Tuesday, May 31, 2011

Unusual Cloud pattern observed by Satellite

Cloud Wake formation observed by MODIS
Cloud Wakes from Juan Fernandez Islands Look at the 'V' shaped cloud free region.....!
The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this natural-color image of the Juan Fernandez Islands on April 29.



It is an unusual pattern of wake formation in clouds..... 
2 small islands off Chile produced this big effects in the atmosphere.

It's all part of Fluid dynamics + atmospheric physics.

The islands create obstacles to wind thereby creating a giant V shape of cloud-free air. 

Detailed review can be read here:

Monday, May 30, 2011

CO2 emissions reach a record high in 2010

CO2 emissions reach a record high in 2010


Energy-related carbon-dioxide (CO2) emissions in 2010 were the highest in history, according to the latest estimates by the International Energy Agency


In terms of fuels, 44% of the estimated CO2 emissions in 2010 came from coal, 36% from oil, and 20% from natural gas.


more details:
http://www.iea.org/index_info.asp?id=1959
and
http://blogs.nature.com/news/2011/05/co2_emissions_climb_to_alltime.html



Thursday, May 26, 2011

3-D map of universe........


        Astronomers unveiled the most complete 3-D map of the local universe (out to a distance of 380 million light-years) ever created. Taking more than 10 years to complete, the 2MASS Redshift Survey (2MRS) also is notable for extending closer to the galactic plane than previous surveys -- a region that’s generally obscured by dust.

Credit: T.H. Jarrett (IPAC/SSC