reference : Incorporating water table dynamics in climate modeling: 1. Water table observations and equilibrium water table simulations

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/reference/b09f74ca-82e1-4482-86d7-14d4222bc297
Bibliographic fields
reftype Journal Article
Abstract Soil moisture is a key participant in land-atmosphere interactions and an important determinant of terrestrial climate. In regions where the water table is shallow, soil moisture is coupled to the water table. This paper is the first of a two-part study to quantify this coupling and explore its implications in the context of climate modeling. We examine the observed water table depth in the lower 48 states of the United States in search of salient spatial and temporal features that are relevant to climate dynamics. As a means to interpolate and synthesize the scattered observations, we use a simple two-dimensional groundwater flow model to construct an equilibrium water table as a result of long-term climatic and geologic forcing. Model simulations suggest that the water table depth exhibits spatial organization at watershed, regional, and continental scales, which may have implications for the spatial organization of soil moisture at similar scales. The observations suggest that water table depth varies at diurnal, event, seasonal, and interannual scales, which may have implications for soil moisture memory at these scales.
Author Fan, Y. Miguez-Macho, G. Weaver, C.P. Walko, R. Robock, A.
DOI 10.1029/2006JD008111
ISSN 2156-2202
Issue D10
Journal Journal of Geophysical Research
Pages 17
Title Incorporating water table dynamics in climate modeling: 1. Water table observations and equilibrium water table simulations
URL http://onlinelibrary.wiley.com/doi/10.1029/2006JD008111/pdf
Volume 112
Year 2007
Bibliographic identifiers
.reference_type 0
_chapter ["Ch. 3: Water Resources FINAL"]
_record_number 943
_uuid b09f74ca-82e1-4482-86d7-14d4222bc297