CAO Project Oceanographic data set

Data set information

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Data holding centreBritish Oceanographic Data Centre
CountryUnited Kingdom  United Kingdom
Time periodOceanographic data collected from June 2017 to August 2019
Geographical area

Barents Sea


Quality control flags; Raw light meter output; Raw oxygen sensor output; Density of the water column; Salinity of the water column; Temperature of the water column; Metadata parameters; Chlorophyll pigment concentrations in water bodies; Dissolved oxygen parameters in the water column; Electrical conductivity of the water column




The Changing Arctic Ocean (CAO) data set comprises hydrographic data, including measurements of temperature, salinity and pigments. The study area was the Arctic Ocean, more specifically the Barents Sea. The data were collected by a research cruise from June to August 2016. Shipboard data collection involved the deployment of conductivity-temperature-depth (CTD) packages. The CAO programme aims to understand the changes in the Arctic marine ecosystem in a quantifiable way, which will allow computer models to help predict the consequences of these changes on, for example, surface ocean productivity, species distributions, food webs and ecosystems, and the services they provide (ecosystem services) . It is a NERC funded programme that draws on collaboration between the Scottish Association for Marine Science (SAMS), University of Liverpool (UoL), University of Leeds (ULeeds), University of Edinburgh, University of Oxford, Scottish Universities Environmental Research centre (SUERC), University of Strathclyde, University of St. Andrews, University of Southampton, University of Manchester, Durham University, University of Bristol, Universite Libre de Bruxelles, Sir Alister Hardy Foundation for Ocean Science (SAHFOS), National Oceanography Centre (NOC), Newcastle University, British Antarctic Survey (BAS) and Plymouth Marine Laboratory (PML), . The programme is divided in four projects with the following Principal Investigators : Arctic PRIZE (Arctic productivity in the seasonal ice zone), led by Finlo Cottier from SAMS, ARISE (Can we detect changes in Arctic ecosystems?), led by Claire Mahaffey from UoL, ChAOS (The Changing Arctic Ocean Seafloor), led by Christian Maerz from ULeeds and DIAPOD (Mechanistic understanding of the role of diatoms in the success of the Arctic Calanus complex and implications for a warmer Arctic), led by David Pond from SAMS. The majority of the data will be managed by the British Oceanographic Data Centre (BODC), with a minority of data sets (mainly related to biology) being submitted to the Polar Data Centre (BAS-PDC).

OriginatorsScottish Association for Marine Science
University of Leeds, School of Earth and Environment
University of Liverpool, School of Environmental Sciences
Data web site
OrganisationBritish Oceanographic Data Centre
ContactJoana Beja (Enquiries Officer)

British Oceanographic Data Centre
Joseph Proudman Building 6 Brownlow Street
L3 5DA
United Kingdom
Collating centreBritish Oceanographic Data Centre
Local identifier1048CAO dataset
Global identifier6777
Last revised2019-06-04