5-7 October 2020
Online
Europe/Berlin timezone

Towards Rapid Update Cycling of Cloud and Precipitation Observations at DWD

6 Oct 2020, 14:25
20m
Online

Online

Speaker

Lisa Neef (Deutscher Wetterdienst)

Description

Prediction of severe precipitation events and flash floods happens at timescales of minutes to hours, which is also the intersection of nowcasting (NWC) and numerical weather prediction (NWP). At most centers, NWC and NWP have thus far comprised very separate systems, with not just different prediction methods but also different observation types used to constrain the predictions. One aim of DWD's SINFONY project is to bring NWC and NWP together by taking the data assimilation cycle of the NWP system from 3-hourly to 1-hourly updates, while also bringing in new observation types that contain information about clouds, precipitation, and convection. These observation types include radar, lightning, and cloud images, and are, at least in part, already used for nowcasting. This talk will discuss recent progress in making the assimilation and rapid update cycling of these observations a reality, identifying the particular difficulties of assimilating cloud- and precipitation-related observations while also outlining the possibilities that these new observation types present for better short-term weather prediction.

Primary author

Lisa Neef (Deutscher Wetterdienst)

Presentation Materials

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