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Metadata: Nitrogen fixation in the Arctic Ocean (N-ARC) Project Datasets (July - August 2023)
Abstract:
This dataset comprises of data from stainless steel and titanium CTD casts and towfish, results of a nutrient addition incubation experiment, and underway meteorological, hydrographic, and navigational data. The CTD casts and towfish were sampled for biogeochemical properties: nitrate + nitrite, silicate, phosphate, nitrite, d18O, dissolved oxygen, chlorophyll-a, particulate carbon, carbon fixation rates and oxygen isotopes. The CTD casts also comprise of downcast sensor profile data and upcast sensor data at time of bottle firing: temperature, salinity, density, dissolved oxygen, optical backscatter, beam transmittance and attenuation, upward photosynthetically active radiation (PAR), and chlorophyll-a fluorescence. The underway sensor data are sea surface hydrography (temperature and salinity), optical (chlorophyll-a fluorescence, transmission) and meteorological (wind speed and direction, air temperature, air pressure, relative humidity PAR, TIR). The nutrient addition experiments were sampled for Nitrate+nitrite, phosphate, silicate, chlorophyll a, and Fv:Fm after addition of nitrate, phosphate, and/or iron chloride. All of the data were collected during cruise DY167 (GEOTRACES cruise GApr19) in July-August 2023 from Southampton up to the Norwegian and Barents Seas and cover the relatively warm Atlantic Water inflow, fresher water on the Spitzbergen Bank, coastal/glacial outflow around Svalbard, and Arctic water around sea ice. These data were collected to better determine how temperature, light, nutrients, and iron control the distribution and activity of nitrogen fixing organisms in the Arctic Ocean. This dataset was generated by the National Oceanography Centre (NOC), the University of Liverpool (UoL), and the University of Southampton, under Natural Environment Research Council (NERC) Discovery Science grant "Nitrogen fixation in the Arctic Ocean", N-ARC (grant numbers NE/T000570/1 and NE/T001240/1).
Data holder:
British Oceanographic Data Centre
| Other details | ||
| Internal code | Internally assigned metadata identifier | 7850 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | Nitrogen fixation in the Arctic Ocean (N-ARC) Project Datasets (July - August 2023) |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | British Oceanographic Data Centre record 1048_NE_T001240_1 |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | 655acca5d2855c239b21b45d035b3633 |
| Resource Identifier | This is the code assigned by the data owner. | EDMED7360 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | dataset |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2023-07-09 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2023-08-12 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | inapplicable |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | asNeeded |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | This dataset comprises of data from stainless steel and titanium CTD casts and towfish, results of a nutrient addition incubation experiment, and underway meteorological, hydrographic, and navigational data. The CTD casts and towfish were sampled for biogeochemical properties: nitrate + nitrite, silicate, phosphate, nitrite, d18O, dissolved oxygen, chlorophyll-a, particulate carbon, carbon fixation rates and oxygen isotopes. The CTD casts also comprise of downcast sensor profile data and upcast sensor data at time of bottle firing: temperature, salinity, density, dissolved oxygen, optical backscatter, beam transmittance and attenuation, upward photosynthetically active radiation (PAR), and chlorophyll-a fluorescence. The underway sensor data are sea surface hydrography (temperature and salinity), optical (chlorophyll-a fluorescence, transmission) and meteorological (wind speed and direction, air temperature, air pressure, relative humidity PAR, TIR). The nutrient addition experiments were sampled for Nitrate+nitrite, phosphate, silicate, chlorophyll a, and Fv:Fm after addition of nitrate, phosphate, and/or iron chloride. All of the data were collected during cruise DY167 (GEOTRACES cruise GApr19) in July-August 2023 from Southampton up to the Norwegian and Barents Seas and cover the relatively warm Atlantic Water inflow, fresher water on the Spitzbergen Bank, coastal/glacial outflow around Svalbard, and Arctic water around sea ice. These data were collected to better determine how temperature, light, nutrients, and iron control the distribution and activity of nitrogen fixing organisms in the Arctic Ocean. This dataset was generated by the National Oceanography Centre (NOC), the University of Liverpool (UoL), and the University of Southampton, under Natural Environment Research Council (NERC) Discovery Science grant "Nitrogen fixation in the Arctic Ocean", N-ARC (grant numbers NE/T000570/1 and NE/T001240/1). |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | This dataset was created by scientists for the NERC project titled Nitrogen fixation in the Arctic Ocean, N-ARC, grant reference numbers: NE/T000570/1 and NE/T001240/1. Downcast CTD sensor data were binned to 1 decibar, whilst the upcast data were averaged 5 seconds around the time of bottle firing. The sensor data were calibrated using discrete samples measurements where possible. Samples measurements were analysed following standard laboratory practices for depending on the property of interest. The underway data were processed in 10-minute means. Following in-house quality control procedures, the data were then submitted to the British Oceanographic Data Centre (BODC) for long-term archive and data publication in the BODC Published Data Library.Instrument(s) used to collect data: fluorometers; radiometers; optical backscatter sensors; atmospheric radiometers; salinity sensor; autoanalysers; inductively-coupled plasma mass spectrometers; isotope ratio mass spectrometers; nutrient analysers; CTD; transmissometers; discrete water samplers; water body temperature sensor; dissolved gas sensors; meteorological packages. