Dataset abstract This dataset contains decoded reports of surface weather observations in the Southern Ocean made aboard the R/V Akademik Tryoshnikov during the Antarctic Circumnavigation Expedition (ACE), in the austral summer of 2016/2017. The observations were made by a meteorologist on board the ship and sent as telegrams encoded with World Meteorological Organisation (WMO) FM 13 code form. Posteriorly, the telegrams were decoded to produce this dataset. The telegrams were recorded on a 3-hourly basis and contain information about present and past weather; latitude, longitude, speed and direction of the ship; visibility; type, height and amount of clouds; speed and direction of wind; air, dew-point and sea-surface temperatures; barometric pressure; period, height and direction of waves; concentration of sea ice; etc. For more information on this type of report, please see the WMO Manual on Codes (WMO-No.306), Volume I.1, Part A. The original encoded files have been published separately (Veledin and Gorodetskaya, 2020; DOI 10.5281/zenodo.3734884). Data files have undergone no processing or quality-checking, therefore, if the variable you need is available in another ACE dataset, it is recommended to use the quality-checked data. Quality-checked meteorological data collected during ACE have been published separately (Landwehr et al., 2019; DOI 10.5281/zenodo.3379590). Dataset contents ACE_telegram_decoded_YYYY_MM_DD_HHh.txt, data file, ASCII comma-separated README.txt, metadata, text file data_file_header.txt, metadata, text file Telegram_code_format.pdf, metadata, portable document format Dataset license This set of decoded meteorological telegrams are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0) whose full description can be found at https://creativecommons.org/licenses/by/4.0/

{"references": ["David W H Walton, & Jenny Thomas. (2018, November 22). Cruise Report - Antarctic Circumnavigation Expedition (ACE) 20th December 2016 - 19th March 2017 (Version 1.0). Zenodo. http://doi.org/10.5281/zenodo.1443511", "World Meteorological Organization (2018). Manual on Codes - International Codes, Volume I.1: Part A - Alphanumeric Codes. (2018: 2011 edition updated). Geneva, Switzerland, WMO, 466pp. (WMO-No. 306: I.1.A). https://library.wmo.int/index.php?lvl=notice_display&id=13617", "Veledin, V. and Gorodetskaya, I. (2020). Original telegrams of surface weather, ocean and ice state observations in the Southern Ocean on board the R/V Akademik Tryoshnikov during the Antarctic Circumnavigation Expedition (ACE) in the austral summer of 2016/2017. (Version 1.0) [Data set]. Zenodo.", "Diogo, L. and Gorodetskaya, I. (2020, April 17). Python script to decode WMO FM13 SHIP telegram data recorded during the Antarctic Circumnavigation Expedition (ACE) (Version 0.1.0). Zenodo. http://doi.org/10.5281/zenodo.3735028"]}

The Antarctic Circumnavigation Expedition was made possible by funding from the Swiss Polar Institute and Ferring Pharmaceuticals. Special thanks to the R/V Akademik Tryoshnikov crew and Arctic and Antarctic Research Institute (St Petersburg, Russia). I.G. thanks FCT/MCTES for the financial support to CESAM (UID/AMB/50017/2019) through national funds. This project has received funding from EPFL, Swiss Polar Institute and from Ferring Pharmaceuticals.