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  • Data  (7)
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  • 1
    Publication Date: 2024-01-29
    Description: In this study we investigated the effect of artificial upwelling with different Si:N ratios on a natural oligotrophic plankton community. Data on primary production, flow cytometry, photophysiology, internal nutrient storage, diatom size, diatom silicification and diatom carbon density from the mesocosms experiment conducted on the Canary Islands in autumn 2019. Values are depth-integrated averages in (mostly) 2-days intervals over the course of 33 days. The upwelling treatment started on day 6. All samples were depth integrated (0-2.5m). Oxygen production and respiration rates were measured through incubations and Winkler titrations. Flow cytometry and photophysiology samples were measured fresh. Parameters used for diatom per capita size, silicification and carbon density measurements were taken from the following published datasets on the same experiment: https://doi.org/10.1594/PANGAEA.954852 and https://doi.org/10.1594/PANGAEA.951417
    Keywords: artificial upwelling; Canarias Sea; carbon dioxide removal; CDRmare; DAM CDRmare - Test-ArtUp: Road testing ocean artificial upwelling; DATE/TIME; Day of experiment; DEPTH, water, experiment; Diatom, cell biovolume; Diatom carbon density; diatoms; Diatoms, biogenic silicate, per cell; Electron transport rate; Event label; Field experiment; Flow cytometry; GC2019; Gross community production/respiration rate, oxygen, ratio; Gross community production of oxygen; KOSMOS; KOSMOS_2019; KOSMOS_2019_Mesocosm-M1; KOSMOS_2019_Mesocosm-M2; KOSMOS_2019_Mesocosm-M3; KOSMOS_2019_Mesocosm-M4; KOSMOS_2019_Mesocosm-M5; KOSMOS_2019_Mesocosm-M6; KOSMOS_2019_Mesocosm-M7; KOSMOS_2019_Mesocosm-M8; KOSMOS Gran Canaria; Maximum photochemical quantum yield of photosystem II; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; Microplankton; Microplankton, forward scatter, per cell; Microplankton, red fluorescence, per cell; Microplankton, total forward scatter; Microplankton, total red fluorescence; Nanoeukaryotes; Nanoplankton, forward scatter, per cell; Nanoplankton, red fluorescence, per cell; Nanoplankton, total forward scatter; Nanoplankton, total red fluorescence; negative emission technology; Net community production of oxygen; Nitrate; Nitrite; Ocean Artificial Upwelling; Ocean-artUp; ocean fertilization; Phase description; Phosphate; photophysiology; Phytoplankton; Picoeukaryotes; plankton community; Research Mission of the German Marine Research Alliance (DAM): Marine carbon sinks in decarbonisation pathways; Respiration rate, oxygen, community; Si:N; Silicate; silicic acid; Sum; Synechococcus; Test-ArtUp; Treatment; Type of study
    Type: Dataset
    Format: text/tab-separated-values, 4925 data points
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2024-03-15
    Keywords: 19-Butanoyloxyfucoxanthin; 1-Iodoethane; 1-Iodopropane; 2-Iodopropane; Algae, biomass as carbon; Algae, fatty acids; Algae abundance; Alkaline phosphatase; Alkalinity, Gran titration (Gran, 1950); Alkalinity, total; Alloxanthin; alpha-Carotene, beta,epsilon-Carotene; Ammonium; Aphanizophyll; Aragonite saturation state; Arctic; Bacteria; Bacteria, biomass as carbon; Bacteria, fatty acids; Bacteria, high DNA fluorescence; Bacteria, low DNA fluorescence; Bacterial/community respiration, oxygen, ratio; Bacterial biomass production of carbon; Bacterial biomass production of carbon, standard deviation; Bacterial production; Bacterial production, standard deviation; beta-Carotene, beta,beta-Carotene; Bicarbonate ion; BIOACID; Biogenic silica; Biological Impacts of Ocean Acidification; Biomass/Abundance/Elemental composition; Bromochloromethane; Bromoiodomethane; Calanus finmarchicus, δ13C; Calcite saturation state; Calculated; Calculated from linear regression; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, particulate; Carbon, organic, dissolved; Carbon, organic, particulate; Carbon, total, particulate; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, flux per mesocosm; Chloroiodomethane; Chlorophyll a; Chlorophyll a, areal concentration; Chlorophyll b; Chlorophyll c1+c2; Chlorophyll c3; Chlorophytes; Cirripedia, larvae, δ13C; Coast and continental shelf; Community composition and diversity; Coulometry; Cryptophytes; Cyanobacteria, biomass per area; DATE/TIME; delta 13C labeling method; Diadinoxanthin; Diatoxanthin; Dibromochloromethane; Dibromomethane; Diiodomethane; Dimethyl sulfide, dissolved; Dimethylsulfoniopropionate; Entire community; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Exudation as determined by 14C DOC production; Exudation as determined by 14C DOC production, standard deviation; Field experiment; Flow cytometry; Fucoxanthin; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Gas