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Horizontal spatial co-ordinates |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Electrical conductivity of the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Primary production in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Atmospheric visibility and transparency | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Wind strength and direction | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Phosphate concentration parameters in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Dissolved total or organic phosphorus concentration in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Air temperature | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Optical backscatter | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Dissolved total and organic nitrogen concentrations in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Transmittance and attenuance of the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Nitrate concentration parameters in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Vertical spatial coordinates | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Chlorophyll pigment concentrations in water bodies | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Salinity of the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Visible waveband radiance and irradiance measurements in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Density of the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Air pressure | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Dissolved metal concentrations in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Nitrite concentration parameters in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Silicate concentration parameters in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Temperature of the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bathymetry and Elevation | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Experiment state variables | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Dissolved oxygen parameters in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Atmospheric humidity | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Particulate total and organic carbon concentrations in the water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Meteorological geographical features | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Hydrography | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Atmospheric conditions | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Geographical grid systems | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Elevation | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitats and biotopes | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Oceanographic geographical features | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Coordinate reference systems | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Natural Environment Research Council Designated Data Centres | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | data.gov.uk | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | unknown | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 82 |
| East | The eastern-most limit of the data resource in decimal degrees | 36 |
| South | The southern-most limit of the data resource in decimal degrees | 50.333 |
| West | The western-most limit of the data resource in decimal degrees | -0.217 |
| Regional sea | North Sea | |
| Arctic Ocean | ||
| Barents Sea | ||
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | British Oceanographic Data Centre | |
| Individual name | Polly HadÅžiabdic | |
| Position name | Head of Enquiries | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| enquiries@bodc.ac.uk | ||
| URL | https://www.bodc.ac.uk/ | |
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | University of Liverpool Department of Earth, Ocean and Ecological Sciences | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Phone | +44 (0)151 794 5146 | |
| Delivery point | Jane Herdman Building | |
| Postal code | L69 3GP | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| soesnorth@liverpool.ac.uk | ||
| URL | https://www.liverpool.ac.uk/earth-ocean-and-ecological-sciences/ | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | University of Liverpool Department of Earth, Ocean and Ecological Sciences | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Phone | +44 (0)151 794 5146 | |
| Delivery point | Jane Herdman Building | |
| Postal code | L69 3GP | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| soesnorth@liverpool.ac.uk | ||
| URL | https://www.liverpool.ac.uk/earth-ocean-and-ecological-sciences/ | |
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | University of Southampton School of Ocean and Earth Science | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Phone | +44 (0)23 8059 2011 | |
| Delivery point | National Oceanography Centre, European Way | |
| Postal code | SO14 3ZH | |
| City | Southampton | |
| Administrative area | Hampshire | |
| Country | United Kingdom | |
| soes@noc.soton.ac.uk | ||
| URL | http://www.soes.soton.ac.uk/ | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | University of Southampton School of Ocean and Earth Science | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Phone | +44 (0)23 8059 2011 | |
