place in the Arctic and Antarctic. Depending on the season, the ice covers greater or lesser parts of the ocean. In the Northern Hemisphere, the ocean gradually freezes over in the course of the long Polar [...] near the end of winter. At this point, the Arctic Ocean is completely covered in ice from between the coasts of Canada, Alaska and Siberia to the eastern coast of Greenland. When the sun returns, the ice [...] the formation and melting of sea ice affect the atmosphere and the ocean, and with them, the climate, in a variety of ways. The ice reflects the majority of incoming sunlight back into space. In contrast

ng signal. Moreover, the 5–10,000-yr intervals between the events are inconsistent with Milankovitch orbital periodicities, raising the question of what the ultimate cause of the postulated cooling may [...] not only in the region of the North Atlantic Ocean but also in remote areas such as the Pacific Ocean and the Antarctic. See: Heinrich, H.: Origin and consequences of cyclic ice rafting in the northeast [...] planktonic foraminifera to the sediments, and short-lived, massive discharges of icebergs originating in eastern Canada. The path of the icebergs, clearly marked by the presence of ice-rafted detrital carbonate

Christian Stepanek The Pliocene is seen in many ways as a possible analogue of future warm climate states. The question of the characteristics and of the dynamics of the climate of the Pliocene thus becomes [...] climate states of the Pliocene, sensitivity studies are also taken into account. These allow a better understanding of the climate of the Pliocene in the context of the climate forcings of the future. This [...] regions in the form of prepared, printable graphics and maps as well as their raw data, the preparation of the basics and knowledge on the topic of sea ice as well as the current expert assessment of the sea

and starboard of the ship. Depeding on the diving depth of the system and the speed of the ship, the winch can pay out up to 2500 m of cable with 60 m/min spooling speed. The winch is of the type "Mermac [...] stitut) The profile measurement distance or horizontal resolution of the topAWI system mainly depends on the measurement speed of the sensors and the shape of the undulation profile. Since the measuring [...] use of standard sensors and is only limited by the system properties of the "Triaxus" sensor carrier itself. The sensors can be mounted in free areas inside of the sensor carrier, as well as onto the extra

iceberg hit the underwater cable so that the communication to the underwater part of the observatory started to become critical. With the help of the AWIPEV station personal, the REMOS part of the underwater [...] overhaul of the underwater part of the installation, including the replacement of the concrete fundament. The April dive-expedition 2018 to Svalbard was therefore dedicated almost exclusively to the renewal [...] hammered into the sediment. Then, the divers filled the steel frame with additional 72 concrete plates each of it with a weight if 18,4 kg so that the desired final weight of the entire construction of 1.8 tons

climate change and climate protection. Against the background of possible tipping elements in the next world climate report of the IPCC, the work of the PermaRisk project was also reported here: www [...] d Prediction for the Usability of IceRoads" in Fairbanks (USA). The aim of the workshop was to establish contacts with potential future users, to inform about the current state of the possibilities and [...] March The second workshop of the PermaRisk project organized by Moritz Langer and hosted by the Geography Department of the Humboldt Universität zu Berlin. Main objectives of the workshop were the impacts

vocalisations, speeding up the analysis of passive acoustic data in order to address ecological questions. I am interested in understanding the effects of the physical environment and the ecosystem productivity [...] to investigate the influence of the three soundscape components (biophony, geophony, and anthrophony) on the acoustic environment. Further I will study the spatio-temporal patterns of the marine mammal [...] acoustic monitoring of ambient noise in the Atlantic sector of the Southern Ocean Svenja Zakrzewski (2010), Bachelor Hochschule Bremerhaven The PALAOA-S experiment: vocal behaviour of Antarctic pinnipeds

interest in the algae's potential for innovations in the field of the “blue bioeconomy”. The AWI research group led by Dr. Fernández-Méndez is investigating the carbon and nutrient cycles of these mass [...] to the ocean for solutions to solve the climate crisis as quickly and on this scale. Of all the Ocean Carbon Dioxide Removal (OceanCDR) strategies, we will particularly investigate the potential of the [...] de/en/ ), we will quantify the potential of Sargassum for CDR in the ocean and investigate the co-benefits of this species, taking into account societal perceptions. Report on the Sea4soCiety-Sargassum-Survey

g. in the opal skeleton of diatoms). The special thing about this is that the geochemical fingerprint of both substances differs depending on the environmental conditions that prevailed when the diatoms [...] example, the air temperature that prevailed at the time of formation," says AWI climate researcher Dr Hanno Meyer. He heads the ISOLAB Stable Isotope Facility at the AWI Potsdam, where some of the world's most [...] Temperature data of the last 200,000 years The EPICA DML ice core had a length of 2.892 metres. In order to find out what temperature data is stored in the various ice layers of the core, the scientists took

Development (ESD) of the Federal Ministry of Education and Research and the German UNESCO Commission. The klimafit core team includes: at AWI: Dr. Renate Treffeisen, Dr. Klaus Grosfeld, at the WWF Germany: [...] Hartmut Heinrich Award The unexpected discovery of Hartmut Heinrich has an enormous influence on the work of the section Paleoclimate Dynamics . Deep-sea sediment cores recovered from the Northeast Atlantic [...] insolation forces meltwater discharge from the ice sheets into the polar seas which subsequently enhances formation of sea ice during the winter. In the second case, growth of continental ice enhances iceberg