理化学研究所 計算科学研究センター

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第175回 第2部

第175回 第2部
日時: 2019年7月22日(月)、16:10 - 16:50
場所: R-CCS 6階講堂

・講演題目: The Assimilation of Dual Phased Array Weather Radar Observations to Short-range Convective Forecasts
・講演者: James Taylor (データ同化研究チーム 特別研究員)
※発表・スライド共に英語

講演要旨: 詳細を見る

The assimilation of Doppler radial velocity and reflectivity observations from phased array weather radar (PAWR) have been widely studied for the use of short-range numerical weather prediction (NWP) and have shown to have positive impact to analyses and forecasts of convective weather systems (e.g. Maejima 2017). However, these studies only assimilated observations from a single PAWR and the use of multiple PAWR observations for NWP has not yet been explored. In this talk we present an overview into the assimilation of PAWR observations within the SCALE-LETKF modelling system (Lien et al 2017), including research into dual PAWR assimilation and the development of a new quality control method that aids the removal of false echoes from radar datasets. This talk will also introduce research currently being undertaken for a proposed Precipitation Radar onboard a satellite in geostationary orbit that could in future provide continuous global observation of the three-dimensional precipitation structure.