EO·Atlas
methodologies
Radar altimetry - sea surface height and inland water levels
Measures sea surface height, significant wave height, and inland water levels from nadir-pointing radar pulse returns; good for sea level rise monitoring, ocean circulation, and river/lake hydrology.
Nadir pulse-limited or SAR-mode altimeter measures round-trip travel time to the surface. Corrections applied for ionosphere, wet/dry troposphere, and tides. TOPEX/Poseidon -> Jason-1/2/3 -> Sentinel-6 constitutes an unbroken record since 1992. Wikipedia: Radar altimeter
Sources
- [1]Wikipedia: Radar altimetercommunity2026-05-22