under global warming . Long-term groundwater- level monitoring data are of critical importance  for understanding the sensitivity of recharge processes to climate variability and, more critically, calibration and validation of hydrological models . GRACE satellite-derived groundwater storage estimates provide important insights at a regional scale  but overlook more localised depletion or short-term storage gains. Low- and middle-income countries such as central Asia and sub- Saharan Africa lack such monitoring networks, which is a significant knowledge gap.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report