| Study on soil moisture model in Mu Us desert using MODIS image |
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| DOI：10.7606/j.issn.1000-7601.2010.04.04 |
| Key Words: MODIS Band 7 soil moisture temperature vegetation drought index(TVDI) |
| Author Name | Affiliation | | HUO Aidi | School of Environmental Science & Engineering, Chang'an Universiy, Xi'an, Shaanxi 710054, China
College of Resources and Environment, Northwest A & F University，Yangling ，Shaanxi 712100, China | | KANG Xiangwu | Institute of Scientific and Technical Information of China, Bejing 100038, China | | ZHANG Guangjun | College of Resources and Environment, Northwest A & F University，Yangling ，Shaanxi 712100, China | | LI Weil | School of Environmental Science & Engineering, Chang'an Universiy, Xi'an, Shaanxi 710054, Chin |
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| Abstract: |
| Soil moisture is the most important parameter in hydrology, meteorology as well as in the fields of agricul-tural sciences. This paper proposes that the reflectivity of the 6th and the 7th wave band of MODIS image can be used to monitor soil moisture according to the water absorption rate curve. By detailed comparisons and analysis with temperature vegetation drought index(TVDI), we confim that reflectivity of band 7 of MODIS image covering the desertification area in Mu Us desert of China performs good negative correlations characteristics，close to the relations between MODIS band 7 reflectivity and surface humidity. It is also verified that the reflectivity of band 7 from MODIS image is very effective for large scale soil moisture monitoring in the desertification areas. |
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