Publications

Zhao, Chenghua; Alateng, Tuya (2014). Retrieval of Soil Moisture in Mongolian Plateau Using MODIS Data and Temperature Vegetation Drought Index (TVDI) Method. 2014 INTERNATIONAL CONFERENCE ON GIS AND RESOURCE MANAGEMENT (ICGRM), 292-300.

Abstract
Soil moisture is the humidity in certain soil layer, indicating the mean water content and water-holding capacity of soil. Soil moisture has a great influence on the agricultural production and development. In this paper, we used the MODIS NDVI and temperature products to estimate the soil moisture based on the different climatic zone of Mongolian plateau using the temperature vegetation drought index method. To make the result more genuine and believable, we split the whole study region to five parts according to the climate feature. Then we got the temperature-vegetation-drought-index of each sub region. The result showed that: (1) analyzing the Mongolian Plateau soil moisture by zoning is of high pertinence, it can reduce the impact of varied climate and also can improve the accuracy of the results.(2) the spatial distribution of Mongolian Plateau soil moisture was that in the northeast and northwest, the TVDI value is low, which means the soil moisture is high; in the middle of the Mongolian Plateau, the TVDI value is high, it means the soil moisture is low, and has a trend to be drought.

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