Geoscience Reference
In-Depth Information
4. Conclusions
Mainly, the moderate to high vertical wind shear coupled with higher low level
convergence, low level relative vorticity, upper level divergence, northeastward
re-curving track, higher relative humidity in lower and middle tropospheric
levels and frictional convergence due to land interaction (desert land) helped
in heavy rainfall over Gujarat and Rajasthan states on 6
th
and 7
th
June 2010.
The performance of TRMM estimate varies from day to day and region to
region. The heavy rainfall (>65 mm) is always underestimated by TRMM
estimate for both Gujarat and Rajasthan states. However for moderate rain
(<30 mm) there is positive strong correlation over both the states
.
The correlation
between actual rainfall and TRMM estimates is higher over Rajasthan
(predominantly over desert land) than over Gujarat. It indicates dominant role
of land surface processes on occurrence of heavy rainfall in association with a
TC over the region.
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