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  • Data  (9)
  • 1995-1999  (9)
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  • 1
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    Iron and aluminium and hydrogen peroxide measured on water bottle samples during Marion Dufresne cruise ANTARES-II (1997)
    PANGAEA
    In:  Supplement to: Sarthou, Géraldine; Jeandel, Catherine; Brisset, Laurence; Amouroux, David; Besson, Thierry; Donard, Olivier F X (1997): Fe and H2O2 distributions in the upper water column in the Indian sector of the Southern Ocean. Earth and Planetary Science Letters, 147(1-4), 83-92, https://doi.org/10.1016/S0012-821X(97)00004-6
    Details
    Publication Date: 2024-02-01
    Description: Total dissolvable iron (TDFe), particulate iron (PFe) and hydrogen peroxide (H2O2 measurements were performed along a N-S transect in the upper 250 m in the Southern Ocean (62°00E/66°42S - 49°00S, ANTARES II cruise, February 1994). TDFe was organically extracted (APDC/DDDC-chloroform) and analysed by Graphite Furnace Atomic Absorption Spectrometry (GFAAS), PFe was analysed by GFAAS following a strong mixed-acid leach, and H2O2 was analysed on board by fluorometry. The respective detection limits are equal to 0.13 nmol/kg, 0.02 nmol/kg, and 3.0 nmol/kg. TDFe concentrations vary from 0.4 to 6.2 nmol/kg and profiles are not completely depleted in the surface. PFe concentrations vary from 0.02 to 0.2 nmol/kg. Iron/carbon (Fe/C) uptake ratios for phytoplankton were calculated either from seawater or particle measurements. They are variable along the transect but are consistent when they could be compared. All the observed ratios are within the range of values proposed for the Fe/C uptake ratios by phytoplankton. Using our uptake ratio calculated in the Permanent Open Ocean Zone (4 x 10**?6 mol/mol), we estimate that the primary production which can be supported by the iron input flux into the surface waters is two times higher than the measured primary production in the same area. In the surface waters, H2O2 concentrations vary from 5.0 to 19.7 nmol/kg. Such low concentrations are due to strong vertical mixing, low dissolved organic matter concentrations and the latitude of the site.
    Keywords: Biogeochemical Processes in the Oceans and Fluxes; JGOFS; Joint Global Ocean Flux Study; PROOF
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Particulate iron and aluminum measured on water bottle samples during Marion Dufresne cruise ANTARES-II (1997)
    PANGAEA
    Details
    Publication Date: 2024-02-01
    Keywords: Aluminium, particulate; ANTARES-II; ANTARES-II_A01; ANTARES-II_A04; ANTARES-II_A06; ANTARES-II_A08; ANTARES-II_A14; ANTARES-II_A18; Biogeochemical Processes in the Oceans and Fluxes; DEPTH, water; Event label; Iron, particulate; JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; Marion Dufresne (1972); MD78; OCE; Oceanography; PROOF
    Type: Dataset
    Format: text/tab-separated-values, 14 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Distribution of diatoms at time series station KERFIX (1998)
    PANGAEA
    Details
    Publication Date: 2024-02-01
    Keywords: Asteromphalus heptactis; Asteromphalus hookeri; Asteromphalus hyalinus; Asteromphalus parvulus; Azpeitia tabularis; Biogeochemical Processes in the Oceans and Fluxes; Calculated; Chaetoceros bulbosus; Chaetoceros criophilus; Chaetoceros dichaeta; Chaetoceros simplex/socialis; Chaetoceros spp. resting spores; Chaetoceros spp. vegetative cells; Corethron criophilum; Coscinodiscus curvatulus; Coscinodiscus marginatus; Counting, diatoms; Dactyliosolen antarcticus; DATE/TIME; Date/time end; DEPTH, water; Diatom valves, flux; Distephanus speculum speculum; Duration, number of days; Eucampia antarctica, resting spores; Eucampia antarctica, vegetativ; Fragilariopsis bicapitata; Fragilariopsis kerguelensis; Fragilariopsis panduriformis; Fragilariopsis pseudonana; Fragilariopsis rhombica; Fragilariopsis ritscheri; Fragilariopsis separanda; Fragilariopsis seriata; JGOFS; Joint Global Ocean Flux Study; KERFIX; Kerguelen; MOOR; Mooring; Navicula directa; Pleurosigma directum; Porosira glacialis; Porosira pseudodenticulata; Proboscia inermis; PROOF; Pseudo-nitzschia heimii; Pseudo-nitzschia lineola; Rhizosolenia antennata forma semispina; Rhizosolenia hebetata forma hebetata; Sample code/label; Thalassionema nitzschioides; Thalassionema nitzschioides var. parva; Thalassiosira gracilis; Thalassiosira gravida; Thalassiosira lentiginosa; Thalassiosira oestrupii var. venrickae; Thalassiosira oliverana; Thalassiosira tumida; Thalassiothrix antarctica; Time-series station; Tropidoneis antarctica
