COSMO Regional Reanalysis

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Download COSMO-REA6 Data

The reanalysis data of COSMO-REA6, COSMO-REA2 and COSMO-ENS-REA12 may be used without any restrictions, provided that the source is indicated as stated in the Terms of Use (German, courtesy translation to English). Please note, that only the German document "Terms of Use" shall be legally binding.

The full model output comprises a set of 150 variables (2D and 3D fields). A full list of variables will soon be provided.

As of May 2021 a subset of often requested parameters is available for direct download from the opendata-FTP server at DWD (

Data is available in hourly, daily or monthly aggregation.

Below a list of some of the 2D parameters available in hourly time steps:

Variable Description Level/Type Period Remarks
CLCT total cloud cover column  1995-2019   
PS  surface pressure  surface 1995-2019   
RELHUM_2M relative humidity in 2m 2m 1995-2019   
SWDIFDS_RAD  instantaneous direct radiation  surface  1995-2019   
SWDIRS_RAD  instantaneous diffuse radiation surface  1995-2019   
TOT_PREC  total precipitation  surface  1995-2019   
TQV  total column water vapor content column  1995-2019   
T_2M  temperature in 2m  2m  1995-2019   
U_10M  wind velocity at 10 m, u direction   10m  1995-2019   
V_10M  wind velocity at 10 m, v direction  10m 1995-2019   
VMAX wind gusts at 10m 10m 1995-2019   

Below a list of the 3D parameters in hourly data (6 lowest model levels, approx. 20m to 250m above ground):

Variable Description Level/Type Period
water vapor content model levels (6 lowest)  1995-2019
temperature model levels (6 lowest)  1995-2019
TKE turbulent kinetic energy model levels (6 lowest) 1995-2019
wind velocity u direction model levels (6 lowest)  1995-2019
wind velocity v direction model levels (6 lowest)  1995-2019

Requests for further data or questions regarding the reanalysis should be send to

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