@incollection{haas2008hsit, author={Christian {Haas} and Andreas {Pfaffling} and Stefan {Hendricks} and Lasse {Rabenstein} and Jean-Louis {Etienne} and Ignatius {Rigor}}, title={{Helicopter-borne sea ice thickness measurements during POLARSTERN cruise ARK-XX/2 in the Arctic Ocean from flight HEM$\_$ARK20$\_$04b}}, year={2008}, doi={10.1594/PANGAEA.783992}, url={https://doi.org/10.1594/PANGAEA.783992}, note={In supplement to: Haas, C et al. (2008): Reduced ice thickness in Arctic Transpolar Drift favors rapid ice retreat. Geophysical Research Letters, 35, L17501, https://doi.org/10.1029/2008GL034457}, type={data set}, publisher={PANGAEA} }