第175回 第2部

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.