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dc.contributorPyla, Kesava Raoen_US
dc.contributorThenkabail, Prasaden_US
dc.contributorReddi, Venkataramana Murthyen_US
dc.contributorNaresh, Gundapakaen_US
dc.contributorIrshad Ahmed, Mohammeden_US
dc.contributorRafi, Ismail M. D.en_US
dc.creatorGumma, Murali Krishnaen_US
dc.identifier.citationMurali Krishna Gumma, Kesava Rao Pyla, Prasad Thenkabail, Venkataramana Murthy Reddi, Gundapaka Naresh, Mohammed Irshad Ahmed, Ismail M. D. Rafi. (25/4/2014). Crop Dominance Mapping with IRS-P6 and MODIS 250-m Time Series Data. Agriculture, 4, pp. 113-131.en_US
dc.description.abstractThis paper describes an approach to accurately separate out and quantify crop dominance areas in the major command area in the Krishna River Basin. Classification was performed using IRS-P6 (Indian Remote Sensing Satellite, series P6) and MODIS eight-day time series remote sensing images with a spatial resolution of 23.6 m, 250 m for the year 2005. Temporal variations in the NDVI (Normalized Difference Vegetation Index) pattern obtained in crop dominance classes enables a demarcation between long duration crops and short duration crops. The NDVI pattern was found to be more consistent in long duration crops than in short duration crops due to the continuity of the water supply. Surface water availability, on the other hand, was dependent on canal water release, which affected the time of crop sowing and growth stages, which was, in turn, reflected in the NDVI pattern. The identified crop-wise classes were tested and verified using ground-truth data and state-level census data. The accuracy assessment was performed based on ground-truth data through the error matrix method, with accuracies from 67% to 100% for individual crop dominance classes, with an overall accuracy of 79% for all classes. The derived major crop land areas were highly correlated with the sub-national statistics with R2 values of 87% at the mandal (sub-district) level for 2005–2006. These results suggest that the methods, approaches, algorithms and datasets used in this study are ideal for rapid, accurate and large-scale mapping of paddy rice, as well as for generating their statistics over large areas. This study demonstrates that IRS-P6 23.6-m one-time data fusion with MODIS 250-m time series data is very useful for identifying crop type, the source of irrigation water and, in the case of surface water irrigation, the way in which it is applied. The results from this study have assisted in improving surface water and groundwater irrigated areas of the command area and also provide the basis for better water resource assessments at the basin scaleen_US
dc.sourceAgriculture;4,(2014) Pagination 113,131en_US
dc.subjectirrigated area mappingen_US
dc.subjectcrop dominanceen_US
dc.subjectkrishna basinen_US
dc.subjectnagarjuna sagaren_US
dc.subjectcommand areaen_US
dc.subjectndvi and modis 250 men_US
dc.titleCrop Dominance Mapping with IRS-P6 and MODIS 250-m Time Series Dataen_US
dc.typeJournal Articleen_US
cg.subject.agrovocremote sensingen_US
cg.contributor.centerInternational Crops Research Institute for the Semi-Arid Tropics - ICRISATen_US
cg.contributor.centerThe National Institute of Rural Development and Panchayati Raj - NIRD&PRen_US
cg.contributor.centerU.S. Geological Survey - USGSen_US
cg.contributor.centerSAI RAM ENGINEERSen_US
cg.contributor.centerJawaharlal Nehru Technological University Hyderabad - JNTUHen_US
cg.contributor.crpCRP on Dryland Systems - DSen_US
cg.contributor.funderNot Applicableen_US
cg.coverage.regionSouthern Asiaen_US
dc.identifier.statusLimited accessen_US

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