Monthly mean temperature and salinity outputs from the Southern Ocean high-resolution (SOhi) simulation
Data files
Jan 19, 2024 version files 79.07 GB
Abstract
The Southern Ocean high-resolution (SOhi) is a MITgcm simulation developed to understand ocean-ice interactions along the margin of Antarctica and better quantify ocean thermal forcing on the ice shelves. SOhi is a high-resolution extension of SOSE with a longitudinal resolution of 1/24 degrees (~1.2 km at 75S) from 85.5S and telescopes to 1/12 between 40S and 30S. It has a northern boundary at the equator forced by ECCOv4r4, uses a locally improved bathymetric model from GEBCO 2020, atmospheric forcing from ERA-5, and contains thermodynamically active ice shelves. SOhi is used to understand the mechanisms of heat transport around Antarctica in order to best constrain ocean thermal forcing on the Antarctic Ice Sheet.
README: Southern Ocean high-resolution (SOhi) simulation outputs
Monthly mean potential temperature (C) and practical salinity (psu) outputs for 12 months of SOhi simulations spanning October 2005 to September 2006.
Description of the data and file structure
Each monthly SOhi outputs are store in a zipped - .zarr format.
Unzip the provide data and the zarr store can be accessed with python using:
import zarr
dataset = zarr.open('path/to/SOhi_outputs.zarr', mode='r')
var_data = dataset['var_name']
Replace "var_name" with variable name.
Available variables in monthly mean outputs are:
lat dim = (2344)
Latitude dimension at cell's center
lon dim = (8640)
Longitude dimension (0 - 360) at cell's center
depth dim = (225)
Depth dimension at cell's center
date dim = (1)
Date of data in 'yyyy_mm' string
theta dim = (225, 2344, 8640)
SOhi's temperature field in potential temperature (C). Dimensions are (depth, lat, lon). No data is replaced with np.nan.
salt dim = (225, 2344, 8640)
SOhi's salinity field in practical salinty (psu). Dimensions are (depth, lat, lon). No data is replaced with np.nan.
Bathymetry and Icedraft area available in misc.zarr
icedraft dim = (2344, 8640)
Depth of the ice draft (in meter) from the surface
bathymetry dim = (2344, 8640)
Depth of the sea floor (in meters) from the surface
Methods
Monthly mean potential temperature (C) and practical salinity (psu) outputs for 12 months of SOhi simulations spanning October 2005 to September 2006 - including the ice draft and modified GEBCO 2020 bathymetry used in the SOhi simulation.