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  • 1
    Book
    Book
    CO2 in seawater : equilibrium, kinetics, isotopes (2003)
    Amsterdam [u.a.] : Elsevier Science
    Details Availability
    Keywords: Kohlendioxid ; Meerwasser
    Type of Medium: Book
    Pages: XIII, 346 S , graph. Darst
    Edition: 1. ed., 2. impr., with corr.
    ISBN: 0444505792 , 0444509461
    Series Statement: Elsevier oceanography series 65
    URL: http://www.gbv.de/dms/bowker/toc/9780444505798.pdf
    Language: English
    Note: Literaturverz. S. 313 - 340
    Location Call Number Limitation Availability
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    GEOMAR CATALOGUE
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  • 2
    Electronic Resource
    Electronic Resource
    Pair interaction lattice gas simulations: Flow past obstacles in two and three dimensions (1993)
    Springer
    Journal of statistical physics 71 (1993), S. 163-190 
    Details
    ISSN: 1572-9613
    Keywords: Viscosity measurements ; drag coefficients ; 3D simulations ; finite-size effects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Apart from the FCHC (face-centered hypercube), Nasilowski's pair interaction lattice gas (PI) is the only known lattice gas automaton for three-dimensional hydrodynamic simulations. Unfortunately, the viscosity of PI is not isotropic. In order to determine the degree anisotropy, we derive fluid dynamic equations for the regime of compressible viscid flow. From relaxation measurements of waves propagating in various directions we compute the physically relevant dissipation coefficients and compare our results with theoretical predictions. Although PI shows a high degree of anisotropy, we define the mean value of the dissipation tensor as effective shear viscosity. Using this value of v eff 2D =0.35, two-dimensional simulations of flow past a cylinder yield drag coefficients in quantitative agreement with wind tunnel measurements over a range of Reynolds numbers of 5–50. Three-dimensional simulations of flow past a sphere yield qualitative agreement with various references. A fit of the results to a semi-empirical curve provides an effective value of v eff 2D =0.21 for a range of Reynolds numbers from 0.19 to 40. In order to check for finite-size effects, we measured the mean free pathλ and computed the Knudsen numbers. We obtainedλ≈ 1 lattice unit, corresponding to Kn=0.01 (2D) and Kn=0.1 (3D). We found no significant finite-size effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01048093
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Physical oceanography during POLARSTERN cruise ANT-XXV/3 (LOHAFEX) (2010)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXV/3; Attenuation, optical beam transmission; AWI_PhyOce; Computed; Conductivity; CTD, SEA-BIRD SBE 911plus, SN T1373-C3290; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; Elevation of event; Event label; Fluorometer; Fluorometer, Dr. Haardt Instruments; Latitude of event; Longitude of event; MULT; Multiple investigations; Number of observations; Oxygen; Oxygen saturation; Physical Oceanography @ AWI; Polarstern; Pressure, water; PS73/098-1; PS73/098-6; PS73/099-1; PS73/100-1; PS73/101-1; PS73/102-1; PS73/103-1; PS73/104-1; PS73/105-1; PS73/106-1; PS73/107-1; PS73/108-1; PS73/109-1; PS73/110-1; PS73/111-1; PS73/112-1; PS73/112-9; PS73/114-1; PS73/114-11; PS73/114-15; PS73/114-18; PS73/114-4; PS73/114-6; PS73/115-1; PS73/116-1; PS73/117-1; PS73/118-1; PS73/120-1; PS73/120-5; PS73/121-1; PS73/122-1; PS73/123-1; PS73/124-1; PS73/125-1; PS73/127-1; PS73/127-6; PS73/128-1; PS73/129-1; PS73/130-1; PS73/131-1; PS73/132-1; PS73/132-11; PS73/132-15; PS73/132-6; PS73/132-7; PS73/132-9; PS73/134-1; PS73/135-1; PS73/135-11; PS73/135-13; PS73/135-6; PS73/135-8; PS73/137-1; PS73/137-11; PS73/137-13; PS73/137-6; PS73/137-8; PS73/138-2; PS73/139-11; PS73/139-13; PS73/139-2; PS73/139-6; PS73/139-9; PS73/141-1; PS73/142-1; PS73/143-1; PS73/146-11; PS73/146-13; PS73/146-16; PS73/146-4; PS73/146-9; PS73/147-1; PS73/148-1; PS73/148-10; PS73/148-12; PS73/148-15; PS73/148-5; PS73/149-1; PS73/150-1; PS73/151-1; PS73/152-1; PS73/153-1; PS73/159-1; PS73/160-1; PS73/160-13; PS73/160-16; PS73/160-19; PS73/160-6; PS73/160-9; PS73/162-10; PS73/162-12; PS73/162-16; PS73/162-2; PS73/162-6; PS73/163-1; PS73/163-2; PS73/164-4; PS73/165-1; PS73/166-1; PS73/167-1; PS73/168-1; PS73/170-1; PS73/170-13; PS73/170-16; PS73/170-21; PS73/170-5; PS73/170-9; PS73/172-1; PS73/174-1; PS73/175-3; PS73/176-1; PS73/177-2; PS73/178-1; PS73/179-1; PS73/180-2; PS73/181-1; PS73/182-1; PS73/185-1; PS73/186-1; PS73/187-2; PS73/188-1; PS73/189-2; PS73/190-1; PS73/191-2; PS73/192-10; PS73/192-12; PS73/192-2; PS73/192-5; PS73/192-8; PS73/193-1; PS73/195-2; PS73/196-1; PS73/197-1; PS73/198-1; PS73/199-11; PS73/199-14; PS73/199-2; PS73/199-6; PS73/199-8; PS73/200-1; PS73/201-1; PS73/202-1; PS73/204-1; PS73/204-10; PS73/204-15; PS73/204-19; PS73/204-5; PS73/211-1; PS73/212-1; PS73 LOHAFEX; Salinity; South Atlantic Ocean; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 1156635 data points
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  • 4
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    Raw data of continuous VM-ADCP (vessel-mounted Acoustic Doppler Current Profiler) profile during POLARSTERN cruise ANT-XXV/3 (LOHAFEX) (2011)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXV/3; AWI_PhyOce; CT; Physical Oceanography @ AWI; Polarstern; PS73/3-track; PS73 LOHAFEX; South Atlantic Ocean; Underway cruise track measurements
    Type: Dataset
    Format: application/x-tar, 11 GBytes
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    DATA PANGAEA
  • 5
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    Continuous thermosalinograph oceanography along POLARSTERN cruise track ANT-XXVIII/3 (2012)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXVIII/3; AWI_PhyOce; CT; DATE/TIME; DEPTH, water; LATITUDE; LONGITUDE; Physical Oceanography @ AWI; Polarstern; PS79; PS79/3-track; Salinity; South Atlantic Ocean; Temperature, water; Thermosalinograph; TSG; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 15094 data points
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    DATA PANGAEA
  • 6
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    Station list and links to master tracks in different resolutions of POLARSTERN cruise ANT-XXVIII/3, Cape Town - Punta Arenas, 2012-01-07 - 2012-03-11 (2015)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: ANT-XXVIII/3; Calculated; Course; CT; DATE/TIME; LATITUDE; LONGITUDE; Polarstern; PS79; PS79/3-track; South Atlantic Ocean; Speed; Underway cruise track measurements
    Type: Dataset
    Format: text/tab-separated-values, 18536 data points
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    DATA PANGAEA
  • 7
