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Scientific Programme Tuesday, 19 June 2018 Opening Ceremony C I POLAR2018 A SCAR & IASC Conference June 15 - 26, 2018 Davos, Switzerland Open Science Conference OSC 19 - 23 June 2018 Scientific Programme Tuesday, 19 June 2018 Plenary Events 08:00 - 09:00 A Davos (Plenary) Opening Ceremony Opening Ceremony SCAR & IASC 8.00 Martin Schneebeli (POLAR2018 Scientific Steering Committee Chair) 8.10 Okalik Eegeesiak (Chair of the Inuit Circumpolar Council) 8.20 IASC President (to be elected during the business meetings) 8.30 Kelly Falkner (COMNAP President) 8.40 Steven Chown (SCAR President) 8.50 end of the event and distribution to parallel session rooms COMNAP + Mini-Symposia 09:00 - 10:30 C Aspen C I COMNAP Open Session I The Critical Science/Science Support Nexus Through a SCAR process, the Antarctic research community scanned the horizon to develop a list of the 80 most critical questions likely to need answered in the mid-term future. Afterwards, through COMNAP, the research support community outlined what would be needed to overcome the practical and technical challenges of supporting the research community to the extent needed to answer those critical questions. Throughout both processes, one message came through loud and clear: to be successful in the Antarctic, the research support community and the research community must work hand-in-hand, often over long periods of time and under a diverse range of circumstances and must be clear in their cross-communication of needs, expectations, risks and opportunities. This session looks at nexus between the research support community and the researchers by way of two current projects which are using unconventional methods of logistics and operations, both being supported away from permanent polar infrastructure. The first example is from an Arctic project already well-advanced in planning; and the second from an Antarctic project in its early stages of implementation. Hear about what it takes to get large, multi-year, multi- national projects off the ground and keep them up and running and contribute to the conversation between researcher & National Antarctic Program so that together we can achieve success. Keywords: International collaboration; logistics; traverse; infrastructure; science support Chair: Rogan-Finnemore, Michelle (New Zealand) The Antarctic Roadmap Challenges (ARC) Project: How We Will Enable the 09:00 - 09:15 Research Presenter: Rogan-Finnemore, Michelle (New Zealand) Multidisciplinary Drifting Observatory for the Study of Arctic Climate 09:15 - 09:30 (MOSAiC) Presenter: Rex, Markus (Germany) Planning Logistics Support for MOSAiC: We Want Our Vessel to Get Stuck 09:30 - 09:45 in Ice! Presenter: Nixdorf, Uwe (Germany) Vulnerability of the Ross Ice Shelf in a Warming World 09:45 - 10:00 Presenter: Hulbe, Christina (New Zealand) Page 1 / 246 POLAR2018 A SCAR & IASC Conference June 15 - 26, 2018 Davos, Switzerland Open Science Conference OSC 19 - 23 June 2018 Scientific Programme Traverses, Town Planning, Space Travel & Ice Shelfs…What Do They Have 10:00 - 10:15 in Common? Presenter: Trotter, Simon (New Zealand) COMNAP C I Panel Discussion 10:15 - 10:30 Session Block 09:00 - 10:30 A Studio AA-1a Astrophysics and Astronomy in the Polar Regions The Polar Regions provide unique viewing locations for exploring the Universe. This session invites contributions from current and proposed astronomy and astrophysics research projects in the Arctic and Antarctic. The session will be a forum to learn about the science potential of these regions, and techniques for c onducting research in extreme environments including ground-based and balloon-borne experiments. We encourage talks from early career scientists and nations who have recently joined SCAR and IASC as associate members, along with presentations from more established researchers to provide opportunities for mentoring and building collaborations to leverage the investment in scientific infrastructure in the Polar Regions. Talks involving polar research in Astronomyand Astrophysics are also encouraged. Chair: Shang, Zhaohui (China) A 76 Day Period G-M Eclipsing Binary Discovered from Dome C, Antarctica 09:00 - 09:15 Presenter: Crouzet, Nicolas (Spain) Pulsations and Planetary Transit Events of Beta Pictoris as Observed by 09:15 - 09:30 ASTEP Presenter: Mékarnia, Djamel (France) Exoplanets in the Antarctic Sky 09:30 - 09:45 Presenter: Zhang, Hui (China) Optical Observations of LIGO Source GW 170817 by the ASTs at Dome A, 09:45 - 10:00 Antarctica Presenter: Gong, Xuefei (China) Measuring Atmospheric Turbulence at Dome A, Antarctica with AST3 10:00 - 10:15 Presenter: Ma, Bin (China) Meteorological Data from KLAWS-2G for Site Testing at Dome A, 10:15 - 10:30 Antarctica Presenter: Hu, Yi (China) Page 2 / 246 POLAR2018 A SCAR & IASC Conference June 