Mesoscale simulation of an extreme rainfall event over Mumbai, India, using a high-resolution MM5 model
✍ Scribed by A. J. Litta; B. Chakrapani; K. Mohankumar
- Book ID
- 102947195
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 896 KB
- Volume
- 14
- Category
- Article
- ISSN
- 1350-4827
- DOI
- 10.1002/met.31
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Mesoscale models are essential for the accurate prediction of high‐impact weather, such as severe thunderstorms, heavy rainfall events, mountain weather forecasting, cloudbursts and cyclones. An attempt has been made in the present study to simulate the heavy rainfall event that occurred during 26 July 2005 over Santa Cruz (19.20°N, 72.53°E) in Mumbai, India, using the Fifth‐Generation NCAR/Penn State Mesoscale Model (MM5). The cloud‐resolving mesoscale model with the right combination of the nesting domains, horizontal resolution and cloud parameterization schemes, is able to simulate the heavy rainfall event both qualitatively and quantitatively. The model results indicate the existence of an intense mesoscale vortex in the mid‐troposphere during this heavy rainfall event. The localized heavy rainfall which occurred over Santa Cruz may possibly be due to the subsidence of the mid‐tropospheric mesoscale vortex, superimposed on the active monsoon conditions over this region. Copyright © 2007 Royal Meteorological Society