Baumann, Moritz; Goldenberg, Silvan Urs; Taucher, Jan; Fernández-Méndez, Mar; Ortiz Cortes, Joaquin; Haussmann, Jaqueline; Riebesell, Ulf (2023): KOSMOS mesocosm experiment Gran Canaria 2019 on testing the effect of nutrient composition (Si:N) during artificial upwelling: export flux and sinking particle properties [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.956371
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Abstract:
Export data from the mesocosm experiment conducted in the Canary Islands in autumn 2019. Sinking matter was collected in 2-days intervals over the course of 33 days from the mesocosm sediment traps (4 m depth). Sediment samples were processed and subsampled for duplicate measurements of particulate organic carbon (POC), nitrogen (PON), phosphorus (POP) and biogenic silica (BSi). Elemental mass fluxes in µmol L-1 were calculated by normalizing to the mesocosm volume. They were then either normalized to the time between sample collection (48 h) to obtain daily mass fluxes (µmol L-1 d-1), or added up to obtain cumulative mass fluxes (µmol L-1). Another set of sediment subsamples was analyzed for particle sinking velocities, sizes and porosities (bidaily) and microbial remineralization rates (every 4 days).
Keyword(s):
Supplement to:
Baumann, Moritz; Goldenberg, Silvan Urs; Taucher, Jan; Fernández-Méndez, Mar; Ortiz Cortes, Joaquin; Haussmann, Jaqueline; Riebesell, Ulf (2023): Counteracting effects of nutrient composition (Si:N) on export flux under artificial upwelling. Frontiers in Marine Science, 10, 1181351, https://doi.org/10.3389/fmars.2023.1181351
Project(s):
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0897A: DAM CDRmare - TestArtUp, GEOMAR
Horizon 2020 (H2020), grant/award no. 731065: Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean
Coverage:
Latitude: 27.989900 * Longitude: -15.368800
Date/Time Start: 2019-09-07T00:00:00 * Date/Time End: 2019-12-09T00:00:00
Minimum DEPTH, water, experiment: 4 m * Maximum DEPTH, water, experiment: 4 m
Event(s):
KOSMOS_2019_Mesocosm-M1 * Latitude: 27.989900 * Longitude: -15.368800 * Date/Time Start: 2019-09-07T00:00:00 * Date/Time End: 2019-10-09T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2019 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2019_Mesocosm-M2 * Latitude: 27.989900 * Longitude: -15.368800 * Date/Time Start: 2019-09-07T00:00:00 * Date/Time End: 2019-10-09T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2019 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2019_Mesocosm-M3 * Latitude: 27.989900 * Longitude: -15.368800 * Date/Time Start: 2019-09-07T00:00:00 * Date/Time End: 2019-10-09T00:00:00 * Location: Canarias Sea * Campaign: KOSMOS_2019 (KOSMOS Gran Canaria) * Method/Device: Mesocosm experiment (MESO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Baumann, Moritz | |||
| 2 | DATE/TIME | Date/Time | Baumann, Moritz | Geocode | ||
| 3 | Day of experiment | DOE | day | Baumann, Moritz | ||
| 4 | Treatment | Treat | Baumann, Moritz | Si:N: upwelling treatment with varying Si:N ratios in deep water | ||
| 5 | Treatment | Treat | Baumann, Moritz | Si* [µmol/L]: upwelling treatment expressed as concentration difference Si*=[Si]-[N] in the deep water | ||
| 6 | Mesocosm label | Meso label | Baumann, Moritz | Mesocosm: independent experimental unit of ~8m3 | ||
| 7 | Phase description | Phase descr | Baumann, Moritz | experimental phase with 0 = oligotrophic baseline, I = initial response to upwelling treatment, II = longer-term response to upwelling treatment | ||
| 8 | DEPTH, water, experiment | Depth water exp | m | Baumann, Moritz | Geocode | |
| 9 | Carbon, organic, particulate, flux per day | POC flux | µmol/l/day | Baumann, Moritz | ||
| 10 | Biogenic silica, flux per day | bSiO2 flux | µmol/l/day | Baumann, Moritz | ||
| 11 | Nitrogen, organic, particulate, flux per day | PON flux | µmol/l/day | Baumann, Moritz | ||
| 12 | Phosphorus, organic, particulate, flux per day | POP flux | µmol/l/day | Baumann, Moritz | ||
| 13 | Carbon/Nitrogen, molar ratio | C/N | Baumann, Moritz | exported | ||
| 14 | Silicon/Nitrogen, molar ratio | Si/N | Baumann, Moritz | exported | ||
| 15 | Nitrogen/Phosphorus, molar ratio | N/P | Baumann, Moritz | exported | ||
| 16 | Carbon, organic, particulate, flux, cumulative | POC flux cum | µmol/l | Baumann, Moritz | ||
| 17 | Biogenic silica, flux, cumulative | bSiO2 flux cum | µmol/l | Baumann, Moritz | ||
| 18 | Nitrogen, organic, particulate, flux, cumulative | PON flux cum | µmol/l | Baumann, Moritz | ||
| 19 | Phosphorus, organic, particulate, flux, cumulative | POP flux cum | µmol/l | Baumann, Moritz | ||
| 20 | Biogenic silica, weight fraction | bSiO2 frac | Baumann, Moritz | |||
| 21 | Remineralisation rate of carbon per day | C rem | 1/day | Baumann, Moritz | ||
| 22 | Sinking velocity | Sinking V | m/day | Baumann, Moritz | Size fraction 40-100 µm | |
| 23 | Sinking velocity | Sinking V | m/day | Baumann, Moritz | Size fraction 100-250 µm | |
| 24 | Sinking velocity | Sinking V | m/day | Baumann, Moritz | Size fraction 250-1000 µm | |
| 25 | Sinking velocity | Sinking V | m/day | Baumann, Moritz | of the fastest 10 % of sinking particles | |
| 26 | Equivalent spherical diameter | ESD | µm | Baumann, Moritz | equivalent spherical diameter (i.e. size) of the fastest 10 % of sinking particles | |
| 27 | Particle porosity | Particle poros | Baumann, Moritz | porosity (i.e. compactness) of the fastest 10 % of sinking particles |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3164 data points
Download Data
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