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Nowcasting of rainfall in the Tropics – An End-to-End Approach Scrutinising the Radar Data Processing Chain

  • 1 March, 2020
  • Wageningen University, Hydrology and Quantitative Water Management
  • prof. dr ir R Uijlenhoet
  • dr ir H Leijnse

The tropical climate of Singapore results in year-round convective thunderstorms that are typically localized in nature and are often characterized with rapid growth and decay, weak environmental winds as well as back-building. As a result, traditional nowcasting methods are inadequate for most thunderstorm events. Thus, this study will aim to develop a 0 – 6 hour radar- and NWP-based nowcasting system adjusted for use in the tropics, through a conscientious effort to scrutinise each step in the weather radar data processing chain. The steps can be broadly summarised as: (i) Ensuring high quality data through data acquisition and quality control methods; (ii) deploying the latest techniques in radar data processing and compositing; (iii) evaluating precipitation estimation and rain gauge adjustment techniques; (iv) combining radar- and NWP-based nowcasts.

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Erik Becker

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