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Jha Satyamkumar Manoj

GE4006

Assessing Desertification: Mapping Spatial Extent

Desertification, the degradation of land in arid, semi-arid, and dry sub-humid regions driven by climatic and human factors, poses an urgent threat to agriculture, biodiversity, and livelihoods, particularly in vulnerable regions. This project addresses this critical issue by evaluating desertification vulnerability in Giridih, Jharkhand, using remote sensing and GIS. A Desertification Vulnerability Index (DVI) was developed through weighted overlay analysis of indices like BSI, MSAVI, TGSI, Slope, and TCI. Comparative analysis of DVI maps from 2013 and 2023 revealed alarming trends of intensification in vulnerable areas, with some recovery. Validation with SAC, ISRO’s Desertification Atlas underscores the reliability of findings, providing actionable insights for targeted mitigation strategies to curb further degradation.


Report Content

Introduction

Need of Study, Aim, & Objectives

Study Area & Dataset

Methodology

Calculation of Indices

Calculation of Indices & Assigning Weights

Desertification Vulnerability Index

Change Detection and Inferences

Validation

Conclusion