15 - 26, 2018 Davos, Switzerland Open Science Conference OSC 19 - 23 June 2018 Scientific Programme Session Block 09:00 - 10:30 A Forum OS-6a Polar Ocean Dynamics Understanding the polar ocean circulation and its interaction with the cryosphere and biogeochemical processes is critical to improve our knowledge of heat, freshwater, energy and carbon budgets, as well as sea level rise and ocean productivity. The Arctic and the Southern Oceans are affected by large scale annular modes of atmospheric variability, have large ice-covered regions, are bordered by ice-sheets and support strong boundary current systems. Dynamically, these flow regimes experience a small Rossby deformation radius, regions of extreme vertical stratification, strong interactions with bathymetry, and eddy variability that influences both mean and transient properties of the large-scale circulation. Despite these similarities, important differences in the behavior of the two regions have been observed, including sea ice trends from recent decades of opposite signs. Differences in ocean stratification, mixed layer processes, bathymetric geometry, and surface forcing have been suggested as possible causes for the distinct natures of the two regions.In this session, we invite contributions on all physical oceanographic aspects of the Arctic or the Southern Ocean (or ideally both), based on observations, numerical models or theory. Contributions that explore how the ocean impacts the wider polar system, including air-sea exchange, sea ice, ice shelf evolution, biogeochemical cycling and other broad features of the high-latitude climate system, are especially welcome. Chair: Thompson, Andrew (United States) Southern Ocean Air-sea Fluxes: An Overview and Contrasts with the 09:00 - 09:15 Arctic Presenter: Josey, Simon (United Kingdom) PIPERS: Ocean Observations during an Anomalous Autumn-winter in the 09:15 - 09:30 Ross Sea Presenter: Stammerjohn, Sharon (United States) Ocean Forcing of Pine Island Glacier Melt Rate on Weekly to Monthly 09:30 - 09:45 Time Scales Presenter: Davis, Peter (United Kingdom) Using Noble Gases to Show Upper Ocean Glacial Meltwater in the 09:45 - 10:00 Amundsen Sea Presenter: Biddle, Louise (Sweden) Convection in the Southern Ocean - What Controls it? 10:00 - 10:15 Presenter: Behrens, Erik (New Zealand) Preconditioning of the Weddell Sea Polynya by the Ocean Mesoscale and 10:15 - 10:30 Overflows Presenter: Dufour, Carolina O. (Canada) Page 3 / 246 POLAR2018 A SCAR & IASC Conference June 15 - 26, 2018 Davos, Switzerland Open Science Conference OSC 19 - 23 June 2018 Scientific Programme Session Block 09:00 - 10:30 A Dischma BE-1a From boots to bytes: ‘omics’ tools for microbial diversity and biogeography This session invites comparative studies using high-throughput ‘omics’ techniques to resolve large-scale microbial diversity and biogeographic patterns across the three poles (Arctic, Antarctic and mountain regions). The session concentrates on the microbial and viral diversity, ideally comparing at least two geographic regions. All freshwater and terrestrial ecosystems are included, such as meltwater ponds, streams, perennially ice-covered lakes and supraglacial ecosystems as well as soils, glacier forefields and other terrestrial and aquatic biotopes. ‘Omics’ techniques are encouraged, but more traditional methods can also be accepted and methodologies can be discussed.The terrestrial habitats of the three poles have strikingly similar physical properties. The harsh conditions permit the survival of a limited selection of (micro) organisms. Yet, their diversity and biogeographic patterns are still unresolved. The aim of this session therefore is to go beyond descriptive and geographically limited studies and to encourage broad, comparative and process-oriented research towards large-scale biogeographic patterns, environment-diversity relationships, and ecological drivers of diversity patterns. This may also include studies on natural and anthropogenic dispersal pathways, ecological niches as well as present and future climatic-driven habitat and diversity change. Chair: Jungblut, Anne D. (United Kingdom) Chair: Kleinteich, Julia Some Like it Hot: Metagenomics of an Isolated Antarctic Geothermal 09:00 - 09:15 Refugium Presenter: Cary, Stephen Craig (New Zealand) Dynamics of Microbial Community Succession in Polar Deglaciated 09:15 - 09:30 Forefields Presenter: de los Rios, Asuncion (Spain) Cyanobacterial Diversity from Pole to Pole: Metagenome of Arctic and 09:30 - 09:45 Antarctic Presenter: Wan Omar, Wan Maznah (Malaysia) Biogeography of Cyanobacteria in Antarctic Mats and Implication for 09:45 - 10:00 Conservation Presenter: Durieu, Benoit (Belgium) Did Antarctic Lichens Originate in, or Arrive to, Antarctica? 10:00 - 10:15 Presenter: Garrido-Benavent,
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