groundwater
3 articlesCan Satellites See Underground? Radar, InSAR and Gravity
Can satellites see underground? Only a little: radar reaches metres into dry sand, InSAR sees ground move above mines and tunnels, gravity sees groundwater.
2026-10-29 · 11 min read
Tracking Groundwater Depletion from Space: The GRACE Gravity Mission
How GRACE and GRACE-FO satellites measure changes in Earth's gravity field to detect groundwater depletion at regional scales. Covers the physics, major findings, and implications for water security.
2025-10-14 · 9 min read
Ground Subsidence Monitoring with InSAR: Detecting Sinking Cities from Space
How satellite InSAR measures ground subsidence caused by groundwater extraction, mining, and natural processes at millimeter precision. Covers PS-InSAR methodology, global hotspots, and infrastructure risk assessment.
2025-09-27 · 10 min read