https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.8 2026-04-29T10:52:37.449Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/platforms/84d55533-31f1-4601-acad-5444b31b62b4 GFO-1 Date=2016-06-09 User Id=epneff Entity=AltLabel Operation=INSERT User Note=added altLabel System Note=insert AltLabel New Value=id: null text: GFO language code: en The mission objectives of GFO-1 (GEOSAT FOLLOW-ON-1) program theU.S. Navy's initiative to develop an operational family of radaraltimeters satellites to maintain continuous ocean observation fromthe GEOSAT exact repeat orbit. GFO-1 data will be used for precisemeasurement of both mesoscale and basin-scale oceanography. The lengthand time scales of these processes are too large for conventionalin-the-water oceanographic instrumentation configurations tomeasure. Satellite altimetry is the only known method by whichoceanographers can precisely measure sea surface topography. The shapeof the sea surface is the only physical variable directly measurablefrom space that is directly and simply connected to the large-scalemovement of water and the total mass and volume of the ocean.[Source: NASA] 2016-06-09 14:40:02.0