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@ARTICLE{Ferguson:820889,
author = {Ferguson, Ian M. and Jefferson, Jennifer L. and Maxwell,
Reed M. and Kollet, Stefan},
title = {{E}ffects of root water uptake formulation on simulated
water and energy budgets at local and basin scales},
journal = {Environmental earth sciences},
volume = {75},
number = {4},
issn = {1866-6299},
address = {Berlin},
publisher = {Springer},
reportid = {FZJ-2016-06153},
pages = {316},
year = {2016},
abstract = {Roots connect water stored beneath the Earth’s surface to
water in the atmosphere. The fully integrated hydrologic
model ParFlow coupled to the Common Land Model is used to
investigate the influence of the root uptake formulation on
simulated water and energy fluxes and budgets at local and
watershed scales. The effects of four functional
representations of vegetation water stress and plant wilting
behavior are evaluated in the semi-arid Little Washita
watershed of the Southern Great Plains, USA. Monthly mean
latent and sensible heat fluxes differ by more than 25 W
m−2 over much of the study area during hot, dry summer
conditions. This difference indicates that the root uptake
formulation has a substantial impact on simulated land
energy fluxes and land–atmosphere interactions.
Differences in annual evapotranspiration and stream
discharge over the watershed exceed 14.5 and 55.5 $\%$
between simulations, respectively, demonstrating significant
impacts on simulated water budgets. Notably, the analysis
reveals that spatial variability in the sensitivity of
local-scale water and energy fluxes to root uptake
formulation is primarily driven by feedbacks between water
table dynamics, soil moisture, and land energy fluxes. These
results have important implications for model development,
calibration, and validation.},
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:000371393400038},
doi = {10.1007/s12665-015-5041-z},
url = {https://juser.fz-juelich.de/record/820889},
}