ATSR-2 camera models for the automated stereo photogrammetric retrieval of cloud-top heights - initial assessments
Abstract:A description of two camera models is given which can be applied to along-track scanning radiometer 2 conical scanner images to provide estimates of cloud-top height and amount. Results are shown of initial quantitative assessments of these camera models and the underlying stereo-matching system applied to cloud-free areas in two different mountainous areas. These results indicate that for cloud-free areas with a sufficiently large range of heights the biases are mostly less than 1 km with standard deviations in the range of 0.31-4.96 km. This is in accordance within the predicted range of 1-2 km from previous theoretical studies.
Document Type: Research Article
Affiliations: 1: Department of Geomatic Engineering, University College London (UCL), London WC1E 6BT, UK,Now at Groupe On-X, Division Technologies, 92816 Puteaux Cedex, France 2: Department of Geomatic Engineering, University College London (UCL), London WC1E 6BT, UK,Now at Department of Space and Climate Physics, MSSL, UCL, Surrey RH5 6NT, UK 3: Deutsches Zentrum für Luft- und Raumfahrt, Institut für Physik der Atmosphäre, D - 82234 Wessling, Germany
Publication date: May 1, 2007