 11.666666030883789px; line-height: 18px;">The average temperature in 2012 was about 14.6 degrees Celsius (58.3 degrees Fahrenheit), which is 0.55°C (1.0°F) warmer than the mid-20th century base period. The average global temperature has increased 0.8°C (1.4°F) since 1880, and most of that change has occurred in the past four decades.</span><br />
<span style="background-color: whitesmoke; color: #383838; font-family: 'Lucida Grande', 'Lucida Sans', Arial, Helvetica, sans-serif; font-size: 11.666666030883789px; line-height: 18px;"><br /></span>
<span style="background-color: whitesmoke; color: #383838; font-family: 'Lucida Grande', 'Lucida Sans', Arial, Helvetica, sans-serif; font-size: 11.666666030883789px; line-height: 18px;">Read more: </span><a href="http://earthobservatory.nasa.gov/IOTD/view.php?id=80167&src=eoa-iotd">http://earthobservatory.nasa.gov/IOTD/view.php?id=80167&src=eoa-iotd</a><br />
<br /></div>
Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-60592049976146405682012-12-06T22:56:00.000+05:302012-12-06T22:56:19.293+05:30Ice darkening in Greenland<div dir="ltr" style="text-align: left;" trbidi="on">
Greenland is an immense, glittering expanse of snow and ice. But in recent summers, satellites have been observing less “glitter” from the Northern Hemisphere’s largest ice expanse due to surface melt and other changes caused by warmer temperatures. The summer of 2012 found Greenland darker than it has been since ice-sheet-wide observations began in 2000.<br />
<br />
<img height="400" src="http://www.climatewatch.noaa.gov/wp-content/uploads/2012/12/albedo_anomnc_JJA2012_720.jpg" width="381" /><br />
<span style="background-color: white; color: #333333; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 14px; line-height: 18px;">The darkest areas occurred around the perimeter of the island—the lowest elevations, where melting is most significant—but virtually the entire ice sheet showed below-average reflectivity.</span><br />
<span style="background-color: white; color: #333333; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 14px; line-height: 18px;"><br /></span>
<span style="background-color: white; color: #333333; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 14px; line-height: 18px;">Courtesy:</span><br />
<span style="background-color: white; color: #333333; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 14px; line-height: 18px;">Climate Watch Magazine by NOAA</span><br />
<span style="background-color: white; font-size: 14px; line-height: 18px;"><span style="color: #333333; font-family: Arial, Verdana, Helvetica, sans-serif;">http://www.climatewatch.noaa.gov/article/2012/less-glitter-greenland-ice-sheet-continued-to-darken-in-summer-2012</span></span><br />
<br />
<em style="background-color: white; color: #333333; font-family: Arial, Verdana, Helvetica, sans-serif; font-size: 14px; line-height: 18px;">Map by NOAA Climate.gov team, based on NASA MODIS albedo data provided by Jason Box, The Ohio State University. Inset image is from NASA’s Terra satellite, courtesy the <a href="http://earthdata.nasa.gov/data/near-real-time-data/rapid-response" style="border: none; color: #4092d3; outline: none; text-decoration: initial;">LANCE MODIS Rapid Response Project.</a> Reviewed by Jason Box.</em></div>
Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-39170963428482606572012-11-10T18:03:00.000+05:302012-11-10T18:03:04.013+05:30Global warming likely to be in the higher side<div dir="ltr" style="text-align: left;" trbidi="on">
Climate model projections that show a greater rise in global temperature are likely to prove more accurate than those showing a lesser rise.<br />
<br />
<a href="https://www2.ucar.edu/sites/default/files/news/2012/fasullo-final-sm_0.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="temperature change from increased CO2" border="0" height="200" src="https://www2.ucar.edu/sites/default/files/news/2012/fasullo-final-sm_0.jpg" width="191" /></a>The study was published in the journal - Science.<br />
