l zone between two water masses: the North Sea water and the coastal water. The latter is of lower salinity and its intrusion with saline water from the North Sea is responsible for an intensive mixing [...] distribution in the North Sea. April mean (1902-1954) from Schulz (2009). Black square represent Helgoland Roads station. High-salinity events are related to the influx of North Sea water (Wiltshire et [...] phylogenetics of cryptic species along the West Antarctic (Antarctic Peninsula, Bellingshausen Sea, Amundsen Sea, Ross Sea), which except for the northernmost tip of the Antarctic Peninsula is largely unstudied

Spectrometers for Atmospheric Chartography SEOM Scientific Exploitation of Operational Missions SeaWiFS Sea-viewing Wide Field-of-view Sensor SoW Statement of Work TROPOMI TROPOspheric Monitoring Instrument [...] Bréon, F. M. 2005. Remote sensing of phytoplankton groups in case 1 waters from global SeaWiFS imagery. Deep Sea Research Part I: Oceanographic Research Papers, 52(11), 1989-2004. Alvain, S., C. Moulin [...] , Ebenhöh, W. and Ruardij, P., 1995. The European regional seas ecosystem model, a complex marine ecosystem model. Netherlands Journal of Sea Research, 33(3), pp.233-246. Ben Mustapha Z., Alvain S., Jamet

Spectrometers for Atmospheric Chartography SEOM Scientific Exploitation of Operational Missions SeaWiFS Sea-viewing Wide Field-of-view Sensor TOA Top of atmosphere UB University of Bremen VRS Vibrational [...] The Longhurst (Longhurst 2010) biogeochemical provinces are: Atlantic Arctic - ARCT, North Atlantic Drift - NADR, North Atlantic Subtropical Gyral (West) - NASW, Canary Coastal - CNRY, Pacific Equatorial [...] butanone) were measured in the surface water and atmosphere in the South China Sea along the coast off Borneo and the Sulu Sea in November 2011. The Chla of several phytoplankton groups, such as haptophytes

platform types (e.g., research vessels and aircraft, sea ice tethered buoys, moorings, floats, gliders, autonomous underwater vehicles, ocean-based stations, sea floor crawlers, drones, etc.) is being automatically [...] adopted the terms describing eters measured provided by the 0 [14] which are widely used in e project SeaDataNet [15]. th regard to our AWI SensorML alues associated with individual ure values measured by [...] post-processing technique (e.g., algorithms related to illumination and distortion compensations for sea- floor images), we additionally plan an extensive algorithm harmonization effort within the FRAM project

2017
4 January 2017, 2 weeks and 5 days at sea. The morning finds Polarstern alongside the ice shelf edge, or, more precisely, at the north-eastern berth of Atka Sea Port.

the ecosystem The North Sea in the fast lane of change 24 Photo: S. Zankl 25 North Sea in the fast lane of change? Long-term investigations off Helgoland provide proof: the North Sea has become warmer [...] visitors first-hand insights into the habitat of the Wadden Sea. AWI’s North Sea office develops strategies for sustainable use of the North Sea in conjunction with the political needs and interests of [...] the future of the North Sea habitat? Transparent and fairy-like, Mnemiopsis leidyi, also known as the “sea walnut”, looks harmless. When this comb jellyfish appeared in the North Sea for the first time

million square kilometres, the Arctic Ocean also includes large shallow shelf seas, such as the Laptev Sea and Barents Sea north of Russia. Large parts of the Arctic Ocean are fully or seasonally ice covered [...] Ocean. The extremely low sea ice extent in September 2012 is shown as a white/blue area. The pink line indicates the mean sea ice extent in February, the yellow line the mean sea ice extent in September [...] years has been shrinking at unexpected rates. The sea ice is transported from the shelves via transpolar drift into the Fram Strait, the only deep-sea connection between Arctic and Atlantic Ocean. Photo:

expected to arrive the sea ice north-west of Svalbard during the day. Cloud cover was predicted to be low in this area providing the chance to measure the surface properties of the sea ice with Polar 5 and [...] Polarstern could not move fast in the thick sea ice, this gave us the opportunity to meet Polarstern in relative close distance to Longyearbyen, but already over sea ice. Coordination with Polarstern worked [...] Config Air time Flight time 29. May 2017 Thin low level clouds over sea ice A 2.9 3.0 31. May 2017 PS Meeting: Thin low clouds over sea ice B 3.8 4.5 02. June 2017 PS Meeting and CloudSat overpass A 5.5

week a high pressure system was located exactly over Svalbard and transported warm and moist air north-eastward. In this air mass, low level clouds and sometimes fog were present over a wide area. This [...] A-Train satellite overpass and cloud measurements at Polarstern was planned. The cloud cover over the sea ice was predicted to decrease during the day. When P5/6 arrived at Polarstern, the clouds were very [...] very thin and patchy. Therefore, the Polarstern was left earlier and clouds southwards close to the sea ice edge were investigated by Polar 6. Polar 5 passed Ny Alesund on the way home. Fri, 09 June The general

Svalbard. Subsidence in a high pressure system was supposed to spread the cloud free area towards north over the sea ice, where the position of the Polarstern position was predicted. During both satellite overpasses [...] and P6. The purpose was to investigate cloud properties developing over sea ice, and to follow their transition to the open sea. The cloud situation was such that we had to fly high above the observed [...] Meeting #8: Double A-Train overpass A 5.2 5.3 17 June 2017 Clouds above sea ice and open water A 5.5 5.6 18 June 2017 PS #9: Clouds above sea ice and water A 5.6 5.7 Total campaign flight hours this week: 24