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Details of Time-series physical and chemical transports through the Rockall Trough

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Dataset identification

Title of datasetTime-series physical and chemical transports through the Rockall Trough
Narrative summary of datasetMonthly-averaged transport time-series: volume, temperature, salt, nitrate, phosphate, silicate, dissolved inorganic carbon and total alkalinity.
Summary of processing methodology - Moored time-series (temperature, salinity, pressure and dissolved oxygen) calibrated using standard cal-dip protocol, or in the case of dissolved oxygen using nearby post-deployment and pre-deployment CTD profiles. - Section CTD and oxygen sensor data were calibrated using bottle samples. - Water samples were analysed for dissolved inorganic nutrients, dissolved inorganic carbon and total alkalinity. - Multiple linear regression equations were derived linking dissolved inorganic nutrients / dissolved inorganic carbon / total alkalinity and temperature, salinity, pressure and dissolved oxygen. - Multiple linear regression equations were applied to calibrated moored time-series to calculate derived time-series of dissolved inorganic nutrients, dissolved inorganic carbon and total alkalinity. - Time-series were low-pass filtered to remove tidal oscillations, interpolated onto 12-hourly time-steps, and a regular pressure grid. - Volume transports were calculated from moored CTD and current meter records. - Nutrient and carbon transports were calculate by multiplying volume transports by derived moored nutrient and carbon fields. - Temperature transports were calculated by multiplying volume transports, by interpolated moored temperature fields, and by potential density, and specific heat of seawater. - Salt transports were calculated by multiplying volume transports by interpolated moored salinity fields.
Supporting documentationtimeseries_transport_Rockall_Trough.doc
Project/programmeATLAS: A transatlantic assessment and deep-water ecosystem-based spatial management plan for Europe
Start date2017-05-15
End date2018-07-15

Responsible organisations

CountryUnited Kingdom
Organisation nameScottish Association for Marine Science
Role of organisationOriginator of Dataset

Dataset availability

Original dataset download linkhttps://cloud.emodnet-ingestion.eu/index.php/s/D7mL5QThkcGgp7Y
Dataset formatText or Plaintext
Public accessNo limitations
License for useODC-ODbL
TypeDataset

Locations

Map
Latitude north boundary58.6311827089
Longitude east boundary-10.436053913227
Latitude south boundary54.265186005174
Longitude west boundary-17.291522663227
Coordinate reference systemWorld Geodetic System 84
Sea areaNortheast Atlantic Ocean (40W)

Data types, collection and processing

Observation typeCarbonate system
Dissolved gases
Nutrients
Water column temperature and salinity
Currents
ParameterAlkalinity, acidity and pH of the water column
Dissolved oxygen parameters in the water column
Lagrangian currents and transport rates in the water column
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Salinity of the water column
Silicate concentration parameters in the water column
Total dissolved inorganic carbon (TCO2) concentration in the water column
Temperature of the water column
Instrument typecurrent meters
CTD
Platform typeresearch vessel
mooring

Process information

Submitting organisationScottish Association for Marine Science
Submission identifier (UUID)8b58d509-152a-4aaf-b048-757cc0dbe871
Date of dataset creation2019-10-01
Date of metadata creation2019-10-01
Date of metadata latest revision2019-11-19
Date of publishing2019-11-22
Processing data centreBritish Oceanographic Data Centre
Summary record-ID563