Major, William; Giering, Sarah Lou Carolin; Ainsworth, Joanna; Ashurst, Daniel; Belcher, Anna; Blackbird, Sabena J; Bridger, Martin; Briggs, Nathan; Carvalho, Filipa; Clement, Louis; Cook, Kathryn B; Dumousseaud, Cynthia; Espinola, Benoit; Evans, Claire; Fielding, Sophie; Hartmann, Manuela; Henson, Stephanie A; Iversen, Morten Hvitfeldt; Kiriakoulakis, Kostas; Lampitt, Richard Stephen; Lovecchio, Elisa; Martin, Adrian Peter; Mayor, Daniel J; Moore, Mark; Pabortsava, Katsiaryna; Pebody, Corinne A; Peel, Kate; Poulton, Alex J; Preece, Calum; Rayne, Rachel; Saw, Kevin Antony; Stinchcombe, Mark Colin; Stowasser, Gabriele; Tarling, Geraint A; Thomalla, Sandy J; Villa-Alfageme, María; Wolff, George A; Sanders, Richard J (2024): CTD sensor and related bottle data analyses from RRS Discovery cruise DY086 at site P3 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.963390
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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 using a trace metal free Titanium Rosette (events 4, 7, 15, 19, 24, 26, 29) and a Stainless Steel Rosette (all other events). 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). Bacterial abundance and leucine assimilation were made from bottle samples of six CTD casts of the stainless-steel rosette. Water was collected at six depths (6 m, deep-chlorophyll maximum, mixed layer depth + 10, 100, 250 and 500 m). Acid-cleaned HDPE carboys and tubing were used for sampling. Samples were then stored in the dark and at in-situ temperature prior to on-board laboratory sample preparation or analysis. Flow cytometry was used to measure bacterial abundance. Room temperature paraformaldehyde was used to fix 1.6 ml samples for 30 minutes. Then, using liquid nitrogen, the samples were flash frozen and stored at -80°C. Samples were then defrosted before being stained using SYBR Green I and run through the flow cytometer (BD FACSort™). The method of Hill et al. (2013) was applied to determine prokaryotic leucine assimilation using L-[4,5-³H] leucine which has a specific activity of 89.3 Ci/mmol. In the mixed and upper layers of the water column, the protocol in Zubkov et al. (2007) was followed. Below the mixed layer, adaptions to the method included reducing the concentration of ³H-Leucine to 0.005, 0.01, 0.025, 0.04 and 0.05 nM; increasing experimental volumes to 30 ml; enhancing incubation times to 30, 60, 90 and 120 min. These adaptions were made to improve accuracy where lower rates of leucine assimilation were expected. Data were provided by the British Oceanographic Data Centre and funded by the National Environment Research Council.
Supplement to:
Major, William; Giering, Sarah Lou Carolin; Ainsworth, Joanna; Ashurst, Daniel; Belcher, Anna; Blackbird, Sabena J; Bridger, Martin; Briggs, Nathan; Carvalho, Filipa; Clement, Louis; Cook, Kathryn B; Dumousseaud, Cynthia; Espinola, Benoit; Evans, Claire; Fielding, Sophie; Henson, Stephanie A; Iversen, Morten Hvitfeldt; Kiriakoulakis, Kostas; Lampitt, Richard Stephen; Lovecchio, Elisa; Mayor, Daniel J; Moore, Mark; Pabortsava, Katsiaryna; Pebody, Corinne A; Peel, Kate; Poulton, Alex J; Preece, Calum; Rayne, Rachel; Saw, Kevin Antony; Sanders, Richard J; Stinchcombe, Mark Colin; Stowasser, Gabriele; Tarling, Geraint A; Thomalla, Sandy J; Villa-Alfageme, María; Wolff, George A; Martin, Adrian Peter (in review): Active and passive organic carbon fluxes during a bloom in the Southern Ocean (South Georgia). Scientific Data
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, Kostas; 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
Hill, Polly G; Warwick, Phillip E; Zubkov, Mikhail V (2013): Low microbial respiration of leucine at ambient oceanic concentration in the mixed layer of the central Atlantic Ocean. Limnology and Oceanography, 58(5), 1597-1604, https://doi.org/10.4319/lo.2013.58.5.1597
