Zenith Wet Delay

 CALibration – VALidation

 Wide-Swath Ocean Altimeter

Water vapor in the atmosphere slows the radar pulse. This effect can generate mean errors of the order of 15 centimetres on altimetry

 Water Inclination Topography and Technology Experiment  

 WOrld Ocean Circulation Experiment

Turbo Rogue Space Receiver. One of three positioning systems on Jason-1

 Universal Time Coordinated. 

 University College London

The magnitude and shape of the radar altimetry