Automatic analysis methods based on multichannel radiance data measured by the Advanced Very High Resolution Radiometer (AVHRR) on the NOAA7 and NOAA9 satellites are used to: (a) detect clear and cloudy areas above coastal regions; and (b) detect clouds and to estimate cloud amount above the Arctic. / Channels 1 2 and 4 of the AVHRR were employed to separate clear from cloudy radiances above coastal regions. / All AVHRR channels were used above the Arctic. A large number of orbits were analysed automatically and the analysis results were compared to manual analyses performed by an independent observer and to published analyses. The comparisons yield that the present algorithm provides a reliable method for the automatic detection of clouds in the Arctic.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.75908 |
| Date | January 1988 |
| Creators | Sakellariou, Nikolaos |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy (Department of Meteorology.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000910029, proquestno: AAINL52274, Theses scanned by UMI/ProQuest. |
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