AMD BML Decision support system Groundwater depletion Groundwater game app Groundwater management Groundwater modelling HF radar Kuroshio intrusion MPA Monitoring of groundwater levels Northern East China Sea (NECS) Open Access Pumping tests for monitoring of pumping rates of wells SAR SAR images Sentinel-1 Smart metering of electricity consumption Smart metering of pumping wells Subsidized land fallowing Surface water diversion Synthetic Aperture Radar UAVs accumulation-rate adaptive joint time-frequency (AJTF) decomposition airborne HF/VHF radar anthropogenic-marine-debris azimuth autocorrelation function beached-marine-litter co-evolutionary particle swarm optimization