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  • 2020-2024  (2)
  • 1995-1999  (94)
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  • 1
    Keywords: Forschungsbericht ; Nordsee ; Ostsee ; Küstenforschung
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (19 Seiten, 438,38 KB) , Diagramme
    Language: German
    Note: Förderkennzeichen BMBF 03F0766A+B , Verbundnummer 01174838 , Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
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  • 2
    Keywords: Forschungsbericht ; Bellingshausenmeer ; Meeresgeologie ; Geophysik ; Polarstern
    Type of Medium: Book
    Pages: 136 S. , graph. Darst., Kt.
    Series Statement: Berichte zur Polarforschung 221
    Language: German , English
    Note: Literaturangaben , Beitr. teilw. dt., teilw. engl
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  • 3
    Publication Date: 2023-06-27
    Keywords: ANT-IX/3; AWI_Paleo; DEPTH, sediment/rock; Gravity corer (Kiel type); inductive; Lazarev Sea; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS18; PS18/184; PS2037-3; Resistivity, electrical; SL
    Type: Dataset
    Format: text/tab-separated-values, 155 data points
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  • 4
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    Unknown
    PANGAEA
    In:  Supplement to: Smetacek, Victor; de Baar, Hein J W; Bathmann, Ulrich; Lochte, Karin; Rutgers van der Loeff, Michiel M (1997): Ecology and biogeochemistry of the Antarctic circumpolar current during austral spring: Southern Ocean JGOFS Cruise ANT X/6 of R.V. Polarstern. Deep Sea Research Part II: Topical Studies in Oceanography, 44(1-2), 1-21, https://doi.org/10.1016/S0967-0645(96)00100-2
    Publication Date: 2024-02-01
    Description: The R.V. Polarstern cruise ANT X/6, part of the international Southern Ocean JGOFS programme, investigated phytoplankton spring bloom development and its biogeochemical effects in different water masses of the Atlantic sector of the Southern Ocean: the Polar Frontal region (PFr), the southern Antarctic Circumpolar Current zone (sACC), its boundary with the Weddell Gyre (AWB) and the marginal ice zone (MIZ). The relative roles of physical stability, iron limitation and grazing pressure in enhancing or constraining phytoplankton biomass accumulation were examined. Three sections were carried out between the PFr and the ice edge along the 6°W meridian from early October to late November 1992. This paper summarises the major findings of the cruise and discusses their implications for our understanding of Southern Ocean ecology and biogeochemistry. A major finding was the negligible build-up of plankton biomass and concomitant absence of CO2 drawdown associated with seasonal retreat of the ice cover. In striking contrast to this unexpected poverty of both the MIZ and the frontal region of the AWB, distinct phytoplankton blooms, dominated by different diatom species, accumulated in the PFr. Chlorophyll stocks in the sACC remained monotonously low throughout the study. Our findings confirm those of other studies that frontal regions are the major productive sites in the Southern Ocean and that input of meltwater and associated ice algae to the surface layer from a retreating ice edge is by itself an insufficient condition for induction of phytoplankton blooms. The blooms in the PFr developed under conditions of shallow mixing layers, high iron concentrations and relatively low grazing pressure. However, in all three blooms, high biomass extended to deeper than 70 m, which cannot be explained by either in situ growth or sinking out of a part of the population from the upper euphotic zone. Subduction of adjoining, shallower layers to explain depth distribution is invoked. Despite a clear CO2 drawdown in the Polar Frontal region, the highly variable conditions encountered render reliable estimation of annual CO2 fluxes in the Southern Ocean difficult.
