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Data Publisher for Earth & Environmental Science
Abstract:
Physical, chemical and biogeochemical measurements derived from CTD-rosette deployments during three visits to site P3 (November to December, 2017) in the South Atlantic. Measurements were made during COMICS cruise DY086 on the RRS Discovery. Physical parameters include temperature, salinity, density, photosynthetically active radiation and turbulence; chemical parameters include dissolved oxygen, dissolved oxygen saturation, nitrate, phosphate and silicate; biogeochemical parameters include turbidity, beam transmittance, beam attenuation, fluorescence, particulate organic carbon (POC), dissolved organic carbon (DOC), chlorophyll-a, net primary productivity (NPP), ambient leucine assimilation and bacterial cell count. To determine turbulence, a downward facing lowered acoustic doppler current profiler (LADCP, Teledyne Workhorse Monitor 300 kHz ADCP) was attached to the CTD frame. Shear and strain, which are obtained from velocity and density measurements, were used to estimate the dissipation rate of turbulent kinetic energy and the diapycnal eddy diffusivity from a fine-scale parameterisation. Estimates are calculated by parameterising internal wave-wave interactions and assuming that wave breaking modulates turbulent mixing. A detailed description of the method for calculating diffusivity from LADCP and CTD can be found in Kunze et al. (2006). Two datasets with different vertical resolutions were produced: one in which the shear is integrated from 150 to 300 m and the strain over 20-150 m, and one in which the shear is integrated from 70 to 200 m and the strain over 30-200 m. Nutrients (nitrate, phosphate, silicate) were determined via colourimetric analysis (see cruise report, Giering and Sanders, 2019), POC was determined as described in Giering et al. (2023), DOC and DOC flux were determined as described in Lovecchio et al. (2023), NPP was determined as described in Poulton et al. (2019), and ambient leucine assimilation and bacterial cell count were determined as described in Rayne et al. (2024). Data was provided by the British Oceanographic Data Centre and funded by the National Environment Research Council.
Keyword(s):
biological carbon pump; fluxes; marine biogeochemistry
Related to:
Cook, Kathryn B; Belcher, Anna; Juez, Daniel Bondyale; Stowasser, Gabriele; Fielding, Sophie; Saunders, Ryan A; Elsafi, Mohamed A; Wolff, George A; Blackbird, Sabena J; Tarling, Geraint A; Mayor, Daniel J (2023): Carbon budgets of Scotia Sea mesopelagic zooplankton and micronekton communities during austral spring. Deep Sea Research Part II: Topical Studies in Oceanography, 210, 105296, https://doi.org/10.1016/j.dsr2.2023.105296
Henson, Stephanie A; Briggs, Nathan; Carvalho, Filipa; Manno, Clara; Mignot, Alexandre; Thomalla, Sandy J (2023): A seasonal transition in biological carbon pump efficiency in the northern Scotia Sea, Southern Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 208, 105274, https://doi.org/10.1016/j.dsr2.2023.105274