<br />
National Center for Atmospheric Research scientists John Fasullo and Kevin Trenberth analyzed how well 16 leading sophisticated climate models reproduce observed relative humidity in Earth's tropics and subtropics.<br />
They used observations from two NASA satellite instruments - the Atmospheric Infrared Sounder (AIRS) instrument on NASA's Aqua spacecraft and the Clouds and Earth's Radiant Energy System (CERES) .<br />
<br />
<b>Climate model projections showing a greater rise in global temperature are likely to prove more accurate than those showing a lesser rise, according to them.</b><br />
<br />
<br />
Read in detail: <a href="https://www2.ucar.edu/atmosnews/news/8264/future-warming-likely-be-high-side-climate-projections-analysis-finds">https://www2.ucar.edu/atmosnews/news/8264/future-warming-likely-be-high-side-climate-projections-analysis-finds</a><br />
<br />
<a href="http://www.nasa.gov/topics/earth/features/earth20121108.html">http://www.nasa.gov/topics/earth/features/earth20121108.html</a></div>
Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-84061197908853917002012-09-03T21:02:00.000+05:302012-09-20T22:42:08.443+05:30When Cirrus descends .......<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-size: large;">Have you heard of Cirrus cloud descending .........?</span><br />
<br />
<ul style="text-align: left;">
<li><span style="font-size: large;">What is it ......?</span></li>
<li><span style="font-size: large;">Is it a frequent phenomenon .....?</span></li>
<li><span style="font-size: large;">Does it have seasonal dependence ....?</span></li>
<li><span style="font-size: large;">Where does it occur ......?</span></li>
<li><span style="font-size: large;">Why do cirrus descend .....?</span></li>
<li><span style="font-size: large;">What is it's impact .......?</span></li>
</ul>
<div>
<span style="font-size: large;">We have discovered the phenomenon using 3 years of lidar observations over Thiruvananthapuram, near southern tip of India that <b>Cirrus clouds frequently DESCEND.....!</b></span></div>
<div>
<span style="font-size: large;"><br /></span></div>
<div>
<span style="font-size: large;">After analysing the data together with other observations and models, we have come up answers to the above questions. </span></div>
<div>
<span style="font-size: large;"><br /></span></div>
<div>
<span style="font-size: large;">The observations and results are now accepted by the scientific community and it finds a place in the <i><b>Journal of Geophysical Research - JGR (Atmosphere).</b></i></span></div>
<div>
<span style="font-size: large;"><br /></span></div>
<div>
<span style="font-size: large;">Read more...</span></div>
<div>
<span style="font-size: large;">Here is the link: </span><br />
<h4 style="text-align: left;">
<a href="http://www.agu.org/pubs/crossref/2012/2011JD017406.shtml"><span style="font-size: large;">http://www.agu.org/pubs/crossref/2012/2011JD017406.shtml</span></a></h4>
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<div>
<div style="text-align: left;">
<br /><span class="bold" style="background-color: #f8f8f8; font-family: Arial, Helvetica, sans-serif; font-weight: bold; line-height: 16.053333282470703px;"><b> </b></span><span id="authors" style="background-color: #f8f8f8; font-family: Arial, Helvetica, sans-serif; line-height: 16.053333282470703px;"><span id="first-author">Nair, A. K. M.</span>, K. Rajeev, M. K. Mishra, B. V. Thampi, and K. Parameswaran</span><span style="background-color: #f8f8f8; font-family: Arial, Helvetica, sans-serif; line-height: 16.053333282470703px;"> (</span><span id="year" style="background-color: #f8f8f8; font-family: Arial, Helvetica, sans-serif; line-height: 16.053333282470703px;">2012</span><span style="background-color: #f8f8f8; font-family: Arial, Helvetica, sans-serif; line-height: 16.053333282470703px;">), </span><span class="title" style="background-color: #f8f8f8; font-family: Arial, Helvetica, sans-serif; line-height: 16.053333282470703px; margin-bottom: 0px; margin-top: 0px;">Multiyear lidar observations of the descending nature of tropical cirrus clouds</span><span style="background-color: #f8f8f8; font-family: Arial, Helvetica, sans-serif; line-height: 16.053333282470703px;">, </span><span id="journal" style="background-color: #f8f8f8; font-family: Arial, Helvetica, sans-serif; line-height: 16.053333282470703px;"><span class="ital" style="font-style: italic;"><i>J. Geophys. Res.