Soil-vegetation-atmosphere transfer model for Prairie Grassland

Yuei An Liou, A. W. England

Research output: Contribution to conferencePaperpeer-review

Abstract

Soil-Vegetation-Atmosphere Transfer (SVAT) models provide the lower boundary forcing of Atmospheric Models (AMs). SVAT models are highly parameterized abstractions of energy, moisture, and momentum exchanges between the land and atmosphere. The quality of the SVAT model in capturing those exchanges greatly influences the effectiveness of the AM. We have developed a thermal model that includes moisture transfer in unsaturated soils. In this paper, we compare the predictions of the new model with those of our older annual model in which moisture was assumed to be fixed. We find that inclusion of moisture fluxes modifies the day-night temperature difference by as much as 11.0 K over a typical diurnal cycle in winter because of the dominant influence of moisture on soil properties.

Original languageEnglish
Pages757-759
Number of pages3
StatePublished - 1995
EventProceedings of the 1995 International Geoscience and Remote Sensing Symposium. Part 1 (of 3) - Firenze, Italy
Duration: 10 Jul 199514 Jul 1995

Conference

ConferenceProceedings of the 1995 International Geoscience and Remote Sensing Symposium. Part 1 (of 3)
CityFirenze, Italy
Period10/07/9514/07/95

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