Sunday, August 15, 2010
Reproduced from Kaneyen's post. Very interesting, so must share.
"I attended a lecture given by one of the eminent environmental enthusiasts in Tirunelveli. He is of the view that warming in the upper atmosphere especially between 850 to 700 hPa is responsible for relatively lesser rainfall in the Wyanad, interior parts of Karnataka including Bengaluru. The usual monsoon trough or depression are NOT forming at sea level in Bay of Bengal.
Leh the elevation of which is 11500ft [approximately 3.5km]receives usually lesser rainfall. A small portion of moist warmed upper air orographic-ally rose and burst into sudden rain over a small area. The intensity of rainfall is such that it triggers immediately mud slides.
[As happened in Ketty, Nilgiri district in Tamilnadu during NEM 2009, when 82 cms fell in a day]
This can not be tied to global warming effects, but it is warming of upper air.
The volcanic eruption in Iceland during this Summer 2010 and the tectonic sub surface ocean floor was warmer due to vent in the floor and made Artic ocean warmer. This leads the ice in the Artic melt. The ocean is the culprit. Not the atmosphere".
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