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Study to Understand the Antarctic Ice Shelf/ Ice Sheet Instability

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Study to Understand the Antarctic Ice Shelf/ Ice Sheet Instability
Other Titles
남극 빙붕-빙상 안정도 이해 위한 연구
Jin, Emilia Kyung
Na, Ji Sung
Park, In-Woo
Kim, Taekyun
Lee, Won Sang
Antarctic Ice Shelf/Ice Sheet Instabilityice modeling
Issue Date
Jin, Emilia Kyung, et al. 2019. Study to Understand the Antarctic Ice Shelf/ Ice Sheet Instability. 2019 UNIST Antarctic Cooperation Workshop. Seoul COEX. 2019.11.22~2019.11.23.
We conduct the future projection runs under the idealized and RCP scenarios using ISSM in David Glacier, East Antarctica. Uncovering the subglacial ridge near the grounding line in BedMachine simulation reduces a mass discharge compared to the Bedmap2 simulation. Model implementing new bed geometry is improved with reduced misfit of ice velocity on whole domain. Using snowfalls from CMIP5 CGCMs as SMB forcings of ISSM, the future projections upto 2100/2300 show that negative sea level contribution of regional Antarctic ice sheet changes from multi-model ensemble mean because snowfalls increase with time for all scenarios in most models in this region.
Conference Name
2019 UNIST Antarctic Cooperation Workshop
Conference Place
Seoul COEX
Conference Date
Appears in Collections  
2019-2020, Land-Ice/Ocean Network Exploration with Semiautonomous Systems: Thwaites Glacier (LIONESS/TG) - Toward understanding the fate of the Thwaites Glacier by abrupt collapse and its impact on global sea level changes - (19-20) / Lee, Won Sang (PM19020)
2019-2019, Investigation of key elements in future projections of East Antarctic Ice Sheet using ice sheet model (19-19) / Jin, Emilia Kyung (PE19410)
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