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  • 1
    Publication Date: 2023-01-30
    Description: This dataset contains results from simulations with the AWI Earth System Models AWI-ESM with two different model setups: one with an interactive ice sheet model (PISM) for the Greenland ice sheet domain and one without. With both model setups, the Representative Concentration Pathways scenarios RCP4.5 and RCP8.5 were simulated. The simulation runs were prolonged to the year 2200. We investigated the effect of the incorporated ice sheet model on the Atlantic meridional overturning circulation. As the ice sheet is not only melting but also growing in some areas, the freshwater release is partly compensated. Therefore, the effect on the Atlantic meridional overturning circulation is rather small. The dataset contains time series of global average temperature, atmospheric and oceanic freshwater fluxes for the Atlantic catchment area, several ice volume fluxes of the Greenland ice sheet, and the AMOC index. Furthermore, it contains spatial data mostly as anomalies (the last 30 year average minus the control state) of the Greenland ice sheet thickness and mass balance, sea surface salinity and sea ice concentration and precipitation minus evaporation and vertical profiles of anomalies of temperature, salinity, and density for the regions of deep water formation in the North Atlantic. All files are in the NetCDF format.
    Keywords: AMOC; coupled climate model; future scenarios; Greenland ice sheet
    Type: Dataset
    Format: application/zip, 160.7 MBytes
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  • 2
    Publication Date: 2024-04-20
    Description: This dataset contains the results of a simulation using the global climate model AWI-ESM coupled with the interactive ice sheet model PISM. The simulation consists of a historical run (1850-2014) and a future scenario using the Representative Concentration Pathways scenarios RCP8.5. This scenario spans the years 2006-2100 and was prolonged to the year 2299 with fixed greenhouse gas concentrations. The variables provided are temperature at 2 meters above surface and ice depth. The data are used for a mathematical model to describe long-term changes in extreme temperatures (Contzen, Dickhaus and Lohmann, 2023). This dataset contains spatial data on a regular lon lat grid (0.5°x0.5° horizontal resolution) using monthly time steps. All files are in the NetCDF format.
    Keywords: AWI Earth System Model coupled with the interactive ice sheet model PISM; Earth system model; future scenarios; Model output, NetCDF format; Model output, NetCDF format (File Size); Temperature
    Type: Dataset
    Format: text/tab-separated-values, 10 data points
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  • 3
    Publication Date: 2024-06-12
    Description: This dataset contains the results of global climate model simulations (AWI-ESM coupled with an interactive ice sheet model (PISM)). Historical (1850-2014) and the representative Concentration Pathways scenarios (RCP4.5, RCP8.5) were simulated. The RCP4.5 scenario spans the years 2006-2100 and was prolonged to the year 2199 with fixed greenhouse gas concentrations. The RCP8.5 scenario spans the years 2006-2100 and was prolonged to the year 2215 with fixed greenhouse gas concentrations. The North Atlantic ocean temperatures are used as input for the biological growth model (Butzin and Pörtner, 2016; Sokolova et al., 2021), simulating the effect of ocean temperature change on Atlantic cod growth function. This dataset contains spatial data on a regular lon lat grid (0.5°x0.5° horizontal resolution) with monthly time step for the North Atlantic. We extracted temperature data for 0–580 m (0–21 vertical levels) which represent the observed depth range of cod distribution. The areas with depths below 600m were blanked out. All files are in the NetCDF format.
    Keywords: Binary Object; Binary Object (File Size); COD; Earth system model; File content; North_Atlantic; North Atlantic; ocean temperature; Paleo Modelling; PalMod
    Type: Dataset
    Format: text/tab-separated-values, 1146 data points
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  • 4
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    Wiley
    In:  EPIC3Geophysical Research Letters, Wiley, 47(16), pp. e2019GL086810, ISSN: 0094-8276
    Publication Date: 2020-09-14
    Description: We simulate the two Coupled Model Intercomparison Project scenarios RCP4.5 and RCP8.5, to assess the effects of melt‐induced fresh water on the Atlantic meridional overturning circulation (AMOC). We use a newly developed climate model with high resolution at the coasts, resolving the complex ocean dynamics. Our results show an AMOC recovery in simulations run with and without an included ice sheet model. We find that the ice sheet adds a strong decadal variability on the freshwater release, resulting in intervals in which it reduces the surface runoff by high accumulation rates. This compensating effect is missing in climate models without dynamic ice sheets. Therefore, we argue to assess those freshwater hosing experiments critically, which aim to parameterize Greenland's freshwater release. We assume the increasing net evaporation over the Atlantic and the resulting increase in ocean salinity, to be the main driver of the AMOC recovery.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
    Format: application/pdf
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