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000845967 1001_ $$0P:(DE-Juel1)169794$$aNaz, Bibi$$b0$$eCorresponding author$$ufzj
000845967 1112_ $$aEGU General Assembly 2018$$cVienna$$d2018-04-08 - 2018-04-13$$wAustria
000845967 245__ $$aAssimilation of remotely sensed soil moisture into the Community Land Model for improving hydrologic predictions over Europe
000845967 260__ $$c2018
000845967 3367_ $$033$$2EndNote$$aConference Paper
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000845967 520__ $$aAccurate and reliable hydrologic simulations are important for many applications, such as water resources management, future water availability projections and predictions of extreme events. However, the accuracy of waterbalance estimates is limited by the lack of observations at large scales and the uncertainties of model simulations due to errors in model structure and inputs (e.g. hydrologic parameters and atmospheric forcings). In this study, weused a joint model parameter calibration and data assimilation approach to improve continental-scale hydrologic estimates of soil moisture, surface runoff, discharge and total water storage. The assimilation experiment was conductedover a time period from 2000 – 2014 with the Community Land Model, version 3.5 (CLM3.5) integrated with the Parallel Data Assimilation Framework (PDAF) in the Terrestrial System Modeling Platform (TerrSysMPPDAF)at a spatial resolution of approximately 3km over Europe. The model was forced with the high-resolution reanalysis COSMO-REA6 from Hans-Ertel Centre for Weather Research (HErZ). Using this modeling framework,the coarse-resolution remotely sensed ESA CCI soil moisture (SM) daily data were first downscaled to the model resolution and then assimilated into TerrSysMP-PDAF. The impact of remotely sensed soil moisture data on improvingcontinental-scale hydrologic estimates was analyzed through comparisons with independent observationsincluding ESA CCI-SM, E-RUN runoff, GRDC river discharge and total water storage from GRACE satellite.Cross-validation with independent CCI-SM observations show that estimates of soil moisture improved, particularlyin the summer and autumn seasons. The assimilation experiment also showed overall improvements in runoffparticularly during peak runoff. The results demonstrate the potential of assimilating satellite soil moisture observationsto improve high-resolution hydrologic model simulations at the continental scale, which is useful for waterresources assessment and monitoring.
000845967 536__ $$0G:(DE-HGF)POF3-255$$a255 - Terrestrial Systems: From Observation to Prediction (POF3-255)$$cPOF3-255$$fPOF III$$x0
000845967 536__ $$0G:(EU-Grant)676629$$aEoCoE - Energy oriented Centre of Excellence for computer applications (676629)$$c676629$$fH2020-EINFRA-2015-1$$x1
000845967 7001_ $$0P:(DE-Juel1)140349$$aKurtz, Wolfgang$$b1
000845967 7001_ $$0P:(DE-HGF)0$$aSpringer, Anne$$b2
000845967 7001_ $$0P:(DE-Juel1)151405$$aKollet, Stefan$$b3$$ufzj
000845967 7001_ $$0P:(DE-Juel1)138662$$aHendricks-Franssen, Harrie-Jan$$b4$$ufzj
000845967 7001_ $$0P:(DE-Juel1)129506$$aMontzka, Carsten$$b5$$ufzj
000845967 7001_ $$0P:(DE-Juel1)168536$$aSharples, Wendy$$b6$$ufzj
000845967 7001_ $$0P:(DE-Juel1)156253$$aGörgen, Klaus$$b7$$ufzj
000845967 7001_ $$0P:(DE-HGF)0$$aKeune, Jessica$$b8
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