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Proceedings Paper

Soil moisture status estimation over Three Gorges area with Landsat TM data based on temperature vegetation dryness index
Author(s): Lina Xu; Ruiqing Niu; Jiong Li; Yanfang Dong
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Paper Abstract

Soil moisture is the important indicator of climate, hydrology, ecology, agriculture and other parameters of the land surface and atmospheric interface. Soil moisture plays an important role on the water and energy exchange at the land surface/atmosphere interface. Remote sensing can provide information on large area quickly and easily, so it is significant to do research on how to monitor soil moisture by remote sensing. This paper presents a method to assess soil moisture status using Landsat TM data over Three Gorges area in China based on TVDI. The potential of Temperature- Vegetation Dryness Index (TVDI) from Landsat TM data in assessing soil moisture was investigated in this region. After retrieving land surface temperature and vegetation index a TVDI model based on the features of Ts-NDVI space is established. And finally, soil moisture status is estimated according to TVDI. It shows that TVDI has the advantages of stability and high accuracy to estimating the soil moisture status.

Paper Details

Date Published: 23 November 2011
PDF: 6 pages
Proc. SPIE 8006, MIPPR 2011: Remote Sensing Image Processing, Geographic Information Systems, and Other Applications, 80061F (23 November 2011); doi: 10.1117/12.902433
Show Author Affiliations
Lina Xu, China Univ. of Geosciences (China)
Wuhan Univ. (China)
Ruiqing Niu, China Univ. of Geosciences (China)
Jiong Li, China Univ. of Geosciences (China)
Yanfang Dong, Institute of Earthquake Science (China)


Published in SPIE Proceedings Vol. 8006:
MIPPR 2011: Remote Sensing Image Processing, Geographic Information Systems, and Other Applications
Faxiong Zhang; Faxiong Zhang, Editor(s)

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