Five-minute average cruise track and ship velocity of the Antarctic Circumnavigation Expedition (ACE) undertaken during the austral summer of 2016/2017.

• Main Authors: Landwehr, Sebastian, Thomas, Jenny, Schmale, Julia
• Format: Dataset
• Language: English
• Published: Zenodo 2020
• Subjects: track; velocity; Southern Ocean; Antarctica; Antarctic Circumnavigation Expedition; ACE; Antarctic; The Antarctic; Austral; Antarc*; Swiss Polar Institute
• Online Access: https://dx.doi.org/10.5281/zenodo.3772377; https://zenodo.org/record/3772377

Dataset abstract The ship's cruise track, velocity, course over ground and heading at one-minute resolution for all five legs of the Antarctic Circumnavigation Expedition (ACE) are derived from a combination of: - the latitude/longitude record of the Quality-checked, one-second cruise track for 21.12.2016 to 11.04.2017. - the latitude/longitude record of the Uncorrected inertial navigation dataset (one-second resolution) for 27.11.2016 to 21.12.2016 - the latitude/longitude record of the raw meteorological data (30-second resolution) from 17.11.2016 to 27.11.2016 - where no latitude/longitude record at one-second resolution is available and the ship's velocity was above 2 meters per second, the three-second resolution record of the true and relative wind speed and direction, as well as the heading are used to re-calculate the ship's velocity under the assumption that the course of the ship equalled the heading. Basic filtering are applied to remove erroneous observations before the data are averaged to a one-minute resolution (DOI: 10.5281/zenodo.3752667). The one-minute time series are averaged to five-minute resolution, whereby the vector averaging is used for the platform velocity and orientation. For the latitude and longitude coordinates a simple average is calcualted, i.e., ignoring the curvature of the Earth. Short stretches of missing coordinates are filled with linear interpolation between neighbouring observations. Dataset contents cruise-track-5min-legs0-4.csv, data file, comma-separated values data_file_header, metadata, text format README.txt, metadata, text format ace-cruise-track-5min-legs0-4-change-log.txt, metadata, text format Change log v1.1 - Added additional data coverage from 2016-11-17 - 2016-11-22 inclusive. Updated README.txt with information about data coverage. Added this change_log file. v1.0 - Initial release of averaged cruise track data set. Dataset license This 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.