Prediction of monsoon rainfall with a nested grid mesoscale limited area model

Journal of Earth system science

S K Roy Bhowmik1¹ 

[1] India Meteorological Department, Lodi Road, New Delhi 110 003, India$$

关键词: Limited area model;    meso-scale convective system;    monsoon depression;    orographic rainfall;    monsoon rainfall.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

At the India Meteorological Department (IMD), New Delhi, a 12-level limited area model with 100km horizontal resolution has been in use for weather forecasting. The present study uses this model together with a higher horizontal resolution (50 km) and vertical resolution (16-levels) model to examine the impact of increased resolution to simulate mesoscale features of rainfall during monsoon disturbances. The model was run for 22 days in the month of August 1997 and one week in September 1997 during three monsoon depressions and one cyclonic storm in the Bay of Bengal. The model results are compared with observations. The study shows that the model can capture mesoscale convective organization associated with monsoon depression.

【 授权许可】

Unknown