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@ARTICLE{Kreklow:887689,
author = {Kreklow, Jennifer and Steinhoff-Knopp, Bastian and
Friedrich, Klaus and Tetzlaff, Björn},
title = {{C}omparing {R}ainfall {E}rosivity {E}stimation {M}ethods
{U}sing {W}eather {R}adar {D}ata for the {S}tate of {H}esse
({G}ermany)},
journal = {Water},
volume = {12},
number = {5},
issn = {2073-4441},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2020-04350},
pages = {1424 -},
year = {2020},
abstract = {Rainfall erosivity exhibits a high spatiotemporal
variability. Rain gauges are not capable of detecting
small-scale erosive rainfall events comprehensively.
Nonetheless, many operational instruments for assessing soil
erosion risk, such as the erosion atlas used in the state of
Hesse in Germany, are still based on spatially interpolated
rain gauge data and regression equations derived in the
1980s to estimate rainfall erosivity. Radar-based
quantitative precipitation estimates with high
spatiotemporal resolution are capable of mapping erosive
rainfall comprehensively. In this study, radar climatology
data with a spatiotemporal resolution of 1 km2 and 5 min are
used alongside rain gauge data to compare erosivity
estimation methods used in erosion control practice. The aim
is to assess the impacts of methodology, climate change and
input data resolution, quality and spatial extent on the
R-factor of the Universal Soil Loss Equation (USLE). Our
results clearly show that R-factors have increased
significantly due to climate change and that current
R-factor maps need to be updated by using more recent and
spatially distributed rainfall data. Radar climatology data
show a high potential to improve rainfall erosivity
estimations, but uncertainties regarding data quality and a
need for further research on data correction approaches are
becoming evident.},
cin = {IBG-3},
ddc = {690},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {255 - Terrestrial Systems: From Observation to Prediction
(POF3-255)},
pid = {G:(DE-HGF)POF3-255},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000555915200203},
doi = {10.3390/w12051424},
url = {https://juser.fz-juelich.de/record/887689},
}