    Keywords: ANT-X/6; AWI_BioOce; Biological Oceanography @ AWI; CT; CTD/Rosette; CTD-RO; DIVERSE; Giant water sampler; GWS; JGOFS; Joint Global Ocean Flux Study; MUC; MultiCorer; Polarstern; PS22; PS22/6-track; PS22/856C1; PS22/857; PS22/857C1; PS22/858C1; PS22/858C2; PS22/859; PS22/859C1; PS22/859C2; PS22/860; PS22/860C1; PS22/860C2; PS22/860C3; PS22/861C1; PS22/861C2; PS22/862; PS22/862C1; PS22/862C2; PS22/863C1; PS22/864; PS22/864C1; PS22/865; PS22/865C1; PS22/865CA1; PS22/866; PS22/866C1; PS22/866C2; PS22/866C3; PS22/866C4; PS22/866C5; PS22/867; PS22/867C1; PS22/868; PS22/868C1; PS22/868C2; PS22/869; PS22/869C1; PS22/869C2; PS22/870; PS22/870C2; PS22/870C3; PS22/870C4; PS22/871; PS22/871C1; PS22/872; PS22/872C1; PS22/872C2; PS22/872C3; PS22/873; PS22/873C1; PS22/873C2; PS22/874; PS22/874C1; PS22/874C2; PS22/874C3; PS22/875; PS22/875C1; PS22/876; PS22/876C1; PS22/876C2; PS22/877; PS22/877C1; PS22/877C2; PS22/877C3; PS22/878; PS22/878C1; PS22/878C2; PS22/879; PS22/879C1; PS22/879C2; PS22/879C3; PS22/879C4; PS22/880C1; PS22/881; PS22/881C1; PS22/882; PS22/882C1; PS22/882C2; PS22/883C1; PS22/885; PS22/885C1; PS22/886; PS22/886C1; PS22/886C10; PS22/886C2; PS22/886C3; PS22/886C4; PS22/886C5; PS22/886C6; PS22/886C7; PS22/886C8; PS22/887; PS22/887C1; PS22/887C2; PS22/887C3; PS22/888C1; PS22/889C1; PS22/890C1; PS22/891; PS22/891C1; PS22/891C2; PS22/891C3; PS22/891C4; PS22/892C1; PS22/893; PS22/893C1; PS22/893C2; PS22/893C3; PS22/894C1; PS22/895C1; PS22/895C2; PS22/895C3; PS22/895C4; PS22/896C1; PS22/897; PS22/897C1; PS22/897C2; PS22/897C3; PS22/898C1; PS22/899; PS22/899C1; PS22/899C2; PS22/899C3; PS22/899C4; PS22/900; PS22/900C1; PS22/901; PS22/901C1; PS22/901C2; PS22/901C3; PS22/901C4; PS22/901C5; PS22/902; PS22/902C1; PS22/903; PS22/903C1; PS22/903C2; PS22/903C3; PS22/903C4; PS22/904C1; PS22/905; PS22/905C1; PS22/905C2; PS22/905C3; PS22/906C1; PS22/907; PS22/907C1; PS22/907C2; PS22/907C3; PS22/907C4; PS22/907C5; PS22/908; PS22/908C1; PS22/908C2; PS22/909; PS22/909C1; PS22/909C2; PS22/910C1; PS22/911; PS22/911C1; PS22/911C2; PS22/912; PS22/912C1; PS22/912C2; PS22/913C1; PS22/914C1; PS22/915; PS22/915C1; PS22/915C2; PS22/915C3; PS22/916; PS22/916C1; PS22/916C2; PS22/916C3; PS22/917; PS22/917C1; PS22/917C2; PS22/917C3; PS22/918; PS22/918C1; PS22/918C2; PS22/918C3; PS22/919; PS22/919C1; PS22/919C2; PS22/919C3; PS22/919C4; PS22/920; PS22/920C1; PS22/921; PS22/921C1; PS22/922; PS22/922C1; PS22/923; PS22/923C1; PS22/924; PS22/924C1; PS22/925; PS22/925C1; PS22/926; PS22/926C1; PS22/927; PS22/927C1; PS22/928; PS22/928C1; PS22/929C1; PS22/930; PS22/930C1; PS22/930C2; PS22/930C3; PS22/931; PS22/931C1; PS22/931C2; PS22/932C1; PS22/933; PS22/933C1; PS22/934; PS22/934C1; PS22/934C2; PS22/934C3; PS22/934C4; PS22/934C5; PS22/934C6; PS22/935C1; PS22/935C2; PS22/936C1; PS22/937C1; PS22/938; PS22/938C1; PS22/939; PS22/939C1; PS22/939C2; PS22/940; PS22/940C1; PS22/941; PS22/941C1; PS22/941C2; PS22/941C3; PS22/942C1; PS22/943; PS22/943C1; PS22/943C2; PS22/943C3; PS22/944C1; PS22/944C2; PS22/945; PS22/945C1; PS22/945C2; PS22/945C3; PS22/945C4; PS22/946C1; PS22/947; PS22/947C1; PS22/947C2; PS22/947C3; PS22/948C1; PS22/949; PS22/949C1; PS22/949C2; PS22/949C3; PS22/949C4; PS22/950C1; PS22/951; PS22/951C1; PS22/951C2; PS22/951C3; PS22/952C1; PS22/953; PS22/953C1; PS22/953C2; PS22/953C3; PS22/954C1; PS22/955C1; PS22/956; PS22/956C1; PS22/956C2; PS22/956C3; PS22/957C1; PS22/958C1; PS22/959C1; PS22/960; PS22/960C1; PS22/960C2; PS22/960C3; PS22/961C1; PS22/962C1; PS22/963C1; PS22/964; PS22/964C1; PS22/964C2; PS22/964C3; PS22/965C1; PS22/966C1; PS22/968C1; PS22/969; PS22/969C1; PS22/969C2; PS22/969C3; PS22/970; PS22/970C1; PS22/971; PS22/971C1; PS22/972; PS22/972C1; PS22/972C2; PS22/972C3; PS22/972C4; PS22/972C5; PS22/973; PS22/973C1; PS22/974C1; PS22/975C1; PS22/976C1; PS22/977; PS22/977C1; PS22/978; PS22/978C1; PS22/978C2; PS22/978C3; PS22/979C1; PS2356-1; PS2357-1; PS2361-1; PS2362-1; PS2363-1; PS2364-1; PS2365-2; PS2366-1; PS2367-1; PS2368-1; PS2369-4; PS2370-4; PS2371-1; PS2372-1; PS2374-2; PS2376-1; Sampling gear, diverse; Scotia Sea, southwest Atlantic; South Atlantic Ocean; Underway cruise track measurements