</i></span></span><span style="background-color: #f8f8f8; font-family: Arial, Helvetica, sans-serif; line-height: 16.053333282470703px;">, </span><span id="volume" style="background-color: #f8f8f8; font-family: Arial, Helvetica, sans-serif; line-height: 16.053333282470703px;"><span class="ital" style="font-style: italic;">117</span></span><span style="background-color: #f8f8f8; font-family: Arial, Helvetica, sans-serif; line-height: 16.053333282470703px;">, D18201, doi:10.1029/2011JD017406.</span></div>
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Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-1213209507973715182012-08-02T23:32:00.000+05:302012-08-02T23:32:25.870+05:30Inexpensive and Efficient Solar Cell<div dir="ltr" style="text-align: left;" trbidi="on">
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em; text-align: left;"><tbody>
<tr><td style="text-align: center;"><img alt="Research group creates highly sensitive photodetector from graphene and quantum dots" height="264" src="http://cdn.physorg.com/newman/gfx/news/2012/yydhvcvv.jpg" style="margin-left: auto; margin-right: auto;" width="320" /></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="background-color: white; font-family: Arial, Helvetica, Sans; font-size: 12px; text-align: -webkit-auto;">Hybrid graphene-quantum dot phototransistor. Image (c) Nature Nanotechnology (2012) doi:10.1038/nnano.2012.60</span><br style="background-color: white; clear: both; font-family: Arial, Helvetica, Sans; font-size: 12px; text-align: -webkit-auto;" /><br style="background-color: white; clear: both; font-family: Arial, Helvetica, Sans; font-size: 12px; text-align: -webkit-auto;" /></td></tr>
</tbody></table>
Engineers have used inexpensive materials to create a solar cell certified at a world-record 7.0 percent efficiency.<br />
<br />
The solar cell represents a 37 percent increase in efficiency over the previous certified record.<br />
A breakthrough in the development of colloidal quantum dot (CQD) films allowed the researchers from the University of Toronto and King Abdullah University of Science & Technology (KAUST) to develop the solar cell. Their work is featured in a letter published in Nature Nanotechnology.<br />
<br />
Here is the original article from Nature Nanotechnology (published last week of July,2012)<br />
<a href="http://www.nature.com/nnano/journal/vaop/ncurrent/pdf/nnano.2012.127.pdf">http://www.nature.com/nnano/journal/vaop/ncurrent/pdf/nnano.2012.127.pdf</a><br />
<span style="background-color: white; font-family: Arial, Helvetica, Sans; font-size: 12px; text-align: -webkit-auto;">Hybrid graphene–quantum dot phototransistors with ultrahigh gain, Nature Nanotechnology (2012) doi:10.1038/nnano.2012.60</span><br style="background-color: white; clear: both; font-family: Arial, Helvetica, Sans; font-size: 12px; text-align: -webkit-auto;" /><br style="background-color: white; clear: both; font-family: Arial, Helvetica, Sans; font-size: 12px; text-align: -webkit-auto;" /><span style="background-color: white; font-family: Arial, Helvetica, Sans; font-size: 12px; text-align: -webkit-auto;">Read more at: </span><a href="http://phys.org/news/2012-05-group-highly-sensitive-photodetector-graphene.html#jCp" style="background-color: white; color: #0e3266; font-family: Arial, Helvetica, Sans; font-size: 12px; font-weight: bold; text-align: -webkit-auto;">http://phys.org/news/2012-05-group-highly-sensitive-photodetector-graphene.html#jCp</a><br />
<br />
