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Overall objectives in the EU GO project are to assess the promising potential of seismic imaging for physical oceanography, in view of its combination of fine resolution and coverage unmatched by conventional oceanographic measurements. D318 was to provide the means of assessment by obtaining a unique, comprehensive, oceanographic and seismic dataset at the same time and place. Specific objectives for R.R.S. Discovery cruise 318a were to deploy four ADCP moorings, three adjacent temperature-logger moorings and STABLE, in an L-shape array in 750-1000m depth east of Portimao Canyon, carrying out adjacent CTD stations, deploy two OBH moorings, carry out seismic sections using the Ifremer high-frequency air-guns and streamer, accompanied by regular XBT and less frequent XCTD casts. In addition underway data was logged including ship-borne ADCP, surface temperature and salinity, meteorology, gravity and magnetics (to test new NERC magnetometers).
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Overall objectives in the EU GO project are to assess the promising potential of seismic imaging for physical oceanography, in view of its combination of fine resolution and coverage unmatched by conventional oceanographic measurements. D318 was to provide the means of assessment by obtaining a unique comprehensive oceanographic and seismic dataset at the same time and place. Specific objectives for R.R.S. Discovery cruise 318b were to (i) recover four ADCP moorings, three adjacent temperature-logger moorings and STABLE, from 750-1000m depth east of Portimao Canyon (ii) perform deep water CTD casts (iii) carry out seismic sections using the NMF supplied Bolt airgun and streamer, accompanied by regular XBT and less frequent XCTD casts, iv) work with MV Poseidon to test novel seismic data acquistion strategies. In addition underway data was logged including ship-borne ADCP, surface temperature and salinity, meteorology, gravity and magnetics (to test new NERC magnetometers).
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Cr. Ostra-90 ref. B2945832.990 ICES created form
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Cr. First field campaign.
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To estimate nitrogen (NH4+, NO2-, NO3-), phosphate and silicate fluxes in the Strait of Gibraltar, to quantify and characterise the fluxes of particulate organic carbon and nitrogen (POC/PON) and to estimate of picoplankton, nanoplankton and microplankton biomass distribution in the Strait of Gibraltar To describe the hydrological structure and the geochemical fields of the region of the Gulf of Cadiz, particularly at the levels influenced by the Mediterranean waters, in order to set a background for interpreting the dynamics of the Outflow
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Cr. Huelva-91 ref. B2945834.990 ICES created form
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Estiamtion of the abundance of pelagic fish present in the North-east Atlantic waters in spring which is the spawning period for these fish species, but focussing in sardine and anchovy. Complementary to this main objective the survey design and strategies will allow the enviroment be characterised by recording differente variables (i. e. temperature, salinity, fluorescence, plankton, winds or air temperature) in vertical and horizontal profiles along the surveyed area with no noticeable extra-effort. As it was pointed out, these variables will help the acoustic estimations be improved whilst an extensive environment characterisation at the spawning time will be done.
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The overall objective of the cruise was to identify the pathways of sediment transfer from the conjugate margins of Algeria and of the Balearic Promontory to the Algerian Basin from the Early Pliocene flooding of the Mediterranean to the Present.The cruise is the result of a co-operation between the University of Barcelona and OGS within HERMES (Hotspot Ecosystems Research on the Margins of European Seas) Integrated Project.The proposed research complies also with the objectives of the Collaborative Research Programme ESF-EUROCORES on EUROMARGINS 'WEST-MED' and 'SPACOMA'. The survey has been planned in order to fill the bathymetry among existing data sets:- Spanish EEZ project (Instituto Espa?ol de Oceanografia and Instituto Hidrografico de la Marina);- The BALCOM Project (Instituto Espa?ol de Oceanografia);- And the MARADJA Project (Universite de Bretagne Occidentale and IFREMER).In addition the survey area covers the track of multichannel seismic profile MS-46 acquired by OGS in 1972.The cruise went very smoothly, helped by excellent weather conditions and proper functioning of the instrumentation. Departure from Palma on Sep 20 15:50. Begin of multibeam and chirp sonar survey the same day at 20:00. Start of multichannel seismic survey on Sep 27 at 17:45. End of operations on Sep 29 at 24:00. Arrival in Cartagena on Sep 30 at 12:00.
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1.- Estimacion de los indices de abundancia (numero y biomasa), de las especies demersales de mayor interes pesquero, asi como de la fauna asociada a ellas. 2.- Determinacion de la distribucion geografica y batimetrica de las diferentes especies. 3.- Obtencion de las distribuciones de tallas de peces, de las capturas asi como de los crustaceos y moluscos de interes pesquero. 4.- Extraccion de otolitos de merluza. 5.- Obtencion de datos biologicos de las principales especies comerciales: estados de madurez, proporcion de sexos 6.- Obtencion de datos oceanograficos.
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1.- Estimacion de los indices de abundancia (numero y biomasa), de las especies demersales de mayor interes pesquero, asi como de la fauna asociada a ellas. 2.- Determinacion de la distribucion geografica y batimetrica de las diferentes especies. 3.- Obtencion de las distribuciones de tallas de peces, de las capturas asi como de los crustaceos y moluscos de interes pesquero. 4.- Extraccion de otolitos de merluza. 5.- Obtencion de datos biologicos de las principales especies comerciales: estados de madurez, proporcion de sexos 6.- Obtencion de datos oceanograficos.