156 'LAMEX 1' - Central Arctic and Northeast Greenland with RV Polarstern Expedition PS156 (LAMEX 1 – L omonosov- A lpha- M orris Jesup Rise Ex pedition 1) with the research vessel Polarstern will take [...] prevailing during the expedition. After departing Tromsø, RV Polarstern will first transit to Longyearbyen (Svalbard), collecting continuous hydroacoustic data along the way. The scientific program will [...] planned in total. Upon completion of the scientific program, RV Polarstern will return to Bremerhaven, where the expedition will end on 14 October 2026. The LAMEX 1 expedition is part of the ERC Synergy