European Directory of Marine Environmental Data (EDMED)

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General
Data set name

Ocean Margin Exchange Phase II (OMEX II) Project Data Set (1996-1999)

Data holding centreBritish Oceanographic Data Centre
CountryUnited Kingdom  United Kingdom
ProjectOcean Margin Exchange - OMEX II(OMEX)
Time periodData collected from November 1996 to October 1999
OngoingNo
Geographical area

The Iberian Margin

Observations 
Parameters

Concentration of alkanes in the atmosphere; Carbon monoxide and dioxide concentrations in the atmosphere; Horizontal spatial co-ordinates; Alkalinity, acidity and pH of the water column; Ammonium and ammonia concentration parameters in water bodies; Transmittance and attenuance of the water column; Zooplankton and zoobenthos morphological parameters; Bacteria non taxonomy-related biomass expressed as carbon per unit volume of the water column; Bacteria generic abundance in water bodies; Air pressure; Carotenoid and flavenoid pigment concentrations in water bodies; Phytoplankton taxonomic biomass in water bodies; Carbon concentrations in sediment; Carbonate chemistry in sediment pore waters; Air temperature; Atmospheric humidity; Mineralogical composition; Variable fluorescence parameters; Particulate total and organic carbon concentrations in the water column; Chlorophyll pigment concentrations in sediment; Chlorophyll pigment concentrations in water bodies; Dissolved oxygen concentration parameters in sediment pore waters; Dissolved organic carbon concentration in the water column; Dissolved oxygen parameters in the water column; Wind strength and direction; Zooplankton feeding; Zooplankton defecation rates in the water column; Sediment microfossil morphology parameters; Zooplankton gut pigments; Amino acids in sediment; Stable isotope enrichment in biota; Other wave statistics; Lagrangian currents and transport rates in the water column; Vertical velocity of the water column (currents); Long-wave radiation; Bathymetry and Elevation; Zoobenthos generic abundance; Sediment grain size parameters; Zooplankton dry weight biomass per unit volume of the water column; Metal concentrations in sediment pore waters; Dissolved metal concentrations in the water column; Microzooplankton non taxonomy-related biomass expressed as carbon per unit volume of the water column; Microzooplankton generic abundance in water bodies; Microzooplankton grazing; Particulate total and organic nitrogen concentrations in the water column; Nutrient concentrations in sediment pore waters; Nitrate concentration parameters in the water column; Nitrite concentration parameters in the water column; Nitrogen concentrations in sediment; New production in water bodies; Dissolved concentration parameters for other gases in sediment pore waters; Phytoplankton taxonomic abundance in water bodies; Partial pressure (pCO2) and fugacity (fCO2) of carbon dioxide in the water column; Phosphate concentration parameters in the water column; Phaeopigment concentrations in sediment; Salinity of the water column; Horizontal velocity of the water column (currents); Inorganic chemical composition of sediment or rocks; Nutrient fluxes between the bed and the water column; Seabed photography; Other fluxes between the bed and the water column; Silicate concentration parameters in the water column; Geological sample radioactivity; Sedimentation flux of carbon, nitrogen or organic matter in the water column; Temperature of the water column; Bacterial production in the water column; Urea concentration parameters in the water column; Visible waveband radiance and irradiance measurements in the water column; Water column photography; Sediment water content, porosity and surface area; Radioactivity in the water column; Stable isotope enrichment in the water column; Geological sample magnetic, electrical and acoustic properties; Zooplankton taxonomy-related abundance per unit volume of the water column; Zooplankton taxonomy-related biomass expressed as carbon per unit volume of the water column; Zooplankton non taxonomy-related biomass expressed as carbon per unit volume of the water column; Zoobenthos taxonomy-related counts; Phaeopigment concentrations in the water column; Skin temperature of the water column; Concentration of suspended particulate material in the water column; Horizontal platform movement; Solar Radiation; Concentration of alkanes in the water column; Turbulence in the water column

