KIT | KIT-Bibliothek | Impressum | Datenschutz

Lateral terrestrial water flow contribution to summer precipitation at continental scale – A comparison between Europe and West Africa with WRF‐Hydro‐tag ensembles

Arnault, Joël; Fersch, Benjamin ORCID iD icon 1; Rummler, Thomas; Zhang, Zhenyu 1; Quenum, Gandome Mayeul; Wei, Jianhui ORCID iD icon 1; Graf, Maximilian ORCID iD icon 1; Laux, Patrick ORCID iD icon 1; Kunstmann, Harald 1
1 Institut für Meteorologie und Klimaforschung (IMK), Karlsruher Institut für Technologie (KIT)

Abstract:

It is well accepted that summer precipitation can be altered by soil moisture condition. Coupled land surface – atmospheric models have been routinely used to quantify soil moisture – precipitation feedback processes. However, most of the land surface models (LSMs) assume a vertical soil water transport and neglect lateral terrestrial water flow at the surface and in the subsurface, which potentially reduces the realism of the simulated soil moisture – precipitation feedback. In this study, the contribution of lateral terrestrial water flow to summer precipitation is assessed in two different climatic regions, Europe and West Africa, for the period June–September 2008. A version of the coupled atmospheric-hydrological model WRF-Hydro with an option to tag and trace land surface evaporation in the modelled atmosphere, named WRF-Hydro-tag, is employed. An ensemble of 30 simulations with terrestrial routing and 30 simulations without terrestrial routing is generated with random realizations of turbulent energy with the stochastic kinetic energy backscatter scheme, for both Europe and West Africa. The ensemble size allows to extract random noise from continental-scale averaged modelled precipitation. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000132751
Veröffentlicht am 20.08.2021
Originalveröffentlichung
DOI: 10.1002/hyp.14183
Scopus
Zitationen: 18
Web of Science
Zitationen: 17
Dimensions
Zitationen: 19
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU)
Institut für Meteorologie und Klimaforschung (IMK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 0885-6087, 1099-1085
KITopen-ID: 1000132751
HGF-Programm 12.11.33 (POF IV, LK 01) Regional Climate and Hydrological Cycle
Erschienen in Hydrological processes
Verlag John Wiley and Sons
Band 35
Seiten Art.-Nr.: e14183
Vorab online veröffentlicht am 21.04.2021
Schlagwörter continental scale, coupled modelling, ensemble, feedback, summer precipitation, terrestrial hydrology
Nachgewiesen in Dimensions
Scopus
Web of Science
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page