Virtual Workshop 2021: Session 5 Talk2: Bathymetry and coral/seagrass mapping in Google Earth Engine

This session will showcase supervised classification of benthic habitats using the freely available Google Earth Engine: a powerful cloud computing tool to which holds a multi-petabyte catalogue of satellite imagery ready for rapid analysis. We will cover how to visualise, explore, process and download data within a simple supervised classification using Sentinel 2 imagery. Training and validation data will be created to carry out an accuracy assessment and quantify the performance of the classification. Chapters 0:00 Talk Introduction 4:33 Explore Sentinel-2 data 8:11 Median Composite and masking 14:25 GEE script design 17:10 GEE Median Composite 22:03 GEE bathymetry 23:38 GEE classification 30:31 Accuracy statistics and finish Access to Earth Engine code - https://code.earthengine.google.com/?... Download GEE Simple Classification User Guide (https://projects.noc.ac.uk/cme-progra...)