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Plymouth Polytechnic Institute of Marine Studies

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  • The dataset comprises hydrographic data, including salinity, temperature, depth, dissolved oxygen, transmittance (for suspended sediment), chlorophyll, irradiance, and current velocities. Both oceanographic and benthic measurements of nutrients (nitrate, nitrite, silicate, phosphate and ammonium), phytoplankton and zooplankton abundance, dissolved and particulate trace metals, primary and bacterial production, sulphur compounds and halocarbons were collected, as well as atmospheric physical and chemical measurements. The data were collected in the North Sea between August 1988 and October 1990 over a series of 38 cruises on RRS Challenger. Oceanographic measurements were taken using hydrographic profilers, moored instruments and shipboard underway systems. Underway meteorological data were also collected in addition to a comprehensive atmospheric sampling programme. Both continuous and discrete water samples were collected, providing biogeochemical and biological data. These were supplemented by net hauls. Benthic processes were investigated with sediment cores taken on eight survey cruises at six sites of varied character, three being in the area of summer stratification. Water and benthic sample analyses were supplemented by results of seabed and shipboard incubation experiments. The North Sea Project evolved from a NERC review of shelf seas research, which identified the need for a concerted multidisciplinary study of circulation, transport and production. The Proudman Oceanographic Laboratory (POL), now the National Oceanography Centre (NOC) hosted the project. It involved over 200 scientists and support staff from the Natural Environment Research Council (NERC), the Ministry of Agriculture, Fisheries and Food (MAFF - now DEFRA) and other academic institutes. The data are held at the British Oceanographic Data Centre and are available on CD-ROM.

  • The Shelf Sea Biogeochemistry (SSB) data set comprises hydrographic data, including measurements of temperature, salinity and currents, complemented by bathymetric and meteorological data. The study area is located in the Celtic Sea, shelf seas and shelf-edges around the United Kingdom and Republic of Ireland. The data were collected by a combination of research cruises that spanned from March 2014 to September 2015. Shipboard data collection involved the deployment of conductivity-temperature-depth (CTD) packages in the study area. Continuous measurements of current velocities (using vessel mounted ADCPs, VMADCPs), bathymetry and surface ocean and meteorological properties were collected throughout each cruise. Moorings were deployed in the Celtic Sea in early 2014 and provided approximately two years worth of hydrographic time series data. The SSB programme aims to increase the understanding of the cycling of nutrients and carbon and the controls on primary and secondary production, and their role in wider biogeochemical cycles, which in turn will significantly improve predictive marine biogeochemical and ecosystem models over a range of scales. SSB brings together UK researchers from Bangor University, Centre for Environment, Fisheries and Aquaculture Science (CEFAS), Meteorological Office, National Oceanography Centre (NOC), Plymouth Marine Laboratory (PML), Scottish Association for Marine Science (SAMS), University of Aberdeen, University of East Anglia (UEA), University of Edinburgh, University of Liverpool, University of Oxford, University of Portsmouth and University of Southampton. It also has UK and Irish partners, as Agri-Food and Biosciences Institute (AFBI), Marine Institute and Marine Scotland Science. The programme was divided into five work packages, having Jonathan Sharples as the Principal Investigator for work package 1 (CANDYFLOSS), Martin Solan as Principal Investigator for work package 2 (Biogeochemistry, macronutrient and carbon cycling in the benthic layer), Peter J. Statham as Principal Investigator for work package 3 (Supply of iron from shelf sediments to the ocean), Icarus Allen as Principal Investigator for work package 4 (Integrative Modelling for Shelf Seas Biogeochemistry) and Keith Weston as Principal Investigator for work package 5 (Blue Carbon – How much carbon is stored in UK shelf seas, what influences storage and could it be used in carbon trading?). All data will be managed by the British Oceanographic Data Centre (BODC).