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Lange, Nico; Fiedler, Björn; Silva, Pericles; Vieira, Nuno; Tanhua, Toste; Körtzinger, Arne (2023): Ship-based biogeochemical bottle data from the CVOO time series (2006-2019) in the Eastern Tropical North Atlantic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.958597

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Abstract:
This dataset compiles all available ship-based biogeochemical measurements at the Cape Verde Ocean Observatory (CVOO) into one merged dataset. The irregular measurements at CVOO started in 2006 and are still ongoing aiming at increasing data coverage in a key region for air-sea interaction. The station has a bottom depth of 3600 m and lies in the center of the Cape Verde Fontal Zone, resulting in large variations of the present oligotrophic water masses as well as an oxygen-poor layer between 400 m to 500 m. The dataset includes oxygen, nutrients, dissolved inorganic carbon, total alkalinity, and particulate organic matter measurements, and ancillary ctd-data are also included. The research vessels used and the exact measurement methods as well as the laboratories varied on a cruise-to-cruise basis, accordingly the data has undergone additional quality-control checks. The checks included flier detection (WOCE-flagging) and crossover-analysis that resulted in bias corrections.
Keyword(s):
ship-based; Time-Series Data
Additional metadata:
CVOO timeseries 2006-2019 metadata sheet
Project(s):
Changes in the carbon uptake and emissions by oceans in a changing climate (CARBOCHANGE)
Climate - Biogeochemistry Interactions in the Tropical Ocean (SFB754)
Improving and Integrating European Ocean Observing and Forecasting Systems for Sustainable use of the Oceans (EuroSea)
Integrated Assessment of Atlantic Marine Ecosystems in Space and Time (iAtlantic)
Marine carbon sources and sinks assessment (CARBOOCEAN)
Role of Eddies for the Carbon Pump in Coastal upwelling Areas (REEBUS)
Surface Ocean Processes in the Anthropocene (SOPRAN)
Funding:
German Research Foundation (DFG), grant/award no. 27542298: Climate - Biogeochemistry Interactions in the Tropical Ocean
Horizon 2020 (H2020), grant/award no. 818123: Integrated Assessment of Atlantic Marine Ecosystems in Space and Time
Horizon 2020 (H2020), grant/award no. 862626: EuroSea - Improving and Integrating European Ocean Observing and Forecasting Systems for Sustainable use of the Oceans
Seventh Framework Programme (FP7), grant/award no. 264879: Changes in the carbon uptake and emissions by oceans in a changing climate
Sixth Framework Programme (FP6), grant/award no. 511176: Marine carbon sources and sinks assessment
Coverage:
Median Latitude: 17.594293 * Median Longitude: -24.278779 * South-bound Latitude: 17.489600 * West-bound Longitude: -24.387900 * North-bound Latitude: 17.700000 * East-bound Longitude: -24.210000
Date/Time Start: 2006-07-08T00:00:00 * Date/Time End: 2019-12-09T11:49:00
Minimum Elevation: -3647.0 m * Maximum Elevation: 0.0 m
Event(s):
AT08_4-CTD51 * Latitude: 17.590300 * Longitude: -24.251300 * Date/Time: 2008-03-13T22:36:00 * Elevation: -3595.0 m * Location: South Atlantic Ocean * Campaign: ATA08_04 (IFM-GEOMAR/4) * Basis: L Atalante * Method/Device: CTD/Rosette (CTD-RO) * Comment: Deployment
ATA3_40-1 (CTD61) * Latitude: 17.595000 * Longitude: -24.235000 * Date/Time: 2008-02-19T03:11:00 * Elevation: -3600.0 m * Location: South Atlantic Ocean * Campaign: ATA08_03 (IFM-GEOMAR/3) * Basis: L Atalante * Method/Device: CTD/Rosette (CTD-RO)
ISL_00112_1-1 (109434) * Latitude: 17.583930 * Longitude: -24.261600 * Date/Time: 2012-03-23T07:10:00 * Campaign: ISL_00112_1 * Basis: Islandia * Method/Device: CTD/Rosette (CTD-RO)
Comment:
CVOO: Cape Verde Ocean Observatory Project
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventLange, Nico
2Sample code/labelSample labelLange, Nico
3Cruise/expeditionExpeditionLange, Nico
4Station labelStationLange, Nico
5Cast numberCastLange, Nico
6Bottle numberBottleLange, Nico
7DATE/TIMEDate/TimeLange, NicoGeocode
8LATITUDELatitudeLange, NicoGeocode
9LONGITUDELongitudeLange, NicoGeocode
10Pressure, waterPressdbarLange, NicoCTD
11Temperature, waterTemp°CLange, NicoCTD
12SalinitySalLange, NicoCTD
13Quality flag, salinityQF salLange, NicoCTD
14OxygenO2µmol/kgLange, NicoCTD
15Quality flag, oxygenQF O2Lange, NicoCTD
16SalinitySalLange, NicoSalinometer (SALINO)
17Quality flag, salinityQF salLange, NicoSalinometer (SALINO)
18OxygenO2µmol/kgLange, NicoTitration, Winkler
19Quality flag, oxygenQF O2Lange, NicoTitration, Winkler
20NitrateNITRATEµmol/kgLange, Nico
21Quality flag, nitrateQF [NO3]-Lange, Nico
22NitriteNITRITEµmol/kgLange, Nico
23Quality flag, nitriteQF [NO2]-Lange, Nico
24SilicateSILCATµmol/kgLange, Nico
25Quality flag, silicic acidQF Si(OH)4Lange, Nico
26PhosphatePHSPHTµmol/kgLange, Nico
27Quality flag, phosphateQF [PO4]3-Lange, Nico
28Ammonium[NH4]+µmol/kgLange, Nico
29Quality flag, ammoniumQF [NH4]+Lange, Nico
30Carbon, totalTCµmol/kgLange, Nico
31Quality flagQFLange, Nicototal carbon
32Alkalinity, totalATµmol/kgLange, Nico
33Quality flag, alkalinity, totalQF ATLange, Nico
34Carbon, organic, particulatePOCµmol/kgLange, Nico
35Quality flag, carbon, organic, particulateQF POCLange, Nico
36Nitrogen, organic, particulatePONµmol/kgLange, Nico
37Quality flag, nitrogen, organic, particulateQF PONLange, Nico
38Phosphorus, organic, particulatePOPµmol/kgLange, Nico
39Quality flagQFLange, NicoPOP
40Reference of dataRef dataLange, Nico
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 3 (ProcLevel3)
Size:
34378 data points

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