Satellitealtimetrywasdevelopedinthe1960ssoonaftertheflightofartificialsatellitesbecameareality.Fromthevantagepointinspace,aradaraltimeterisabletomeasuretheshapeoftheseasurfacegloballyandfrequently.Suchmeasurementshaveawiderangeofapplicationstooceanography,geodesy,andgeophysics.The