MULTI-SEASONAL ANALYSIS OF VEGETATION HEALTH AND SURFACE WATER AVAILABILITY IN LAKHIMPUR DISTRICT, ASSAM (2013-2023): AN NDVI AND NDWI-BASED SPATIO-TEMPORAL ANALYSIS

Understanding the relationship between vegetation health and surface water availability is crucial for sustainable land and water resource management. This study employs a spatio-temporal analysis of the Normalized Difference Vegetation Index (NDVI) and The Normalized Difference Water Index (NDWI) is a widely used remote sensing index for water body detection and monitoring trends in Lakhimpur District, Assam, covering the years 2013, 2016, 2019, and 2023 across pre-monsoon, monsoon, and post-monsoon seasons. Landsat 8 satellite images were processed in Google Earth Engine (GEE), Arc Map, and ensuring radiometric and geometric corrections for accuracy.