• Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/jess/125/04/0709-0723

    • Keywords

       

      QPE; QPF; rainfall; flood; MME; Phailin

    • Abstract

       

      In order to issue an accurate warning for flood, a better or appropriate quantitative forecasting of precipitationis required. In view of this, the present study intends to validate the quantitative precipitationforecast (QPF) issued during southwest monsoon season for six river catchments (basin) under theflood meteorological office, Patna region. The forecast is analysed statistically by computing various skillscores of six different precipitation ranges during the years 2011–2014. The analysis of QPF validationindicates that the multi-model ensemble (MME) based forecasting is more reliable in the precipitationranges of 1–10 and 11–25 mm. However, the reliability decreases for higher ranges of rainfall and also forthe lowest range, i.e., below 1 mm. In order to testify synoptic analogue method based MME forecastingfor QPF during an extreme weather event, a case study of tropical cyclone Phailin is performed. It isrealized that in case of extreme events like cyclonic storms, the MME forecasting is qualitatively usefulfor issue of warning for the occurrence of floods, though it may not be reliable for the QPF. However,QPF may be improved using satellite and radar products.

    • Author Affiliations

       

      R K Giri1 Jagabandhu Panda2 Sudhansu S Rath2 Ravindra Kumar1

      1. Regional Meteorological Centre Patna, Bihar, India.
      2. Department of Earth and Atmospheric Sciences, National Institute of Technology Rourkela, Odisha, India.
    • Dates

       
  • Journal of Earth System Science | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.