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  • 2000-2004  (6)
  • 1960-1964
  • 2001  (6)
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Keywords
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  • 2000-2004  (6)
  • 1960-1964
Year
  • 1
    Online Resource
    Online Resource
    Transparent exopolymer particles (TEP) in aquatic environments (2001)
    Kiel
    Details Availability
    Keywords: Hochschulschrift ; Aufsatzsammlung
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (288 Seiten = 17 MB) , Illustrationen, Graphen
    Edition: Online-Ausgabe
    URL: https://oceanrep.geomar.de/id/eprint/59324/
    Language: English
    Note: Zusammenfassung in deutscher und englischer Sprache
    Location Call Number Limitation Availability
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  • 2
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    Particle flux variability in the polar and Atlantic biogeochemical provinces of the Nordic Seas (2001)
    Springer
    In:  In: The Northern North Atlantic: A Changing Environment. , ed. by Schäfer, P., Ritzrau, W., Schlüter, M. and Thiede, J. Springer, Berlin, Germany, pp. 69-79.
    Details
    Publication Date: 2020-04-01
    Description: A decade of particle flux measurements providse the basis for a comparison of the eastem and westem provinces ofthe Nordic Seas. Ice-related physical and biological seasonality as well as pelagic settings jointly control fluxes in the westem Polar Province which receives southward flowing water of Polar origin. Sediment trap data from this realm highlight a predominantly physical flux control which leads to exports of siliceous particles within the biological marginal ice zone as a prominent contributor. In the northward flowing waters of the eastem Atlantic Province, feeding Strategie . life histories and the succession of dominant mesozooplankters (copepods and pteropods) are central in controlling fluxes. Furthermore, more calcareous matter is exported here with a shift in flux seasonality towards surnrner/autumn. Dominant pelagic processes modeled numerically as to their impact on annual organic carbon exports for both provinces confirrn that interannual flux variability is related to changes in the respective control mechanisms. Annual organic carbon exports are strikingly similar in the Polar and Atlantic Provinces (2.4 and 2.9 g m-2 y-1 at 500 m depth). despite major differences in flux control. The Polar and Atlantic Provinces. however, can be distinguished according to annual fluxes of opal ( l.4 and 0.6 g m-2 y-1) and carbonate (6.8 and 10.4 g m-2 y-1). lnterannual variability may blur this in single years. Thus. it is vital to use multi-annual data sets when including particle exports in general biogeochemical province descriptions. Vertical flux profiles (collections from 500 m, l000 min both provinces and 300-600 m above the seafloor deviate from the general vertical decline of fluxes due to particle degradation during sinking. At depths 〉 1000 m secondary fluxes (laterally advected/re uspended particles) are often juxtaposed to primary (pelagic) fluxes, a pattem which is most prominent in the Atlantic Province. Spatial variability within theAtlantic Province remains poorly understood. and the same holds true for interannual variability. No proxies are at hand for this province to quantitatively relate fluxes to physical or biological pelagic properties. For the easonally ice-covered Polar Province a robust relationship exists between particle export and ambient ice-regime (Ramseier et al. this volume; Ramseier et al. 1999). Spatial flux pattems may be differentiated and interannual variability can be analyzed in this manner to improve our ability to couple pelagic export pattems with benthic and geochemical sedimentary processes in seasonally ice-covered seas.
    Type: Book chapter , NonPeerReviewed
    Format: text
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    OceanRep: Book chapter
  • 3
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    Basin-wide particulate carbon flux in the Atlantic Ocean: regional export patterns and potential for atmospheric CO2 sequestration (2001)
    AGU (American Geophysical Union)
    In:  Global Biogeochemical Cycles, 15 (4). pp. 845-862.
