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Showing posts with the label orography

Descending Cirrus clouds characteristics over Gadanki (Tirupati, Andhra Pradesh). Our research published

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Our long awaited publication exploring the Descending Cirrus clouds over Gadanki. Int'l. Journal of Remote Sensing It is the story of Cirrus clouds which descends / ascends altitude ..... their characteristic properties ....using NARL's long term Lidar data. Nellore Manoj Kumar, Kannan Venkatramanan, Anish Kumar M. Nair & Shekatam Satheesh Kumar   (2020)   On the characterization of descending nature of cirrus clouds over a tropical site, Gadanki,   International Journal of Remote Sensing,   41:17,   6550-6569,   DOI:  10.1080/01431161.2020.1742942 https://t.co/vpReYZZZsY https://t.co/3zJDq2KNjM https://www.tandfonline.com/doi/abs/10.1080/01431161.2020.1742942 The interesting feature of Cirrus cloud's descending & ascending are well characterized using ~6 years of lidar observations. The study roots back to the inspiration from my earlier work published in J.Geophysicsl Research in 2012 Nair,  A. K. M.   ,  K....

Our latest publication on "modelling Pool of inhibited cloudiness"

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Our collaborative research article Sensitivity of climate models in relation to the “pool of inhibited cloudiness” over South of the Bay of Bengal  is published in the International Journal of Climatology recently. [ click to view the paper ] / [ click here to download the paper ] It is on evaluation of CMIP5 models and suites of CFSv2 in capturing a region known as "Pool of inhibited cloudiness" [ click to view the base paper ] over the southwest Bay of Bengal region. This region was actually identified based on satellite observation by Nair et al. (2011)   However, the fidelity of climate models were not evaluated to capture this region of suppressed convection (surrounded by region of deep convection). Climate models (cmip5 and CFSv2 default) shows difficulties in simulating the region. However, improved cloud physics seem to have played an important role in capturing the complex process Present Paper: Roy, K., Mukhopadhyay, P., Mu...

Cloud feedback regulating the “pool of inhibited cloudiness”

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Our latest paper on the "Role of cloud feedback in regulating the “pool of inhibited cloudiness” over the Bay of Bengal" published in Springer Nature's  Meteorology and Atmospheric Physics . https://goo.gl/bNdLFg Read & Share Full Article here: http://rdcu.be/wOmz Anish Kumar M. Nair,  T. N. Rao and  K. Rajeev   Reference .bib   @Article{nair2017,   author   = {Nair, Anish Kumar M. and Rao, T. Narayana and Rajeev, K.},   title    = {Role of cloud feedback in regulating the “pool of inhibited cloudiness” over the Bay of Bengal},   journal  = {Meteorology and Atmospheric Physics},   year     = {2017},   pages    = {1--12},   month    = {10},   issn     = {0177-7971},   abstract = {Cloud-circulation feedback by latent heating (LH) is a major contributor for driving atmospheric circulation. This study exami...

Improved Topographic Map of Earth

NASA and Japan released a significantly improved version of the most complete digital topographic map of Earth. Data users can download the ASTER global digital elevation model at: https://lpdaac.usgs.gov / or http://www.ersdac.or.jp/GDEM/E/4.html . For more information about ASTER, visit: http://asterweb.jpl.nasa.gov/ . For more information on NASA's Terra mission, visit: http://www.nasa.gov/terra .

workings of tsunamis

New computer model better explains workings of tsunamis scientists have been working nearly blind in trying to understand how tsunamis work once they reach shore. Now, Frederic Dias from University College in Dublin and his team of mathematical and computer scientists have developed a computer simulation that they believe explains how tsunamis work once they reach shore. They have described their findings in Physical Review Letters. More information:  Local Run-Up Amplification by Resonant Wave Interactions, Phys. Rev. Lett.  107, 124502 (2011)  DOI:10.1103/PhysRevLett.107.124502 http://www.physorg.com/news/2011-09-tsunamis.html

CAP Cloud ! Have you seen it before ......?

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Have a look at these CAP clouds seen in France...!            Beautiful! Guess how they form....! Guess the wind direction ...! and then check this link for the correct answer and explanation....! http://epod.usra.edu/blog/2011/09/cap-cloud-over-mt-blanc-france.html