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@ARTICLE{Knist:866274,
author = {Knist, Sebastian and Goergen, Klaus and Simmer, Clemens},
title = {{E}ffects of land surface inhomogeneity on
convection-permitting {WRF} simulations over central
{E}urope},
journal = {Meteorology and atmospheric physics},
volume = {132},
issn = {1436-5065},
address = {Wien [u.a.]},
publisher = {Springer},
reportid = {FZJ-2019-05433},
pages = {53-69},
year = {2020},
abstract = {This sensitivity study investigates the impact of the
spatial scales of land use, soil moisture and orography
patterns on land–atmosphere exchange fluxes, domain-wide
averages and meteorologic conditions in
convection-permitting RCM simulations. We perform five WRF
RCM simulations, each with the same 3 km resolution
atmospheric setup but different combinations of coarsely
resolved (12 km) land use and soil type, initial soil
moisture and orography for the heat-wave summer 2003 over
central Europe. Our results indicate that a coarser-resolved
orography significantly alters the flow over and around
mountain ridges such as the Alps and impact the large-scale
flow pattern. The smoothed mountain ridges result in weaker
Föhn effects and in enhanced locally generated convective
precipitation patterns, peaking earlier in the afternoon. In
comparison, the impact of a coarser-resolved land use is
smaller and mainly related to changes in the overall spatial
fraction of a land use, rather than to the loss of
heterogeneity of the different land use types on the scale
analyzed here. Albeit, even small changes in the initial
soil moisture (both spatial averages and local differences)
have a higher potential to affect the overall simulation
results, although this might also depend on the land surface
model. Overall, effects induced by the coarsely resolved
land surface properties are small compared to the di},
cin = {IBG-3},
ddc = {550},
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:000511969900004},
doi = {10.1007/s00703-019-00671-y},
url = {https://juser.fz-juelich.de/record/866274},
}