SCIENCE - Scientists improve detection of Arctic clouds

(Phys.org) —Thin Arctic clouds can no longer hide, thanks to scientists at Pacific Northwest National Laboratory. Atmospheric data gathered by skyward pointing instruments can be "contaminated" by clouds so wispy that they appear to the instruments as tiny, suspended particles called aerosols, the desired target. The researchers showed how a simple modification of typical methods used to detect denser clouds and remove them from the data results ...

http://phys.org/news/2014-01-scientists-arctic-clouds.htm