Instruments

Anemometers; fluorometers; current meters; current profilers; satellite tracking system; radiometers; transmissometers; CTD; bathythermographs; thermistor chains; benthic incubation chambers; single-beam echosounders; multi-beam echosounders; underwater cameras; microstructure sensors; plankton recorders; plankton nets; benthos samplers; discrete water samplers; continuous water samplers; sediment traps; pH sensors; sediment grabs; unconsolidated sediment corers; shipboard incubators; in-situ incubators; centrifuges; elemental analysers; autoanalysers; optical microscopes; atomic absorption spectrometers; high performance liquid chromatographs; titrators; inductively-coupled plasma atomic emission spectroscopes; inductively-coupled plasma mass spectrometers; spectrophotometers; gamma-ray spectrometers; bench fluorometers; X-ray diffractometers; particle sizers; CTD undulators

Description 
Summary

The data set comprises a diverse collection of physical, chemical and biological measurements, encompassing well over 1000 parameters. There are data from over 1000 conductivity-temperature-depth (CTD)/rosette stations, over 440 core profiles, over 180 sediment trap samples, over 140 net hauls and much, much more. The primary study area was a box extending to the base of the slope from Vigo to Cap Finistere. However, data are included from both further offshore (filament tracking) and from the Portuguese Margin. Measurements were taken from November 1996 to October 1999 during 33 cruise legs, involving research vessels from seven nations. Data were collected using a variety of equipment and techniques, including expendable bathythermographs (XBTs), turbulence probes, CTDs and oceanographic undulators with auxiliary sensors. These hydrographic profiles were accompanied by net hauls, plankton recorder deployments, sediment cores and a comprehensive water sampling programmes during which a wide variety of chemical and biological parameters were measured. The station data were supplemented by underway measurements of oceanographic and meteorological properties. Results from production and phosphate uptake experiments are also included in the dataset, as are bathymetric data from multibeam (swath) surveys, coastal upwelling measurements and data from moored instruments and benthic landers. The dataset also includes imagery from satellites, seabed photography and X-ray photographs of core samples. The aim of the project was study biogeochemical processes at the shelf break and to quantify the fluxes of material between the shelf and the open ocean. The project brought together over 100 scientists from 40 research centres and universities throughout Europe. The British Oceanographic Data Centre (BODC) is assembling the data sets collected during OMEX II into its project database system and the data set is also available on CD-ROM.

OriginatorsBaltic Sea Research Institute Warnemuende (IOW)
CNRS-CEA Centre des Faibles Radioactivités
Christian Albrechts University of Kiel, Leibniz Laboratory for Radiometric Dating and Isotope Research
EPOC - Geology and Oceanography Department
GEOMAR Research Centre for Marine Geosciences
Ghent University, Faculty of Sciences, Biology Department
IEO/Spanish Oceanographic Institute
IHPT, Hydrographic Institute
Institute for Marine Science (IFM), University of Kiel
Institute of Marine Research (IIM-CSIC)
Max Planck Institute for Limnology
NIOZ Royal Netherlands Institute for Sea Research
NUI Galway
Netherlands Institute for Ecology, Centre for Estuarine and Marine Ecology
Norwegian College of Fishery and Science,University of Tromsø
Plymouth Marine Laboratory
Proudman Oceanographic Laboratory
Royal Belgian Institute of Natural Sciences, Management Unit of North Sea and Scheldt Estuary Mathematical Models, Ostend
Sir Alister Hardy Foundation for Ocean Science
Southampton Oceanography Centre
University of Algarve, Aquatic Resources Science and Technology Unit
University of Cambridge Department of Earth Sciences
University of Liege, Laboratory of Oceanology
University of Oviedo, Biology of Organisms and Systems departament
University of Rostock, Institute of Biosciences
University of Wales, School of Ocean Sciences
Université Libre de Bruxelles, Laboratory of Chemical Oceanography and Water Geochemistry
Vigo University, Ecology and Animal Biology Department
Data web sitehttp://www.bodc.ac.uk/products/bodc_products/omex_2/
Availability 
OrganisationBritish Oceanographic Data Centre
AvailabilityLicence
ContactPolly Hadžiabdić (Head of the BODC Requests Team)
Address

British Oceanographic Data Centre
Joseph Proudman Building 6 Brownlow Street
Liverpool
Merseyside
L3 5DA
United Kingdom

Telephone+44 (0) 151 795 4884
Emailenquiries@bodc.ac.uk
Administration 
Collating centreBritish Oceanographic Data Centre
Local identifier1048083
Global identifier198
Last revised2010-11-22