National Wasteland Change Analysis

Introduction: National Wasteland Change Analysis [Cycle-3] is a nationwide programme implemented through State partner institutes and monitored by NRSC/ISRO. KSRSAC produced the seamless Wasteland database of Karnataka State on 1:50k scale. The updating of Wasteland layer under this programme has been carried out using IRS Resourcesat-2, LISS-III data of 2015-16 for change analysis.

Methodology: The methodology involved geo-rectification of satellite data, ground truth collection, data interpretation and mapping, geodatabase generation and quality evaluation.

Summary of Work: Wasteland mapping showing the status in year 2015-16 has been completed by updating the Wasteland map generated in the year 2008-09. Area under Wastelands has increased from 15538 Km2 in 2008-09 to 16987 Km2 in 2015-16 (from 8.1% to 8.85% of the total geographical area).