PS119 - Weekly Report No. 8 | 27 - 31 May 2019
After our storm on last Friday, the sea only calmed down very slowly and station work was only possible with two CTD stations in the late night towards [...] made about 60 km to the West of the spreading centre on its flank. There, the seafloor is parted by North-South orientated, parallel faults covered by young sediment, and we discovered both in the sediments

Area The study region covers an area of approx. 6500 km² in Alaska’s North Slope Territory including 5 observational sites, from north to south West Dock, Deadhorse/Prudhoe Bay, Franklin Bluffs, Sagwon and [...] about snow cover is necessary, since snow covers the ground for up to 9 months per year in Alaska’s North Slope. In addition to that, spatial and seasonal variability of snow cover can lead to large uncertainties [...] part 2 - requirements . . . . . . 1015 4.2.1 Ground heat flux . . . . . . . . . . . 10 4.2.2 Land-sea-fraction . . . . . . . . . . . 10 4.2.3 MODIS data gaps . . . . . . . . . . . 10 5 Results 11 5.1

ucar.edu/climate-data/hurrell-north-atlantic-oscillation-nao-index-station- based Based on exemplary training data sets with a regional focus on the North Atlantic and North Sea we are investigating chara [...] in marine systems. Preliminary schedule Introduction (lecture I) Overview of the North Atlantic system and the North Sea Fluctuations - large-scale relationships Spatial and temporal variability of drivers [...] 1 South North Atlantic Training Transect SoNoAT 2019 Course content RV Polarstern - PS 120 Stanley - Bremerhaven 02 June - 29 June 2019 2 Inhalt South North Atlantic Training Transect 2019 SoNoAT 2019

German Norwegian Ocean Forum
From the Arctic to the North Sea: this year’s German Norwegian Ocean Forum was held in Bremen’s Übersee Museum. The spotlight topic of the symposium, which was jointly organised

Today the German Norwegian Ocean Forum take place in Bremen. It is jointly organized by the Norwegian Embassy, Innovation Norway and the AWI. AWI director Antje Boetius guides through the program.

flight was carried out in cold air outbreak conditions, only very few clouds occurred in the north above close sea ice with only few leads, but the typical stratocumulus was present south of the marginal ice [...] position over the marginal sea ice zone that was not yet affected by the front. We could characterize a cloud which spread into the marginal ice zone and ended when the sea ice fraction reached 100%. The [...] 2019 On-ice flow with warm air advection, clouds over the marginal sea ice zone 3hr 48 min 4hr 8 min 06 April 2019 Low level clouds over sea ice with many leads 5hr 27 min 5hr 50 min • Eagle/Hawk: No problems

be performed although during complex cloud conditions over the sea ice north of Svalbard. First, a thin low cloud layer was probed north of the Whaler’s Bay polynya with no mid-level clouds above it. Further [...] Saturday 30th March. Sunday, 24th March To reach the scientific goals of our campaign we need data over sea ice in cloudy conditions but also over open water. Moreover, we are interested in the effect of clouds [...] conditions were good enough to perform a flight over both the ice free part of Fram Strait but also over sea ice, this time up to 83° N. Moreover, strong wind is helpful for the turbulence measurements since

planning adjusted to the sea ice situation and expected weather conditions in the coming days. Thu, 21 March The first science flight was performed flying to the region about 100 km North of Svalbard. During [...] it was important to become familiar with the sea ice situation (fraction of thin ice/leads, roughness etc.) and to relate the visual impression to the sea ice maps that are available from different sources [...] forecast ranges. Nevertheless, we could carry out our next flight to the North. A pattern with legs above, in and below clouds over sea ice was flown and combined cloud radar and drop sonde measurements followed

des NoSoAT (North South Atlantic Transect) Teams vor dem Werfen des tägli- chen XBTs. Foto: Pauhla McGrane, Marine Institute, Galway. Cover : Expedition participants of the NoSoAT (North South Atlantic [...] Weather Conditions during PS95 5 3. The North South Atlantic Transect (NoSoAT) 9 4. Atmospheric Measurements of Aerosols, Clouds, and Cloud Microphysics within the Mobile Sea Facility Oceanet 17 5. Calibration [...] the central North- and East Atlantic a light southeasterly breeze predominated at first. During the following day, the southeast wind increased to force 6–7 Beaufort and an associated sea state of 1.5

Sunday (Nov. 13) while we steamed the southwestern North Sea. A sea state of 2.5 m was forced. After the passage of the cold front winds veered north and freshened up to Bft 6 for short times. The high [...] content of sea water is calculated as the vertical integration of temperature multiplied by the sea water density and specific heat capacity. Thus, heat contents (H) of sea water along the North South Atlantic [...] Stipendiaten des NoSoAT16 (North South Atlantic Transect) Programms vor Beginn des Trainings an Bord der Polarstern (Foto: Eva Brodte, AWI). Cover: Scholars of the NoSoAT16 (North South Atlantic Transect)