Chinese Journal of Agrometeorology

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Monitoring and Assessment to Snow and Its Impacts on Agriculture Based on MODIS

SHEN Bin1,FANG Shi-bo2,GAO Xi-ning1,WANG Wei3(1.College of Agronomy,Shenyang Agricultural University,Shenyang 110866,China;2.Chinese Academy of Meteorological Sciences,Beijing 100081;3.College of Applied Meteorology,Nanjing University of Information Science & Technology,Nanjing 210044)   

  • Online:2011-02-10 Published:2011-02-10

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Abstract: Continuous low temperature,heavy snow and freezing emerged in Central China in mid-November 2009.The situation and impact of snow was analyzed and evaluated based on MODIS date and NDSI.The results showed that the curve of snow area changed as a single peak,the maximum value was on November 15th.The key snow area was in Shanxi province with 62.89×104km2,following Shaanxi,Henan and Hebei province with 40.10×104km2,37.62×104km2,37.58×104km2 respectively.No more than 10.5×104km2 in Shandong,Hubei and Beijing.The rapeseed has been negative impact due to seeding stage.However,the winter wheat could get more moisture during over-wintering stage.

Key words: Accumulated snow, Accumulated snow, Normalized Difference Snow Index(NDSI), Remote sensing, Winter wheat, Rapeseed