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    Raw data of continuous VM-ADCP (vessel-mounted Acoustic Doppler Current Profiler) profiles during POLARSTERN cruise ANT-XXVIII/3 (2015)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-03-16
    Keywords: Acoustic Doppler Current Profiling (ADCP), TRDI Ocean Surveyor, 153.6 kHz; ANT-XXVIII/3; AWI_PhyOce; CT; File content; File name; Physical Oceanography @ AWI; Polarstern; PS79; PS79/3-track; South Atlantic Ocean; Underway cruise track measurements; Uniform resource locator/link to raw data file
    Type: Dataset
    Format: text/tab-separated-values, 27 data points
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    DATA PANGAEA
  • 8
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    On the Southern Ocean CO2 uptake and the role of the biological carbon pump in the 21st century, links to supplementary material (2015)
    PANGAEA
    In:  Supplement to: Hauck, Judith; Völker, Christoph; Wolf-Gladrow, Dieter A; Laufkötter, Charlotte; Vogt, Meike; Aumont, Olivier; Bopp, Laurent; Buitenhuis, Erik Theodoor; Doney, Scott C; Dunne, John; Gruber, Nicolas; Hashioka, Taketo; John, Jasmin; Le Quéré, Corinne; Lima, Ivan D; Nakano, Hideyuki; Séférian, Roland; Totterdell, Ian J (2015): On the Southern Ocean CO2 uptake and the role of the biological carbon pump in the 21st century. Global Biogeochemical Cycles, 29(9), 1451-1470, https://doi.org/10.1002/2015GB005140
    Details
    Publication Date: 2023-01-13
    Description: We use a suite of eight ocean biogeochemical/ecological general circulation models from the MAREMIP and CMIP5 archives to explore the relative roles of changes in winds (positive trend of Southern Annular Mode, SAM) and in warming- and freshening-driven trends of upper ocean stratification in altering export production and CO2 uptake in the Southern Ocean at the end of the 21st century. The investigated models simulate a broad range of responses to climate change, with no agreement ona dominance of either the SAM or the warming signal south of 44° S. In the southernmost zone, i.e., south of 58° S, they concur on an increase of biological export production, while between 44 and 58° S the models lack consensus on the sign of change in export. Yet, in both regions, the models show an enhanced CO2 uptake during spring and summer. This is due to a larger CO 2 (aq) drawdown by the same amount of summer export production at a higher Revelle factor at the end of the 21st century. This strongly increases the importance of the biological carbon pump in the entire Southern Ocean. In the temperate zone, between 30 and 44° S all models show a predominance of the warming signal and a nutrient-driven reduction of export production. As a consequence, the share of the regions south of 44° S to the total uptake of the Southern Ocean south of 30° S is projected to increase at the end of the 21st century from 47 to 66% with a commensurable decrease to the north. Despite this major reorganization of the meridional distribution of the major regions of uptake, the total uptake increases largely in line with the rising atmospheric CO2. Simulations with the MITgcm-REcoM2 model show that this is mostly driven by the strong increase of atmospheric CO2, with the climate-driven changes of natural CO2 exchange offsetting that trend only to a limited degree (~10%) and with negligible impact of climate effects on anthropogenic CO2 uptake when integrated over a full annual cycle south of 30° S.
