Nehrke, Gernot (2026): Master track of HEINCKE cruise HE680 in 1 sec resolution (zipped, 8 MB) [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993659 (DOI registration in progress)