Sanders, Richard J; Henson, Stephanie A; Martin, Adrian Peter; Anderson, Tom R; Bernardello, Raffaele; Enderlein, Peter; Fielding, Sophie; Giering, Sarah Lou Carolin; Hartmann, Manuela; Iversen, Morten Hvitfeldt; Khatiwala, Samar; Lam, Phyllis; Lampitt, Richard Stephen; Mayor, Daniel J; Moore, Mark; Murphy, Eugene J; Painter, Stuart; Poulton, Alex J; Saw, Kevin Antony; Stowasser, Gabriele; Tarling, Geraint A; Torres-Valdés, Sinhué; Trimmer, Mark; Wolff, George A; Yool, Andrew; Zubkov, Mike (2016): Controls over Ocean Mesopelagic Interior Carbon Storage (COMICS): Fieldwork, Synthesis, and Modeling Efforts. Frontiers in Marine Science, 3, 136, https://doi.org/10.3389/fmars.2016.00136
References:
Giering, Sarah Lou Carolin; Sanders, Richard J; Blackbird, Sabena J; Briggs, Nathan; Carvalho, Filipa; East, Holly Kate; Espinola, Benoit; Henson, Stephanie A; Kiriakoulakis, Konstadinos; Iversen, Morten Hvitfeldt; Lampitt, Richard Stephen; Pabortsava, Katsiaryna; Pebody, Corinne A; Peel, Kate; Preece, Calum; Saw, Kevin Antony; Villa-Alfageme, María; Wolff, George A (2023): Vertical imbalance in organic carbon budgets is indicative of a missing vertical transfer during a phytoplankton bloom near South Georgia (COMICS). Deep Sea Research Part II: Topical Studies in Oceanography, 209, 105277, https://doi.org/10.1016/j.dsr2.2023.105277
Kunze, Eric; Firing, Eric; Hummon, J M; Chereskin, Teresa K; Thurnherr, Andreas M (2006): Global Abyssal Mixing Inferred from Lowered ADCP Shear and CTD Strain Profiles. Journal of Physical Oceanography, 36(8), 1553-1576, https://doi.org/10.1175/JPO2926.1
Lovecchio, Elisa; Clément, Louis; Evans, Claire; Rayne, Rachel; Dumousseaud, Cynthia; Roshan, Saeed; Giering, Sarah Lou Carolin; Martin, Adrian Peter (2023): Export of Dissolved Organic Carbon (DOC) compared to the particulate and active fluxes near South Georgia, Southern Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 212, 105338, https://doi.org/10.1016/j.dsr2.2023.105338
Poulton, Alex J; Davis, Clare E; Daniels, Chris J; Mayers, Kyle M J; Harris, Carolyn; Tarran, Glen A; Widdicombe, Claire E; Woodward, E Malcolm S (2019): Seasonal phosphorus and carbon dynamics in a temperate shelf sea (Celtic Sea). Progress in Oceanography, 177, 101872, https://doi.org/10.1016/j.pocean.2017.11.001
Rayne, Rachel R -P; Giering, Sarah L C; Hartmann, Manuela; Brandsma, Joost; Sanders, Richard D; Evans, Claire (2024): Temporal shifts in prokaryotic metabolism in response to organic carbon dynamics in the mesopelagic ocean during an export event in the Southern ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 214, 105368, https://doi.org/10.1016/j.dsr2.2024.105368
Documentation:
Giering, Sarah Lou Carolin; Sanders, Richard J (2019): RRS Discovery Cruise DY086, 12 November – 19 December 2017. Controls over Ocean Mesopelagic Carbon Storage (COMICS), National Oceanography Centre Cruise Report, No. 55. National Oceanography Centre, Southampton, UK, 265 pp, dy086.pdf
Funding:
Horizon 2020 (H2020), grant/award no. 817806: Sustainable management of mesopelagic resources
Natural Environment Research Council (NERC), grant/award no. NE/M020835/1: Controls over Ocean Mesopelagic Interior Carbon Storage
Coverage:
Median Latitude: -40.363873 * Median Longitude: -52.534846 * South-bound Latitude: -40.770000 * West-bound Longitude: -52.950000 * North-bound Latitude: -39.701700 * East-bound Longitude: -52.051700
Date/Time Start: 2017-11-15T16:32:37 * Date/Time End: 2017-12-15T07:08:51
