Please note that access to this dataset is restricted according to the DestinE Access Policy and may only be granted to users with upgraded access.

Climate DT high resolution daily data on ocean and sea ice, IFS-NEMO model, SSP3-7.0 scenario

This dataset contains surface ocean and sea ice variables from the second generation Climate Adaptation Digital Twin of the Destination Earth initiative. It includes data from the SSP3-7.0 Scenario (2015–2049) of the IFS-NEMO model. This data was regridded from the original HEALPix H1024 grid to a regular latitude-longitude grid at approximately 0.044°. The temporal resolution is daily.

The dataset's chunking is optimized for regional and timeseries analysis.

Accessing this dataset requires a Zarr v3-compatible library (e.g., zarr-python >= 3.x). Python users can upgrade via pip install "zarr>3".

Access is restricted to Destination Earth users with Upgraded Access.

How to download the data

The default (and preferred) way to access the data requires accessing the api.earthdatahub.destine.eu domain and a valid API key.

Method 1: quick access

It is possible to include the token directly in the URL.

1import xarray as xr
2
3xr.open_dataset(
4    "https://edh:<your personal access token>@api.earthdatahub.destine.eu/climate-dt-2/IFS-NEMO-SSP3-7.0-o2d-daily-high-v0.zarr",
5    chunks={},
6    engine="zarr",
7    zarr_format=3,
8)

Method 2: advanced access

The Python snippet gather the token from a netrc file.

It's required to before running the code snippet below.

1import xarray as xr
2
3xr.open_dataset(
4    "https://api.earthdatahub.destine.eu/climate-dt-2/IFS-NEMO-SSP3-7.0-o2d-daily-high-v0.zarr",
5    storage_options={"client_kwargs":{"trust_env":True}},
6    chunks={},
7    engine="zarr",
8    zarr_format=3,
9)

Variables

Short Name	Units	Description
avg_hc300m	J m^-2	Time-mean vertically-integrated heat content in the upper 300 m
avg_hc700m	J m^-2	Time-mean vertically-integrated heat content in the upper 700 m
avg_hcbtm	J m^-2	Time-mean total column heat content
avg_siconc	Fraction	Time-mean sea ice area fraction
avg_sithick	m	Time-mean sea ice thickness
avg_siue	m s^-1	Time-mean eastward sea ice velocity
avg_sivn	m s^-1	Time-mean northward sea ice velocity
avg_sivol	m³ m^-2	Time-mean sea ice volume per unit area
avg_snvol	m³ m^-2	Time-mean snow volume over sea ice per unit area
avg_sos	g kg^-1	Time-mean sea surface practical salinity
avg_tos	K	Time-mean sea surface temperature
avg_zos	m	Time-mean sea surface height