Role of Sea Surface Temperature in Simulation of Arabian Sea Cyclone - Monitoring and Prediction of Tropical Cyclones in the Indian Ocean and Climate Change - page 340

Fig. 4: The wind magnitude (in m/s) and vector at 200 hPa pressure level obtained
from model simulations of (a) control, (d) same SST, and (g) Inserted SST grad for
day-1; (b), (e) and (h) are same as (a), (d) and (g) but for day-3; and (c), (f) and (i) are
same as (a), (d) and (g) but for day-5.
SST gradient region which is southeast from the eye location. This is probably
one major reason to have lesser intensity of the storm in Inserted SST grad
experiment during day-3. On day-5, the higher LHF is found close to coast and
also at near the same location where the storm exists. Interestingly, no high
LHF (more than 200 W/m 2 ) is found in the same SST experiment during the
whole period of model integration. Therefore, it is found from the experiments
that SST gradient plays an important role in the genesis and intensification of
the tropical cyclone.
The track of the cyclone obtained from Joint Typhoon Warning Centre
(JTWC) and model simulations of Control, Inserted SST grad and SSHA2SST
experiments are shown in Fig. 6. The track of the cyclone is shown in 12
hourly interval starting from 12 UTC of 5th May 2002 for model simulated
results and 00 UTC of 6th May for JTWC to 00 UTC of 11th May of 2002.
Since the model simulation has started from 12 UTC of 5th May, the track for