    Type: Dataset
    Format: text/tab-separated-values, 1754 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    (Table 1) Mass and organic cabon fluxes at time series station KERFIX (1998)
    PANGAEA
    Details
    Publication Date: 2024-02-01
    Keywords: Alkenone, flux; Alkenone, per unit mass total organic carbon; Alkenone, unsaturation index UK'37; Alkenone per unit sediment mass; Biogeochemical Processes in the Oceans and Fluxes; Calculated from C37 alkenones (Prahl & Wakeham, 1987); Carbon, organic, flux; DATE/TIME; Date/time end; DEPTH, water; Duration, number of days; JGOFS; Joint Global Ocean Flux Study; KERFIX; Kerguelen; MOOR; Mooring; n-Alkane, flux; n-Alkane, per unit mass total organic carbon; n-Alkane sum; PROOF; Sample code/label; Sterol, flux; Sterols, per unit mass total organic carbon; Sterols per unit sediment mass; Time-series station; Total mass, flux per day
    Type: Dataset
    Format: text/tab-separated-values, 147 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Nutrients at time series station KERFIX (1998)
    PANGAEA
    In:  Supplement to: Jeandel, Catherine; Ruiz-Pino, Diana; Gjata, Elvis; Poisson, Alain; Brunet, Christian; Charriaud, Edwige; Dehairs, Frank; Delille, Daniel; Fiala, Michel; Fravalo, Charles; Miquel, Juan Carlos; Park, Young-Hyang; Pondaven, Philippe; Quéguiner, Bernard; Razouls, Suzanne; Shauer, Bernard; Tréguer, Paul (1998): KERFIX, a time-series station in the Southern Ocean: a presentation. Journal of Marine Systems, 17(1-4), 555-569, https://doi.org/10.1016/S0924-7963(98)00064-5
    Details
    Publication Date: 2024-02-01
    Description: Between January 1990 and March 1995, the research project KERFIX undertook the first regular noncoastal multiyear acquisition of parameters related to the carbon cycle in the Southern Ocean at a time series station located at 50°40' S-68°25' E, 60 miles southwest of the Kerguelen Islands. The objectives of KERFIX are (1) to monitor the ocean/atmosphere CO2 and O2 exchanges and to understand which processes govern these exchanges (2) to observe and interpret the seasonal and interannual variability of the production, flux, decomposition and dissolution of carbon and associated elements at this location. In addition, micropaleontological studies describe the present and past flux dynamics in this oceanic area, to improve the knowledge of the transfer functions of some oceanographic proxies. This paper presents a survey of the KERFIX program: scientific objectives, organization of the field operations and some main results obtained since the beginning of KERFIX program, as well as the results of the temporal evolution of hydrological, chemical and biological parameters.
    Keywords: Biogeochemical Processes in the Oceans and Fluxes; Bottle, Niskin; JGOFS; Joint Global Ocean Flux Study; KERFIX; KERFIX_19900127; KERFIX_19900221; KERFIX_19900330; KERFIX_19900426; KERFIX_19900630; KERFIX_19900730; KERFIX_19901218; KERFIX_19910127; KERFIX_19910301; KERFIX_19910404; KERFIX_19910515; KERFIX_19910610; KERFIX_19910712; KERFIX_19910818; KERFIX_19910913; KERFIX_19911026; KERFIX_19911217; KERFIX_19920113; KERFIX_19920218; KERFIX_19920311; KERFIX_19920411; KERFIX_19920501; KERFIX_19920611; KERFIX_19920703; KERFIX_19920811; KERFIX_19920917; KERFIX_19921016; KERFIX_19921124; KERFIX_19921217; KERFIX_19930130; KERFIX_19930312; KERFIX_19930406; KERFIX_19930515; KERFIX_19930610; KERFIX_19930716; KERFIX_19930817; KERFIX_19930916; KERFIX_19931027; KERFIX_19931128; KERFIX_19931227; KERFIX_19940118; KERFIX_19940206; KERFIX_19940314; KERFIX_19940417; KERFIX_19940512; KERFIX_19940612; KERFIX_19940709; KERFIX_19940829; KERFIX_19941017; KERFIX_19941107; KERFIX_19941208; KERFIX_19950108; KERFIX_19950227; KERFIX_19950320; Kerguelen; MOOR; Mooring; NIS; ORFOIS; Origin and Fate of Biogenic Particle Fluxes in the Ocean; PROOF; Silicon Cycling in the World Ocean; SINOPS; Time-series station
    Type: Dataset
    Format: application/zip, 8 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Hydrocarbons, sterols and alkenones at time series station KERFIX (1998)
    PANGAEA
    In:  Supplement to: Ternois, Yann; Sicre, Marie-Alexandrine; Boireau, Anne; Beaufort, Luc; Miquel, Juan Carlos; Jeandel, Catherine (1998): Hydrocarbons, sterols and alkenones in sinking particles in the Indian Ocean sector of the Southern Ocean. Organic Geochemistry, 28(7-8), 489-501, https://doi.org/10.1016/S0146-6380(98)00008-4
