Articles | Volume 21, issue 2
Nat. Hazards Earth Syst. Sci., 21, 723–742, 2021
https://doi.org/10.5194/nhess-21-723-2021
Nat. Hazards Earth Syst. Sci., 21, 723–742, 2021
https://doi.org/10.5194/nhess-21-723-2021

Research article 23 Feb 2021

Research article | 23 Feb 2021

Typhoon rainstorm simulations with radar data assimilation on the southeast coast of China

Jiyang Tian et al.

Data sets

NCEP Final (FNL) Operational Global Analysis data NCAR https://rda.ucar.edu/datasets/ds083.2/

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Short summary
A typhoon always comes with heavy rainfall which leads to great loss. The aim of this study is to explore the reasonable use of Doppler radar data assimilation to correct the initial and lateral boundary conditions of the numerical weather prediction (NWP) systems for typhoon rainstorm forecasts at catchment scale. The results show that assimilating radial velocity at a time interval of 1 h can significantly improve the rainfall simulations and outperform the other assimilation modes.
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