field expedition to the Central Arctic ever. Key element is the drift of the research icebreaker Polarstern frozen into the pack ice over an entire year. Over all, more than 300 scientists from 17 countries [...] to analyzing and exploiting the data over the coming years to decades. Beyond an ice camp around Polarstern, a distributed network of observations, airborne and satellite observations contribute to the field

gravity meters from LaCoste and Romberg for the purpose of these so-called tie measurements. On board Polarstern, underway measurements are made using a KSS-32 gravimeter from Bodenseewerke. Airborne measurements

Heincke Sampling in Zodiac, King George Island Sampling of glacier meltwater, King George Island Polarstern brine sampling in the central Arctic sea ice samlpling in the central Arctic ice-tank experiment

ner-Institut) Zooplankton time series of the Polarstern expeditions Background Several long-term data sets exist which have been collected on RV Polarstern for the past 30 years but these have never previously [...] particularly for the Weddell Sea and adjacent areas such as the Scotia and Lazarev Seas Summary of Polarstern stations in the Antarctic where zooplankton was sampled and analyzed (Photo: Alfred-Wegener-Institut)

collections. And needless to say, AWI researchers also bring us new samples every year from their “Polarstern” expeditions,” explains Friedel Hinz. Diatoms from Oamaru, New Zealand (Photo: Alfred Wegener Institut)

___ Diving from RV Polarstern RV Polarstern (Photo: Alfred Wegener Institut) The research vessel Polarstern operates in the southern and arctic ocean. As an icebreaker RV Polarstern enables to enter ice [...] North Sea or the Atlantic from the RV Heincke . Dives from our larger research vessels (incl. RV Polarstern) are done using RHIB’S or inflatables according to the ESDP-guidelines „Scientific diving from [...] to conduct diving supported underwater research under ice shields. For further details about RV Polarstern click here . _________________________ Diving at the German Polar Station Neumayer III (Antarctica)

shipboard manipulation experiments with natural phytoplankton assemblages are planned onboard the Polarstern in the austral summers of 2016 and 2017. In addition, in situ uptake rates and measurements of

The impact of krill and salps on Fe biogeochemistry in Fe-limited oceanic waters The icebreaker Polarstern in Ryder Bay, Western Antarctic Peninsula. Photo: S. Trimborn (Photo: Alfred-Wegener-Institut) [...] experiments with grazers (krill and salps) and their grazing products will be performed during the Polarstern expedition PS112 in the northern WAP in 2018. This project will be carried out in close cooperation

board the RV Polarstern in collaboration with Dr. Christel Hassler (Swiss Polar Institute) from 16 February 2016 to 8th April 2016 (PS97, ANT-XXXI/3). The ProIron team onboard Polarstern in February 2016

this time - have a rather low resolution. Precipitation Precipitation measurements on board of Polarstern started at 1994-10-18 (DOSA 450, Friedrichs, Germany). The sensor is unable to measure solid p