    Details
    Publication Date: 2024-02-01
    Description: Hydrocarbons, sterols and alkenones were analyzed in samples collected from a 10 month sediment trap time series deployed in the Indian Ocean sector of the Southern Ocean. Fluxes and within-class distributions varied seasonally. During higher mass and organic carbon (OC) flux periods, which occurred in austral summer and fall, fresh marine inputs were predominant. Vertical fluxes were most intense in January, but limited to one week in duration. They were, however, low compared with other oceanic regions. In contrast, low mass and OC flux periods were characterized by a strong unresolved complex mixture (UCM) in the hydrocarbon fraction and a high proportion of stanols as a result of zooplanktonic grazing. Terrigenous inputs were not detectable. The alkenone compositions were consistent with previous data on suspended particles from Antarctic waters. However, UK'37 values diverged from the linear and exponential fits established by Sikes et al. (1997, doi:10.1016/S0016-7037(97)00017-3) in the low temperature range. The seasonal pattern of alkenone production implied that IPT (integrated production temperature) is likely to be strongly imprinted by austral summer and fall SST (sea surface temperature).
    Keywords: Biogeochemical Processes in the Oceans and Fluxes; JGOFS; Joint Global Ocean Flux Study; KERFIX; Kerguelen; MOOR; Mooring; PROOF; Time-series station
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    (Table 2) Concentrations of individual sterols at time series station KERFIX (1998)
    PANGAEA
    Details
    Publication Date: 2024-02-01
    Keywords: 24-Ethyl-5alpha-cholest-22-en-3beta-ol per unit sediment mass; 24-Ethyl-5alpha-Cholestan-3beta-ol per unit sediment mass; 24-Ethylcholest-5-en-3beta-ol per unit sediment mass; 24-Ethylcholesta-5,22E-dien-3beta-ol per unit sediment mass; 24-Methyl-5alpha-cholesta-22-en-3beta-ol per unit sediment mass; 24-Methyl-5alpha-cholestan-3beta-ol per unit sediment mass; 24-Methylcholest-5-en-3beta-ol per unit sediment mass; 24-Nor-24-methylcholesta-5,22E-dien-3beta-ol per unit sediment mass; 24-Nor-5a-cholest-22-en-3beta-ol per unit sediment mass; 24-Norcholesta-5,22-dien-3beta-ol per unit sediment mass; 5alpha-cholest-22-en-3beta-ol per unit sediment mass; 5alpha-Cholestan-3beta-ol per unit sediment mass; Biogeochemical Processes in the Oceans and Fluxes; Cholest-5-en-3beta-ol per unit sediment mass; Cholesta-5,22E-dien-3beta-ol per unit sediment mass; DATE/TIME; Date/time end; DEPTH, water; Duration, number of days; JGOFS; Joint Global Ocean Flux Study; KERFIX; Kerguelen; MOOR; Mooring; PROOF; Sample code/label; Time-series station
    Type: Dataset
    Format: text/tab-separated-values, 198 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    Hydrogen peroxide and total dissolvable iron measured on water bottle samples during Marion Dufresne cruise ANTARES-II (MD78) (1997)
    PANGAEA
    Details
    Publication Date: 2024-02-01
    Keywords: ANTARES-II; ANTARES-II_A01; ANTARES-II_A04; ANTARES-II_A06; ANTARES-II_A08; ANTARES-II_A10; ANTARES-II_A14; ANTARES-II_A18; Biogeochemical Processes in the Oceans and Fluxes; Date/Time of event; DEPTH, water; Event label; Hydrogen peroxide, water; Iron, soluble; JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; Marion Dufresne (1972); MD78; OCE; Oceanography; PROOF; Salinity; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 197 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 9
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    Flux of organic matter at time series station KERFIX (1998)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Keywords: Aluminium, flux; Barium, flux; Biogeochemical Processes in the Oceans and Fluxes; Calcium, flux; Calculated from dry weight/volume; Carbon, organic, particulate, flux; DATE/TIME; Date/time end; DEPTH, water; Duration, number of days; Flux of total mass; JGOFS; Joint Global Ocean Flux Study; KERFIX; Kerguelen; MOOR; Mooring; Nitrogen, total, flux; PROOF; Sample code/label; Strontium, flux; Time-series station; δ13C, organic carbon; δ15N, organic matter
    Type: Dataset
    Format: text/tab-separated-values, 391 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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