    Type: Dataset
    Format: application/zip, 43 datasets
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  • 5
    Publication Date: 2024-02-01
    Keywords: ANT-X/6; AWI_BioOce; Biological Oceanography @ AWI; CTD/Rosette; CTD-RO; Date/Time of event; Depth, bottom/max; Depth, top/min; DEPTH, water; DIVERSE; Elevation of event; Event label; Ice coverage; JGOFS; JGOFS AWI methods; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; Polarstern; Primary production of carbon per area, daily; PS22; PS22/864C1; PS22/866C2; PS22/868C2; PS22/870C2; PS22/872C2; PS22/874C2; PS22/877C3; PS22/878C1; PS22/879C2; PS22/880C1; PS22/882C2; PS22/885C1; PS22/887C3; PS22/891C1; PS22/893C2; PS22/895C1; PS22/897C2; PS22/899C2; PS22/901C1; PS22/903; PS22/907C3; PS22/909C2; PS22/912; PS22/914C1; PS22/915C2; PS22/916; PS22/918C2; PS22/919C2; PS22/931C2; PS22/934; PS22/940; PS22/943; PS22/945; PS22/947; PS22/949C3; PS22/951; PS22/953C2; PS22/956; PS22/960C2; PS22/964; PS22/969C2; Radiation, photosynthetically active; Sampling gear, diverse; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 246 data points
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  • 6
    Publication Date: 2024-02-01
    Keywords: ANT-X/6; Bottle number; Calculated; Calculated from conductivity; Carbon, organic, particulate; CTD/Rosette; CTD-RO; Date/Time of event; Density, sigma-theta (0); DEPTH, water; DIVERSE; Elevation of event; Event label; Filtration; JGOFS; JGOFS AWI methods; Joint Global Ocean Flux Study; Latitude of event; Lead-210; Lead-210, dissolved; Lead-210, dissolved, standard deviation; Lead-210, particulate; Lead-210, particulate, standard deviation; Lead-210, standard deviation; Lead-210/Radium-226 ratio; Longitude of event; Nitrate; Nitrite; Nitrogen, organic, particulate; Phosphate; Polarstern; Polonium-210; Polonium-210, dissolved; Polonium-210, dissolved, standard deviation; Polonium-210, particulate; Polonium-210, particulate, standard deviation; Polonium-210, standard deviation; Polonium-210/Lead-210, standard deviation; Polonium-210/Lead-210 activity ratio; Polonium-210/Lead-210 activity ratio, dissolved; Polonium-210/Lead-210 activity ratio, dissolved, standard deviation; Polonium-210/Lead-210 activity ratio, particulate; Polonium-210/Lead-210 activity ratio, particulate, standard deviation; PS22; PS22/857; PS22/860; PS22/862; PS22/865; PS22/866; PS22/868; PS22/872; PS22/876; PS22/877; PS22/879; PS22/886; PS22/891; PS22/895C1; PS22/899; PS22/903; PS22/907; PS22/908; PS22/911; PS22/917; PS22/931; PS22/941; PS22/945; PS22/949; PS22/953; PS22/956; PS22/960; PS22/969; PS22/972; Radium-226; Salinity; Sampling gear, diverse; Scotia Sea, southwest Atlantic; Silicate; South Atlantic Ocean; Suspended matter, particulate/solids; Temperature, water, potential; Thorium-234, dissolved; Thorium-234, dissolved, standard deviation; Thorium-234, particulate; Thorium-234, particulate, standard deviation; Thorium-234/Uranium-238 activity ratio; Thorium-234/Uranium-238 activity ratio, dissolved; Thorium-234/Uranium-238 activity ratio, particulate; Thorium-234/Uranium-238 activity ratio, standard deviation; Transmission of light; Transmissometer, Sea-Tech 25 beamlength, 660 nm; Uranium-238