    Keywords: File content; Uniform resource locator/link to file; Uniform resource locator/link to image
    Type: Dataset
    Format: text/tab-separated-values, 27 data points
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    DATA PANGAEA
  • 9
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    Calcium carbonate content in surface sediments and benthic fauna on Antarctic shelves
    PANGAEA
    In:  Supplement to: Hauck, Judith; Gerdes, Dieter; Hillenbrand, Claus-Dieter; Hoppema, Mario; Kuhn, Gerhard; Nehrke, Gernot; Völker, Christoph; Wolf-Gladrow, Dieter A (2012): Distribution and mineralogy of carbonate sediments on Antarctic shelves. Journal of Marine Systems, 90(1), 77-87, https://doi.org/10.1016/j.jmarsys.2011.09.005
    Details
    Publication Date: 2023-06-27
    Description: We analyzed 214 new core-top samples for their CaCO3 content from shelves all around Antarctica in order to understand their distribution and contribution to the marine carbon cycle. The distribution of sedimentary CaCO3 on the Antarctic shelves is connected to environmental parameters where we considered water depth, width of the shelf, sea-ice coverage and primary production. While CaCO3 contents of surface sediments are usually low, high(〉 15%) CaCO3 contents occur at shallow water depths (150-200 m) on narrow shelves of the eastern Weddell Sea and at a depth range of 600-900 m on the broader and deeper shelves of the Amundsen, Bellingshausen and western Weddell Seas. Regions with high primary production, such as the Ross Sea and the western Antarctic Peninsula region, have generally low CaCO3 contents in the surface sediments. The predominant mineral phase of CaCO3 on the Antarctic shelves is low-magnesium calcite. With respect to ocean acidification, our findings suggest that dissolution of carbonates in Antarctic shelf sediments may be an important negative feedback only after the onset of calcite undersaturation on the Antarctic shelves. Macrozoobenthic CaCO3 standing stocks do not increase the CaCO3 budget significantly as they are two orders of magnitude lower than the budget of the sediments. This first circumpolar compilation of Antarctic shelf carbonate data does not claim to be complete. Future studies are encouraged and needed to fill data gaps especially in the under-sampled southwest Pacific and Indian Ocean sectors of the Southern Ocean.
    Keywords: ANT-III/2; ANT-IX/3; ANT-V/1; ANT-VI/3; ANT-VII/4; ANT-XIII/3; ANT-XIX/5; ANT-XV/3; ANT-XVII/3; ANT-XXI/2; ANT-XXIII/8; BIOACID; Biological Impacts of Ocean Acidification; Drake Passage; Giant box corer; GKG; Haul 1; Haul 10; Haul 11; Haul 12; Haul 20; Haul 22; Haul 23; Haul 24; Haul 25; Haul 26; Haul 27; Haul 28; Haul 29; Haul 30; Haul 31; Haul 33; Haul 35; Haul 36; Haul 37; Haul 38; Haul 4; Haul 5; Haul 6; Haul 8; Haul 9; Kapp Norvegia; Lazarev Sea; MG; MULT; Multiboxcorer; Multiple investigations; Polarstern; PS06; PS06/120-1; PS06/151-7; PS06/158-1; PS06/196-2; PS06/203-2; PS06/207-3; PS06/208-1; PS09/004-2; PS09/010-3; PS09/020-2; PS09/091-6; PS09/115-3; PS09/119-5; PS09/123-5; PS09/126-5; PS09/132-2; PS09/134-3; PS09/136-4; PS09/138-3; PS09/139-3; PS09/140-3; PS09/141-3; PS09/142-4; PS09/143-3; PS09/145-3; PS09/147-3; PS09/148-3; PS09/149-4; PS09/150-1; PS09/151-3; PS09/152-3; PS09/153-3; PS09/154-3; PS09/155-2; PS09 WWSP86 