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Paul, Allanah Joy; Sánchez, Nicolás; Haunost, Mathias; Schneider, Julieta (2024): KOSMOS 2021 Gran Canaria mesocosm study on ocean alkalinity enhancement: water column biogeochemistry and pigments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.966941

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Abstract:
This data was collected as a part of a mesocosm study to investigate the ecosystem impacts of ocean alkalinity enhancement, within the EU H2020 OceanNETs project. Nine mesocosms were deployed in Taliarte Harbour (Gran Canaria, Spain) and were regularly sampled using integrated water samplers between 10th September-25th October 2021. A gradient design was used in this experiment with a total of nine different alkalinity concentrations. Seawater alkalinity ranged between ambient (0 µeq kg-1 added alkalinity, OAE0) and 2400 µeq kg-1 additional alkalinity (OAE2400). The alkalinity levels increased in equal intervals of 300 µeq kg-1 across nine mesocosms (OAE0, OAE300, OAE600, OAE900, OAE1200, OAE1500, OAE1800, OAE2100, OAE2400). This data set contains water column biogeochemistry variables (inorganic nutrients, carbonate chemistry, particulate matter) as well as pigment concentrations from these nine mesocosms.
Keyword(s):
Carbonate chemistry; carbon dioxide removal; mesocosm experiment; nutrients; ocean alkalinity enhancement; particulate matter; pigments
Funding:
Horizon 2020 (H2020), grant/award no. 869357: OceanNETs: Ocean-based Negative Emission Technologies
Coverage:
Latitude: 27.990000 * Longitude: -15.368888
Date/Time Start: 2021-09-11T00:00:00 * Date/Time End: 2021-10-13T00:00:00
Event(s):
KOSMOS_2021_Mesocosm-M1 * Latitude: 27.990000 * Longitude: -15.368888 * Date/Time Start: 2021-09-11T00:00:00 * Date/Time End: 2021-10-25T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2021 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2021_Mesocosm-M2 * Latitude: 27.990000 * Longitude: -15.368888 * Date/Time Start: 2021-09-11T00:00:00 * Date/Time End: 2021-10-25T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2021 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2021_Mesocosm-M3 * Latitude: 27.990000 * Longitude: -15.368888 * Date/Time Start: 2021-09-11T00:00:00 * Date/Time End: 2021-10-25T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2021 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
Comment:
values marked with ? = questionable value i.e. potential sample contamination, or analytical issues
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Type of studyStudy typePaul, Allanah Joy
2Event labelEventPaul, Allanah Joy
3DATE/TIMEDate/TimePaul, Allanah JoyGeocode
4Day of experimentDOEdayPaul, Allanah Joy
5Mesocosm labelMeso labelPaul, Allanah Joy
6Treatment: alkalinity, totalT:ATµeq/kgPaul, Allanah Joytarget AT additions (delta AT)
7Depth, water, experiment, top/minimumDepth water exp topmPaul, Allanah Joydepth-integrated samples
8Depth, water, experiment, bottom/maximumDepth water exp maxmPaul, Allanah Joydepth-integrated samples
9SalinitySalPaul, Allanah Joyaverage for depth range 0.5 - 3 dbar
10Carbon, inorganic, dissolvedDICµmol/kgSchneider, Julietaseawater
11Alkalinity, totalATµmol/kgSchneider, Julietaseawater
12pHpHPaul, Allanah JoyCalculatedseawater scale
13Carbon dioxide, partial pressurepCO2µatmPaul, Allanah JoyCalculated
14Bicarbonate ion[HCO3]-µmol/kgPaul, Allanah JoyCalculatedseawater
15Carbonate ion[CO3]2-µmol/kgPaul, Allanah JoyCalculatedseawater
16Carbon dioxideCO2µmol/kgPaul, Allanah JoyCalculatedseawater
17Calcite saturation stateOmega CalPaul, Allanah JoyCalculated
18Aragonite saturation stateOmega ArgPaul, Allanah JoyCalculated
19Silica, dissolvedDSiµmol/lPaul, Allanah JoySpectrophotometer (SPEC)values marked with # = n=2
20Nitrate and Nitrite[NO3]- + [NO2]-µmol/lPaul, Allanah JoySpectrophotometer (SPEC)
21Phosphate[PO4]3-µmol/lPaul, Allanah JoySpectrophotometer (SPEC)
22Carbon, total, particulateTPCµmol/lSánchez, Nicolás
23Carbon, organic, particulatePOCµmol/lSánchez, Nicolásacidified
24Carbon, inorganic, particulatePICµmol/lSánchez, NicolásCalculated
25Nitrogen, organic, particulatePONµmol/lSánchez, Nicolásacidified
26δ15N, total particulate nitrogenδ15N TPN‰ airSánchez, NicolásMass spectrometer (MSPEC)average of TPN and PON d15N values
27Phosphorus, organic, particulatePOPµmol/lPaul, Allanah JoySpectrophotometer (SPEC)
28Biogenic silicabSiO2µmol/lPaul, Allanah JoySpectrophotometer (SPEC)values marked with # = below analytical detection limit
29Chlorophyll c3Chl c3ng/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
30Chlorophyll c2Chl c2ng/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
31PeridininPeridng/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)total
3219-ButanoyloxyfucoxanthinBut-fucong/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
33FucoxanthinFucong/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
34NeoxanthinNeong/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
35PrasinoxanthinPrasng/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
36ViolaxanthinViolang/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
3719-HexanoyloxyfucoxanthinHex-fucong/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
38AlloxanthinAllong/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
39ZeaxanthinZeang/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
40Chlorophyll bChl bng/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
41Chlorophyll a, totalTChl ang/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)
42Divinyl chlorophyll aDV chl ang/lHaunost, MathiasHigh Performance Liquid Chromatography (HPLC)total
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
6540 data points

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