chromatography - Mass spectrometry (GC-MS); GC-PFPD; Gross community production of oxygen; Hand-operated CTD (Sea&Sun Technology, CTD 60M); High Performance Liquid Chromatography (HPLC); Identification; Iodomethane; Kongsfjorden-mesocosm; MESO; Mesocosm experiment; Mesocosm or benthocosm; Myxoxanthophyll; Nanoplankton; Neoxanthin; Net community production, standard deviation; Net community production of carbon dioxide; Net community production of oxygen; Nitrate; Nitrite; Nitrogen, organic, dissolved; Nitrogen, organic, particulate; Nitrous oxide; OA-ICC; Ocean Acidification International Coordination Centre; Other metabolic rates; Oxygen; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; Peridinin; pH; Phosphate; Phosphorus, organic, dissolved; Phosphorus, organic, particulate; Phytoplankton, biomass per area; Picophytoplankton; Polar; Prasinoxanthin; Primary production/Photosynthesis; Primary production of POC as determined by 14C POC production; Primary production of POC as determined by 14C POC production, standard deviation; Pulsed flame photometric detector - gas chromatography; Respiration; Respiration, oxygen, bacterial; Respiration, oxygen, bacterial, standard error; Respiration, oxygen, community; Respiration, oxygen, community, standard error; Salinity; Sample comment; Sigmas; Silicon; Svalbard; Temperature, water; Thymidine incorporation; Time, incubation; Transfer velocity, carbon dioxide; Transfer velocity, dimethyl sulfide; Transfer velocity, nitrous oxide; Tribromomethane; Turbidity (Formazin Turbidity Unit); Violaxanthin; Viral abundance; Virus/bacteria ratio; Viruses; Water content of mesocosm; Zeaxanthin; Δδ13C; δ13C, algae; δ13C, bacteria; δ13C, dissolved inorganic carbon; δ13C, dissolved organic carbon; δ13C, particulate organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 35076 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2024-06-12
    Description: This dataset contains hourly-averaged methane dry air mole fractions measured during the year-long Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition from October 2019 to September 2020. This is a merged dataset that combines cross-evaluated measurements performed in the University of Colorado (CU) and Swiss containers on Research Vessel Polarstern, along with cross-evaluated measurements performed on sea ice at Met City, and discrete whole air samples collected for post-cruise analysis at the National Oceanic and Atmospheric Administration (NOAA) Global Monitoring Laboratory (GML). The data columns include the Date and Time in Coordinated Universal Time (UTC), the latitude and longitude of the Research Vessel Polarstern, the methane dry air mole fraction in nmol/mol, and the sampling location.
    Keywords: AIRS; Air sampler; Arctic Ocean; Cavity ring-down greenhouse gas flux analyzer; central Arctic Ocean; CRDGFA; DATE/TIME; FLUX_TOWER; Flux tower; LATITUDE; Location; LONGITUDE; Methane, dry-air mole fraction; Methane concentration; MOSAiC; MOSAiC_ATMOS; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; North Greenland Sea; Polarstern; PS122/1; PS122/1_1-299; PS122/1_1-70; PS122/1_1-75; PS122/1_4-38; PS122/2; PS122/2_14-119; PS122/2_14-202; PS122/2_14-256; PS122/2_20-118; PS122/2_21-131; PS122/2_22-100; PS122/2_23-112; PS122/2_24-91; PS122/3; PS122/3_28-31; PS122/3_28-38; PS122/3_28-7; PS122/3_29-86; PS122/3_31-97; PS122/3_32-99; PS122/3_34-100; PS122/3_34-99; PS122/3_35-123; PS122/3_36-92; PS122/3_37-163; PS122/3_39-138; PS122/3_40-54; PS122/3_41-21; PS122/3_42-51; PS122/4; PS122/4_43-30; PS122/4_43-48; PS122/4_43-74; PS122/4_44-145; PS122/4_45-4; PS122/4_47-106; PS122/4_47-107; PS122/4_50-7; PS122/5; PS122/5_58-117; PS122/5_58-29; PS122/5_58-6; PS122/5_59-477; PS122/5_60-221; PS122/5_61-43; Snow sampler metal; SSM; TGM; Trace gas monitor
    Type: Dataset
    Format: text/tab-separated-values, 16170 data points
    Location Call Number Limitation Availability
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  • 4
    Publication Date: 2024-06-12
    Description: This dataset contains hourly-averaged carbon monoxide dry air mole fractions measured during the year-long Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition from October 2019 to September 2020. This is a merged dataset that combines cross-evaluated measurements performed in the Atmospheric Radiation Measurement (ARM) Program and Swiss containers on the D-deck of Research Vessel Polarstern, along with data from discrete whole air samples collected for post-cruise analysis at the National Oceanic and Atmospheric Administration (NOAA) Global Monitoring Laboratory (GML). The data columns include the Date and Time in Coordinated Universal Time (UTC), the latitude and longitude of the Research Vessel Polarstern, the carbon monoxide dry air mole fraction in nmol/mol, and the sampling location.
