SOGIR 02
| Type | Oceanographic cruise |
|---|---|
| Set | This cruise is part of the set SOGIR |
| Ship | Cote D'Aquitaine |
| Ship owner | CNRS |
| Dates | 23/01/2002 - 11/11/2002 |
| Chief scientist(s) | CASTAING Patrice, LECONTE Michel |
ENVIRONNEMENTS ET PALÉOENVIRONEMENTS OCÉANIQUES ET CONTINENTAUX (EPOC) - TALENCE UMR CNRS 5805 EPOC - OASU - Université de Bordeaux Bâtiment A12 351 Cours de la Libération 33405 TALENCE CEDEX +33 (0)5 40 00 36 15 |
|
| DOI | 10.17600/2410070 |
| Objective | The SOMLIT coastal environment observation service (CNRS/INSU) includes the marine stations of Wimereux, Roscoff, Brest, Arcachon (http://www.epoc.u-bordeaux.fr), Banyuls, Villefranche/mer and Endoume. Its objective was to record long-term trends of coastal ecosystems subjected to natural (climate) or anthropogenic impacts. SOMLIT was based on a coherent network of measurement points (in number and location) where neritic and estuarine waters are sampled. In this framework, long-term scientific monitoring of the Gironde estuary was set up. Data were acquired in the SOMLIT and ecological monitoring of the Blayais site (EDF) to carry on from monitoring begun in 1978. This acquisition provides better knowledge about seasonal variability engendered by sudden (floods), continuous or slow (atmospheric warming, summer droughts) events and particularly the impact of winter floods on hydro-sedimentology or on the biological cycle of zooplankton species. Cruise dates were: 23 to 26 January, 11 to 14 March, 15 to 18 April, 6 to 9 May, 6 to 9 June, 8 to 11 July, 26 to 29 Ten times a year, on each mission, samples are taken at 4 stations at a set point during a tidal cycle under comparable tide conditions (neap tide). Samples are taken four times, at intervals of about 2 to 3 hours: 1 at high water, 2 mid-tide, 1 at low water, and at two levels: 1 m below the surface and 1 m above the seabed. |
