CALIOPE 01
Type | Oceanographic cruise |
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Ship | Alis |
Ship owner | IRD |
Dates | 04/10/2011 - 13/10/2011 |
Chief scientist(s) | DUPOUY Cécile |
INSTITUT MEDITERANNEEN D'OCEANOLOGIE (UMR 235 MIO) - NOUMEA Centre IRD de Noumea 101 Promenade Roger Laroque BP-A5 98848 Noumea Cedex |
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DOI | 10.17600/11100090 |
Objective | Our project focused on studying the optical properties of lagoon waters on the Eastern coast of New Caledonia. The objective was to collect multi- and hyperspectral reflectance and attenuation measurements to validate the ocean colour satellite maps, adapt the algorithms to compute chlorophyll concentrations using remote sensing and produce phytoplankton maps which could be incorporated into biogeochemical models. This coast is very sensitive to inputs from mining catchment basins. In fact on this coast, satellite images show that the turbidity can be much higher in the case of strong rains (maximum impact of East coast catchments) than on the West Coast. Moreover, this lagoon is much deeper than that of the West coast and is particularly suitable for ocean colour remote sensing. This CALIOPE cruise follows on from the PNTS and SPIRALES VALHYBIO/VALHYSAT projects conducted by IRD and supplements the database of optical data collected during the Alis Valhybio cruise in March-April 2008 to the south of New Caledonia. http://nouvelle-caledonie.ird.fr/toute-l-actualite/actualites/la-couleur-de-l-eau-indicateur-de-sante-des-lagons and http://nouvelle-caledonie.ird.fr/toute-l-actualite/sciences-en-direct. |