Validation of the SEBS model

Defa Mao*, Shaomin Liu, Jiemin Wang, Z. Su, Shiqi Yang, Xuehong Zhang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

The SEBS model (The Surface Energy Balance System) based on land surface energy balance equation is used to estimate sensible heat flux and latent heat flux using remotely sensed data. In this paper, The SEBS model is validated with two sets of data collected in two field experiment on winter-wheat field in Shunyi county of Beijing (116° 26′ E-117° E; 40° N-40° 21′ N)and on bare soil in Changping county of Beijing (116° 26′ E 116° 28′ E; 40° 10′ N-40° 12′ N),China.Sensible and latent heat flux measured by eddy correlation method are compared with these SEBS estimates. The results show:(1) Diurnal variant of Sensible and latent heat flux estimated by SEBS basically agreed with the measured by eddy correlation method both on winter-wheat field and on bare soil, but the performance on winter-wheat field is better than on bare soil, the performance of sensible flux is better than that of latent flux. (2) Both on winter-wheat field and on bare soil, the precision of sensible heat flux estimated by SEBS is higher than that of latent heat flux, while the SEBS model performs better on winter-wheat field than on bare soil. (3) The sensitivity of SEBS to every parameter is different. The SEBS model is most sensitive to the available energy, up to 0.3, while it is more sensitive to surface-air temperature difference and aerodynamic resistance, up to 0.1 and 0.09 respectively.

Original languageEnglish
Title of host publication IGARSS 2004. 2004 IEEE International Geoscience and Remote Sensing Symposium
Place of PublicationAnchorage
PublisherIEEE
Pages4292-4294
Number of pages3
ISBN (Print)0-7803-8742-2
DOIs
Publication statusPublished - Sep 2004
Externally publishedYes
Event2004 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2004 - Anchorage, United States
Duration: 20 Sep 200424 Sep 2004

Conference

Conference2004 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2004
Abbreviated titleIGARSS 2004
CountryUnited States
CityAnchorage
Period20/09/0424/09/04

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