セッション概要
| 大気水圏科学(A) | |||
|---|---|---|---|
| セッション小記号 | 雪氷学・寒冷環境(CC) | ||
| セッションID | A-CC44 | ||
| タイトル | 和文 | Recent advances in understanding of subglacial environments and processes | |
| 英文 | Recent advances in understanding of subglacial environments and processes | ||
| タイトル短縮名 | 和文 | Subglacial environments and processes | |
| 英文 | Subglacial environments and processes | ||
| 代表コンビーナ | 氏名 | 和文 | Atsuhiro Muto |
| 英文 | Atsuhiro Muto | ||
| 所属 | 和文 | Temple University | |
| 英文 | Temple University | ||
| 共同コンビーナ 1 | 氏名 | 和文 | Lucas Zoet |
| 英文 | Lucas Zoet | ||
| 所属 | 和文 | University of Wisconsin Madison | |
| 英文 | University of Wisconsin Madison | ||
| 共同コンビーナ 2 | 氏名 | 和文 | Emma MacKie |
| 英文 | Emma MacKie | ||
| 所属 | 和文 | University of Florida | |
| 英文 | University of Florida | ||
| 発表言語 | E | ||
| スコープ | 和文 |
Dynamics of glaciers and ice sheets are dictated by processes occurring at the ice-bed interface, which are in turn determined by the ice-basal topography and character, and exchange of water and heat with the crust beneath. Also, biogeochemistry in water, sediments and rocks beneath ice sheets provide key clues of past climate and ice-sheet changes. Such subglacial environments are, however, difficult to observe or sample due to thick ice cover. We invite submissions that present recent advances in understanding of subglacial environments and processes made with geophysical observations, direct sampling and instrumentation, laboratory experiments or modeling. We particularly welcome studies exploring innovative methods and/or multidisciplinary approaches. |
|
| 英文 |
Dynamics of glaciers and ice sheets are dictated by processes occurring at the ice-bed interface, which are in turn determined by the ice-basal topography and character, and exchange of water and heat with the crust beneath. Also, biogeochemistry in water, sediments and rocks beneath ice sheets provide key clues of past climate and ice-sheet changes. Such subglacial environments are, however, difficult to observe or sample due to thick ice cover. We invite submissions that present recent advances in understanding of subglacial environments and processes made with geophysical observations, direct sampling and instrumentation, laboratory experiments or modeling. We particularly welcome studies exploring innovative methods and/or multidisciplinary approaches. |
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| 発表方法 | 口頭および(または)ポスターセッション | ||
| 招待講演 |
Ken Kondo (Nagoya University) Alan Aitken (University of Western Australia) |
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| 時間 | 講演番号 | タイトル | 発表者 |
|---|---|---|---|
| 口頭発表 5月29日 AM1 | |||
| 9:00 - 9:15 | ACC44-01 | Direct observation of basal motion beneath Langhovde Glacier in East Antarctica, using a ploughmeter equipped with an accelerometer | 近藤 研 |
| 9:15 - 9:30 | ACC44-02 | Fabric-controlled weakening of ice at large shear strain | Jacob Fowler |
| 9:30 - 9:45 | ACC44-03 | Recovered Ice Thickness and Basal Reflectivity from the Mid 1970s Airborne Radar Echo Sounding Observations of the Ross Ice Shelf | Angelo Tarzona |
| 9:45 - 10:00 | ACC44-04 | Potential impact of subglacial water-to-rock reaction on the carbon cycle during snowball Earth events | 門屋 辰太郎 |
| 10:00 - 10:15 | ACC44-05 | A Decade of Subglacial Methane Observations: Global Trends and Insights into Formation and Turnover pathways | Jesper Riis Christiansen |
| 10:15 - 10:30 | ACC44-06 | New frontiers in modelling subglacial sediment systems and their value for understanding cryosphere processes and histories. | Alan RA Aitken |
| 口頭発表 5月29日 AM2 | |||
| 10:45 - 11:15 | ACC44-07 | Stability of marine ice sheets: results of geophysical studies at Thwaites Glacier, Antarctica | Sridhar Anandakrishnan |
| 11:15 - 11:30 | ACC44-08 | Evidence for debris entrainment and heterogeneous sliding during Greenland Ice Sheet regrowth | Nicholas Holschuh |
| 11:30 - 11:45 | ACC44-09 | Passive seismic imaging reveals a drained subglacial lake basin in West Greenland | Nicolas Paris |
| 11:45 - 12:00 | ACC44-10 | Laboratory Constraints on Subglacial Effective Stress From Normal-Incidence Active-Source Seismics | Dougal Hansen |
| 12:00 - 12:15 | ACC44-11 | The effects of meso-scale variability of the bed topography on the ice-sheet dynamics | Olga V Sergienko |
| 講演番号 | タイトル | 発表者 |
|---|---|---|
| ポスター発表 5月29日 PM3 | ||
| ACC44-P01 | Waveform Choice in Ice Penetrating Radar | Dustin M Schroeder |
| ACC44-P02 | Rift-Related Sedimentary Basin and Deeper-Seated Mafic Intrusions Modeled Beneath Thwaites Glacier, West Antarctica: Influence on Glacier Dynamics | Atsuhiro Muto |
| ACC44-P03 | Temporary slow-down associated with drainage of a large subglacial lake, Totten Glacier, East Antarctica | Jeremy Paul Winberry |
| ACC44-P04 | GlacierPro - autonomous methane profiler for tidewater glaciers | Christian Juncher Joergensen |
| ACC44-P05 | Investigating Subglacial Slip Through Basal Icequakes on Thwaites Glacier | Lucas Zoet |