Authors : Prof. Meera Nair, Mr. Rajesh Kapoor
ABSTRACT : Large dams, while instrumental in water storage, irrigation, and hydroelectric power generation, often lead to significant environmental transformations. Remote sensing technology offers an efficient means of assessing these impacts by providing continuous spatial and temporal data over vast and inaccessible regions. This paper explores methodologies for employing satellite imagery and geospatial analysis in Environmental Impact Assessments (EIA) of large dams. It highlights case studies, evaluates pre- and post-construction ecological changes, and discusses the integration of remote sensing in long-term monitoring programs. Findings suggest that combining spectral analysis, land cover mapping, and change detection techniques can enhance transparency, accuracy, and efficiency in dam-related EIAs.
Keywords : Remote Sensing, Environmental Impact Assessment, Large Dams, Change Detection, Land Cover Mapping, Water Resource Management
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