    Type: Dataset
    Format: text/tab-separated-values, 5522 data points
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  • 7
    Publication Date: 2024-02-16
    Keywords: 19-Butanoyloxyfucoxanthin; 19-Hexanoyloxyfucoxanthin; Alloxanthin; ANT-X/6; Bottle number; Chlorophyll a; Chlorophyll a, epimer; Chlorophyll a allomers; Chlorophyll b; Chlorophyll c1+c2; Chlorophyll c3; Chlorophyllide a; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; Diadinoxanthin; Elevation of event; Event label; Fucoxanthin; JGOFS; JGOFS AWI methods; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; Peridinin; Pheophorbide a; Pheophytin a; Polarstern; Prasinoxanthin; PS22; PS22/870C2; PS22/872C1; PS22/874C1; PS22/879C3; PS22/882C1; PS22/887C2; PS22/891C2; PS22/893C2; PS22/895C1; PS22/897C1; PS22/899C1; PS22/901C2; PS22/903C1; PS22/905C1; PS22/907C2; PS22/909C1; PS22/912C1; PS22/914C1; PS22/915C1; PS22/916C1; PS22/918C1; PS22/919C1; PS22/920C1; PS22/921C1; PS22/930C1; PS22/931C1; PS22/933C1; PS22/934C1; PS22/938C1; PS22/939C1; PS22/940C1; PS22/941C1; PS22/943C1; PS22/945C1; PS22/947C1; PS22/949C2; PS22/952C1; PS22/953C1; PS22/955C1; PS22/956C1; PS22/957C1; PS22/958C1; PS22/959C1; PS22/960C1; PS22/961C1; PS22/962C1; PS22/963C1; PS22/964C1; PS22/965C1; PS22/966C1; PS22/968C1; PS22/969C1; Pyropheophorbide a; Pyropheophytin a; Sample ID; South Atlantic Ocean; Zeaxanthin + Lutein
    Type: Dataset
    Format: text/tab-separated-values, 6345 data points
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  • 8
    Publication Date: 2024-02-01
    Keywords: ANT-X/6; Biomass, ash free dry mass; Biomass, ash free dry mass per volume; CTD/Rosette; CTD-RO; DATE/TIME; Depth, bottom/max; Depth, top/min; DEPTH, water; DIVERSE; Elevation of event; Event label; Index; JGOFS; JGOFS AWI methods; Joint Global Ocean Flux Study; Latitude of event; Length; Longitude of event; Polarstern; Population density; PS22; PS22/867; PS22/868; PS22/875; PS22/879; PS22/891; PS22/893; PS22/895C1; PS22/897; PS22/899; PS22/901; PS22/903; PS22/905; PS22/907; PS22/930; PS22/931; PS22/938; PS22/939; PS22/943; PS22/945; PS22/947; PS22/949; PS22/953; PS22/956; PS22/960; PS22/964; PS22/969; Sampling gear, diverse; South Atlantic Ocean; Species
    Type: Dataset
    Format: text/tab-separated-values, 37622 data points
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  • 9
    Publication Date: 2024-02-01
    Keywords: ANT-X/6; Bottle number; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; DIVERSE; Elevation of event; Event label; JGOFS; JGOFS AWI methods; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; Photic depth; Polarstern; Primary production of carbon; Primary production of total production; PS22; PS22/885; PS22/895C1; PS22/901; PS22/905; PS22/912; PS22/916; PS22/919; PS22/934; PS22/943; PS22/947; PS22/951; PS22/956; PS22/964; Sampling gear, diverse; South Atlantic Ocean; Transmission of light
    Type: Dataset
    Format: text/tab-separated-values, 1236 data points
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  • 10
    Publication Date: 2024-02-01
    Keywords: ALTITUDE; ANT-X/6; AWI_BioOce; Biological Oceanography @ AWI; CT; DATE/TIME; JGOFS; Joint Global Ocean Flux Study; LATITUDE; LONGITUDE; Polarstern; PS22; PS22/6-track; South Atlantic Ocean; Underway cruise track measurements; Visual observation; Wind direction; Wind speed
    Type: Dataset
    Format: text/tab-separated-values, 16298 data points
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