Indo-Ganges River Basin Land Use/Land Cover (LULC) and Irrigated Area Mapping

Gumma, M K and Thenkabail, P S and Teluguntla, P and Whitbread, A M (2019) Indo-Ganges River Basin Land Use/Land Cover (LULC) and Irrigated Area Mapping. In: Indus River Basin: Water Security and Sustainability. Elsevier Inc, pp. 203-228. ISBN 978-0-12-812782-7

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Abstract

This study was conducted to map detailed land use/land cover (LULC) and irrigated area categories in the Ganges and Indus River basins using near-continuous time-series 250 m resolution moderate-resolution imaging spectroradiometer (MODIS) data. The study used a unique data set—a stack of 46 images, 23 MODIS images each of 2-bands, compiled from MODIS terra images for the years 2013 and 2014. Field-plot data were gathered from 553 precise geographic locations covering about 8000 km in the basins. Spatial information on cropland and irrigated area distribution was restricted by the district-level crop statistics published by the state or national governments in India and Pakistan. Statistics were collected by irrigation and agriculture departments, but there was discrepancy in the irrigated area between departments. Water availability in major command areas varied frequently due to rainfall fluctuations, which leads to an inadequate water supply during critical crop growth stages. The study analyzed MODIS 16-day normalized difference vegetation index (NDVI) time-series data acquired for 2013 and 2014 using spectral matching techniques (SMTs). The map output accuracies were evaluated based on independent ground data and compared with subnational level statistics. The producer's and user's accuracies of the cropland classes were between 70% and 85%. The overall accuracy and the kappa coefficient estimated for irrigated areas were both 84%.

Item Type: Book Section
Divisions: Research Program : Innovation Systems for the Drylands (ISD)
CRP: CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC)
CGIAR Research Program on Water, Land and Ecosystems (WLE)
Uncontrolled Keywords: Irrigated areas, MODISMDVI, Ground data, Indo-Ganges Basin, moderate-resolution imaging spectrora diometer data, MODIS
Subjects: Others > Agriculture
Others > GIS Techniques/Remote Sensing
Depositing User: Mr Ramesh K
Date Deposited: 23 Jan 2019 06:34
Last Modified: 23 Jan 2019 06:34
URI: http://oar.icrisat.org/id/eprint/11050
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