Turbulent recirculation

week was characterized by intense station work both in the West Spitsbergen Current and in central Fram Strait.

The Expedition PS 99 from Bremerhaven to Tromsø

lead to study areas northwest of Bear Island, south of Spitsbergen and in the central and eastern Fram Strait.

Human imprints and final considerations

here on board assessing anthropogenic impacts on the marine ecosystem on our way from Bremerhaven to Fram Strait (and back) and at HAUSGARTEN observatory.

Research infrastructure

Isotope Facility Potsdam Stable Isotope Facility Bremerhaven Nutrient Facility Observatories Ocean: FRAM Water: COSYNA Meteorology Geophysics Ships Polarstern Heincke Uthörn Mya II Aade Stations Neumayer

Freedom!

indispensable “single punishment” on Pentecost Monday, May 24, and set sail for our expedition to the Fram Strait, the passage between Greenland and Spitsbergen.

Polarstern Sets Sail for the Arctic

Arctic Expedition
On Whit Monday, 24 May 2021, the Polarstern will set sail for the Arctic. In Fram Strait, between Greenland and Svalbard, more than 50 participating scientists will resume the long-term

MELTEX-II

ice conditions in the main export pathway of Arctic sea ice, the Fram Strait, and in the Lincoln Sea delivering the thickest ice to Fram Strait. Based on measurement data we will determine sea ice thickness

MELTEX-II

ice conditions in the main export pathway of Arctic sea ice, the Fram Strait, and in the Lincoln Sea delivering the thickest ice to Fram Strait. Based on measurement data we will determine sea ice thickness

Circulation in the Arctic Ocean and the Nordic Seas

changes in the warm northward flow, we monitor the Atlantic Water in the West Spitsbergen Current in Fram Strait by use of an oceanographic mooring array since 1997. Surface waters are densified through cooling [...] storing) Beaufort Gyre, and the Transpolar Drift, which drives the freshwater towards Greenland and Fram Strait from where it is eventually exported to the subpolar North Atlantic. The Arctic freshwater [...] contributes to a destabilization of the Greenland ice streams. We observed Atlantic water warming in Fram Strait and this water is likely to affect the (presently) stable North East Greenland ice stream (NEGIS)

PPR_Arctic

only (Fram Strait). The western, sea ice-dominated, part of Fram Strait proved to have short, late (middle May) and time varying phytoplankton blooms. At the marginal sea ice zone of the western Fram Strait [...] warm and salty Atlantic waters, experienced earlier (end of April) and longer blooms. In the eastern Fram Strait, stratification due to solar warming proved to act as a guiding factor for the the open ocean [...] Boetius, A. (2014) Influence of the physical environment on phytoplankton blooms: a case study in the Fram Strait , Journal of Marine Systems, 132 , pp. 196-207. doi: 10.1016/j.jmarsys.2013.11.008 , hdl:10013/epic