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  • Chemistry  (2)
  • Inorganic Chemistry  (2)
  • File content; File format; File name; File size; MULT; Multiple investigations; Northern_Greenland_Ice_Sheet; Uniform resource locator/link to file  (1)
  • 1
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    Band-pass-filtered ice-sheet surface elevation, thickness, velocity and derived data maps for the northern Greenland Ice Sheet (2018)
    PANGAEA
    In:  Supplement to: Bons, Paul D; Kleiner, Thomas; Llorens, Maria-Gema; Prior, David J; Sachau, Till; Weikusat, Ilka; Jansen, Daniela (2018): Greenland Ice Sheet: Higher Nonlinearity of Ice Flow Significantly Reduces Estimated Basal Motion. Geophysical Research Letters, 45(13), 6542-6548, https://doi.org/10.1029/2018GL078356
    Details
    Publication Date: 2023-02-06
    Description: In times of warming in polar regions, the prediction of ice sheet discharge is of utmost importance to society, because of its impact on sea level rise. In simulations the flow rate of ice is usually implemented as proportional to the differential stress to the power of the exponent n=3. This exponent influences the softness of the modeled ice, as higher values would produce faster flow under equal stress. We show that the stress exponent, which best fits the observed state of the Greenland Ice Sheet, equals n=4, Our results, which are not dependent on a possible basal sliding component of flow, indicate that most of the interior northern ice sheet is currently frozen to bedrock, except for the large ice streams and marginal ice.
    Keywords: File content; File format; File name; File size; MULT; Multiple investigations; Northern_Greenland_Ice_Sheet; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 75 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
    Electronic Resource
    Electronic Resource
    Neutrale Ionophore mit Selektivität für Na⊕ (1983)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 116 (1983), S. 2028-2034 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Neutral Ionophores with Selectivity for Na⊕New non-macrocyclic, electrically neutral ionophores 5-9 are described. In membranes they induce selectivities of Na⊕ over K⊕ by a factor of up to 20.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19831160529
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Neue neutrale Ionophore mit hoher Selektivität für Ba2+ (1985)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 1071-1077 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Neutral Ionophores with High Ba2+ SelectivityThe syntheses and the selectivity coefficients of the new open-chained, electrically neutral ionophores 2-4 are reported. Their lipophilicities and their selectivities in membranes with respect to Ba2+ ions were optimized: 2c and - to a smaller extent - 4 exhibit a remarkable combination of high Ba2+ selectivity and high lipophilicity and are, therefore, attractive for analytical applications.
    Notes: Synthesen und Selektivitätskoeffizienten der neuen offenkettigen, elektrisch neutralen Ionophore 2-4 werden mitgeteilt. Ihre Lipophilien und Selektivitäten für Ba2+ -Ionen in Membranen wurden optimiert: 2c und - weniger ausgeprägt - 4 zeigen eine bemerkenswerte Kombination von hoher Ba2+ -Selektivität und hoher Lipophilie und sind daher für analytische Anwendungszwecke attraktiv.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19851180324
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    Paper (German National Licenses)
    Fulltext
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