Mapping surface water using Earth Engine (Floods, Water change, Seasonal Reservoirs) | Geo4Good '23

👉 The slide deck for this talk → https://docs.google.com/presentation/... 🛰️ More about the 2023 Geo for Good Summit → https://g.co/earth/geoforgood23 ❤️🌍 DESCRIPTION: Experts Gennadii Donchyts and Kel Markert, demonstrate how cutting-edge mapping technology and datasets can monitor and analyze water bodies across the globe. Discover how algorithms and satellite imagery fuse to provide insights into water-related applications, from agricultural impacts to flood tracking,surface water occurrence and change mapping, coastal changes and bathymetry, moisture. Then the session provides a hands-on experience focusing on the waterbody dynamics and flood detection with optical multispectral and SAR satellite imagery. Reuse the code, try out new techniques, and contribute to meaningful environmental research today. 💻 TIMESTAMPS: 0:00 - Introduction to Water Session 1:08 - Session Logistics Overview 2:45 - Agenda of Today's Water Session 3:48 - Importance of Water Study 5:20 - Flood Events Analysis 8:01 - Water Changes Time-Lapse 10:02 - Long-Term Water Dynamics 16:54 - Water-Related Datasets Exploration 17:32 - SMAP Satellite Data Overview 18:30 - Reservoirs Seasonal Variability Study 21:08 - SWD Algorithm Explanation 21:59 - Water Detection with SWD 22:50 - Mapping Water Occurrence with SWD 23:45 - SWA Time Series Generation Test 25:03 - JRC Monthly Water Dataset Introduction 27:54 - Analyzing Water Occurrence Data 30:30 - Multispectral Imagery for Water Detection 32:50 - Satellite Spectral Bands for Water Study 34:35 - NDVI Index Calculation 37:22 - Techniques for Cloud Masking 45:36 - NDVI Computation Process 49:46 - Custom Inspector Tool Demonstration 53:20 - Time Series Data Merging 56:23 - CloudScore+ Performance Analysis 57:47 - Identifying False Negatives in Water Detection 1:00:19 - Water Session Wrap-Up 🎙️ SPEAKERS: Gennadii Donchyts, Kel Markert; Google Remotesensing, Water index calculation, Global water crisis, How To Draw, Digital Art, Digital Art Tutorials, Water dynamics, NDVI index, Earth engine scripts, Sentinel2, Water mapping, Citizen science, Water quality, Coastline changes, Digital Painting, Water resource management, Remote sensing algorithms, Landsat, Earth engine, Water detection, Digital Artist, Geospatial analysis, Digital Art Tips, Environmental monitoring, Geospatial data