Tibetan
plateau has considerable importance with regard to monsoon in Asia. This along
with its repeated presence in news makes it a hot topic. In the past few years
there have been many research findings regarding – the elevation change in Tibetan
plateau, role on Indian monsoon, the change in the glaciers of Tibetan plateau
etc.
How Tibetan plateau affects monsoon?
The Tibetan
plateau is a vast structure extending long and wide. The heating or cooling of
such a large geophysical structure leads to change in the jet streams during
summer and winter. The change is the jet streams are due to 1) tilt of the
earth changing with season 2) uplift of air from the Tibetan plateau. These changes
in the jet stream in winter and summer results in change in wind over the
peninsular region. As you would know when wind flow from the equatorial region
to the subcontinent, then rainfall will occur. The rate of heating, duration of
heating of Tibetan plateau has considerable influence on Monsoon.
The role of
the Tibetan plateau has been given in Savindra Singh’s Geography book .In case
you have a friend with geo optional, just have a glance over it.
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| source:novascience.wordpress.com |
The above psychedelic diagrams shows the flow of jet streams in winter. The lower arm disappears in summer. This results in monsoon flow.
Why important?
We have
been trying to predict the Indian monsoon correctly for years. One of the
parameters (among several others) is the Tibetan plateau. So unless we clearly
get a knowhow of this parameter, it is difficult to make accurate predictions.
News
regarding Tibetan plateau
News one (must read)
News two (optional reading )
News three (optional reading)
1 comment:
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