Altimeter Geophysical Data Records (GDRs)
Geosat
ERS-1 and ERS-2
Topex/Poseidon
Geosat Follow-On
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Geosat ERS-1 and ERS-2 Topex/Poseidon Geosat Follow-OnGeosat ERS-1 and ERS-2 Topex/Poseidon Geosat Follow-On