Kirstein, Inga Vanessa (2026): Master track of HEINCKE cruise HE684 in 1 sec resolution (zipped, 23 MB) [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995237 (DOI registration in progress)