GRAntarctic-NIPR Joint International Symposium

(The 1st GRAntarctic International Symposium and the 9th Symposium on Polar Science)

The GRAntarctic-NIPR Joint International Symposium was held at the National Institute of Polar Research (NIPR) from December 3rd to the 4th, 2018. On the 1st day, the 1st GRAntarctic International Symposium was hosted by“Giant reservoirs of heat/water/material: Global environmental changes driven by the Southern Ocean and the Antarctic Ice Sheet” (GRAntarctic project). On the 2nd day, the special session was co-organized with “The 9th Symposium on Polar Science”.

This symposium was a great success with 132 attendees and 48 presentations. Totally 28 foreign researchers, including 10 invited speakers, attended the symposium mainly from countries that lead Antarctic research, such as the United States, United Kingdom, and Germany. With “Ice-Ocean Interaction” as the main theme this time, we invited foreign researchers advancing polar research at the forefront.

This symposium provided opportunities for active discussions through presentations and questions/answers and productive meetings concerning collaborative research plans with “GRAntarctic” members around Japan. Furthermore, as 32 young researchers attended this international symposium, the discussions on “the Antarctic Environmental Systems Science” significantly contributed to expanding perspectives and research possibilities for young researchers involved in our research projects.This international symposium was a significant event for the “GRAntarctic project” from the perspectives of international research trends, collaborative research in the Antarctic, and interdisciplinary sharing of new findings.

