Sensitivity of surface fluxes to structural differences in soil moisture simulations

Cs Szinell, F. Ács

Research output: Contribution to journalArticle

Abstract

Two land-surface schemes, which differ only in the structure of the soil moisture prediction module, are compared. The first more complex model applies the Richards and heat diffusion equations for calculating soil moisture changes. The other, simpler model uses a diffusion type soil moisture module. All other components (atmospheric and vegetation parametrizations) are identical. In test runs the Cabauw data set was used. The resulting differences are studied in terms of both the annual mean and seasonal changes of energy and water fluxes. The preliminary results suggest that deviations imposed by structural differences in soil moisture prediction modules are not more significant than the deviations imposed by the differences in some relevant parametrizations. The results are useful to understand soil physical processes and to formulate soil moisture prediction modules.

Original languageEnglish
Pages (from-to)819-822
Number of pages4
JournalPhysics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere
Volume24
Issue number7
DOIs
Publication statusPublished - 1999

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surface flux
soil moisture
simulation
prediction
land surface
vegetation
energy
soil
water

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

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abstract = "Two land-surface schemes, which differ only in the structure of the soil moisture prediction module, are compared. The first more complex model applies the Richards and heat diffusion equations for calculating soil moisture changes. The other, simpler model uses a diffusion type soil moisture module. All other components (atmospheric and vegetation parametrizations) are identical. In test runs the Cabauw data set was used. The resulting differences are studied in terms of both the annual mean and seasonal changes of energy and water fluxes. The preliminary results suggest that deviations imposed by structural differences in soil moisture prediction modules are not more significant than the deviations imposed by the differences in some relevant parametrizations. The results are useful to understand soil physical processes and to formulate soil moisture prediction modules.",
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AU - Ács, F.

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AB - Two land-surface schemes, which differ only in the structure of the soil moisture prediction module, are compared. The first more complex model applies the Richards and heat diffusion equations for calculating soil moisture changes. The other, simpler model uses a diffusion type soil moisture module. All other components (atmospheric and vegetation parametrizations) are identical. In test runs the Cabauw data set was used. The resulting differences are studied in terms of both the annual mean and seasonal changes of energy and water fluxes. The preliminary results suggest that deviations imposed by structural differences in soil moisture prediction modules are not more significant than the deviations imposed by the differences in some relevant parametrizations. The results are useful to understand soil physical processes and to formulate soil moisture prediction modules.

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