Natural Hazards

, Volume 63, Issue 3, pp 1361–1374 | Cite as

Prediction of severe tropical cyclones over the Bay of Bengal during 2007–2010 using high-resolution mesoscale model

Original Paper

Abstract

In this paper, the performance of a high-resolution mesoscale model for the prediction of severe tropical cyclones over the Bay of Bengal during 2007–2010 (Sidr, Nargis, Aila, and Laila) is discussed. The advanced Weather Research Forecast (WRF) modeling system (ARW core) is used with a combination of Yonsei University PBL schemes, Kain-Fritsch cumulus parameterization, and Ferrier cloud microphysics schemes for the simulations. The initial and boundary conditions for the simulations are derived from global operational analysis and forecast products of the National Center for Environmental Prediction-Global Forecast System (NCEP-GFS) available at 1°lon/lat resolution. The simulation results of the extreme weather parameters such as heavy rainfall, strong wind and track of those four severe cyclones, are critically evaluated and discussed by comparing with the Joint Typhoon Warning Center (JTWC) estimated values. The simulations of the cyclones reveal that the cyclone track, intensity, and time of landfall are reasonably well simulated by the model. The mean track error at the time of landfall of the cyclone is 98 km, in which the minimum error was found to be for the cyclone Nargis (22 km) and maximum error for the cyclone Laila (304 km). The landfall time of all the cyclones is also fairly simulated by the model. The distribution and intensity of rainfall are well simulated by the model as well and were comparable with the TRMM estimates.

Keywords

Tropical cyclone Track Intensity Vector displacement error Model simulations 

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • P. V. S. Raju
    • 1
  • Jayaraman Potty
    • 1
  • U. C. Mohanty
    • 2
  1. 1.Regional Integrated Multi-hazard Early Warning System (RIMES), Asian Institute of Technology CampusKlong Luang, PathumthaniThailand
  2. 2.Centre for Atmospheric SciencesIndian Institute of Technology, DelhiNew DelhiIndia

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