caused by accelerated atlantification and climate change impact. Lead Scientist Ecological Chemistry: Uwe John ArcWatch Interaction and feedbacks between ocean structure and dynamics, sea ice physics, bioge [...] Reykjavík - East Greenland - Longyearbyen, 06/03/2022 – 06/15/2022 GreenHAB II R/V Maria S. Merian: St. John's, Canada - Nuuk, Greenland 25.06.2017 - 19.07.2017 PS 100 Polarstern Central Arctic 07/08 2016 HE516 [...] s from Ecological Chemistry: Scarlett Trimborn Florian Koch Christian Völkner Jasmin Stimpfle Kai-Uwe Ludwichoswki Matthias Woll Frederik Bussmann HAFOS long-term time series Long-term time series in the