Application and Analysis of MODIS Satellite NDVI Time Series Change in Winter Wheat Area Estimate
Abstract：The study area of this paper is Guanzhong in Shanxi province,which is a major wheat-growing region.Based on EOS/MODIS satellite data,the survey data of winter wheat and the classification of land cover based on Landsat/TM image,we can get a vegetation index time series curve of different land cover.According to the NDVI variety of winter wheat during its growth and development period,we eliminate the non-wheat area information.Different thresholds will be set though compared the wheat＇s NDVI which in different critical growth period.The distribution and area of winter wheat will be analyzed and estimated with the help of spatial analysis module of GIS.The result shows that the accuracy rate of area by using this method is high.This approach may be an important tool for estimating area of regional crop over large area,and application potential of MODIS data in agriculture is proved better.
Keywords：EOS/MODISwinter wheatNDVIland coversown area
Publication Date：2011-05-27
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 46-49 )