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  • 1
    Book
    Book
    'Dirt pictures' reveal the past extent of the grounded antarctic ice sheet (2001)
    Amsterdam : Universiteit
    Details Availability
    Keywords: Ice sheets Antarctica ; Marine sediments Antarctica ; Hochschulschrift
    Type of Medium: Book
    Pages: 231 S , Ill., graph. Darst
    ISBN: 9067870579
    Language: English
    Note: Enth. Zeitschriftenaufsätze , Zugl.: Amsterdam, Univ., Thesis, 2001
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  • 2
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    Micromorphological observations in the Miocene section of sediment core CRP-1 (Table 1)
    PANGAEA
    In:  Supplement to: van der Meer, Jaap; Hiemstra, John F (1998): Micromorphology of Miocene diamicts, indications of grounded ice. Terra Antartica, 5(3), 363-366, hdl:10013/epic.28320.d001
    Details
    Publication Date: 2023-06-27
    Description: Five samples of diamicts from different levels of the Miocene part of the CRP-1 core have been thin sectioned. Observations in the thin sections relate to texture, diagenesis, structure and plasmic fabric. The combination of observed microstructures leads to the interpretation that three samples are certainly indicative of grounded ice, e.g. they are basal tills, whilst the other two samples also possibly represent the same environment.
    Keywords: 16 km ENE Cape Roberts; Cape Roberts Project; Clay; Core wireline system; CRP; CRP-1; CWS; DEPTH, sediment/rock; Diagenesis; off Cape Roberts, Ross Sea, Antarctica; Sampling/drilling ice; Structure; Texture; Thin section analysis/measurements
    Type: Dataset
    Format: text/tab-separated-values, 27 data points
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    DATA PANGAEA
  • 3
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    Snow Sublimation in Mountain Environments and its Sensitivity to Forest Disturbance and Climate Warming (2018)
    Wiley-Blackwell
    Details
    Publication Date: 2018-02-07
    Description: Snow sublimation is an important component of the snow mass balance, but the spatial and temporal variability of this process is not well understood in mountain environments. This study combines a process-based snow model (SnowModel) with eddy covariance (EC) measurements to investigate (1) the spatio-temporal variability of simulated snow sublimation with respect to station observations, (2) the contribution of snow sublimation to the ablation of the snowpack, and (3) the sensitivity and response of snow sublimation to bark beetle-induced forest mortality and climate warming across the north-central Colorado Rocky Mountains. EC-based observations of snow sublimation compared well with simulated snow sublimation at stations dominated by surface and canopy sublimation, but blowing snow sublimation in alpine areas was not well captured by the EC instrumentation. Water balance calculations provided an important validation of simulated sublimation at the watershed scale. Simulated snow sublimation across the study area was equivalent to 28% of winter precipitation on average, and the highest relative snow sublimation fluxes occurred during the lowest snow years. Snow sublimation from forested areas accounted for the majority of sublimation fluxes, highlighting the importance of canopy and sub-canopy surface sublimation in this region. Simulations incorporating the effects of tree mortality due to bark-beetle disturbance resulted in a 4% reduction in snow sublimation from forested areas. Snow sublimation rates corresponding to climate warming simulations remained unchanged or slightly increased, but total sublimation losses decreased by up to 6% because of a reduction in snow covered area and duration.
    Print ISSN: 0043-1397
    Electronic ISSN: 1944-7973
    Topics: Architecture, Civil Engineering, Surveying , Geography
    Published by Wiley-Blackwell on behalf of American Geophysical Union (AGU).
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