第65回 ESCセミナー

Ensemble-based Data Assimilation with the Weather Research and Forecasting (WRF) Model---Studies for Improving Tropical Cyclone Forecasts

日時
2012年6月6日 (水) 15:30-16:30
場所
横浜研究所 シミュレータ研究棟1階 会議室
講演者
Prof. Takemasa Miyoshi (University of Maryland)
使用言語
日本語

Abstract

Data assimilation and predictability studies on Tropical Cyclones with a particular focus on intensity forecasts are performed with the newly-developed Local Ensemble Transform Kalman Filter (LETKF) system with the WRF model. Taking advantage of intensive observations of the internationally collaborated T-PARC (THORPEX Pacific Asian Regional Campaign) project, we focus on Typhoon Sinlaku (2008) which intensified rapidly before making landfall to Taiwan. This study includes a number of data assimilation experiments and sensitivity analysis which quantifies impacts of observations on forecasts. Recent achievements include higher-resolution data assimilation with two-way nested domains as well as improved forecasts due to including SST uncertainties in ensemble-based data assimilation.

問い合わせ先

地球シミュレータセンター
小守 信正
TEL: 045-778-5844
e-mail: komori