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| Meinesz, Alexandre; Belsher, Thomas; Boudouresque, Charles-françois; Lefevre, Jean-robert. |
| A Spot satellite image was processed to assess the suitability of this facility for the cartography of epibenthic populations and bottom types in the Mediterranean sublittoral fringe. The area studied was on the north coast of Porquerolles island (Hyeres, SE France). The treated data were compared with mapping carried out by diving. We show that satellite remote sensing may permit a distinction between certain epibenthic populations and bottom types down to 10 m depth. Thus the usefulness of the satellite is reduced where the sublittoral is steeply shelving, as the mappable area is narrow and represented by only a few pixels, each of which tends to overlap several separate biocoenoses. The image treated was obtained in June under very favourable... |
| Tipo: Text |
Palavras-chave: POSIDONIA-OCEANICA; MAPPING; REMOTE SENSING; SPOT. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00183/29397/27762.pdf |
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| Topliss, Bj; Payzant, La; Hurley, Pcf; Miller, Jr; Freemantle, J. |
| A comparison was made between multi-year, multi-season cruise information from the surface waters of the Scotian shelf and satellite imagery from the Coastal Zone Colour Scanner (CZCS). The colour imagery was able to identify several physical processes on the shelf (such as outflows and upwelling) to approximately the same degree as previously reported with thermal imagery. Because processing CZCS data requires the use of atmospheric and marine models defined by a range of input parameters, the various processing steps and assumptions were evaluated for potential impact on any marine interpretation of the imagery. The shelf waters were not a pure oceanic water mass throughout the year and turbidity levels were found to be the most significant interfering... |
| Tipo: Text |
Palavras-chave: SHELF SEA; REMOTE SENSING; TURBIDITY. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00103/21381/18981.pdf |
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