10.5676/DWD/RADKLIM_Rfct_V2017.002 (radar-based precipitation erosivity)


Precipitation Erosivity (R factor) based on RADKLIM Version 2017.002 Gridded Precipitation Erosivity for Germany Fischer, Franziska K.; Winterrath, Tanja; Junghänel, Thomas; Walawender, Ewelina; Auerswald, Karl (2019): Mean annual precipitation erosivity (R factor) based on RADKLIM Version 2017.002,
DOI: 10.5676/DWD/RADKLIM_Rfct_V2017.002
Fischer, Franziska K.^1,2,3; Winterrath, Tanja⁴; Junghänel, Thomas⁴; Walawender, Ewelina⁴; Auerswald, Karl¹;
¹Lehrstuhl für Grünlandlehre, Technische Universität München, Freising, Germany
²Bayerische Landesanstalt für Landwirtschaft, Freising, Germany
³Deutscher Wetterdienst, Abteilung Agrarmeteorologie, Freising, Germany
⁴Deutscher Wetterdienst, Abteilung Hydrometeorologie, Offenbach, Germany

The product is based on RADKLIM data that has been produced within the project "Generation of a decadal radar-based high-resolution precipitation climatology for Germany for the retrieval of recent changes in precipitation extremes (Radar Climatology)" financed by the Strategic Agencies' Alliance "Adaptation to Climate Change" comprising the Federal Office of Civil Protection and Disaster Assistance (BBK), the Federal Institute for Research on Building, Urban Affairs and Spatial Development (BBSR), the Bundesanstalt Technisches Hilfswerk (THW), the Umweltbundesamt (UBA) and the Deutscher Wetterdienst (DWD).
The smoothed R factor map has been derived within the project "Ermittlung des Raum- und Jahreszeitmusters der Regenerosivität in Bayern aus radargestützten Niederschlagsdaten zur Verbesserung der Erosionsprognose mit der Allgemeinen Bodenabtragsgleichung" at the Bavarian State Research Center for Agriculture (PI Robert Brandhuber). It was funded by the Bayerisches Staatsministerium für Ernährung, Landwirtschaft und Forsten (A/15/17). Deutscher Wetterdienst (DWD, http://www.dwd.de/EN/Home/home_node.html) 2019 Precipitation erosivity (R factor) is calculated based on RADKLIM-RW data of version 2017.002. The precipitation sums (RW) result from the radar-based precipitation estimation that are adjusted with precipitation measurements by gauges. The data underwent a post-processing including several steps of temporal and spatial smoothing. The data gives the mean value of the time span of 2001 until 2017 and is available in DHDN/ Gauss-Kruger zone 3 (EPSG 31467) on a 1 km x 1 km grid in GeoTiff format and as Shapefile giving the mean values for German states, counties, and communities.
"Rain erosivity map for Germany derived from contiguous radar rain data"
Fischer, Franziska K.^1,2,3; Winterrath, Tanja⁴; Auerswald, Karl¹;
¹Lehrstuhl für Grünlandlehre, Technische Universität München, Freising, Germany
²Bayerische Landesanstalt für Landwirtschaft, Freising, Germany
³Deutscher Wetterdienst, Abteilung Agrarmeteorologie, Freising, Germany
⁴Deutscher Wetterdienst, Abteilung Hydrometeorolgie, Offenbach, Germany
in Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2018-504", in review, 2018.

"Erstellung einer radargestützten Niederschlagsklimatologie"
T. Winterrath¹, C. Brendel¹, M. Hafer¹, T. Junghänel¹, A. Klameth^1,2, E. Walawender¹, E. Weigl¹, A. Becker^1
1Deutscher Wetterdienst, Hydrometeorology Department, 63067 Offenbach/M., Germany
²Deutscher Wetterdienst, Department for Measurement Networks and Data, 63067 Offenbach/M., Germany
in Berichte des Deutschen Wetterdienstes Nr. 251, in German
This is Version 1 of the mean annual R factor based on the RADKLIM-RW product of Version 2017.002 2001/01 - 2017/12 Germany GeoTIFF and Shapefile
Information on the data files is given in
https://opendata.dwd.de/climate_environment/CDC/grids_germany/multi_annual/erosivity/precip_radklim/2017_002/README_R_FAKTOR_RADKLIM_v2017_002_postproc_RASTER.txt and
https://opendata.dwd.de/climate_environment/CDC/grids_germany/multi_annual/erosivity/precip_radklim/2017_002/README_R_FAKTOR_RADKLIM_v2017_002_postproc_SHAPEFILE.txt, respectively. approx. 3 MB (zipped GeoTIFF)and 20 MB (zipped Shapefile) Dr. Tanja Winterrath
Hydrometeorology Department
Deutscher Wetterdienst
Postfach 10 04 65
D-63004 Offenbach/Main
GERMANY
e-mail: hydromet@dwd.de

Tel.: + 49 (0)69 / 8062-2978
Fax: + 49 (0)69 / 8062-3987
(Phone calls are subject to a charge.) Product information (in german)
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Product	GeoTIFF	Shapefile
2001 - 2017 mean annual precipitation erosivity (R factor)	download	download