In order to improve efficiency, the researchers needed a way to both reduce the number of “traps” for electrons associated with poor surface quality while simultaneously ensuring their films were very dense to absorb as much light as possible. The solution was a so-called “hybrid passivation” scheme.<br />
<br />
Read a review<br />
<a href="http://oilprice.com/Alternative-Energy/Solar-Energy/Researchers-Create-the-Worlds-Most-Efficient-Solar-Cell.html">http://oilprice.com/Alternative-Energy/Solar-Energy/Researchers-Create-the-Worlds-Most-Efficient-Solar-Cell.html</a><br />
<a href="http://www.sciencedaily.com/releases/2012/07/120729142319.htm">http://www.sciencedaily.com/releases/2012/07/120729142319.htm</a><br />
<a href="http://phys.org/news/2012-05-group-highly-sensitive-photodetector-graphene.html">http://phys.org/news/2012-05-group-highly-sensitive-photodetector-graphene.html</a><br />
</div>Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-45253823384139751002012-07-07T01:48:00.000+05:302012-07-07T01:48:50.460+05:30Equinox & Solstice - a better view<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-family: arial, sans-serif; line-height: 17px; text-align: -webkit-auto;">Equinox & Solstice (view from Space). </span><br />
<span style="font-family: arial, sans-serif; line-height: 17px; text-align: -webkit-auto;"><br /></span><br />
<span style="font-family: arial, sans-serif; line-height: 17px; text-align: -webkit-auto;">Doesn't it convey better information than the usual cartoons.....?</span><br />
<span style="font-family: arial, sans-serif; line-height: 17px; text-align: -webkit-auto;"><br /></span><br />
<span style="font-family: arial, sans-serif; line-height: 17px; text-align: -webkit-auto;"> I have taken the Satellite images from Meteosat via. Dundee satellite Receiving Station and made the matrix using GIMP.</span><br />
<span style="font-family: arial, sans-serif; font-size: 13px; line-height: 17px; text-align: -webkit-auto;"><br /></span><br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAK4JIRE9woyRNc_Txy_Yii5W9Mytq8DP-fIu2Pv5FyZTolTtNV60vCxHOIZWuyzQ0EMSFk5yHQjpnZKsh3WfIS4SHb-89jJx5IAL0i-cff49bT9zb5tyALJ8AtUBWYpgER7Va3DAEpME/s1600/Solstice_Equinox_1+%2528copy%2529.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="480" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAK4JIRE9woyRNc_Txy_Yii5W9Mytq8DP-fIu2Pv5FyZTolTtNV60vCxHOIZWuyzQ0EMSFk5yHQjpnZKsh3WfIS4SHb-89jJx5IAL0i-cff49bT9zb5tyALJ8AtUBWYpgER7Va3DAEpME/s640/Solstice_Equinox_1+%2528copy%2529.jpg" width="640" /></a></div>
<span style="font-family: arial, sans-serif; font-size: 13px; line-height: 17px; text-align: -webkit-auto;"><br /></span></div>Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-30834436559601066182012-06-06T23:34:00.002+05:302012-06-06T23:34:58.591+05:30Contrail - spreading.<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-size: large;">Have a look at these images, captured 2 hrs apart by MODIS of TERRA & AQUA.</span><br />
<span style="font-size: large;">We can clearly decipher the transition of <b>contrail</b> to<b> contrail cirrus </b>clouds.......</span><br />
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;">Increasing air pollution by planes is definitely pointing towards <b>increase</b> the in<b> Longwave radiative forcing</b> and thereby increasing the global warming potential....</span><br />
<br />
<img alt="The Evolution of a Contrail" height="425" src="http://eoimages.gsfc.nasa.gov/images/imagerecords/78000/78154/AtlanticOcean_tmo_2012147.jpg" width="640" /><br />
<br />
<img alt="The Evolution of a Contrail" height="425" src="http://eoimages.gsfc.nasa.gov/images/imagerecords/78000/78154/AtlanticOcean_amo_2012147.jpg" width="640" /><br />
<br />
<br />
Read more: <a href="http://earthobservatory.nasa.gov/IOTD/view.php?id=78154">http://earthobservatory.nasa.gov/IOTD/view.php?id=78154</a><br />
<br />
<br />
