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Climate variability effects on spatial soil moisture dynamics

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Teuling, A.J. Hupet, François [UCL] Uijlenhoet, R. Troch, P.

We investigate the role of interannual climate variability on spatial soil moisture variability dynamics for a field site in Louvain-la-Neuve, Belgium. Observations were made during 3 years under intermediate ( 1999), wet ( 2000), and extremely dry conditions ( 2003). Soil moisture variability dynamics are simulated with a comprehensive model for the period 1989 - 2003. The results show that climate variability induces non-uniqueness and two distinct hysteresis modes in the yearly relation between the spatial mean soil moisture and its variability. We demonstrate that the direction of hysteresis is related to a yearly climate index that does not require soil moisture observations.

Document type Article de périodique (Journal article) – Article de recherche
Publication date 2007
Language Anglais
Journal information "Geophysical Research Letters" - Vol. 34, no. 6, p. L06406 (24.03.2007)
Peer reviewed yes
Publisher American Geophysical Union ((United States) Washington)
issn 0094-8276
e-issn 1944-8007
Publication status Publié
Affiliations UCL - AGRO/MILA - Département des sciences du milieu et de l'aménagement du territoire
UCL - SST/ELI/ELIE - Environmental Sciences
Keywords Soil moisture dynamics ; Evapotranspiration
Links
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Bibliographic reference Teuling, A.J. ; Hupet, François ; Uijlenhoet, R. ; Troch, P.. Climate variability effects on spatial soil moisture dynamics. In: Geophysical Research Letters, Vol. 34, no. 6, p. L06406 (24.03.2007)
Permanent URL http://hdl.handle.net/2078.1/87333