Minimum DEPTH, water: m * Maximum DEPTH, water: 1000 m
Event(s):
DY086_CTD002 * Latitude: -52.708300 * Longitude: -40.105000 * Date/Time: 2017-11-15T16:32:37 * Campaign: 74EQ20171115 (DY086) * Basis: Discovery (2013) * Method/Device: CTD/Rosette (CTD-RO)
DY086_CTD003 * Latitude: -52.690000 * Longitude: -40.125000 * Date/Time: 2017-11-16T04:55:38 * Campaign: 74EQ20171115 (DY086) * Basis: Discovery (2013) * Method/Device: CTD/Rosette (CTD-RO)
DY086_CTD004 * Latitude: -52.690000 * Longitude: -40.125000 * Date/Time: 2017-11-16T12:05:33 * Campaign: 74EQ20171115 (DY086) * Basis: Discovery (2013) * Method/Device: CTD/Rosette (CTD-RO)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventMajor, William
2DATE/TIMEDate/TimeMajor, WilliamGeocode
3LATITUDELatitudeMajor, WilliamGeocode
4LONGITUDELongitudeMajor, WilliamGeocode
5SiteSiteMajor, William
6DEPTH, waterDepth watermMajor, WilliamBarometer, Paroscientific, Digiquartz TCGeocode
7Temperature, waterTemp°CMajor, WilliamTemperature sensor, SEA-BIRD SBE 3Plus
8SalinitySalMajor, WilliamConductivity sensor, SEA-BIRD SBE 4CPSU
9Density, sigma-theta (0)Sigma-thetakg/m3Major, WilliamCalculated according to UNESCO (1983)
10OxygenO2µmol/lMajor, WilliamDissolved Oxygen Sensor, Sea-Bird, SBE 43 and SBE 43F
11Oxygen saturationO2 sat%Major, WilliamCalculated according to UNESCO (1983)
12Radiation, photosynthetically activePARµE/m2/sMajor, WilliamPAR sensor, Biospherical, LI-COR, SN 70520
13Radiation, photosynthetically activePARµE/m2/sMajor, WilliamPAR sensor, Biospherical, LI-COR, SN 70510
14Angular scattering coefficient, 470 nmbeta470m/srMajor, WilliamScattering meter, WET Labs, ECO-BB OBS
15Attenuation, optical beam transmissionAttenuation1/mMajor, WilliamTransmissometer, WET Labs, C-Star
16Nitrate[NO3]-µmol/lMajor, WilliamColorimetric analysis
17Phosphate[PO4]3-µmol/lMajor, WilliamColorimetric analysis
18SilicateSi(OH)4µmol/lMajor, WilliamColorimetric analysis
19Carbon, organic, particulatePOCµmol/lGiering, Sarah Lou CarolinOrganic Elemental Analyzer, Thermo Fisher Scientific, Flash 2000
20Dissipation rateDiss rateW/kgClément, LouisCalculation according to Kunze et al. (2006)shear 150-300 m and strain 20-150 m
21Eddy diffusivityK rhom2/sClément, LouisCalculation according to Kunze et al. (2006)shear 150-300 m and strain 20-150 m
22Dissipation rateDiss rateW/kgClément, LouisCalculation according to Kunze et al. (2006)shear 70-200 m and strain 30-300 m
23Eddy diffusivityK rhom2/sClément, LouisCalculation according to Kunze et al. (2006)shear 70-200 m and strain 30-300 m
24Chlorophyll aChl amg/m3Major, WilliamFluorometer, Chelsea Instruments, Aquatracka MKIII
25Net primary production of carbonNPP Cmmol/m3/dayPoulton, Alex JLiquid scintillation counter, Packard, TRI-CARB 3100TR
26Carbon, organic, dissolvedDOCµmol/lLovecchio, ElisaHigh Temperature Catalytic Oxidation, Shimadzu TOC-VCPN
27Carbon, organic, dissolved, fluxDOC fluxmg/m2/dayLovecchio, ElisaCalculated
28Leucine uptake rateLeu upt ratepmol/l/hRayne, Rachel
29BacteriaBact#/mlRayne, Rachel
Change history:
2025-02-04T09:42:03 – Version 2: Previous version doi:10.1594/PANGAEA.963390 contains errors due to data processing.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 4 (ProcLevel4)
Size:
171794 data points

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