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Contribution of lateral terrestrial water flow to the hydrological cycle atregional scale: A joint soil-atmospheric moisture tagging procedure with WRF-Hydro

Arnault, Joel; Wei, Jianhui; Rummler, Thomas; Fersch, Benjamin; Zhang, Zhenyu; Jung, Gerlinde; Wagner, Sven; Kunstmann, Harald

Abstract:
Water resources management requires an accurate knowledge of the behavior of the regional hydrological cyclecomponents, including precipitation, evapotranspiration, river discharge and soil water storage. Atmospheric mod-els such as the Weather Research and Forecasting (WRF) model provide a tool to evaluate these components.Recent model developments have focused on coupled atmospheric-hydrological modeling systems, such as WRF-Hydro, in order to account for subsurface, overland and river flow and potentially improve the representation ofland-atmosphere interactions. The aim of this study is to investigate the contribution of lateral terrestrial waterflow to the regional hydrological cycle, with the help of a joint soil-atmospheric moisture tagging procedure newlydeveloped in the so-called WRF-tag and WRF-Hydro-tag models. An application of both models for the highprecipitation event on 15 August 2008 in the German and Austrian parts of the Danube river basin (94,100 km2)is presented. The precipitation having fallen in the basin during this event is considered as a moisture source, istagged and tracked for a 40 month-period until December 2011. ... mehr



Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Vortrag
Publikationsdatum 11.04.2019
Sprache Englisch
Identifikator KITopen-ID: 1000129003
Veranstaltung EGU General Assembly (2019), Wien, Österreich, 07.04.2019 – 12.04.2019
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