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.

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Cited articles

Auerswald, K., Kainz, M., and Vogl, W.: Vergleich der Erosionsgefährdung durch Maisfruchtfolgen (C-Faktor), Bayerisches Landwirtschaftliches Jahrbuch, 63, 3–8, 1986. 
Auerswald, K., Fiener, P., and Dikau, R.: Rates of sheet and rill erosion in Germany – a meta-analysis, Geomorphology, 111, 182–193, https://doi.org/10.1016/j.geomorph.2009.04.018, 2009. 
Bartels, H., Weigl, E., Reich, T., Lang, P., Wagner, A., Kohler, O., and Gerlach, N.: Projekt RADOLAN: Routineverfahren zur Online-Aneichung der Radarniederschlagsdaten mit Hilfe von automatischen Bodenniederschlagsstationen (Ombrometer), Deutscher Wetterdienst, Hydrometeorologie, Offenbach/M., available at: http://www.laenderfinanzierungsprogramm.de/cms/WaBoAb_prod/WaBoAb/Vorhaben/LAWA/Vorhaben_des_ehemaligen_Ausschusses_Daten/DK_5.68/RADOLAN_Abschlussbericht_2006.pdf (last access: 12 December 2017), 2004. 
Bringi, V. N. and Chandrasekar, V.: Polarimetric Doppler Weather Radar: Principles and Applications, Cambridge Uni. Press, Cambridge, 2001. 
Burt, T., Boardman, J., Foster, I., and Howden, N.: More rain, less soil: Long-term changes in rainfall intensity with climate change, Earth Surf. Proc. Land., 41, 563–566, 2016. 
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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.