Data from a modelling study on the impact of Southern Ocean topographic features on the ocean and atmosphere

David Hutchinson, Agatha de Boer

This dataset accompanies a study that investigates the impact of large topographic ridges in the Southern Ocean on the ocean circulation, the sea surface temperature, and the overlying winds and precipitation.

The control simulation was 1500-year long run and using modern geography and pre-industrial boundary conditions. After that, four sensitivity experiments were performed in which the barriers in Drake Passage, the Mid-Atlantic ridge, the Kerguelen Plateau, and the Campbell plateau were flattened, respectively.

The data are presented in netcdf format and represent 100 year averages at the end of the 1500 long simulations integrated upper layer velocities, sea surface temperature, sea level pressure, evaporation, and surface winds.

Citation

David Hutchinson, Agatha de Boer (2022) Data from a modelling study on the impact of Southern Ocean topographic features on the ocean and atmosphere. Dataset version 1. Bolin Centre Database. https://doi.org/10.17043/hutchinson-2022-southern-ocean-1

References

de Boer AM, Hutchinson DK, Roquet F, Sime LC, Burls NJ, Heuzé C (2022) The impact of Southern Ocean topographic barriers on the ocean circulation and the overlying atmosphere. J Climate. https://doi.org/10.1175/JCLI-D-21-0896.1

Data description

There are two main folders:

• main_manuscript
• supplementary

main_manuscript folder

Includes five subfolders with the following names and content:

• ocean: 100 year annual means of ocean data for each simulation.
• atmos_model_level: 100 year annual means of atmosphere data, on model levels (hybrid sigma levels)
• atmos_plevel: 100 year annual means of selected fields on pressure levels. These fields are horizontal velocities, geopotential height, and sea level pressure
• acc_series: a 1500 year time series of Antarctic Circumpolar Current transport for each simulation.
• mld_series: a collection of data files of Mixed-Layer Depth time series.
  • Use the python script mld_5series.py to reproduce Figure 7 of the manuscript (De Boer et al. 2022).

In each case, there are self-descriptive netcdf files containing the data. File endings correspond to simulations according to:

• ctl: control run
• camp: Campbell rise flattening
• drake: Drake Passage flattening
• kerg: Kerguelen Plateau flattening
• midat: Mid-Atlantic ridge flattening
• allflat: All regions flattening at once

supplementary folder

Includes twelve subfolders with the following names:

• FigS01
• FigS02
• FigS03
• FigS04-S06
• FigS07
• FigS08
• FigS09
• FigS10
• FigS11
• FigS12
• FigS13
• FigS14

These contain data files plotted in each of the Supplementary Figures in De Boer et al. (2022).

All data are provided in one zip file (795 MB).

Comments

For any questions, please contact David Hutchinson at the address under Contact information.