Applications
- 5.7.1 Groundwater Depletion Monitoring — Measuring subsurface water storage loss at basin scale by combining satellite gravimetry, InSAR land subsidence mapping and multi-spectral soil-moisture indices.
- 5.7.2 Reservoir Storage Tracking — Measuring surface area, water level and volumetric storage of reservoirs from orbit using radar altimetry, optical imagery and synthetic aperture radar.
- 5.7.3 River Flow Estimation — Measuring river surface width, slope and velocity from orbit to derive discharge estimates across gauged and ungauged river networks.
- 5.7.4 Glacier Mass Balance — Measuring glacier volume change over time using satellite radar altimetry, SAR interferometry and multispectral imagery to quantify ice loss and downstream water availability.
- 5.7.5 Drought Early Warning — Integrating satellite-derived soil moisture, vegetation stress and land surface temperature to issue drought alerts weeks before ground stations detect them.