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Simulation of rain-bearing summer monsoon systems along the west coast of India by use of ARMEX re-analysis

Author

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  • M. Das Gupta
  • P. Pradhan
  • Someshwar Das
  • U. Mohanty

Abstract

Re-analysis, using surface, upper-air, and satellite observations specially collected during the Arabian Sea Monsoon Experiment-I (ARMEX-I), has been performed with a global data assimilation system at T-80/L18 resolution. Re-analysis was performed for the entire ARMEX-I period (15th June–16th August 2002). In this paper we discuss the results based on re-analysis and subsequent forecasts for two successive intensive observation periods associated with heavy rainfall along the west coast of India during 2–12 August, 2002. Results indicate that the re-analysed fields can bring out better synoptic features, for example troughs along the west coast and mid tropospheric circulation over the Arabian Sea. Simulated rainfall distribution using re-analysis as initial condition also matches observed rainfall better than data from the initial analysis. Copyright Springer Science+Business Media, Inc. 2007

Suggested Citation

  • M. Das Gupta & P. Pradhan & Someshwar Das & U. Mohanty, 2007. "Simulation of rain-bearing summer monsoon systems along the west coast of India by use of ARMEX re-analysis," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 42(2), pages 379-390, August.
    • Handle: RePEc:spr:nathaz:v:42:y:2007:i:2:p:379-390
    DOI: 10.1007/s11069-006-9083-0
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