    Keywords: Aerosol Observing System; AIRS; Air sampler; AOS; Arctic Ocean; carbon monoxide; Carbon monoxide, dry-air mole fraction; central Arctic Ocean; DATE/TIME; LATITUDE; Location; LONGITUDE; MOSAiC; MOSAiC_ATMOS; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; North Greenland Sea; Polarstern; PS122/1; PS122/1_1-342; PS122/1_1-75; PS122/1_4-38; PS122/2; PS122/2_14-15; PS122/2_14-256; PS122/2_20-118; PS122/2_21-131; PS122/2_22-100; PS122/2_23-112; PS122/2_24-91; PS122/3; PS122/3_28-38; PS122/3_29-86; PS122/3_31-97; PS122/3_32-99; PS122/3_34-100; PS122/3_34-99; PS122/3_35-123; PS122/3_36-92; PS122/3_37-163; PS122/3_39-138; PS122/3_40-54; PS122/3_41-21; PS122/3_42-51; PS122/4; PS122/4_43-127; PS122/4_43-30; PS122/4_44-145; PS122/4_45-4; PS122/4_47-106; PS122/4_47-107; PS122/4_50-7; PS122/5; PS122/5_58-29; PS122/5_59-477; PS122/5_60-221; PS122/5_61-43; Snow sampler metal; SSM; TGM; Trace gas monitor
    Type: Dataset
    Format: text/tab-separated-values, 15740 data points
    Location Call Number Limitation Availability
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  • 5
    Publication Date: 2024-06-12
    Description: This dataset contains hourly-averaged ozone dry air mole fractions measured during the year-long Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition from October 2019 to September 2020. This is a merged dataset that combines cross-evaluated measurements performed in the University of Colorado (CU), the Atmospheric Radiation Measurement (ARM) Program, and Swiss containers onboard Research Vessel Polarstern. The data columns include the Date and Time in Coordinated Universal Time (UTC), the latitude and longitude of the Research Vessel Polarstern, the ozone dry air mole fraction in nmol/mol, and the sampling location.
    Keywords: Aerosol Observing System; AOS; Arctic Ocean; central Arctic Ocean; DATE/TIME; LATITUDE; Location; LONGITUDE; MOSAiC; MOSAiC_ATMOS; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; North Greenland Sea; O3_MONITOR; OZA; ozone; Ozone, dry-air mole fraction; Ozone analyzer; Ozone monitor; Polarstern; PS122/1; PS122/1_1-342; PS122/1_1-54; PS122/1_1-76; PS122/2; PS122/2_14-15; PS122/2_14-167; PS122/2_14-254; PS122/3; PS122/3_28-13; PS122/3_28-35; PS122/4; PS122/4_43-127; PS122/4_43-27; PS122/4_43-60; PS122/5; PS122/5_58-14; PS122/5_58-28
    Type: Dataset
    Format: text/tab-separated-values, 16262 data points
    Location Call Number Limitation Availability
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  • 6
    Publication Date: 2024-06-12
    Description: This dataset contains hourly-averaged carbon dioxide dry air mole fractions measured during the year-long Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition from October 2019 to September 2020. This is a merged dataset that combines cross-evaluated measurements performed in the University of Colorado (CU) and Swiss containers on Research Vessel Polarstern, along with cross-evaluated measurements performed on sea ice at Met City, and discrete whole air samples collected for post-cruise analysis at the National Oceanic and Atmospheric Administration (NOAA) Global Monitoring Laboratory (GML). This merged dataset is recommended for further use by the community. The data columns include the Date and Time in Coordinated Universal Time (UTC), the latitude and longitude of the Research Vessel Polarstern, the carbon dioxide dry air mole fraction in µmol/mol, and the sampling location.
