Images Polarstern Expedition ARK-XXVI
The following pictures may be used for publications about the 26th Arctic expedition of the German RV Polarstern. Please quote the photographer as indicated in the copyright remarks of the IPTC-metadata of the images.
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Hallmark of the sea ice group of the AWI, a heated tent in which shelters the electronics for an underwater vehicle (ROV) named "Alfred" is is. Used "Alfred" in order to measure the light conditions under the ice. Photo: Mario Hoppmann, Alfred Wegener Institute
The research Vessel Polarstern in the central Arctic. In the foreground an ROV team works. On display are also biologists, geochemists and a fog bow in the background. Photo: Mario Hoppmann, Alfred-Wegener-Institute
This aerial photograph shows the research icebreaker Polarstern at the North Pole. Photo: Mario Hoppmann, Alfred Wegener Institute
Fahrtroute der Polarstern auf der Expedition ARK XXVI/1 mit Meereisbedeckung vom 29.06.2011
Route of the Polarstern expedition to the ARK XXVI/1 with sea ice from 06/29/2011
Route of the Polarstern expedition to the ARK XXVI/2 with sea ice from 07/23/2011, Map: Thomas Krumpen; Wolfgang Cohrs und Gert König-Langlo, Alfred Wegener Institute
Route of the Polarstern expedition to the ARK-XXVI/3 with sea ice from 09/06/2011, Map: Thomas Krumpen; Wolfgang Cohrs und Gert König-Langlo, Alfred Wegener Institute
Scientists Marcel Nicolaus and Priska Hunkeler put the ROV (Remotely Operated Vehicle) "Alfred" into the water through a hole in the ice. In the background one can see the tent where the pilots of the ROV are going to work and a reference sensor. Photo: Stefan Hendricks, Alfred-Wegener-Institute
Two ROV-pilots during a mission. Scientist Christian Katlein (front) is steering the ROV, while scientist Priska Hunkeler (back) is checking the measurements and writing the missions journal. Photo: Marcel Nicolaus, Alfred Wegener Institute
ROV station on the arctic sea ice. The Remotely Operated Vehicle (ROV), called "Alfred", was led into the water through a meltpond and is now measuring the light radiation underneath the ice. Two scientists are holding its cable, while the two pilots of the ROV are working in the orange tent. Photo: Marcel Nicolaus, Alfred Wegener Institute
The Rov (Remotely Operated Vehicle) Alfred right befort its light measurment mission. It is equippes with two radiation sensors, typ Rames and connected to a cable which is 300 meters long. In the background one can see scientist Stefan Hendricks with a rifle. He is looking for polar bears. The photo was taken in the 14 August 2011, Photo: Marcel Nicolaus, Alfred Wegener Institute
A ROV (Remotely operated vehicle) is coming back from its mission underneath the arctic sea ice, while a scientist is pulling its tether. The sea ise around is mostly one year old and strongly covered with meltponds. Photo: Marcel Nicolaus, Alfred Wegener Institute
Sea Ice thickness measured by ice drills. Photo: Stefan Hendricks, Alfred-Wegener-Institute
The electromagnetic sensor EM-Bird is drawen for the ice thickness measurements in a canoe on the sea ice. Photo: Stefan Hendricks, Alfred-Wegener-Institute
Scientists of the Alfred Wegener Institute are installing a ice buoy, which atuomatically measures salinity and temperature underneath its ice float. Photo: oto: Oliver Zenk, Alfred Wegener Institute
Scientists of the Alfred Wegener Institute are installing a ice buoy, which atuomatically measures salinity and temperature underneath its ice float. Photo: Ian Waddington
Scientisis and technicians pull a mooring on board. The moored device is a "Moored profiler" that measures currents velocity, temperature, conductivity and depth, Photo: Mario Hoppmann, Alfred Wegener Institute
Mooring material prepared for deployment in Fram Strait, Photo: Agnieszka Beszczyknska-Möller, Alfred Wegener Institute
Recovery of mooring in Fram Strait, Photo: Agnieszka Beszczyknska-Möller, Alfred Wegener Institute
Preparation of mooring material used. Photo: Agnieszka Beszczyknska-Möller, Alfred Wegener Institute
Illustration of the mooring in the Fram Strait. Graphic: German marine Research Consortium (KDM)
Computer-generated view of the payload of the AUV as it is used during ARK XXVI/2. On display are: the various sensors, CO2, O2, turbidity, fluorescence, PAR. (Not to view: CTD); the payload control computer (control of the payload and storing the measured data); Water sampler (removal of max. 22 á 220 ml water samples to determine, for example, content of dissolved carbon or the content of nutrient salt). Graphic: Thorben Wulff, Alfred Wegener Institute
The AUV in Polarstern in the Geo-wet-lab while preparing for a dive. All sections of the vehicle are open. Photo: Martin Sperling, Alfred Wegener Institute
The AUV will be recovered after a successful mission, under the Arctic ice (26/07/11). Photo: Nicole Hildebrand, Alfred Wegener Institute
load capacity (here: water sample memory) of the AUV for ARK XXVI/2. Photo: Thorben Wulff, Alfred Wegener Institute
On the research vessel Polarstern mooring is discarded. Photo: Eberhard Fahrbach, Alfred Wegener Institute
Graphical representation of the AUV of the AWI deep-sea biologists, graphic: Thorben Wulff, Alfred Wegener Institute
Graphical representation of the AUV of the AWI deep-sea biologists, graphic: Thorben Wulff, Alfred Wegener Institute
CTD Rosette for water sampling, Photo: Peter Lemke, Alfred Wegener Institute
For the sampling of virtually undisturbed deep-sea sediments we usually use a multiple corer (MUC). This device, lowered to the seafloor by the ships wire, is able to sample up to twelve sediment cores of approximately 30 cm in length. At great water depths (> 4,000 m), a single MUC deployment may take several hours. Even if the sampling sites are located in close vicinity, sampling with a conventional MUC thus generally needs a considerable amount of time. Photo. Alfred Wegener Institut
Scientists are evakuating samples from a multicorer. Photo: Gauthier Chapelle, Alfred Wegener Institute
Deployment of the multicorer, Photo: M. Schueller, Alfred Wegener Institute
Recovery of a fish trap Landers, Photo: Sascha Lehmenhecker, Alfred Wegener Institute
Spreading from one corer aboard the Polarstern. Photo: Ingo Schewe, Alfred Wegener Institute
A sediment traps is lowered into the water, Photo: Ingo Schewe, Alfred Wegener Institute
