Surface temperature assimilation in land surface models

Author

Lakshmi, Venkataraman

Author_Institution

NASA Goddard Space Flight Center, Greenbelt, MD, USA

Volume

4

fYear

1999

fDate

1999

Firstpage

2155

Abstract

This paper examines the utilization of surface temperature as a variable to be assimilated in offline land surface hydrological models. Comparisons between the model computed and satellite observed surface temperatures have been carried out. The assimilation of surface temperature is carried out twice a day (corresponding to the AM and PM overpass of the NOAA10) over the Red-Arkansas basin in the southwestern United States (31°50´N-36°N, 94°3´/W-104°30´W) for a period of one year (August 1987 to July 1988). The effect of assimilation is to reduce the difference between the surface soil moisture computed for the precipitation and/or shortwave radiation perturbed case and the unperturbed case compared to no assimilation

Keywords

evaporation; hydrology; soil; Red-Arkansas basin; United States; evaporation; hydrological model; hydrology; land surface; land surface model; precipitation; soil moisture; surface temperature assimilation; Atmospheric modeling; Hydrology; Land surface; Land surface temperature; NASA; Predictive models; Satellite broadcasting; Soil moisture; Surface soil; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International

Conference_Location

Hamburg

Print_ISBN

0-7803-5207-6

Type

conf

DOI

10.1109/IGARSS.1999.775061

Filename

775061