Open AccessSimulation of Severe Local Storm by Mesoscale Model MM5 and Validation Using Data from Different Platforms
Author(s) -
Prosenjit Chatterjee,
Utpal Kumar De,
Devendra Pradhan
Publication year - 2015
Publication title -
international journal of atmospheric sciences
Language(s) - English
Resource type - Journals
eISSN - 2314-4130
pISSN - 2314-4122
DOI - 10.1155/2015/198704
Subject(s) - mm5 , mesoscale meteorology , squall line , meteorology , environmental science , climatology , convective storm detection , storm , weather radar , radar , atmospheric sciences , geology , geography , computer science , telecommunications
During premonsoon season (March to May) convective developments in various forms are common phenomena over the Gangetic West Bengal, India. In the present work, simulation of wind squall on three different dates has been attempted with the help of mesoscale model MM5. The combination of various physical schemes in MM5 is taken as that found in a previous work done to simulate severe local storms over the Gangetic West Bengal. In the present study the model successfully simulates wind squall showing pressure rise, wind shift, wind surge, temperature drop, and heavy rainfall, in all cases. Convective cloud development and rainfall simulation by the model has been validated by the corresponding product from Doppler Weather Radar located at Kolkata and TRMM satellite product 3B42 (V6), respectively. It is found that the model is capable of capturing heavy rainfall pattern with up to three-hour time gap existing between simulation and observation of peak rainfall occurrence. In all simulations there is spatial as well as temporal shift from observation
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom