Current Challenges and Future Directions in Data Assimilation and Reanalysis

Abstract

Symposium on Data Assimilation and Reanalysis took place on 13-17 September 2021, and it was organized in conjunction with the ECMWF Annual Seminar on Observations. The last WCRP-WWRP-organized meetings were held separately for data assimilation and reanalysis in 2017 Since then, common challenges and new emerging topics have increased the need to bring these communities together to exchange new ideas and findings. Thus, a symposium involving the aforementioned communities was jointly organized by the German Meteorological Service (DWD), Hans-Ertel-Centre for Weather Research (HErZ), WCRP, WWRP, and the ECMWF Annual Seminar. Major goals were to increase diversity, provide early career scientists with opportunities to present their work and extend their professional network, and bridge gaps between the various communities.