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According to the MODIS data from June 10 to September 21 in 2006, 12 phases of drought spatial distribution in
Chongqing have been gotten based on vegetation supply water index (VSWI), which showed the whole evolution
process of severe drought in 2006 in Chongqing from drought occurred - increased - relieved - increased again -
complete remission. To verify the monitor accuracy of VSWI in Chongqing severe drought in 2006, the soil moisture
data in 170 soil moisture monitoring stations in the same period was used. The results are shown as three aspects: 1.
Vegetation supply water index (VSWI) based on MOIDS data can monitor in real-time and feedback effectively summer
drought in Chongqing. 2. VSWI and soil moisture have a good negative correlation. 3. The correlation index between
VSWI and soil moisture also have certain relationships with elevation.
Shiqi Yang,Jia Yi,Yanghua Gao, andYongjin Xu
"The application of remote sensing monitoring during severe drought in 2006 summer in Chongqing area", Proc. SPIE 7749, 2010 International Conference on Display and Photonics, 77491P (21 July 2010); https://doi.org/10.1117/12.869643
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Shiqi Yang, Jia Yi, Yanghua Gao, Yongjin Xu, "The application of remote sensing monitoring during severe drought in 2006 summer in Chongqing area," Proc. SPIE 7749, 2010 International Conference on Display and Photonics, 77491P (21 July 2010); https://doi.org/10.1117/12.869643