The Digital Terrain Model of the Bay of Biscaye and of the Channel is the result of the processing of a compilation of single and multibeam echosounder data, of DTMs and of chart countours produced before 2008 for hydrodynamic modeling..

Auteur(s): Lehembre Adrien , Projet de reconversion d'un bâtiment industriel situé en centre ville touristique en un centre culturel intégrant médiathèque, librairie ainsi que d'un lieu d'exposition à Bergerac (Dordogne)

Level 3 twice-daily sub-skin Sea Surface Temperature derived from AVHRR on Metop-A, global and re-projected on a 0.05° regular grid, in GHRSST compliant netCDF format. The satellite input data has successively come from Metop-A and Metop-B level 1 data processed at EUMETSAT. SST is retrieved from AVHRR infrared channels (3.7, 10.8 and 12.0 µm) using a multi-spectral algorithm and a cloud mask. Atmospheric profiles of water vapor and temperature from a numerical weather prediction model, Sea Surface Temperature from an analysis, together with a radiative transfer model, are used to correct the multispectral algorithm for regional and seasonal biases due to changing atmospheric conditions.The quality of the products is monitored regularly by daily comparison of the satellite estimates against buoy measurements. The product format is compliant with the GHRSST Data Specification (GDS) version 2. Users are advised to use data only with quality levels 3, 4 and 5.

Level 3, four times a day, sub-skin Sea Surface Temperature derived from AVHRR on Metop satellites and VIIRS or AVHRR on NOAA and NPP satellites, over North Atlantic and European Seas and re-projected on a polar stereographic at 2 km resolution, in GHRSST compliant netCDF format. This catalogue entry presents Metop-A North Atlantic Regional Sea Surface Temperature. SST is retrieved from infrared channels using a multispectral algorithm and a cloud mask. Atmospheric profiles of water vapor and temperature from a numerical weather prediction model, Sea Surface Temperature from an analysis, together with a radiative transfer model, are used to correct the multispectral algorithm for regional and seasonal biases due to changing atmospheric conditions. The quality of the products is monitored regularly by daily comparison of the satellite estimates against buoy measurements. The product format is compliant with the GHRSST Data Specification (GDS) version 2.Users are advised to use data only with quality levels 3,4 and 5.

A Group for High Resolution Sea Surface Temperature (GHRSST) Level 4 sea surface temperature analysis produced daily on an operational basis at the Naval Oceanographic Office (NAVOCEANO) on a global 0.1 degree grid. The K10 L4 sea surface temperature analysis uses SST observations from the Advanced Very High Resolution Radiometer (AVHRR), the Advanced Microwave Scanning Radiometer for EOS (AMSR-E), and the Geostationary Operational Environmental Satellite (GOES) Imager. The age, reliability, and resolution of the data are used in the weighted average with the analysis tuned to represent SST at 1 meter depth. AVHRR Pathfinder 9km climatology is used when no new satellite SST retrievals are available after 34 days.

A Group for High Resolution Sea Surface Temperature (GHRSST) Level 4 sea surface temperature analysis produced daily on an operational basis at the Naval Oceanographic Office (NAVOCEANO) on a global 0.1 degree grid. The K10 L4 sea surface temperature analysis uses SST observations from the Advanced Very High Resolution Radiometer (AVHRR), the Advanced Microwave Scanning Radiometer for EOS (AMSR-E), and the Geostationary Operational Environmental Satellite (GOES) Imager. The age, reliability, and resolution of the data are used in the weighted average with the analysis tuned to represent SST at 1 meter depth. AVHRR Pathfinder 9km climatology is used when no new satellite SST retrievals are available after 34 days.

suivi qualitatif et quantitatif des biocénoses benthiques (ensemble des organismes vivant à proximité du fond : anémones, étoiles de mer, crustacés, coquillages etc.) du lac marin d’Hossegor (département 40) suivant un échantillonnage standardisé.

Cantonnement des males chanteurs de gorgebleues à miroir blanc (Luscinia svecica namnetum) à la période de reproduction (printemps), espèce typique des zones humides maritimes, inscrite à l¿annexe 1 de la directive 79/409, dit directive oiseaux.

Dans le cadre d'un projet régional (2008-2009) une approche multi résidus (polluants organiques, inorganiques et organométalliques) a été entreprise. Celle-ci vise à définir l'état actuel de la contamination du Bassin d'Arcachon, par une caractérisation des apports anthropiques, une meilleure compréhension de la dynamique des contaminants dans le Bassin et une analyse de l'impact vis a vis des organismes et notamment de l'huître.

Résultat de la modélisation du temps de renouvellement ou Flushing time dans la baie de Marennes-Oléron représentant en jours le temps qu'il faut pour que 60% d'une maille soit renouvelée selon une condition de vent caractéristique : Ouest à 5m/s.