    Details
    Publication Date: 2018-03-15
    Description: Particle flux data from 27 sites in the Atlantic Ocean have been compiled in order to determine regional variations in the strength and efficiency of the biological pump and to quantify carbon fluxes over the ocean basin, thus estimating the potential oceanic sequestration of atmospheric CO2. An algorithm is derived relating annual particulate organic carbon (POC) flux to primary production and depth that yields variations in the export ratio (ER = POC flux/primary production) at 125 m of between 0.08 and 0.38 over the range of production from 50 to 400 g C m−2 yr−1. Significant regional differences in changes of the export ratio with depth are related to the temporal stability of flux. Sites with more pulsed export have higher export ratios at 125 m but show more rapid decreases of POC flux with depth, resulting in little geographic variation in fluxes below ∼3000 m. The opposing effects of organic carbon production and calcification on ΔpCO2 of surface seawater are considered to calculate an “effective carbon flux” at the depth of the euphotic zone and at the base of the winter mixed layer. POC flux at the base of the euphotic zone integrated over the Atlantic Ocean between 65°N and 65°S amounts to 3.14 Gt C yr−1. Of this, 5.7% is remineralized above the winter mixed layer and thus does not contribute to CO2 sequestration on climatically relevant timescales. The effective carbon flux, termed Jeff, amounts to 2.47 Gt C yr−1 and is a measure of the potential sequestration of atmospheric CO2 for the area considered. A shift in the composition of sedimenting particles (seen in a decrease of the opal:carbonate ratio) is seen across the entire North Atlantic, indicating a basin-wide phenomenon that may be related to large-scale changes in climatic forcing.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1029/2000GB001376
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 4
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    Nutrients measured on water bottle samples during METEOR cruise M10/2 (2001)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: Bottle, Niskin 30-L; Carbon, organic, particulate; Carbon/nitrogen analyser (GF/F filtered); Chlorophyll a; Counting 250-2000 µm fraction; Date/Time of event; DEPTH, water; Elevation of event; Event label; JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; M10/2; M10/2-RO6-427_076; M10/2-RO6-432_079; M10/2-RO6-437_081; M10/2-RO6-440_083; M10/2-RO6-445_086; M10/2-RO6-450_089; M10/2-RO6-455_091; M10/2-RO6-460_096; M10/2-RO6-465_098; M10/2-RO6-470_100; M10/2-RO6-475_103; M10/2-RO6-480_105; M10/2-RO6-485_106; M10/2-RO6-490_107; M10/2-RO6-495_109; M10/2-RO6-564_111; M10/2-RO6-569_113; M10/2-RO6-574_115; M10/2-RO6-581_117; M10/2-RO6-586_119; M10/2-RO6-591_121; M10/2-RO6-596_123; M10/2-RO6-601_125; M10/2-RO6-606_127; M10/2-RO6-611_129; M10/2-RO6-616_131; Meteor (1986); NABE; NIS_30L; Nitrogen, organic, particulate; North Atlantic Bloom Experiment, 1989-1991; Oxidation; then autoanalysis (GF/F filtered); Oxidation (alkaline) with borate buffered potassium persulphate; Phosphorus, particulate; Silicon, particulate
    Type: Dataset
    Format: text/tab-separated-values, 878 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Physical oceanography during METEOR cruise M10/2 (2001)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: Calculated; Calculated from conductivity; CTD, Neil Brown, Mark III B; CTD/Rosette; CTD profile; CTD-RO; Date/Time of event; Density, sigma-theta (0); DEPTH, water; Elevation of event; Event label; JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; M10/2; M10/2-CTD-427_224; M10/2-CTD-430_225; M10/2-CTD-432_226; M10/2-CTD-435_227; M10/2-CTD-435_228; M10/2-CTD-435_229; M10/2-CTD-435_230; M10/2-CTD-435_231; M10/2-CTD-435_232; M10/2-CTD-436_233; M10/2-CTD-437_234; M10/2-CTD-437_235; M10/2-CTD-437_236; M10/2-CTD-438_237; M10/2-CTD-440_238; M10/2-CTD-440_239; M10/2-CTD-443_240; M10/2-CTD-445_241; M10/2-CTD-445_242; M10/2-CTD-448_243; M10/2-CTD-450_244; M10/2-CTD-453_245; M10/2-CTD-455_246; M10/2-CTD-455_247; M10/2-CTD-455_248; M10/2-CTD-458_249; M10/2-CTD-460_250; M10/2-CTD-460_251; M10/2-CTD-463_252; M10/2-CTD-465_253; M10/2-CTD-465_254; M10/2-CTD-465_255; M10/2-CTD-468_256; M10/2-CTD-470_257; M10/2-CTD-470_258; M10/2-CTD-473_259; M10/2-CTD-474_260; M10/2-CTD-475_261; M10/2-CTD-475_262; M10/2-CTD-478_263; M10/2-CTD-480_264; M10/2-CTD-480_265; M10/2-CTD-480_266; M10/2-CTD-483_267; M10/2-CTD-484_268; M10/2-CTD-485_269; M10/2-CTD-485_270; M10/2-CTD-488_271; M10/2-CTD-490_272; M10/2-CTD-490_273; M10/2-CTD-490_274; M10/2-CTD-493_275; M10/2-CTD-495_276; M10/2-CTD-495_277; M10/2-CTD-499_278; M10/2-CTD-499_279; M10/2-CTD-500_280; M10/2-CTD-501_281; M10/2-CTD-502_282; M10/2-CTD-503_283; M10/2-CTD-504_284; M10/2-CTD-505_285; M10/2-CTD-506_286; M10/2-CTD-507_287; M10/2-CTD-518_288; M10/2-CTD-519_289; M10/2-CTD-550_290; M10/2-CTD-551_291; M10/2-CTD-552_292; M10/2-CTD-553_293; M10/2-CTD-554_294; M10/2-CTD-555_295; M10/2-CTD-556_296; M10/2-CTD-557_297; M10/2-CTD-558_298; M10/2-CTD-559_299; M10/2-CTD-560_300; M10/2-CTD-561_301; M10/2-CTD-562_302; M10/2-CTD-563_303; M10/2-CTD-564_304; M10/2-CTD-564_305; M10/2-CTD-567_306; M10/2-CTD-569_307; M10/2-CTD-569_308; M10/2-CTD-569_309; M10/2-CTD-572_310; M10/2-CTD-574_311; M10/2-CTD-575_312; M10/2-CTD-576_313; M10/2-CTD-579_314; M10/2-CTD-581_315; M10/2-CTD-581_316; M10/2-CTD-581_317; M10/2-CTD-581_318; M10/2-CTD-581_319; M10/2-CTD-581_320; M10/2-CTD-584_321; M10/2-CTD-586_322; M10/2-CTD-586_323; M10/2-CTD-586_324; M10/2-CTD-586_325; M10/2-CTD-589_326; M10/2-CTD-591_327; M10/2-CTD-591_328; M10/2-CTD-591_329; M10/2-CTD-591_330; M10/2-CTD-591_331; M10/2-CTD-591_332; M10/2-CTD-591_333; M10/2-CTD-594_334; M10/2-CTD-596_335; M10/2-CTD-596_336; M10/2-CTD-596_337; M10/2-CTD-596_338; M10/2-CTD-596_339; M10/2-CTD-596_340; M10/2-CTD-596_341; M10/2-CTD-599_342; M10/2-CTD-601_343; M10/2-CTD-601_344; M10/2-CTD-601_345; M10/2-CTD-604_346; M10/2-CTD-606_347; M10/2-CTD-606_348; M10/2-CTD-609_349; M10/2-CTD-611_350; M10/2-CTD-611_351; M10/2-CTD-611_352; M10/2-CTD-614_353; M10/2-CTD-616_354; M10/2-CTD-616_355; M10/2-CTD-617_356; M10/2-CTD-618_357; M10/2-CTD-619_358; M10/2-CTD-620_359; M10/2-CTD-621_360; M10/2-CTD-624_361; Meteor (1986); NABE; North Atlantic Bloom Experiment, 1989-1991; Pressure, water; Salinity; Temperature, water; Temperature, water, potential
    Type: Dataset
    Format: text/tab-separated-values, 598230 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Physical oceanography during METEOR cruise M10/3 (2001)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: Calculated; Calculated from conductivity; CTD, Neil Brown, Mark III B; CTD/Rosette; CTD profile; CTD-RO; Date/Time of event; Density, sigma-theta (0); DEPTH, water; Elevation of event; Event label; JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; M10/3; M10/3-CTD-625_362; M10/3-CTD-626_363; M10/3-CTD-627_364; M10/3-CTD-628_365; M10/3-CTD-629_366; M10/3-CTD-630_367; M10/3-CTD-631_368; M10/3-CTD-632_369; M10/3-CTD-633_370; M10/3-CTD-636_371; M10/3-CTD-640_372; M10/3-CTD-640_373; M10/3-CTD-640_374; M10/3-CTD-645_375; M10/3-CTD-647_376; M10/3-CTD-648_377; M10/3-CTD-649_378; M10/3-CTD-650_379; M10/3-CTD-651_380; M10/3-CTD-652_381; M10/3-CTD-654_382; M10/3-CTD-655_383; M10/3-CTD-657_384; M10/3-CTD-658_385; M10/3-CTD-658_386; M10/3-CTD-659_387; M10/3-CTD-661_388; M10/3-CTD-663_389; M10/3-CTD-663_390; M10/3-CTD-665_391; M10/3-CTD-666_392; M10/3-CTD-666_393; M10/3-CTD-679_394; M10/3-CTD-682_395; M10/3-CTD-684_396; M10/3-CTD-686_397; M10/3-CTD-686_398; M10/3-CTD-689_399; M10/3-CTD-690_400; Meteor (1986); Pressure, water; Salinity; Temperature, water; Temperature, water, potential
    Type: Dataset
    Format: text/tab-separated-values, 201515 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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