Characteristics of air flow over Andaman islands including precipitation |
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| Authors: | Sarat C Kar N Ramanathan |
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| Institution: | (1) Centre for Atmospheric Sciences, Indian Institute of Technology, 110016 New Delhi, India |
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| Abstract: | The characteristics of simulated air flow over Andaman Islands are studied with a two-dimensional version of the University
of Virginia meso scale model (UVMM). Using the observed synoptic data as initial conditions, 24 hr simulations are obtained
for a day each in April and November. These days are chosen to study the variations in the simulated flow pattern under different
synoptic conditions including precipitation effects. A large scale condensation scheme is employed to consider the effect
of latent heat release on the perturbations. The results show that the latent heat released by condensation strengthens the
intensity of perturbations and the topography accelerates the arrival of sea breeze by about an hour. The model-simulated
results, given in graphical form, are discussed and compared with available observations. |
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| Keywords: | Meso scale island circulations sea/land breeze studies numerical simulation weather forecast |
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