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.
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)
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