Image credit: <span style="background-color: whitesmoke; color: #7f7f7f; font-family: 'Lucida Grande', 'Lucida Sans', Arial, Helvetica, sans-serif; font-size: 12px; line-height: 18px; text-align: -webkit-auto;">Jeff Schmaltz, </span><a href="http://earthdata.nasa.gov/data/near-real-time-data/rapid-response" style="background-attachment: scroll; background-color: whitesmoke; background-position: 0px 0px; border: 0px; color: #005dbd; font-family: 'Lucida Grande', 'Lucida Sans', Arial, Helvetica, sans-serif; font-size: 12px; line-height: 18px; margin: 0px; outline: 0px; padding: 0px; text-align: -webkit-auto; text-decoration: none; vertical-align: baseline;">LANCE MODIS Rapid Response Team,</a><span style="background-color: whitesmoke; color: #7f7f7f; font-family: 'Lucida Grande', 'Lucida Sans', Arial, Helvetica, sans-serif; font-size: 12px; line-height: 18px; text-align: -webkit-auto;"> Goddard Space Flight Center. Caption by Adam Voiland., NASA earth observatory</span><br />
<br /></div>Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0tag:blogger.com,1999:blog-243636640333482726.post-8815036569211101862012-05-24T21:09:00.000+05:302012-06-04T22:28:37.978+05:30Don't miss to watch the 'Transit of Venus'<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-size: large;">Be prepared to watch a heavenly drama on <b>6 June 2012.</b></span><br />
<span style="font-size: large;">The Venus can be seen as a black dot travelling across the Solar Disk.</span><br />
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;">Here is my Simulation:</span><br />
<img height="540" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTnLjsZxcdlro9uz6iD2fC9diKQGJwy0vvrh4imcHzxJhD5RQ71JMSTbgXD42pCGBrjp4Ce_iE9g7jUpblL7uX7v0mF7SuRlH4z6yre6Vzl4pJU3Ht3bndiZUmSb6MuwZDyH_gt-nZdR8/w497-h373/Venus_Transit_Simulation_AKMNair.gif" width="640" /><br />
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;">Yes, it is the<b><i> "Transit of Venus across the Sun"</i></b></span><br />
<span style="font-size: large;"><br /></span><br />
<table cellpadding="0" cellspacing="0" class="tr-caption-container" style="float: left; margin-right: 1em; text-align: left;"><tbody>
<tr><td style="text-align: center;"><a href="http://blogs.esa.int/venustransit/files/2012/05/inegress-298x300.png" imageanchor="1" style="clear: left; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><span style="font-size: large;"><img alt="Key phases during a transit of a planet across the face of the Sun are often referred to as 1st, 2nd, 3rd and 4th contact. Credit: Michael Zeiler, eclipse-maps.com" border="0" height="200" src="http://blogs.esa.int/venustransit/files/2012/05/inegress-298x300.png" width="198" /></span></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;"><span style="font-size: large;">Path-- L to R<br /><span style="background-color: #f1f1f1; color: #888888; font-family: 'Helvetica Neue', Arial, Helvetica, 'Nimbus Sans L', sans-serif; line-height: 18px;">Credit: Michael Zeiler, eclipse-maps.com</span></span></td></tr>
</tbody></table>
<span style="font-size: large;"><br /></span><br />
<br />
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;">India comes under the visibility of the event after Sunrise.</span><br />
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;">See the graphic below:</span><br />
<span style="font-size: large;"><b>Thiruvananthapuram</b> can view it right from<b> sunrise to 10:22 AM.</b></span><br />
<div class="separator" style="clear: both; text-align: center;">
<span style="font-size: large;"><a href="http://transitofvenus.nl/wp/where-when/local-transit-times/" target="_blank"><img border="0" height="273" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHbopeoviDBPI2fJfmFdHOzET_KWTk_TVnxG13OQg2V8RXStQaqICYNd0t9RKw58D3OyfO0JwooXEyPWbs3b3iBF7euXsc6SC6eJSJy0MMzHlEqBqzwoWHMihCbXcCs_C1LmniuSPjZpw/s640/Venus_Transit_2012June6.png" width="640" /></a><span id="goog_1804725916"></span><span id="goog_1804725917"></span><a href="http://www.blogger.com/"></a></span></div>
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;">The graphic was prepared using the tool provided in <a href="http://transitofvenus.nl/wp/where-when/local-transit-times/">http://transitofvenus.nl/wp/where-when/local-transit-times/</a> </span><br />
