Agenda 2063 CUDA DEM GIS GPU Hadoop History of engineering & technology IoT MapReduce MapReduce-based aggregate query algorithm OpenACC arable land quality (ALQ) big data buffer analysis data warehouses distributed processing technique geoportal geospatial applications geospatial big data geospatial data grid structure location-based aggregate queries mobility mobility analytics monitoring and evaluation multiple flow accumulation parallel computing parallel processing real-time soil erosion modelling