SIBEX; PS12; PS12/266; PS12/298; PS12/305; PS12/308; PS12/314; PS12/323; PS12/333; PS12/342; PS12/344; PS12/346; PS12/348; PS12/354; PS12/362-2; PS12/372; PS12/378; PS12/384; PS12/387; PS12/396; PS12/418; PS12/437; PS12/503; PS12/512-2; PS14/229-1; PS14/235-1; PS14/241-1; PS14/245-1; PS14/248-1; PS14/249-1; PS14/250-11; PS14/250-8; PS14/274-1; PS14/277-1; PS14/292-1; PS14 EPOS I; PS1579-1; PS1589-1; PS1593-1; PS1594-1; PS1597-1; PS1601-1; PS1604-1; PS1608-1; PS1609-1; PS1610-4; PS1611-1; PS1614-1; PS1621-1; PS1624-1; PS1627-1; PS1628-2; PS1629-1; PS1631-1; PS1632-1; PS1641-1; PS18; PS18/127; PS18/129; PS18/135; PS18/162; PS18/165; PS18/171; PS18/173; PS18/175-8; PS18/179-4; PS18/180-5; PS18/189; PS18/212-7; PS18/216; PS18/220-1; PS18/222; PS1995-1; PS1997-2; PS1998-1; PS2016-3; PS2018-1; PS2024-1; PS2026-2; PS2042-2; PS2063-1; PS2068-1; PS39/002-3; PS39/002-4; PS39/002-6; PS39/002-7; PS39/004-9; PS39/005-13; PS39/005-14; PS39/005-15; PS39/005-6; PS39/006-17; PS39/006-19; PS39/006-20; PS39/006-21; PS39/008-4; PS39/008-5; PS39/008-7; PS39/009-10; PS39/009-11; PS39/009-12; PS39/009-6; PS39/009-9; PS39/024-7; PS39/024-8; PS39/025-8; PS39/026-4; PS39 EASIZ; PS48/047; PS48/048; PS48/063; PS48/065-2; PS48/067; PS48/068; PS48/069; PS48/092; PS48/146; PS48/188; PS48/216; PS48/223; PS48/224; PS48/225; PS48/227; PS48/228; PS48/230; PS48/299; PS48/300; PS48/325; PS48/326; PS48/341; PS48/345; PS48 EASIZ II; PS56/090-1; PS56/098-2; PS56/108-1; PS56/112-1; PS56/113-1; PS56/114-1; PS56/120-1; PS56/121-1; PS56/135-6; PS56/137-1; PS56/148-3; PS56/160-2; PS56/161-2; PS56/162-2; PS56/169-1; PS56/176-2; PS56/177-3; PS56/178-1; PS56/179-1; PS56/180-1; PS56/190-2; PS56/190-3; PS56 EASIZ III; PS61/163-1; PS61/176-1; PS61 LAMPOS; PS65/076-1; PS65/077-1; PS65/080-1; PS65/082-1; PS65/084-1; PS65/105-1; PS65/106-1; PS65/116-1; PS65/124-1; PS65/125-1; PS65/183-1; PS65/185-1; PS65/187-1; PS65/197-1; PS65/199-1; PS65/201-1; PS65/202-1; PS65/282-1; PS65/331-1; PS65 BENDEX; PS69; PS69/693-3; PS69/700-1; PS69/701-1; PS69/703-4; PS69/704-1; PS69/706-3; PS69/709-6; PS69/715-3; PS69/718-7; PS69/722-2; PS69/725-4; Scotia Sea, southwest Atlantic; South Atlantic Ocean; South Pacific Ocean; van Veen Grab; VGRAB; Walther Herwig II; Weddell Sea; Weddell Sea, Larsen-A; Weddell Sea, Larsen-B; WH068/1; WH068/1_089; WH068/1_090; WH068/1_096; WH068/1_100; WH068/1_101; WH068/1_102; WH068/1_106; WH068/1_107; WH068/1_114; WH068/1_116; WH068/1_120; WH068/1_133; WH068/1_137; WH068/1_142; WH068/1_143; WH068/1_148; WH068/1_149; WH068/1_154; WH068/1_155; WH068/1_160; WH068/1_161; WH068/1_165; WH068/1_166; WH068/1_171; WH068/2; WH068/2_266; WH068/2_275; WH068/2_278; WH068/2_287; WH068/2_293; WH068/2_311; WH068/2_312; WH068/2_313; WH068/2_319; WH068/2_320; WH113/1, SIBEX-II; WH113/2, SIBEX-II
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 10
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    Calcium carbonate content in surface sediments on Antarctic shelves
    PANGAEA
    Details
    Publication Date: 2023-06-21
    Keywords: Area/locality; BIOACID; Biological Impacts of Ocean Acidification; Calcium carbonate; Depth, bathymetric; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Gear; LATITUDE; LONGITUDE; Reference of data; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 2842 data points
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