IIIT Hyderabad Publications |
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Single and Double Crop Maps of Indian Districts using MODIS 250-m DataAuthors: Sudhir Gupta, K S Rajan Conference: Map World Forum www.mapworldforum.org Date: 2009-02-10 Report no: IIIT/TR/2009/39 AbstractThe report of the working group on agricultural statistics for the tenth five year plan set up by the Planning commission recognizes the critical role of space applications in improving crop statistics with the use of remote sensing technology. The group also states that the applications of remote sensing ushers the era of advanced IT(Information Technology) applications. In the context of crop forecasting, where the speed and accuracy of data flow and its inference is important, the advanced IT tools are essential. Policy decisions are influenced by statistical data and hence it is important that the data being used reflects the ground truth to the best extent. Ironically, we rely on agricultural census carried out with the year 2000-01 as the reference year as the eighth agricultural census with reference year 2005-06 is currently progressing in the country. With the aid of remote sensing, agricultural census can be carried out every year without human errors by devising fool proof algorithms. Such revised estimates of agricultural statistics will lead to more realistic policy decisions. As a first step towards this objective, this paper explores the possibilities of using MODIS 250-m data to extract single and double cropping regions over some districts of Karnataka. The paper concludes by describing the challenges that are present in land use classification in Indian context. The paper also discusses the problems faced in validating land use classification results over large area with no good quality ground truth available at the required resolution. Centre for Spatial Informatics |
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