Chinese Journal of Agrometeorology ›› 2013, Vol. 34 ›› Issue (02): 243-248.doi: 10.3969/j.issn.1000-6362.2013.02.018

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Soil Moisture Monitoring with EOS/MODIS VSWI Product in Xilingol

HE Jun jie1，WANG Ying shun1，LI Yun peng2，WU Ri na2，LV Xiang wei3   

  1. 1Inner Monglia Xilinhaote National Climatological Observatory，Xilinhaote026000，China；2Inner Mongolia Ecological & Agricultural Meteorology Centre，Hohhot010051；3Meteorological Bureau of Inner Mongolia Autonomous Region，Hohhot010051
  • Received:2012-08-26 Online:2013-04-20 Published:2013-04-16

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Abstract: The relationship between VSWI and relative soil moisture was analyzed based on the MODIS data and observed soil moisture of 0-10cm layer in 13 meteorological stations in Xilingol region inner Mongolia.The results showed that there was a linearity relationship between VSWI and relative soil moisture （P＜0.01），and the relative soil moisture measurement model was established.The simulation result with the model was in accord with practice.The drought process was monitored in August 2011 in Xilingol grassland.It was feasible to monitor extensive drought using VSWI，and it had important theoretical and practical significance to clarify soil moisture regime and drought.

Key words: EOS/MODIS, VSWI, Soil relative moisture