Whale sightings during POLARSTERN cruise ANT-XXIII/6@en

Date/Time is given in UTC. Certainty of identification: definite if observer clearly identified the species. The number of individuals is binned according to the options given in the data acquisition software: 1, 2, 3, less equal 5, less equal 10, greater than 10, greater than 20. More precise values may exist, due to observer comments. See doi:10.1594/PANGAEA.544839 and doi:10.1594/PANGAEA.544831 for weather condition and doi:10.1594/PANGAEA.666163 for the sea surface oceanography.