Abstract:
This dataset is referring to 2-year time series of particle flux, as measured by two deep moored sediment traps (P2, P3) located in the Southern Ocean (northern Scotia Sea sector), a globally important region of atmospheric CO2 drawdown containing both naturally iron-fertilised (P3) and iron-limited (P2) regimes. The dataset includes the main biogeochemical flux parameters (such as Bsi, POC and PIC) as well as the specific contribution of each part of the plankton calcifying community (pteropods, foraminifera, coccolithphores and ostracods) to the PIC within a period from April 2009 to February 2011. The dataset allows the estimation of the Carbonate Counter Pump (CCP), which causes an increase in surface ocean CO2 through the calcification and precipitation of carbonate.
Keywords:
Biosilica, Foraminifera, Inorganic Carbon, Organic Carbon, Pteropod
Manno, C. (2018). Carbonate flux in the Northern Scotia Sea from April 2009 to February 2011 (Version None) [Data set]. Polar Data Centre, British Antarctic Survey, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/749ffa17-ee4f-46a4-8827-5f062af19a6c
| Use Constraints: | Data released under Open Government Licence V3.0: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
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| Creation Date: | 2018-09-26 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dr Clara Manno |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Reference: | Manno C., Giglio F., Stowasser G., Fielding S., Enderlein P. and Tarling G.A. (2018) Threatened species drive the strength of the carbonate pump in the Scotia Sea (Southern Ocean), Nature Communication, Accepted | |
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| Quality: | Physical data acquired during the sediment trap deployment suggest the record was not subjected to major hydrodynamic biases since mean current velocities near to the sediment traps were < 10 cm s-1 and we assumed no significant lateral advection occurred. | |
| Lineage: | Sample were collected by using sediment trap deployed on bottom-tethered moorings during the WCB cruise number JR200 and JR228. Once in the laboratory, samples were divided into a series of replicate fractions for subsequent analysis using a McLane rotary sample splitter (McLane Labs, Falmouth, MA, USA). TC and POC was measured by combustion in an elemental analyser (CHN); Particulate Inorganic Carbon (PIC) was obtained by determining the difference between Total particulate Carbon (TC) and Particulate Organic Carbon (POC). Biogenic silica (BSi) was determined following a progressive dissolution method followed by colorimetric analysis. Calcifying plankton component (pteropods, ostracods and foraminifera) were counted and picked by using a light microscope (Olympus SZX16). CaCO3 was measured for each taxonomic group by combustion in a muffle furnace at 550°C. Coccolithophore carbonate amount was indirectly estimated by analysing the amount of CaCO3 left in the sample after the removal of pteropods, ostracod and foraminifera. | |
| Temporal Coverage: | |
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| Start Date | 2009-04-01 |
| End Date | 2011-02-28 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -55.19983 |
| Northernmost | -55.19983 |
| Longitude | |
| Westernmost | -40.12366 |
| Easternmost | -40.12366 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | 1500 m |
| Max Depth | N/A |
| Latitude | |
| Southernmost | -52.72333 |
| Northernmost | -52.72333 |
| Longitude | |
| Westernmost | -40.1471 |
| Easternmost | -40.1471 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | 2000 m |
| Max Depth | N/A |
| Location: | |
| Location | Southern Ocean |
| Detailed Location | Scotia Sea |
| Sensor(s): |
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