    Keywords: AIRS; Air sampler; Arctic Ocean; carbon dioxide; Carbon dioxide, dry-air mole fraction; Cavity ring-down greenhouse gas flux analyzer; central Arctic Ocean; CRDGFA; DATE/TIME; FLUX_TOWER; Flux tower; LATITUDE; Location; LONGITUDE; MOSAiC; MOSAiC_ATMOS; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; North Greenland Sea; Polarstern; PS122/1; PS122/1_1-299; PS122/1_1-70; PS122/1_1-75; PS122/1_4-38; PS122/2; PS122/2_14-119; PS122/2_14-202; PS122/2_14-256; PS122/2_20-118; PS122/2_21-131; PS122/2_22-100; PS122/2_23-112; PS122/2_24-91; PS122/3; PS122/3_28-31; PS122/3_28-38; PS122/3_28-7; PS122/3_29-86; PS122/3_31-97; PS122/3_32-99; PS122/3_34-100; PS122/3_34-99; PS122/3_35-123; PS122/3_36-92; PS122/3_37-163; PS122/3_39-138; PS122/3_40-54; PS122/3_41-21; PS122/3_42-51; PS122/4; PS122/4_43-30; PS122/4_43-48; PS122/4_43-74; PS122/4_44-145; PS122/4_45-4; PS122/4_47-106; PS122/4_47-107; PS122/4_50-7; PS122/5; PS122/5_58-117; PS122/5_58-29; PS122/5_58-6; PS122/5_59-477; PS122/5_60-221; PS122/5_61-43; Snow sampler metal; SSM; TGM; Trace gas monitor
    Type: Dataset
    Format: text/tab-separated-values, 15230 data points
    Location Call Number Limitation Availability
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  • 7
    Publication Date: 2024-06-13
    Description: Ocean Alkalinity Enhancement (OAE) could augment long-term carbon storage and mitigate ocean acidification by increasing the bicarbonate ion concentration in ocean water. However, the side effects and/or potential co-benefits of OAE on natural planktonic communities remain poorly understood. To address this knowledge gap, 9 mesocosms were deployed in the oligotrophic waters of Gran Canaria, from September 14th to October 16th, 2021. A CO2-equilibrated Total Alkalinity (TA) gradient was employed in increments of 300 µmol·L-1, ranging from ~2400 to ~4800 µmol·L-1. The carbonate chemistry conditions in terms of TA and Dissolved Inorganic Carbon (DIC), which were then used to calculate pCO2 and pH, and the nitrate+nitrite, phosphate and silicate concentrations were measured every two days over the course of the 33-day experiment alongside the following biotic parameters. Net Community Production (NCP), Gross Production (GP), Community Respiration (CR) rates, as well as the metabolic balance (GP:CR), were monitored every two days through oxygen production and consumption using the winkler method. Fractionated 14C uptake and chlorophyll a were also determined every four days although, initially, the total PO14C and DO14C production were also measured every 4 days, in between, up to day 13. Finally, flow cytometry was also carried out every two days and synecococcus, picoeukaryote and nanophytoplankton abundances were obtained. No damaging effect of CO2-equilibrated OAE in the range applied here, on phytoplankton primary production, community metabolism and composition could be inferred from our results. In fact, a potential co-benefit to OAE was observed in the form of the positive curvilinear response to the DIC gradient up to the ∆TA1800 treatment. Further experimental research at this scale is key to gain a better understanding of the short and long-term effects of OAE on planktonic communities.
    Keywords: 14C-DOC; 14C-POC; 14C uptake; AQUACOSM; Canarias Sea; Chlorophyll a, total; chlorophyll-a concentration; Chlorophyll a microplankton; Chlorophyll a nanoplankton; Chlorophyll a picoplankton; DATE/TIME; Day of experiment; Depth, water, experiment, bottom/maximum; Depth, water, experiment, top/minimum; Event label; Extracellular release; Field experiment; flow cytometry; Flow cytometry; Gross community production/respiration rate, oxygen, ratio; Gross community production of oxygen; Identification; KOSMOS_2021; KOSMOS_2021_Mesocosm-M1; KOSMOS_2021_Mesocosm-M2; KOSMOS_2021_Mesocosm-M3; KOSMOS_2021_Mesocosm-M4; KOSMOS_2021_Mesocosm-M5; KOSMOS_2021_Mesocosm-M6; KOSMOS_2021_Mesocosm-M7; KOSMOS_2021_Mesocosm-M8; KOSMOS_2021_Mesocosm-M9; KOSMOS Gran Canaria; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; Nanoeukaryotes; Net community production of oxygen; Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean; Ocean-based Negative Emission Technologies; OceanNETs; Picoeukaryotes; primary production; Primary production of carbon, organic, dissolved; Primary production of carbon, organic, particulate; Primary production of carbon, organic, total; Respiration rate, oxygen, community; Synechococcus; Treatment: alkalinity, total; Type of study; Winkler oxygen
    Type: Dataset
    Format: text/tab-separated-values, 3828 data points
    Location Call Number Limitation Availability
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