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  • 40ka; Antarctica; Antarctic Ice Sheet; Basal melt rates; Glacial climate; Last Glacial Maximum; pre-industrial  (1)
  • AWI_PaleoClimate; Last Glacial Maximum; Laurentide ice sheet reconstructions; Paleo-climate Dynamics @ AWI; Paleoclimate Modelling Intercomparison Project Phase III (PMIP3); Sea surface temperature; Surface air temperature  (1)
  • (9E)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene, per unit mass total organic carbon; (9Z)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene, per unit mass total organic carbon; 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene, per unit mass total organic carbon; 24-ethylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Methylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Methylcholesta-5,22E-dien-3beta-ol, per unit mass total organic carbon; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit mass total organic carbon; Age; AGE; Age, error; Antarctic sea ice; ANT-XXXI/3; AWI_Envi; AWI_Paleo; Branched and isoprenoid tetraether index; Bransfield Strait; Carbon, organic, total; Carbon/Nitrogen ratio; cholesta-5,24-dien-3beta-ol, per unit mass total organic carbon; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Diatoms, sea-ice; Gas chromatography - Mass spectrometry (GC-MS); highly branched isoprenoids; IPSO25; Lead-210 excess; Lead-210 excess, error; Modern analog technique (MAT), D274/28/4an; MUC; MultiCorer; Paleoclimate; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Phytoplankton biomarker Brassicasterol IPSO25 index; Phytoplankton biomarker Dinosterol IPSO25 index; Phytoplankton biomarker HBI E-Triene IPSO25 index; Phytoplankton biomarker HBI Z-Triene IPSO25 index; PIPSO25 calculated after Vorrath et al., 2019; Polarstern; Polar Terrestrial Environmental Systems @ AWI; PS97; PS97/068-2; sea ice proxy; Sea surface temperature, summer; Sedimentation rate per year; SOTOH, SOT based on RI-OH caculated after Lü et al., 2015 (Eq. 13 and 14); SOTTEX, SOT based on TEXL86 calculated after Kim et al., 2010 (Eq. 7 and 8); Sub-surface ocean temperature; Transfer function, IKM – D336/29/3q
  • 2020-2024  (2)
Document type
Keywords
Publisher
Years
  • 2020-2024  (2)
Year
  • 1
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    Climate model (Consortium for Small-scale Modeling, COSMOS) results of different Laurentide Ice Sheet reconstructions during the Last Glacial Maximum in NetCDF format (2021)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: Herein, we publish the simulated global annual mean sea surface temperature (THO), surface air temperature (SAT) over a time period of 100 years retrieved from equilibrium climate simulations for the Last Glacial Maximum (~21 ka BP). We investigate the range of temperature variability that occurs in response to uncertainties in the boundary conditions of Laurentide ice sheet (LIS). We performed LGM simulations, applying six different LIS reconstructions (ICE-6g, GLAC-1a, ANU, Gowan, Licciardi and PMIP3) in a fully coupled atmosphere-ocean-sea-ice model. The model data has been used in the publication by Hossain et al., 2021. The climate data has been produced with Consortium for Small-scale Modeling (COSMOS; ECHAM5/JSBACH/MPIOM/OASIS3), utilized at a resolution of T31 in the atmosphere with 19 vertical layers and a resolution of GR30 (~3.0°x1.8°) in the ocean with 40 vertical layers. The model setup refers to boundary conditions (terrestrial topography, ocean bathymetry), greenhouse gas concentrations (CO2 = 185 ppm; CH4 = 350 ppb; N2O = 200 ppb) and orbital forcing representative for the LGM and are imposed in accordance with the PMIP3 protocol. We also run COSMOS using PI boundary conditions (ice-sheet topography, orbital forcing, greenhouse gas concentrations and ocean bathymetry). Details on setup and identifiers of LGM model simulations can be found in Table S1 of Hossain et al., 2021.
    Keywords: AWI_PaleoClimate; Last Glacial Maximum; Laurentide ice sheet reconstructions; Paleo-climate Dynamics @ AWI; Paleoclimate Modelling Intercomparison Project Phase III (PMIP3); Sea surface temperature; Surface air temperature
    Type: Dataset
    Format: application/zip, 22.8 MBytes
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Basal melt rates in equilibrium simulations of the Antarctic ice sheet under pre-industrial, 40 ka, and Last Glacial Maximum ocean conditions using the Parallel Ice Sheet Model (PISM 1.1) (2021)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: We present basal melt rates for the ice shelves in equilibrium simulations of the Antarctic ice sheet (AIS), using the 3D thermodynamical Parallel Ice Sheet Model (PISM) version 1.1 with PICO as ocean component. The applied climate forcing consists of yearly mean present-day temperature and precipitation fields from RACMO2.3 (RACMO2 ANT27), and 400-800 m depth average ocean temperature and salinity, obtained from simulations using the atmosphere-ocean general circulation model COSMOS (ocean model MPIOM). COSMOS was run using pre-industrial settings (PID; 278 ppm CO2), settings from 40 kyr ago (40ka; 195 ppm CO2), and Last Glacial Maximum settings (LGM; 185 ppm CO2). All simulations are started with present-day bedrock conditions, and a present-day AIS size (Bedmap2). The steady state simulations are conducted by applying the same climate forcing over 200 kyr, after a thermodynamical spin-up (no mass changes) of 200,100 yr.
    Keywords: 40ka; Antarctica; Antarctic Ice Sheet; Basal melt rates; Glacial climate; Last Glacial Maximum; pre-industrial
    Type: Dataset
    Format: application/zip, 164.5 kBytes
    Location Call Number Limitation Availability
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    DATA PANGAEA
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