Multidisciplinary and Interdisciplinary (M)
Session Sub-category Intersection(IS)
Session ID M-IS15
Title Global Antarctic Science: connecting the chain of changing huge ice sheets and global environments
Short Title Global Antarctic Science
Main Convener Name Takeshige Ishiwa
Affiliation National Institute of Polar Research
Co-Convener 1 Name Kazuya Kusahara
Affiliation Japan Agency for Marine-Earth Science and Technology
Co-Convener 2 Name Masahiro Minowa
Affiliation Institute of Low Temperature Science, Hokkaido University
Co-Convener 3 Name Mutusmi Iizuka
Affiliation The National Institute of Advanced Industrial Science and Technology
Session Language 
J
Scope 
Due to global warming, the Antarctic Ice Sheet (AIS) may be beyond a critical threshold, causing the global sea level rise at a faster rate than previously thought. The changes in AIS could trigger a cascade of global tipping points as ocean circulations. The timescale of these changes is various and has the different characteristics of the response. The complex interactions among the different spatiotemporal phenomena prevent improvement of future predictions. This session will promote interdisciplinary research related to the Southern Ocean and AIS, focusing on the changes in AIS, Southern Ocean circulations and ecosystems from the past to present, which is essential for accurately understanding global environmental changes. Also, the session will comprehensively discuss the latest observational and model simulation results and proposals for new research observations. This session is assigned as a Japanese session, but presentations in English are also welcome.
Presentation Format Oral and Poster presentation
Invited Authors Kaihe Yamazaki (University of Tasmania)
Keiko Takehara (Institute of Low Temperature Science, Hokkaido University)
Time Presentation No Title Presenter
Oral Presentation May 27 AM1
9:00 - 9:15 MIS15-01 Emerging outflow of not-so-dense shelf water from an East Antarctic polynya Kaihe Yamazaki
9:15 - 9:30 MIS15-02 Processes of Dense Shelf Water variability and Its Mixing with offshore warm water in the Cape Darnley Polynya toward the formation of Antarctic Bottom Water Masashi Machida
9:30 - 9:45 MIS15-03 Argo floats unveil the Southern Ocean warming Hatsumi Nishikawa
9:45 - 10:00 MIS15-04 Observatinal evidences of poleward heat transport in the Australian-Antarctic Basin Kohei Mizobata
10:00 - 10:15 MIS15-05 Source waters of Antarctic Bottom Water observed in the east Weddell-Enderby Basin (55°E) Katsuro Katsumata
10:15 - 10:30 MIS15-06 Role of anthropogenic forcing in Antarctic sea ice variability simulated in climate models Yushi Morioka
Oral Presentation May 27 AM2
10:45 - 11:00 MIS15-07 Direct observations of ocean heat transport toward the Totten Ice Shelf in East Antarctica Yoshihiko Ohashi
11:00 - 11:15 MIS15-08 Interannual variation of the Lützow-Holm Bay Land-fast Ice Extent Takuji Waseda
11:15 - 11:30 MIS15-09 A primary driver of the recent summer Antarctic sea-ice minima: Ice-ocean albedo feedback Sohey Nihashi
11:30 - 11:45 MIS15-10 Directly observed basal sliding of Langhovde Glacier in East Antarctica during speed-up events caused by surface runoff Ken Kondo
11:45 - 12:00 MIS15-11 Model reproducibility of the warming event at the Dome Fuji station, inland of East Antarctica, in JARE44 Kyohei Yamada
12:00 - 12:15 MIS15-12 An 11-Year Common Periodic Mass Changes in Dronning Maud Land and Amundsen Sea Embayment Driven by Solar Cycle Tianyan Shi
Oral Presentation May 27 PM1
13:45 - 14:00 MIS15-13 Response of Cape Darnley Bottom Water formation to sea ice and ice sheet variations during MIS 11 Keiko Takehara
14:00 - 14:15 MIS15-14 The southward shift of the Antarctic Polar Front and the westerlies during the last interglacial (MIS 5e) and their impact on the climate system Minoru Ikehara
14:15 - 14:30 MIS15-15 Planktic foraminiferal assemblages track fronts' migrations in the Indian sector of the Southern Ocean over the past 1.1 million years Hiroki Matsui
14:30 - 14:45 MIS15-16 Evaluation and establishment of CDW proxy based on Be isotope distribution of surface marine sediments from East Antarctica Yuri Yamazaki
14:45 - 15:00 MIS15-17 Distribution of neodymium isotopic compositions in seawater off Cape Darnley and characteristics of Antarctic bottom waters by formation area Yukiko Kozaka
15:00 - 15:15 MIS15-18 Development of the Under Ice AUV “MONACA” - Autonomous Operations in Antarctica at JARE 64th and 66th - Toshihiro Maki
Presentation No Title Presenter
Poster Presentation May 27 PM3
MIS15-P01 On the meridional distribution of oxygen isotope ratio across the Central Indian and Southern Oceans Shigeru Aoki
MIS15-P02 Antarctic ice sheet-ocean interactions in the era of global warming: FY2024 activities Daisuke Hirano
MIS15-P03 The Climatology of the Cosmonaut Polynya and Its Formation Mechanism Inferred from a Mixed Layer Model Kay I. Ohshima
MIS15-P04 Seasonal variation of landfast ice porosity and its implications for ice thermodynamic and mechanical properties in Prydz Bay, East Antarctica Na Li
MIS15-P05 On the melting land-fast ice near the Showa Station in January 2025 Tsubasa Kodaira
MIS15-P06 Estimation of horizontal diffusion coefficient in the Indian Ocean sector of the Southern Ocean using HYCOM data Yuumi Hirayama
MIS15-P07 Oceanic river-like flow of dense shelf water off the Cape Darnley Polynya revealed by a realistic model Vigan Mensah
MIS15-P08 Response of the Antarctic coastal ocean–cryosphere system to ±6°C temperature forcing Kazuya Kusahara
MIS15-P09 High-resolution basal melting estimation beneath the floating tongue of Shirase Glacier East Antarctica Masahiro Minowa
MIS15-P10 Challenges in modeling daily-scale variability of stable isotopes in water vapor over the Southern Ocean Kanon Kino
MIS15-P11 Comparison of Ocean Carbon Cycle During Different Interglacial Periods Hidetaka Kobayashi
MIS15-P12 High-resolution paleoenvironmental reconstruction since the Last Interglacial using lake sediments from the Larsemann Hills, East Antarctica Kotoha Kosugi
MIS15-P13 Evaluating object detection for counting fossil diatoms: the effects of fossil preservation and morphological variation on detection accuracy Saki Ishino
MIS15-P14 A diatom record from the Weddell Sea (ODP Site 689) during the early and middle Miocene Yuji Kato
MIS15-P15 Holocene readvance of the Antarctic Ice Sheet: Evidence from lake sediments in Langhovde, Lützow-Holm Bay, East Antarctica Takeshige Ishiwa