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@ARTICLE{Vernieuwe:19607,
author = {Vernieuwe, H. and De Baets, B. and Minet, J. and Pauwels,
V.R.N. and Lambot, S. and Vanclooster, M. and Verhoest,
N.E.C.},
title = {{I}ntegrating coarse-scale uncertain soil moisture data
into a fine-scale hydrological modelling scenario},
journal = {Hydrology and earth system sciences},
volume = {8},
issn = {1027-5606},
address = {Katlenburg-Lindau},
publisher = {EGU},
reportid = {PreJuSER-19607},
pages = {3101 - 3114},
year = {2011},
note = {This work has been performed in the framework of the
STEREO-project SR/00/100, financed by the Belgian Science
Policy and project G.0837.10 granted by the Research
Foundation Flanders. Computational resources and services
used in this work were provided by Ghent University.},
abstract = {In a hydrological modelling scenario, often the modeller is
confronted with external data, such as remotely-sensed soil
moisture observations, that become available to update the
model output. However, the scale triplet ( spacing, extent
and support) of these data is often inconsistent with that
of the model. Furthermore, the external data can be cursed
with epistemic uncertainty. Hence, a method is needed that
not only integrates the external data into the model, but
that also takes into account the difference in scale and the
uncertainty of the observations. In this paper, a synthetic
hydrological modelling scenario is set up in which a
high-resolution distributed hydrological model is run over
an agricultural field. At regular time steps, coarse-scale
field-averaged soil moisture data, described by means of
possibility distributions ( epistemic uncertainty), are
retrieved by synthetic aperture radar and assimilated into
the model. A method is presented that allows to integrate
the coarse-scale possibility distribution of soil moisture
content data with the fine-scale model-based soil moisture
data. The method is subdivided in two steps. The first step,
the disaggregation step, employs a scaling relationship
between field-averaged soil moisture content data and its
corresponding standard deviation. In the second step, the
soil moisture content values are updated using two
alternative methods.},
keywords = {J (WoSType)},
cin = {IBG-3},
ddc = {550},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Geosciences, Multidisciplinary / Water Resources},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000296745600007},
doi = {10.5194/hessd-8-6031-2011},
url = {https://juser.fz-juelich.de/record/19607},
}