Converse of object

• detect: Along with all the other waves and currents it detects, altimetry also reveals invisible waves.

Adjective modifier

• airborne: This unit is used in airborne laser altimetry, distance measurement and collision avoidance.

Modifies a noun

• datum: The results are being compared with recent highly accurate satellite altimetry data of the Southern Ocean.

• mission: There are significant advantages in merging the data from two or more Altimetry missions sampling the Earth with different orbital patterns.

Noun used with modifier

• radar: Magellan synthetic aperture radar data is combined with radar altimetry to develop a three-dimensional map of the surface.

• satellite: The results are being compared with recent highly accurate satellite altimetry data of the Southern Ocean.

• laser: This unit is used in airborne laser altimetry, distance measurement and collision avoidance.