Short Name:
PODAAC_MGDR_A

TOPEX/POSEIDON ALTIMETER MERGED GEOPHYSICAL DATA RECORD VER A

The TOPEX/POSEIDON MGDR (Merged Geophysical Data Record) contains global coverage altimeter data. The objective of the TOPEX/POSEIDON mission, launched in August 1992 and currently operating, is to determine ocean topography with a sea surface height measurement precision of 3 cm and a sealevel measurement accuracy of 13 cm. The data product combines measurements from two altimeters, a NASA dual frequency (Ku and C band) instrument similar to the Geosat altimeter, and a French (CNES) instrument which is a proof-of-concept solid-state altimeter (Ku band).

Map of Earth