Flood Impact Assessment Using Sentinel-1 | Preprocessing and Flood Extent Analysis | GEE | Tutorial скачать в хорошем качестве

Flood Impact Assessment Using Sentinel-1 | Preprocessing and Flood Extent Analysis | GEE | Tutorial

Learn how to perform a flood impact assessment using Google Earth Engine (GEE) in this step-by-step tutorial. Gain valuable insights into the extent and impact of a flood event on factors like land cover, cropland, built-up areas, and population by analyzing satellite imagery and data. This tutorial specifically utilizes Sentinel-1 imagery, known for its all-weather and day-and-night imaging capabilities. Discover why Sentinel-1 is preferred for flood analysis, including its weather independence, high temporal resolution, dual polarization capabilities, and global coverage. Follow the provided code divided into two chapters to prepare for the flood impact assessment. In the first chapter, define the region of interest (ROI) using the FAO/GAUL dataset and select relevant datasets. Next, calculate the flood extent and visualize it on the map. Performing flood extent analysis involves applying a speckle filter to enhance flood signals, setting a threshold to classify flooded and non-flooded areas, and masking out permanent water bodies and areas with steep slopes. Remove isolated pixels caused by noise or errors to refine the flood extent. Visualize the flood extent on the map and calculate the flood area. By following this tutorial, you'll establish a strong foundation for conducting a comprehensive flood impact assessment. Gain insights into flood extent and severity for effective disaster management, risk assessment, and mitigation planning. Stay tuned for the next video tutorial and blog post, where we'll explore damage assessment and the visualization of flood impact results. Website: https://www.techguruguides.com/flood-... LinkedIn:   / bogatisunil9843569716   #earthengine #flood #gee #satelliteimagery #dataanalysis #disastermanagement #riskassessment