Articles | Volume 23, issue 4
Hydrol. Earth Syst. Sci., 23, 1819–1832, 2019
https://doi.org/10.5194/hess-23-1819-2019
Hydrol. Earth Syst. Sci., 23, 1819–1832, 2019
https://doi.org/10.5194/hess-23-1819-2019

Research article 03 Apr 2019

Research article | 03 Apr 2019

Rain erosivity map for Germany derived from contiguous radar rain data

Karl Auerswald et al.

Data sets

17-yr precipitation erosivity (R factor) based on RADKLIM Version 2017.002 F. K. Fischer, T. Winterrath, T. Junghänel, E. Walawender, and K. Auerswald https://doi.org/10.5676/DWD/RADKLIM_Rfct_V2017.002

Annual (2001-2017) R factor based on hourly precipitation time series of RADKLIM version 2017.002 T. Winterrath https://doi.org/10.5676/DWD/RADKLIM_Rfct_V2017.002

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Short summary
Radar rain data enable for the first time portraying the erosivity pattern with high spatial and temporal resolution. This allowed quantification of erosivity in Germany with unprecedented detail. Compared to previous estimates, erosivity has strongly increased and its seasonal distribution has changed, presumably due to climate change. As a consequence, erosion for some crops is 4 times higher than previously estimated.