<span style="font-size: large;">You can change the location and see about your visibility to the drama.</span><br />
<span style="font-size: large;"><br /></span><br />
<span style="font-size: large;">Also read the following blog for wonderful information and graphics.</span><br />
<span style="font-size: large;"><a href="http://blogs.esa.int/venustransit/">http://blogs.esa.int/venustransit/</a> <i> (nice and informative blog by ESA)</i></span><br />
<span style="font-size: large;"><a href="http://eclipse-maps.com/Eclipse-Maps/Transits.html">http://eclipse-maps.com/Eclipse-Maps/Transits.html</a><i> (Transit maps)</i></span><br />
<span style="font-size: large;"><a href="http://sunearthday.nasa.gov/transitofvenus/">http://sunearthday.nasa.gov/transitofvenus/</a></span><br />
<br />
<span style="font-size: large;">You can also find how to watch the event....</span><br />
<span style="font-size: large;">Follow safe way.... take care of eyes......</span><br />
<i><span style="font-size: large;"><br /></span></i><br />
<i><span style="font-size: large;">Enjoy the phenomena......</span></i><br />
<i><span style="font-size: large;">otherwise you will have to wait till....2017 Dec 11.</span></i><br />
<i><br /></i></div>Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com2University of Kerala, Office Rd, Palayam, Thiruvananthapuram, Kerala, India8.5024235906309578 76.9477272033691418.4867195906309583 76.927986203369144 8.5181275906309573 76.967468203369137tag:blogger.com,1999:blog-243636640333482726.post-4923850763916557302012-05-22T23:49:00.000+05:302012-05-22T23:57:33.409+05:30Controlling Climate Change - Geo-Engineering<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="background-color: #444444; color: #f6b26b; font-family: Georgia, 'Times New Roman', serif;">There are many proposals to reduce the climatic impact and change because of the Global Warming.</span><br />
<span style="background-color: #444444; color: #f6b26b; font-family: Georgia, 'Times New Roman', serif;">Some of them tries to address the causative mechanism while some treats symptoms.....</span><br />
<span style="background-color: #444444; color: #f6b26b; font-family: Georgia, 'Times New Roman', serif; font-size: large;"><br /></span><br />
<span style="background-color: #444444; color: #f6b26b; font-family: Georgia, 'Times New Roman', serif;"><b>Geo-Engineering</b> is d<span style="line-height: 19px; text-align: -webkit-auto;">eliberate large-scale engineering and manipulation of the planetary environment to combat or counteract man made changes in atmosphere.</span></span><br />
<span style="line-height: 19px; text-align: -webkit-auto;"><span style="background-color: #444444; color: #f6b26b; font-family: Georgia, 'Times New Roman', serif;"><br /></span></span><br />
<span style="line-height: 19px; text-align: -webkit-auto;"><span style="background-color: #444444; color: #f6b26b; font-family: Georgia, 'Times New Roman', serif;">Have a look at the three proposals to reduce increasing temperature.</span></span><br />
<span style="line-height: 19px; text-align: -webkit-auto;"><span style="background-color: #444444; color: #f6b26b; font-family: Georgia, 'Times New Roman', serif;">Click on the image of use the link below for a recent article in BBC.</span></span><br />
<span style="background-color: white; font-family: sans-serif; font-size: 13px; line-height: 19px; text-align: -webkit-auto;"><br /></span><br />
<a href="http://news.bbc.co.uk/2/hi/technology/8338853.stm" target="_blank"><img alt="temperature image" src="http://news.bbc.co.uk/nol/shared/spl/hi/sci_nat/09/climate_change_geo/img/temperat_mit_inf466.gif" title="" /></a><br />
<br />
More details: <a href="http://news.bbc.co.uk/2/hi/technology/8338853.stm">http://news.bbc.co.uk/2/hi/technology/8338853.stm</a></div>Dr.AKM. Nairhttp://www.blogger.com/profile/17757764190307503661noreply@blogger.com0