ỨNG DỤNG CÔNG NGHỆ ĐIỆN TOÁN ĐÁM MÂY GOOGLE EARTH ENGINE TRONG NGHIÊN CỨU LŨ LỤT TẠI ĐỒNG THÁP, HẠ LƯU SÔNG MÊ CÔNG

Abstract

Cloud computing is a trendy approach of information technology and gradually becoming a platform for addressing big data processing. This study explored the cloud-based platform - Google Earth Engine (GEE) to derive the flood information from optical satellite data Landsat (TM, ETM, OLI) from 1996 to 2017 and radar data Sentinel-1 in 2015-2017 in Dong Thap, lower Mekong river basin. The timeseries flooded maps indicated the most severe flood in Dong Thap in 2000, covered 77.68% province, and floodings decreased recently, covered only 27.76% province area in 2015. This is a valuable information for water resource management, and validation of flooding model in this region. This study also showed the potential application of GEE in accessing and processing multi-platform data for many geospatial researches.