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; Clement, 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; Giering, Sarah Lou Carolin; Hartmann, Markus; Brandsma, L; Sanders, Richard J; Evans, Claire (in press): 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
Zubkov, Mikhail V; Tarran, Glen A; Mary, Isabelle; Fuchs, Bernhard M (2007): Differential microbial uptake of dissolved amino acids and amino sugars in surface waters of the Atlantic Ocean. Journal of Plankton Research, 30(2), 211-220, https://doi.org/10.1093/plankt/fbm091
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
Project(s):
Funding:
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: 1 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):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Event label | Event | Major, William | |||
2 | DATE/TIME | Date/Time | Major, William | Geocode | ||
3 | LATITUDE | Latitude | Major, William | Geocode | ||
4 | LONGITUDE | Longitude | Major, William | Geocode | ||
5 | Site | Site | Major, William | |||
6 | DEPTH, water | Depth water | m | Major, William | Barometer, Paroscientific, Digiquartz TC | Geocode |
7 | Temperature, water | Temp | °C | Henson, Stephanie A | Temperature sensor, SEA-BIRD SBE 3Plus | |
8 | Salinity | Sal | Henson, Stephanie A | Conductivity sensor, SEA-BIRD SBE 4C | PSU | |
9 | Density, sigma-theta (0) | Sigma-theta | kg/m3 | Henson, Stephanie A | Calculated according to UNESCO (1983) | |
10 | Oxygen | O2 | µmol/l | Henson, Stephanie A | Dissolved Oxygen Sensor, Sea-Bird, SBE 43 and SBE 43F | |
11 | Oxygen saturation | O2 sat | % | Henson, Stephanie A | Calculated according to UNESCO (1983) | |
12 | Radiation, photosynthetically active | PAR | µE/m2/s | Major, William | PAR sensor, Biospherical, LI-COR, SN 70520 | |
13 | Radiation, photosynthetically active | PAR | µE/m2/s | Major, William | PAR sensor, Biospherical, LI-COR, SN 70510 | |
14 | Angular scattering coefficient, 700 nm | beta700 | m/sr | Major, William | Scattering meter, WET Labs, ECO-BB OBS | |
15 | Attenuation, optical beam transmission | Attenuation | 1/m | Major, William | Transmissometer, WET Labs, C-Star | |
16 | Nitrate | [NO3]- | µmol/l | Stinchcombe, Mark Colin | Colorimetric analysis | |
17 | Phosphate | [PO4]3- | µmol/l | Stinchcombe, Mark Colin | Colorimetric analysis | |
18 | Silicate | Si(OH)4 | µmol/l | Stinchcombe, Mark Colin | Colorimetric analysis | |
19 | Carbon, organic, particulate | POC | µmol/l | Giering, Sarah Lou Carolin | Organic Elemental Analyzer, Thermo Fisher Scientific, Flash 2000 | |
20 | Dissipation rate | Diss rate | W/kg | Clement, Louis | Calculation according to Kunze et al. (2006) | shear 150-300 m and strain 20-150 m |
21 | Eddy diffusivity | K rho | m2/s | Clement, Louis | Calculation according to Kunze et al. (2006) | shear 150-300 m and strain 20-150 m |
22 | Dissipation rate | Diss rate | W/kg | Clement, Louis | Calculation according to Kunze et al. (2006) | shear 70-200 m and strain 30-300 m |
23 | Eddy diffusivity | K rho | m2/s | Clement, Louis | Calculation according to Kunze et al. (2006) | shear 70-200 m and strain 30-300 m |
24 | Chlorophyll a | Chl a | mg/m3 | Briggs, Nathan | Fluorometer, Chelsea Instruments, Aquatracka MKIII | |
25 | Net primary production of carbon | NPP C | mmol/m3/day | Poulton, Alex J | Liquid scintillation counter, Packard, TRI-CARB 3100TR | |
26 | Carbon, organic, dissolved | DOC | µmol/l | Lovecchio, Elisa | High Temperature Catalytic Oxidation (Shimadzu TOC-VCPN) | |
27 | Carbon, organic, dissolved, flux | DOC flux | mg/m2/day | Lovecchio, Elisa | Calculated | |
28 | Leucine uptake rate | Leu upt rate | pmol/l/h | Rayne, Rachel | Radioassays, liquid scintillation counting | |
29 | Bacteria | Bact | #/ml | Rayne, Rachel | Flow cytometer, Becton Dickinson, FACSort |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 4 (ProcLevel4)
Size:
171794 data points
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