PNOCAT 1
| Type | Oceanographic cruise |
|---|---|
| Set | This cruise is part of the set PNOC : PROGRAMME NATIONAL D'OCÉANOGRAPHIE CÔTIÈRE |
| Ship | Cote D'Aquitaine |
| Ship owner | CNRS |
| Dates | 10/02/1993 - 13/02/1993 |
| Chief scientist(s) | FROIDEFOND Jean-Marie |
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 | 10.17600/93410030 |
| Objective | Studying the hydrology and suspended particles (phytoplankton, bacteria, clays and silt) on the West Gironde continental shelf in the framework of the National coastal oceanography programme (PNOC-Atlantic). The stations were selected in order to locate the boundaries of the turbid plume (beige water) and the phytoplankton plume (green water) off the mouth of the Gironde River. Observations: Surface temperatures higher offshore (12°C) than near the coast and above all at the outflow of the Gironde estuary; No visible thermocline offshore, but stratification to the SW and NW of the Gironde with water which is less saline and colder at the surface than at depth. Green water extends far offshore and beige water does not leave the estuary, except at the W pass and along the Mauvaise bank. |
