Thielecke, Antonia; Ludwig, Andrea; Riebesell, Ulf (2023): KOSMOS 2020 Peru mesocosm study on ecosystem responses to different light and upwelling intensities: CTD data [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.961213
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Published: 2023-11-06 • DOI registered: 2023-12-06
Abstract:
This data is part of the BMBF project CUSCO (Coastal Upwelling Systems in a Changing Ocean). Here we report the environmental conditions during a 35-day experiment, where we enclosed natural plankton communities in in-situ mesocosms off Peru. The experiment investigated the interactive effects of light and upwelling on the Humboldt upwelling ecosystem by mimicking a gradient of upwelling intensities (0%, 15%, 30%, 45% and 60%) under summer-time high light and winter-time low light. CTD casts were taken between 0 and 12.5m with a CTD167M sensor system (Sea&Sun Technology, Trappenkamp, Germany) to generate depth profiles of conductivity, salinity, density, pH, temperature and photosynthetically active radiation (PAR) as well as oxygen, hydrogen sulphide and Chla concentrations (sensors described in (Schulz and Riebesell, 2013; Bach et al., 2016; doi:10.1007/s00227-012-1965-y, doi:10.1002/2016GB005372). The water sampling and CTD casts of the Pacific took place in the mesocosm field.
Supplement to:
Thielecke, Antonia; Fernández-Méndez, Mar; Arístegui, Javier; Baumann, Moritz; Behncke, Jacqueline; Berger, Stella A; Dausmann, Veit; Georgieva, Silvia; Goldenberg, Silvan Urs; Gomez-Saez, Gonzalo V; Graco, Michelle; Heene, Toralf; Kittu, Leila; Krause, Jeffrey W; Ludwig, Andrea; Meyer, Jana; Mohrholz, Volker; Nejstgaard, Jens Christian; Ortiz Cortes, Joaquin; Schulz, Kai Georg; Smith, Alexandra; Spilling, Kristian; Sswat, Michael; Taucher, Jan; Vanharanta, Mari; Varmanen, Pia; Riebesell, Ulf (2025): Disentangling upwelling: how light and nutrient supply shape primary producers and stoichiometry in the Humboldt upwelling system. Deep Sea Research Part II: Topical Studies in Oceanography, 223, 105522, https://doi.org/10.1016/j.dsr2.2025.105522
Project(s):
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0813A: Küstennahe Auftriebsgebiete CUSCO: Auswirkungen geänderter Auftriebsintensitäten auf Struktur, Funktion und Produktivität pelagischer Nahrungsnetze im peruanischen Humboldt-Auftriebsgebiet
Coverage:
Median Latitude: -12.055329 * Median Longitude: -77.235145 * South-bound Latitude: -12.056130 * West-bound Longitude: -77.235644 * North-bound Latitude: -12.054690 * East-bound Longitude: -77.234677
Date/Time Start: 2020-02-25T07:08:42 * Date/Time End: 2020-04-02T10:38:02
Minimum DEPTH, water: 0.30 m * Maximum DEPTH, water: 11.93 m
Event(s):
KOSMOS_2020_Mesocosm-M1 * Latitude: -12.054828 * Longitude: -77.235211 * Date/Time Start: 2020-02-28T00:00:00 * Date/Time End: 2020-04-02T00:00:00 * Campaign: KOSMOS_2020 (KOSMOS Peru) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2020_Mesocosm-M2 * Latitude: -12.054690 * Longitude: -77.234944 * Date/Time Start: 2020-02-28T00:00:00 * Date/Time End: 2020-04-02T00:00:00 * Campaign: KOSMOS_2020 (KOSMOS Peru) * Method/Device: Mesocosm experiment (MESO)
KOSMOS_2020_Mesocosm-M3 * Latitude: -12.054725 * Longitude: -77.234677 * Date/Time Start: 2020-02-28T00:00:00 * Date/Time End: 2020-04-02T00:00:00 * Campaign: KOSMOS_2020 (KOSMOS Peru) * Method/Device: Mesocosm experiment (MESO)
Comment:
Mesocosm 10 describes the control sample from the Pacific
CTD data was subset to only include values between 0.3 and 12m to remove disturbances at the surface and near the sediment trap.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Type of study | Study type | Thielecke, Antonia | |||
| 2 | Event label | Event | Thielecke, Antonia | |||
| 3 | Mesocosm label | Meso label | Thielecke, Antonia | |||
| 4 | Treatment: light condition | T:light | Thielecke, Antonia | summer-time high light (HL) and winter-time low light (LL) | ||
| 5 | Treatment | Treat | Thielecke, Antonia | upwelling intensity in % | ||
| 6 | Treatment | Treat | Thielecke, Antonia | |||
| 7 | Identification | ID | Thielecke, Antonia | dataset | ||
| 8 | Day of experiment | DOE | day | Thielecke, Antonia | ||
| 9 | DATE/TIME | Date/Time | Thielecke, Antonia | Geocode | ||
| 10 | DEPTH, water | Depth water | m | Thielecke, Antonia | Geocode | |
| 11 | Pressure, water | Press | dbar | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) | |
| 12 | Conductivity | Cond | mS/cm | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) | |
| 13 | Temperature, water | Temp | °C | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) | |
| 14 | Salinity | Sal | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) | PSU | |
| 15 | Density, sigma-theta (0) | Sigma-theta | kg/m3 | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) | |
| 16 | pH | pH | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) | temperature corrected | |
| 17 | Oxygen, dissolved | DO | mg/l | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) | |
| 18 | Oxygen saturation | O2 sat | % | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) | |
| 19 | Chlorophyll a | Chl a | µg/l | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) | |
| 20 | Radiation, photosynthetically active | PAR | µE/m2/s | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) | |
| 21 | Battery, voltage | Ubat | V | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) | |
| 22 | Hydrogen sulfide | H2S | mg/l | Thielecke, Antonia | Hand-operated CTD (Sea&Sun Technology, CTD 167M) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2505891 data points
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