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716 Berichte zur Polar- und Meeresforschung 2018 Reports on Polar and Marine Research Polar Systems under Pressure 27th International Polar Conference Rostock, 25 - 29 March 2018 German Society for Polar Research Edited by H. Kassens, D. Damaske, B. Diekmann, D. Fütterer, G. Heinemann, U. Karsten, E.M. Pfeiffer, J. Regnery, M. Scheinert, J. Thiede, R. Tiedemann & D. Wagner Die Berichte zur Polar- und Meeresforschung werden The Reports on Polar and Marine Research are issued vom Alfred-Wegener-Institut, Helmholtz-Zentrum für by the Alfred Wegener Institute, Helmholtz Centre for Polar- und Meeresforschung (AWI) in Bremerhaven, Polar and Marine Research (AWI) in Bremerhaven, Deutschland, in Fortsetzung der vormaligen Berichte Germany, succeeding the former Reports on Polar zur Polarforschung herausgegeben. Sie erscheinen in Research. They are published at irregular intervals. unregelmäßiger Abfolge. Die Berichte zur Polar- und Meeresforschung ent- The Reports on Polar and Marine Research contain halten Darstellungen und Ergebnisse der vom AWI presentations and results of research activities in selbst oder mit seiner Unterstützung durchgeführten polar regions and in the seas either carried out by the Forschungsarbeiten in den Polargebieten und in den AWI or with its support. Meeren. Die Publikationen umfassen Expeditionsberichte der Publications comprise expedition reports of the ships, vom AWI betriebenen Schiffe, Flugzeuge und Statio- aircrafts, and stations operated by the AWI, research nen, Forschungsergebnisse (inkl. Dissertationen) des results (incl. dissertations) of the Institute and the Archiv Instituts und des Archivs für deutsche Polarforschung, für deutsche Polarforschung, as well as abstracts and sowie Abstracts und Proceedings von nationalen und proceedings of national and international conferences internationalen Tagungen und Workshops des AWI. and workshops of the AWI. Die Beiträge geben nicht notwendigerweise die Auf- The papers contained in the Reports do not necessarily fassung des AWI wider. reflect the opinion of the AWI. Herausgeber Editor Dr. Horst Bornemann Dr. Horst Bornemann Redaktionelle Bearbeitung und Layout Editorial editing and layout Birgit Reimann Birgit Reimann Alfred-Wegener-Institut Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung Helmholtz-Zentrum für Polar- und Meeresforschung Am Handeshafen 12 Am Handeshafen 12 27570 Bremerhaven 27570 Bremerhaven Germany Germany www.awi.de www.awi.de www.reports.awi.de www.reports.awi.de Der Erstautor bzw. herausgebende Autor eines Ban- The first or editing author of an issue of Reports on des der Berichte zur Polar- und Meeresforschung Polar and Marine Research ensures that he possesses versichert, dass er über alle Rechte am Werk verfügt all rights of the opus, and transfers all rights to the AWI, und überträgt sämtliche Rechte auch im Namen sei- inlcuding those associated with the co-authors. The ner Koautoren an das AWI. Ein einfaches Nutzungs- non-exclusive right of use (einfaches Nutzungsrecht) recht verbleibt, wenn nicht anders angegeben, beim remains with the author unless stated otherwise. Autor (bei den Autoren). Das AWI beansprucht die The AWI reserves the right to publish the submitted Publikation der eingereichten Manuskripte über sein articles in its repository ePIC (electronic Publication Repositorium ePIC (electronic Publication Information Information Center, see inside page of verso) with the Center, s. Innenseite am Rückdeckel) mit optionalem option to "print-on-demand". print-on-demand. Titel: Gletscher auf dem Rückzug im Kongsfjorden, Spitzbergen (Foto: Ulf Karsten) Cover: Glacier retreat in Kongsfjorden, Svalbard (Photo: Ulf Karsten) German Society for Polar Research 27th International Polar Conference „Polar Systems under Pressure“ University of Rostock March 25 - 29, 2018 Editorial Board Kassens H, Damaske D, Diekmann B, Fütterer D, Heinemann G, Karsten U, Pfeiffer EM, Regnery J, Scheinert M, Thiede J, Tiedemann R & D Wagner Sponsors Please cite or link this publication using the identifiers hdl:10013/epic.25dc4e10-45c8-4d80-875b-eca2daf852e0 and https://doi.org/10.2312/BzPM_0716_2018 ISSN 1866-3192 27th International Polar Conference, 25 – 29 March 2018, Rostock, Germany Rostock, March 2018 Welcome to the 27th International Polar Conference in Rostock The North and South Pole regions have fascinated people to this day. Not only fauna and flora are attracting us but also the special physical and biogeochemical processes in these cold areas as, for instance, the strong reflection of solar radiation at ice and snow surfaces, the huge temperature contrast with respect to the tropics or the global atmospheric and oceanic circulation that is controlled by the polar regions. These processes are subject to fundamental changes which are even more intensified by anthropogenic influences. The Arctic, for example, is warming twice as fast as other regions on Earth. The serious changes of the polar regions and glaciers of the high mountains (the “third pole”) are closely connected to climate change. Thus, it is of utmost importance to strengthen an active research of the impact of climate change as well as to intensify public outreach in order to explain the consequences to the public. Every day scientists are recording data to capture the dynamics of these changes, to better understand the involved processes, to reconstruct them and enable a better prediction using appropriate models. Under the theme “Polar Systems under Pressure” the German Society of Polar Research (DGP) cordially welcomes you to the 27th International Polar Conference in Rostock, 25 to 29 March 2018. Experts from universities and research centres will discuss the state-of-the-art of polar sciences with polar teachers and interested laymen. The volume at hand comprises all abstracts which have been submitted to the 27th International Polar Conference. These contributions cover a huge variety of aspects, from the complex impact of climate change on the polar regions and high mountains, and their grounded and floating ice, to biodiversity, the change of food webs and social responsibility. Questions with regard to geological, geophysical and biological processes will be discussed, and the historic dimension of polar research will be debated. Teachers will report on the experiences made in polar regions and how these get incorporated into primary and secondary education. The colloquium of the priority programme of the German Research Foundation on “Antarctic research with comparative investigations in Arctic glaciated areas” (SPP 1158) will provide major contributions to answering open questions. The 27th International Polar Conference will be realized in close cooperation with the University of Rostock and the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research. We would like to cordially thank both institutions for their generous support. Now enjoy reading the abstracts of the oral and poster presentations. We are looking forward to a fascinating programme with lively discussions and invite you all to join in when scientists of all disciplines and generations present their most recent research results on the cold regions of our planet. We hope for an inspiring exchange with everybody interested in polar research on “Polar Systems under Pressure”. Eva-Maria Pfeiffer and all colleagues of the Extended Steering Committee of the DGP Prof. Eva-Maria Pfeiffer, Vorsitzende – Deutsche Gesellschaft für Polarforschung e.V., c/o Universität Hamburg, Institut für Bodenkunde, Allende-Platz 220146 Hamburg, www.polarforschung.de I 27th International Polar Conference, 25 – 29 March 2018, Rostock, Germany 27th International Polar Conference, University of Rostock, 2018 Sonntag Montag Dienstag Mittwoch Donnerstag Freitag 25.03.18 26.03.18 27.03.18 28.03.18 29.03.18 30.03.18 8:00 - 8:15 Registrierung 8:30 - 8:45 Eröffnung & Ehrungen Heidbrink Chen et al. Huhn et al. 8:45 - 9:00 Schareck Lobova Klages et al. 9:00 - 9:15 Karsten Mishina Losa et al. Weber et al. 9:15 - 9:30 Pfeiffer Kallfelz Havermans et al. Berg et al. 9:30 - 9:45 Hubberten Kaup et al. Dömel et al. Grigoreva et al. 9:45 - 10:00 Thiede et al. Lehmann Friedl et al. Sukhanova et al. 10:00 - 10:15 Gernandt Abakumov Lagostina et al. Dietrich et al. 10:15 -10:45 Kaffeepause 10:45 - 11:00 Fritzsche Prater et al. Kuhn et al. Bomfleur 11:00 - 11:15 Opel & Opel de Klerk et al. Jacobs et al. 11:15 - 11:30 Lüdecke Eckhard et al. Zundel et al. Jokat et al. Sessions 11:30 - 11:45 Tammiksaar Hellmer et al. Menneken et al. Pappa et al. 11:45 - 12:00 Schennerlein Richter M. et al. Gohl et al. Koglin & Piepjohn History of Polar Research 12:00 - 12:15 Povazhnyi et al. Arndt et al. Schaller et al. Schannwell et al. 12:15 - 12:30 Jerosch et al. Kazlova & Spreen Busch et al. Scheinert et al. Polar Biology 12:30 - 13:30 Mittagspause Polar Social Sciences Cool classes II 13:30 - 13:45 Trudnowska et al. Preusser et al. Fürst et al. Dietrich 13:45 - 14:00 Verleyen et al. Triana et al. Mayer et al. Permafrost and Periglacial Habitats 14:00 - 14:15 Beszteri et al. Bock et al. Kohnemann et al. Korth et al. Exkursionen 14:15 - 14:30 Thebault Kuepper et al. Zielinski et al. Atmosphere and Ocean 14:30 - 14:45 Thatje & Marsh Becker et al. Markuszewski et al. 14:45 - 15:00 Mustafa et al. Meier et al. Melles et al. DGP-Mitgliederversammlung DFG SPP 1158 Antarctic Research 15:00 - 15:15 Tytgat et al. Toohey & Sigl Taldenkova et al. 15:15 - 15:30 Determeyer-W. & Ott Ronge et al. Diekmann et al. Climate History at the Poles 15:30 - 16:00 Kaffeepause Geodynamic Processes 16:00 - 16:15 APECS Moderierte Kurzvorstellung der Winkelmann et al. Moderierte Kurzvorstellung der DGP-Mitgliederversammlung 16:15 - 16:30 ITMZ, 15:00-18:00 Mass balance & Dynamics Poster Poster 16:30 - 16:45 Zentek et al. of Glacier Systems DGP-Vorstand 16:45 - 17:00 Carlsen et al. ITMZ, 15:00-17:00 17:00 - 17:15 Muchow & Kaleschke 17:15 - 17:30 Poster Pätzold et al. Poster IT- und Medienzentrum (ITMZ) Atrium ITMZ Atrium ITMZ 17:30 - 17:45 Spreen et al.