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WALES Program

WALES (Water Vapour and Lidar Experiment in Space) was an ESA Earth Explorer candidate concept for global, high-accuracy and high-vertical-resolution water-vapour profiles through the troposphere and lower stratosphere. Its active four-wavelength differential-absorption lidar would overcome the uneven coverage and bias of radiosondes and passive sensors, support climate and numerical-weather-prediction models, and provide cloud, aerosol, boundary-layer and surface-reflectance spin-offs. ESA assessment material documents WALES as a research concept rather than an implemented programme.

Identity

Aliases
WALESWater Vapour and Lidar Experiment in SpaceEarth Explorer WALESWALES mission
Domains
spaceflight
Name
WALES Program
Status
planned
Types
researchscience

Details

Description
WALES (Water Vapour and Lidar Experiment in Space) was an ESA Earth Explorer candidate concept for global, high-accuracy and high-vertical-resolution water-vapour profiles through the troposphere and lower stratosphere. Its active four-wavelength differential-absorption lidar would overcome the uneven coverage and bias of radiosondes and passive sensors, support climate and numerical-weather-prediction models, and provide cloud, aerosol, boundary-layer and surface-reflectance spin-offs. ESA assessment material documents WALES as a research concept rather than an implemented programme.
Leads
Parent Program
Participants
-
Start Date
2001

Assets & Meta

Creation Time
August 13, 2026 at 17:16:52 UTC
Updated Time
August 13, 2026 at 17:16:52 UTC

Other