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 339

Fig. 3: The wind magnitude (in m/s) and vector at 850 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; (c), (f) and (i) are same
as (a), (d) and (g) but for day-5.
It is of interest to examine the latent heat flux (LHF) near the surface
obtained from different model simulations. The LHF obtained from the Control,
same SST and Inserted SST grad for day-1, day-3 and day-5 is shown in Fig. 5.
On day-1, higher LHF is seen over larger area to the south of the vortex in
Control experiment. The higher LHF in Inserted SST grad is confined over
those regions where strong SST gradient has been incorporated. Almost all the
parts of the Arabian Sea, the LHF is lesser in both same SST and Inserted SST
grad than the Control experiment. On day-3, the pattern of LHF in Control
experiment shows that the location of higher LHF is same as the cyclone-eye
location, while the location of higher LHF in Inserted SST grad is same as
day-1 location. Therefore, the eye of the cyclonic storm in the Control
experiment gets its driving energy immediately from its bottom level, while in
the Inserted SST grad experiment, the storm gets its driving energy from the