<strong>Dataset abstract</strong> ERA-5 fields at 1-hour temporal and grid size of 0.25° x 0.25° (0.5° x 0.5° for wave variables) have been downloaded from https://cds.climate.copernicus.eu/api/v2/resources/reanalysis-era5-single-levels. The data are interpolated using two methods: 'nearest': the value of the nearest ERA-5 grid cell is use; 'linear': the values from the nearest grid cells in space and time are linearly interpolated to the [date_time, latitude, longitude] coordinate of the ship providing a number of atmospheric, land and oceanic climate variables interpolated along the five-minute cruise track. The data repository can be checked out at: https://renkulab.io/gitlab/ACE-ASAID/ecmwf-interpolation-to-cruise-track <strong>Dataset contents</strong> era5-on-cruise-track-5min-legs0-4-linear.csv, data file, comma-separated values era5-on-cruise-track-5min-legs0-4-nearest.csv, data file, comma-separated values interpolate-to-shiptrack.py, processing script, text/x-python download-ecmwf.ipynb, processing script, application/x-ipynb+json ecwmf_interpolate.zip, processing scripts, zip file data_file_header, metadata, text format README.txt, metadata, text format <strong>Dataset license</strong> This interpolation of the ERA-5 reanalysis output to the five-minute averaged cruise track and velocity dataset is made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0) whose full text can be found at https://creativecommons.org/licenses/by/4.0/ The Antarctic Circumnavigation Expedition was made possible by funding from the Swiss Polar Institute and Ferring Pharmaceuticals. SL received funding from the Swiss Data Science Center project c17-02. This dataset was created as part of the ACE-DATA project (Swiss Data Science Center project c17-02) and contains modified Copernicus Climate Change Service information [2020]. {"references": ["Copernicus Climate Change Service information [2020]. https://doi.org/10.24381/cds.adbb2d47", "https://renkulab.io/gitlab/ACE-ASAID/ecmwf-interpolation-to-cruise-track", "Landwehr, Sebastian, Thomas, Jenny, & Schmale, Julia. (2020). Five-minute average cruise track and ship velocity of the Antarctic Circumnavigation Expedition (ACE) undertaken during the austral summer of 2016/2017. (Version 1.1) [Data set]. Zenodo. http://doi.org/10.5281/zenodo.3772377"]}