Session1-6Oral Presentation
KeynotePaleoclimate modeling perspective on understanding the Dynamics of Antarctic Ice Sheet Change Implications from experiments with MIROC AOGCM
Ayako Abe-Ouchi (The University of Tokyo / AORI)
KeynoteRoles of warm and cold sea water pumps along the coast of East Antarctica
Shigeru Aoki (Hokkaido University / ILTS)
InvitedImpact of ice-shelf buttressing on Antarctic ice-sheet dynamics
Frank Pattyn (Universite libre de Bruxelles)
InvitedIce sheet evolution in the past and into the future, and the role of interactions with the ocean
Nicholas R. Golledge (Victoria University of Wellington)
Modeling activities for ocean-cryosphere interactions over the Southern Ocean with a Japanese OGCM
Kazuya Kusahara (JAMSTEC)
Bipolar-seesaw climate changes during the last two deglaciations and implications for Antarctic ice sheet extent during the following interglacials
Takashi Obase (The University of Tokyo / AORI)
On the interaction of millennial climate variability, Southern Ocean and Antarctic ice sheet
Sam Sherriff-Tadano (The University of Tokyo / AORI)
Simulations of glacial ocean carbon cycle with a parameterization of brine rejection
Hidetaka Kobayashi (The University of Tokyo / AORI)
Timing of penultimate glacial-interglacial transition from gas measurements of the Dome Fuji ice core, Antarctica
Ikumi Oyabu (NIPR)
InvitedOcean forcing of West Antarctic Ice Sheet retreat during the Late Quaternary: Clues from marine sedimentary records from the Amundsen Sea continental margin
Claus-Dieter Hillenbrand (British Antarctic Survey)
InvitedIce sheet retreat in the Amundsen Sea sector: precursor for a WAIS collapse ?
Karsten Gohl (Alfred Wegener Institute Helmholtz-Centre for Polar and Marine Research)
Sedimentary 10Be signature of ice retreat history in Pine Island Bay, West Antarctica
Yusuke Suganuma (NIPR)
Reconstruction of sea surface temperature through the last 150 kyrs in the Indian sector of the Southern Ocean
Hiroki Matsui (Kochi University)
Antarctic Ice Sheet change before Marine Isotope Stage 3 using a glacial isostatic adjustment model
Takeshige Ishiwa (NIPR)
InvitedExploring the ocean under ice shelves
Martin Truffer (University of Alaska Fairbanks)
Hot water drilling at Langhovde Glacier, East Antarctica
Shin Sugiyama (Hokkaido University / ILTS)
Direct measurements of water properties underneath a floating tongue of Langhovde Glacier, East Antarctica
Masahiro Minowa (Austral University of Chile)
Estimation of ice flow velocities of Shirase Glacier and its surrounding fast ice in Antarctica using ALOS-2/PALSAR-2 data
Kazuki Nakamura (Nihon University)
InvitedExploration of the Ocean Cavities Beneath Antarctica’s Floating Ice Shelves Using Autonomous Underwater Vehicles
Adrian Jenkins (British Antarctic Survey)
InvitedAutosub Long Range AUV Deployments Beneath the Ronne and Filchner Ice Shelves – The Engineering Challenges
Stephen Duncan McPhail (National Oceanography Centre, Southampton)
InvitedPreparing for the new wave of Autonomous Underwater Vehicle exploration in Antarctica
Guy Williams (University of Tasmania)
Design of the Variable and Compact AUV “MONACA” for Antarctic Survey
Hirokazu Yamagata (The University of Tokyo/IIS)
An Elecromagnetic Under Ice Positioning System and An Underwater Drone for Under Ice
Hiroshi Yoshida (JAMSTEC)
InvitedThe Filchner-Ronne Ice Shelf System
Hartmut Heinz Hellmer (Alfred Wegener Institute Helmholtz-Centre for Polar and Marine
InvitedAntarctica’s Great Sub-Ice Basins: A Natural Wonder or a Global Threat ?
Donald D. Blankenship (University of Texas at Austin)
Strong ice-ocean interaction at Shirase Glacier Tongue, East Antarctica
Daisuke Hirano (Hokkaido University / ILTS)
Pathway of Circumpolar Deep Water into Pine Island and Thwaites ice shelf cavities and to their grounding lines
Yoshihiro Nakayama (Hokkaido University / ILTS)
Two recirculations in the Australian-Antarctic Basin revealed by improved ice-free monthly absolute dynamic ocean topography using CryoSat-2 radar altimeter
Kohei Mizobata (Tokyo University of Marine Science and Technology)
Subsurface cross-slope exchange in the Australian-Antarctic Basin
Kaihe Yamazaki (Hokkaido University / ILTS)
Wintering habitat of Weddell seals along the continental shelf off Enderby Land, East Antarctica
Nobuo Kokubun (NIPR)
Session No.Poster Presentation
Sp1Reconstruction of the last glacial-interglacial cycle in the Kerguelen Plateau’s PFZ and SAZ, Southern Ocean
Matthieu Civel (Kochi University)
Sp2Millennial-scale sea ice expansion in the glacial Southern Ocean driven by Antarctic warming
Minoru Ikehara (Kochi University)
Sp3Tidally controlled vertical ice motion generate seismicity near a terminus of a floating tongue, East Antarctica
Masahiro Minowa (Austral University of Chile)
Sp4Seasonality in sulfur isotopic compositions of atmospheric sulfate in East Antarctica
Sakiko Ishino (Tokyo Institute of Technology)
Sp5The effect of basal melting of the Shirase Glacier on the CO2 system in Lützow-Holm Bay, East Antarctica
Masaaki Kiuchi (Hokkaido University)
Sp6Treatments of ice-ocean interaction in ice sheet models and implications for Antarctic ice sheet retreat in the past and future
Takashi Obase (The University of Tokyo / AORI)
Sp7Provenances of ice-rafted detritus in sedimentary core from the Conrad Rise
Hiroshi Sato (Senshu University)
Sp8Response of the Antarctic ice sheet to increased sub-ice-shelf melt rates
Ralf Greve (Hokkaido University / ILTS)
Sp9Role of clouds on the Southern Ocean sea surface temperature bias and its impact on climate simulations
Sam Sherriff-Tadano (The University of Tokyo / AORI)
Sp10Present-day crustal motion and gravity change around the Lützow-Holm Bay region based on GIA modeling
Jun’ichi Okuno (NIPR)
Sp11Subshelf environment of Langhovde Glacier, Antarctica
Shiori Yamane (Hokkaido University / ILTS)
Sp12Characteristics of baseline isotope ratios in food web and trophic structure in Indian sector of the Southern Ocean
Ayu Yamamoto (Tokyo University of Marine Science and Technology)
Sp13AI based automatic microfossil counting system and its application for the Pleistocene Cycladophora davisiana curve in the Southern Ocean
Takuya Itaki (Geological Survey of Japan / AIST)
Sp14How mineral dust aerosol during LGM affects temperature surrounding of the Antarctica
Rumi Ohgaito (JAMSTEC)
Sp15Observing seasonality and driver of carbon sequestration in seasonal ice zone
Ryosuke Makabe (NIPR)
Sp16Reconstructing ice sheet fluctuation in Skarvesnes, southern part of Soya Coast, East Antarctica
Moto Kawamata (SOKENDAI / The Graduate University for Advanced Studies)
Sp17Effect of melting sea ice on phytoplankton abundance and productivity
Shintaro Takao (NIPR)
Sp18Ocean-driven thinning of Totten and Denman Glaciers, the two primary outlets of the Aurora Subglacial Basin in East Antarctica
Jamin S. Greenbaum (University of Texas at Austin)