Improving the representation of river-groundwater interactions in land surface modeling at the regional scale: Observational evidence and parameterization applied in the Community Land Model

Handle URI:
http://hdl.handle.net/10754/562076
Title:
Improving the representation of river-groundwater interactions in land surface modeling at the regional scale: Observational evidence and parameterization applied in the Community Land Model
Authors:
Zampieri, Matteo; Serpetzoglou, Efthymios; Anagnostou, Emmanouil N.; Nikolopoulos, Efthymios I.; Papadopoulos, Anastasios
Abstract:
Groundwater is an important component of the hydrological cycle, included in many land surface models to provide a lower boundary condition for soil moisture, which in turn plays a key role in the land-vegetation-atmosphere interactions and the ecosystem dynamics. In regional-scale climate applications land surface models (LSMs) are commonly coupled to atmospheric models to close the surface energy, mass and carbon balance. LSMs in these applications are used to resolve the momentum, heat, water and carbon vertical fluxes, accounting for the effect of vegetation, soil type and other surface parameters, while lack of adequate resolution prevents using them to resolve horizontal sub-grid processes. Specifically, LSMs resolve the large-scale runoff production associated with infiltration excess and sub-grid groundwater convergence, but they neglect the effect from loosing streams to groundwater. Through the analysis of observed data of soil moisture obtained from the Oklahoma Mesoscale Network stations and land surface temperature derived from MODIS we provide evidence that the regional scale soil moisture and surface temperature patterns are affected by the rivers. This is demonstrated on the basis of simulations from a land surface model (i.e., Community Land Model - CLM, version 3.5). We show that the model cannot reproduce the features of the observed soil moisture and temperature spatial patterns that are related to the underlying mechanism of reinfiltration of river water to groundwater. Therefore, we implement a simple parameterization of this process in CLM showing the ability to reproduce the soil moisture and surface temperature spatial variabilities that relate to the river distribution at regional scale. The CLM with this new parameterization is used to evaluate impacts of the improved representation of river-groundwater interactions on the simulated water cycle parameters and the surface energy budget at the regional scale. © 2011 Elsevier B.V.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Publisher:
Elsevier
Journal:
Journal of Hydrology
Issue Date:
Feb-2012
DOI:
10.1016/j.jhydrol.2011.11.041
Type:
Article
ISSN:
00221694
Sponsors:
This work was supported by an EU Marie Curie Excellence Grant (Project PreWEC, MEXT-CT-2006-038331). The authors would like to thank Viviana Maggioni for her help in preprocessing the observed data and Gonzalo Miguez Macho for his valuable comments and suggestions.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorZampieri, Matteoen
dc.contributor.authorSerpetzoglou, Efthymiosen
dc.contributor.authorAnagnostou, Emmanouil N.en
dc.contributor.authorNikolopoulos, Efthymios I.en
dc.contributor.authorPapadopoulos, Anastasiosen
dc.date.accessioned2015-08-03T09:44:15Zen
dc.date.available2015-08-03T09:44:15Zen
dc.date.issued2012-02en
dc.identifier.issn00221694en
dc.identifier.doi10.1016/j.jhydrol.2011.11.041en
dc.identifier.urihttp://hdl.handle.net/10754/562076en
dc.description.abstractGroundwater is an important component of the hydrological cycle, included in many land surface models to provide a lower boundary condition for soil moisture, which in turn plays a key role in the land-vegetation-atmosphere interactions and the ecosystem dynamics. In regional-scale climate applications land surface models (LSMs) are commonly coupled to atmospheric models to close the surface energy, mass and carbon balance. LSMs in these applications are used to resolve the momentum, heat, water and carbon vertical fluxes, accounting for the effect of vegetation, soil type and other surface parameters, while lack of adequate resolution prevents using them to resolve horizontal sub-grid processes. Specifically, LSMs resolve the large-scale runoff production associated with infiltration excess and sub-grid groundwater convergence, but they neglect the effect from loosing streams to groundwater. Through the analysis of observed data of soil moisture obtained from the Oklahoma Mesoscale Network stations and land surface temperature derived from MODIS we provide evidence that the regional scale soil moisture and surface temperature patterns are affected by the rivers. This is demonstrated on the basis of simulations from a land surface model (i.e., Community Land Model - CLM, version 3.5). We show that the model cannot reproduce the features of the observed soil moisture and temperature spatial patterns that are related to the underlying mechanism of reinfiltration of river water to groundwater. Therefore, we implement a simple parameterization of this process in CLM showing the ability to reproduce the soil moisture and surface temperature spatial variabilities that relate to the river distribution at regional scale. The CLM with this new parameterization is used to evaluate impacts of the improved representation of river-groundwater interactions on the simulated water cycle parameters and the surface energy budget at the regional scale. © 2011 Elsevier B.V.en
dc.description.sponsorshipThis work was supported by an EU Marie Curie Excellence Grant (Project PreWEC, MEXT-CT-2006-038331). The authors would like to thank Viviana Maggioni for her help in preprocessing the observed data and Gonzalo Miguez Macho for his valuable comments and suggestions.en
dc.publisherElsevieren
dc.subjectCommunity Land Modelen
dc.subjectGroundwateren
dc.subjectRegional hydrological modelen
dc.subjectRivers feedbacken
dc.subjectSoil moistureen
dc.subjectTOPMODELen
dc.titleImproving the representation of river-groundwater interactions in land surface modeling at the regional scale: Observational evidence and parameterization applied in the Community Land Modelen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of Hydrologyen
dc.contributor.institutionInstitute of Inland Waters, Hellenic Center for Marine Research, Anavissos, Greeceen
dc.contributor.institutionDepartment of Meteorology and Climatology, School of Geology, Aristotle University of Thessaloniki, Thessaloniki, Greeceen
dc.contributor.institutionUniversity of Connecticut, Storrs, United Statesen
kaust.authorZampieri, Matteoen
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