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Regional atmospheric reanalysis activities at Deutscher Wetterdienst: review of evaluation results and application examples with a focus on renewable energy

Based on the numer­i­cal weath­er pre­dic­tion mod­el COSMO of Ger­many’s nation­al mete­o­ro­log­i­cal ser­vice (Deutsch­er Wet­ter­di­enst, DWD), region­al reanaly­sis datasets have been devel­oped with grid spac­ing of up to 2 km. This devel­op­ment start­ed as a fun­da­men­tal research activ­i­ty with­in the Hans-Ertel-Cen­tre for Weath­er Research (HErZ) at the Uni­ver­si­ty of Bonn and the Uni­ver­si­ty of Cologne. Today, COSMO reanaly­ses are an estab­lished prod­uct of the DWD and have been wide­ly used in appli­ca­tions on Euro­pean and nation­al Ger­man lev­el. Suc­cess­ful appli­ca­tions of COSMO reanaly­ses include renew­able ener­gy assess­ments as well as mete­o­ro­log­i­cal risk esti­mates. The COSMO reanaly­sis datasets are now pub­licly avail­able and pro­vide spa­tio-tem­po­ral con­sis­tent data of atmos­pher­ic para­me­ters cov­er­ing both near-sur­face con­di­tions and ver­ti­cal pro­files. This arti­cle reviews the sta­tus of the COSMO reanaly­ses, includ­ing eval­u­a­tion results and appli­ca­tions. In many stud­ies, eval­u­a­tion of the COSMO reanaly­ses point to an over­all good qual­i­ty and often an added val­ue com­pared to dif­fer­ent con­tem­po­rary glob­al reanaly­sis datasets. We fur­ther out­line cur­rent plans for the fur­ther devel­op­ment and appli­ca­tion of region­al reanaly­ses in the HErZ research group Cologne/Bonn in col­lab­o­ra­tion with the DWD.

Frank Kas­par, Deb­o­rah Nier­mann, Michael Borsche, Stephanie Fiedler, Jan Keller, Roland Pot­thast, Thomas Rösch, Thomas Spangehl, and Birg­er Tinz (2020) in Advances in Sci­ence and Research, 17, 115–128, 2020

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