GIS and Remote Sensing Mapping and Analysis

 As global temperatures rise, urban areas are experiencing more frequent and intense heatwaves, posing serious risks to human health, infrastructure, and ecosystems. To address this growing challenge, Heat Risk Index (HRI) mapping has emerged as a vital tool for assessing and mitigating heat-related impacts. What is a Heat Risk Index? A Heat Risk Index combines multiple factors such as land surface temperature, vegetation cover, population density, and socio-economic vulnerability to identify areas most at risk during extreme heat events. By integrating GIS, remote sensing, and spatial analysis , HRI mapping provides a visual representation of heat exposure across different regions. Why is HRI Mapping Important? Identifies High-Risk Zones  : Helps policymakers and urban planners to pinpoint areas that needs heat mitigation strategies, such as tree planting, reflective surfaces, and cooling centers. Supports Public Health Initiatives  : Assists health agencies in...

  NDVI Mapping Using ArcGIS Pro Normalized Difference Vegetation Index (NDVI) is a powerful remote sensing tool used to assess vegetation health, monitor changes in land cover, and support environmental management decisions. NDVI uses satellite data to distinguish healthy vegetation from other surface types based on how they reflect light. ArcGIS Pro provides an excellent platform for performing NDVI analysis with its robust set of spatial tools and geospatial capabilities.   Steps to Map NDVI Using ArcGIS Pro          ·             First, we need multispectral satellite images, ideally from Landsat or Sentinel-2 satellites. The key bands for NDVI calculation are the Near-Infrared (NIR) and Red bands.          ·             Open ArcGIS Pro and load the multispectral data into projec...