Electronic Resource
Palo Alto, Calif.
:
Annual Reviews
Annual Review of Earth and Planetary Sciences
30 (2002), S. 149-180
ISSN:
0084-6597
Source:
Annual Reviews Electronic Back Volume Collection 1932-2001ff
Topics:
Geosciences
,
Physics
Notes:
Abstract Soil moisture is spatially and temporally highly variable, and it influences a range of environmental processes in a nonlinear manner. This leads to scale effects that need to be understood for improved prediction of moisture dependent processes. We provide some introductory material on soil moisture, and then review results from the literature relevant to a variety of scaling techniques applicable to soil moisture. This review concentrates on spatial scaling with brief reference to results on temporal scaling. Scaling techniques are divided into behavioral techniques and process-based techniques. We discuss the statistical distribution of soil moisture, spatial correlation of soil moisture at scales from tens of meters to thousands of kilometers and related interpolation and regularization techniques, and the use of auxiliary variables such as terrain indices. Issues related to spatially distributed deterministic modeling of soil moisture are also briefly reviewed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1146/annurev.earth.30.091201.140434
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