| Delivery point | National Oceanography Centre, European Way | |
| Postal code | SO14 3ZH | |
| City | Southampton | |
| Administrative area | Hampshire | |
| Country | United Kingdom | |
| soes@noc.soton.ac.uk | ||
| URL | http://www.soes.soton.ac.uk/ | |
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | National Oceanography Centre (Liverpool) | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Phone | +44 (0)151 795 4800 | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| enquiries@noc.ac.uk | ||
| URL | http://noc.ac.uk | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | National Oceanography Centre (Liverpool) | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Phone | +44 (0)151 795 4800 | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| enquiries@noc.ac.uk | ||
| URL | http://noc.ac.uk | |
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | National Oceanography Centre (Southampton) | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Delivery point | University of Southampton, Waterfront Campus, European Way | |
| Postal code | SO14 3ZH | |
| City | Southampton | |
| Administrative area | Hampshire | |
| Country | United Kingdom | |
| enquiries@noc.ac.uk | ||
| URL | http://noc.ac.uk | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | National Oceanography Centre (Southampton) | |
| Individual name | Unknown | |
| Position name | Unknown | |
| Delivery point | University of Southampton, Waterfront Campus, European Way | |
| Postal code | SO14 3ZH | |
| City | Southampton | |
| Administrative area | Hampshire | |
| Country | United Kingdom | |
| enquiries@noc.ac.uk | ||
| URL | http://noc.ac.uk | |
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | British Oceanographic Data Centre | |
| Position name | Director | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| enquiries@bodc.ac.uk | ||
| URL | https://www.bodc.ac.uk/ | |
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | British Oceanographic Data Centre | |
| Position name | Director | |
| Delivery point | Joseph Proudman Building, 6 Brownlow Street | |
| Postal code | L3 5DA | |
| City | Liverpool | |
| Administrative area | Merseyside | |
| Country | United Kingdom | |
| enquiries@bodc.ac.uk | ||
| URL | https://www.bodc.ac.uk/ | |
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/25a19bf8-635a-c8d8-e063-7086abc07ccd/ |
| Locator name | Name of the web resource | Published dataset - doi:10.5285/25a19bf8-635a-c8d8-e063-7086abc07ccd |
| Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | download |
| Locator URL | Web address (URL) that links to the resource | https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/3bda959d-9b1f-7486-e063-7086abc01534/ |
| Locator name | Name of the web resource | Published dataset - doi:10.5285/3bda959d-9b1f-7486-e063-7086abc01534 |
| Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | download |
| Locator URL | Web address (URL) that links to the resource | https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/48e39c93-2405-99f3-e063-7086abc003fa/ |
| Locator name | Name of the web resource | Published dataset - doi:10.5285/48e39c93-2405-99f3-e063-7086abc003fa |
| Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | download |
| Locator URL | Web address (URL) that links to the resource | https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/48c1d94c-1647-8717-e063-7086abc0f520/ |
| Locator name | Name of the web resource | Published dataset - doi:10.5285/48c1d94c-1647-8717-e063-7086abc0f520 |
| Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | download |
| Locator URL | Web address (URL) that links to the resource | https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/48d50e6a-e137-e1e3-e063-7086abc09a72/ |
| Locator name | Name of the web resource | Published dataset - doi:10.5285/48d50e6a-e137-e1e3-e063-7086abc09a72 |
| Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | download |
| Locator URL | Web address (URL) that links to the resource | https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/4c1d29b9-ae76-6619-e063-7086abc01768/ |
| Locator name | Name of the web resource | Published dataset - doi:10.5285/4c1d29b9-ae76-6619-e063-7086abc01768 |
| Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | download |
| Locator URL | Web address (URL) that links to the resource | https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/4c1edb44-81e5-b3ad-e063-7086abc0ce83/ |
| Locator name | Name of the web resource | Published dataset - doi:10.5285/4c1edb44-81e5-b3ad-e063-7086abc0ce83 |
| Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | download |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | No limitations apply | |
| This states any limitations on access to the data. Multiple occurences are allowed here. One entry shall be from the INSPIRE Metadata registry and the other free text should be part of the resource `Have specific limitations`. | Data are freely available to all following agreement to the terms and conditions of a Data Licence | |
| 21.1 Conditions for Access and Use - Use constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | Usage restrictions are specified in the terms of the licence |
| Available data formats | ||
| Data format | Format in which digital data can be provided for transfer | Binary |
| Format in which digital data can be provided for transfer | Text or Plaintext | |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2025-02-11 |
| Date of last revision | The most recent date that the resource was revised. | 2026-02-19 |
| Date of creation | The date that the resource was created. | 2026-02-19 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2026-03-13 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 3.1.2 |