Ground-based Stereo Hemispherical Photography

Two or more fish-eye digital cameras will be used to acquire stereo measurements of cirrus and contrail cloud base for comparison with satellite overpasses. In addition to cloud base height, these cameras will also be used to assess cloud amount and type derived from satellite sensors as well as cloud drift wind effect.

Airborne Lidar Profilometers

Underflight campaigns involving stereo 3-line imagers and laser profilometers will be used to compare cloud-top heights against satellite-derived estimates.

Ground-Based Radars

Six 94Ghz radars around the world will be used to acquire long time series of cloud-top heights contemporaneous with satellite overpasses, including specific flight campaigns over Chilbolton, UK where precipitation and Doppler radars will be used to monitor meteorological conditions.


A comparative study of ATSR2 Stereo, ATSR2 Brightness-Temperature and MOS O-band derived cloud-top heights over Chilbolton is on-going. The latest results of our analysis are here.
Go to the next topic - Enduser Requirements
Back to the Cloudmap Home Page
Back to the GE Home Page

Please note that any views expressed here do not necessarily reflect UCL College policy. No claim is made, explicit or implied, about the suitability of any data presented here for any purpose. All rights are reserved by individual members of the Dept., the Dept. itself, or UCL as appropriate, unless otherwise indicated.

Any links to pages provided by individuals in the department are done so on the understanding that they agree to abide by the College and draft UCL Guidelines.

Last modified: 12th October 2000