Seasonal and event dynamics of spatial soil moisture patterns at the small catchment scale
U Rosenbaum, HR Bogena, M Herbst, JA Huisman, TJ Peterson, A Weuthen, AW Western, H Vereecken
Water Resources Research | AMER GEOPHYSICAL UNION | Published : 2012
Our understanding of short- and long-term dynamics of spatial soil moisture patterns is limited due to measurement constraints. Using new highly detailed data, this research aims to examine seasonal and event-scale spatial soil moisture dynamics in the topsoil and subsoil of the small spruce-covered Ẅstebach catchment, Germany. To accomplish this, univariate and geo-statistical analyses were performed for a 1 year long 4-D data set obtained with the wireless sensor network SoilNet. We found large variations in spatial soil moisture patterns in the topsoil, mostly related to meteorological forcing. In the subsoil, temporal dynamics were diminished due to soil water redistribution processes an..View full abstract
We gratefully acknowledge the support by the SFB-TR32 "Pattern in Soil-Vegetation-Atmosphere Systems: Monitoring, Modeling and Data Assimilation" funded by the Deutsche Forschungsgemeinschaft (DFG) and TERENO (Terrestrial Environmental Observatories) funded by the Helmholtz-Gemeinschaft. We thank Meteo-media for providing meteorological data. We furthermore thank Ferdinand Engels, Rainer Harms, Nirca Gerl, and Michael Schraven for support during deployment of the network and Bernd Schilling for ongoing maintenance. The data used in this study are already freely available via the TERENO data portal TEODOOR (http://teodoor.icg.kfa-juelich.de/). Downloading all sensor network data for a long period of time is problematic because of the large amount of data. Therefore, the entire data set is also available from the authors upon request.