BGS Hosted Metadata
The Ellett Line, Extended Ellett Line and Ellett Array Section (1975-)
The fundamental dataset consists of full water column temperature and salinity profiles, with discrete inorganic nutrient data added later on. Between 1975 and January 1996 there were usually multiple occupations, in a single year, of a section between the Scottish shelf and the Rockall Channel. Many of these occupations targeted only a selection of the 35 stations collectively recognised as the Ellett Line. Over the years various names were used to describe the hydrographic section (or components of it): The Rockall Section, The Anton Dohrn Seamount Section, The Shelf-Edge-Sound of Mull Section. These are collectively termed the Ellett Line, after the scientist David Ellett, who coordinated much of this early work. The Extended Ellett Line consisted of 58 identified stations between the North West coast of Scotland and Iceland, crossing the Scottish shelf, Rockall Channel and Iceland Basin. The Extended Ellett Line was occupied at least annually from 1996 to 2018. The water column profiles were collected using STDs/CTDs at recognised fixed stations along the section. The discrete inorganic nutrient data were obtained from water bottles fired at multiple depths on each profile, although these data are absent (or more limited) in the earlier stages of the time series. In 2018, the Extended Ellett Line became the Ellett Array. The Ellett Array consists of moorings, gliders and CTD sections in the Rockall Trough and Hatton-Rockall Basin. The overall Ellett Line/Extended Ellett Line/Ellett Array dataset is recognised as a key oceanographic time series. Several important water masses are captured within it – water masses that help drive ocean thermohaline circulation and consequently regulate climate on a global scale. The multi-decadal nature of the dataset provides a rare opportunity for scientists to monitor changing ocean circulation patterns. Ellett Line occupations were first carried out by the Scottish Marine Biological Association (SMBA), now the Scottish Association for Marine Science (SAMS). From 1996 there was a move to joint maintenance, with Southampton Oceanography Centre (SOC), now the National Oceanography Centre (NOC), sharing the responsibility with SAMS. Data collection as part of the Ellett Array is an ongoing activity. Some of the data are subject to a two-year embargo upon generation, after which they become available as part of this growing unrestricted data collection.
Simple
- Alternate title
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British Oceanographic Data Centre record 1048_1049005
- Date (Publication)
- 2017-10-03
- Date (Creation)
- 2021-10-04
- Date (Revision)
- 2021-10-04
- Citation identifier
- http://www.bodc.ac.uk/ / EDMED644
- Point of contact
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Organisation name Individual name Electronic mail address Role National Oceanography Centre (Southampton)
Unknown
Owner National Oceanography Centre (Southampton)
Unknown
Originator Scottish Association for Marine Science
Unknown
Owner Scottish Association for Marine Science
Unknown
Originator British Oceanographic Data Centre
Custodian British Oceanographic Data Centre
Distributor
- Maintenance and update frequency
- As needed
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SeaDataNet PDV
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MEDIN metadata record availability
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Vertical Coverages
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INSPIRE themes
- Access constraints
- Other restrictions
- Other constraints
- No limitations apply
- Other constraints
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Data are freely available
- Use constraints
- Other restrictions
- Other constraints
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No conditions apply
- Spatial representation type
- Text, table
- Language
- English
- Topic category
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- Oceans
))
- Geographic identifier
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North Atlantic Ocean
SeaVoX water bodies 2021-10-28 revision
- Geographic identifier
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Inner Seas off the West Coast of Scotland
SeaVoX water bodies 2021-10-28 revision
- Begin date
- 1975-01-01
- End date
- 2021-12-20 After
- Supplemental Information
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Publication year: 1986-01-01
Publication title: The hydrography of the Rockall Channel: An overview.
Publication authors: Ellett, D.J., Edwards, A. and Bowers, R.
Publication editors: Proceedings of the Royal Society Edinbinburgh, 88B: 61-81.
- Unique resource identifier
- urn:ogc:def:crs:EPSG::4326
- Codespace
-
OGP
- Distribution format
-
Name Version Delimited Network Common Data Form Ocean Data View Text or Plaintext
- OnLine resource
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Protocol Linkage Name https://www.bodc.ac.uk/data/bodc_database/nodb/data_collection/644/ BODC online data delivery service
- OnLine resource
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Protocol Linkage Name https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/2937d105-8dd8-5621-e053-6c86abc08f21/ Published dataset - doi:10.5285/2937d105-8dd8-5621-e053-6c86abc08f21
- OnLine resource
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Protocol Linkage Name https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/09760a3a-c2b5-250b-e053-6c86abc037c0/ Published dataset - doi:10.5285/09760a3a-c2b5-250b-e053-6c86abc037c0
- OnLine resource
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Protocol Linkage Name https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/5a2bc0d5-2bd7-7384-e053-6c86abc02543/ Published dataset - doi:10.5285/5a2bc0d5-2bd7-7384-e053-6c86abc02543
- Hierarchy level
- Dataset
Conformance result
- Title
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COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Date (Publication)
- 2010-12-08
- Explanation
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BODC protocols are based on the Open Archival Information System (OAIS) model enabling BODC to iterate towards compliance with the on-going evolution and development of community requirements including FAIR (Findable,Accessible,Interoperable,Reusable), TRUST (Transparency, Responsibility, User community, Sustainability, Technology) and CARE (Collective Benefit, Authority to Control, Responsibility, Ethics). Data managers quality assure submissions and assemble the metadata necessary for curation. Submissions (as received) are placed in a long-term accession and stored in triplicate across multiple sites. Appropriate data are transferred into a standard internal format with source variable names mapped to controlled vocabularies, documentation assembled, and metadata loaded into BODC databases. Access to these data is through direct request, the BODC website and through partner repositories such as SeaDataNet. Access control is attained by assigning a data policy to each set of data and this policy is used to administer access when data are requested. Discovery metadata is aligned with EU INSPIRE (through MEDIN) and SeaDataNet community standards. Data are converted to open community formats including Ocean Data View ASCII and SeaDataNet NetCDF, with data described using terms from the NERC vocabulary server. BODC submission agreements are documented on the BODC website and customer service is assured with a dedicated requests team that serve data following local regulations including General Data Protection Regulation (GDPR) 2018 and Environmental Information Regulations (EIR) 2004.
- Pass
- Yes
- Statement
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This dataset was created by the organisations with the "originator" role in this metadata record following their in-house data processing and quality control procedures. The data were then provided to the British Oceanographic Data Centre (BODC) for ingestion into one of the schemas of the National Oceanographic Database (NODB). During ingestion BODC undertake quality control, documentation and metadata enhancement procedures appropriate to the type of data. For an overview please see http://www.bodc.ac.uk/about/information_technology/data_processing_steps/. BODC supply full information about data collection, data processing and data quality with all data requests to enable users to assess data suitability themselves .
Instrument(s) used to collect data: current meters; water temperature sensor; nutrient analysers; discrete water samplers; salinity sensor; CTD.
Metadata
- File identifier
- 46e9d4c2f4ae5dd298bef2e9d8ae9014 XML
- Metadata language
- English
- Hierarchy level
- Dataset
- Date stamp
- 2021-12-20T06:31:16
- Metadata standard name
- MEDIN
- Metadata standard version
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3.1.1
- Metadata author
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Organisation name Individual name Electronic mail address Role British Oceanographic Data Centre
Polly Hadžiabdić
Point of contact
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