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Comparisons of Circumpolar Deep Water variability in the Amundsen Sea between simulation and observations

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Title
Comparisons of Circumpolar Deep Water variability in the Amundsen Sea between simulation and observations
Other Titles
아문젠해 환남극심층수 모델 관측 비교
Authors
Park, Taewook
Kim, Tae-Wan
Cho, Kyoung-Ho
Lee, SangHoon
Issue Date
2018
Citation
Park, Taewook, et al. 2018. Comparisons of Circumpolar Deep Water variability in the Amundsen Sea between simulation and observations. Forum for Research into Ice Shelf Process. Ossos. 2018.09.03~2018.09.06.
Abstract
Outlet glaciers of the Amundsen Sea Embayment (ASE), West Antarctica, have thinned over recent decades. Circumpolar Deep Water (CDW) originated from Antarctic Circumpolar Current is responsible for the thinning due to basal melting beneath ice shelves in the ASE. Observations based on mooring stations as well as hydrographic survey during the past decade have revealed that CDW intrusion into the ASE shows large year-to-year variations. In this preliminary study on cross-shelf and on-shelf processes, we validate a simulation (2001-2016) of a high-resolution MITgcm ocean model that allows ice shelf-ocean interaction, by comparing with observational data including a recent Araon expedition. Also, we find that zonal wind at the shelf edge can contribute to CDW intrusion from analysis of Mercator-Ocean re-analysis data (19932015), thereby delivering more heat into the ASE; however, oceanic responses to local forcing could be underestimated because of a low horizontal resolution and no ice shelf-ocean interaction in the cavity.
URI
https://repository.kopri.re.kr/handle/201206/12341
Conference Name
Forum for Research into Ice Shelf Process
Conference Place
Ossos
Conference Date
2018.09.03~2018.09.06
Type
Poster
Indexed
포스터
Appears in Collections  
2018-2018, Ocean-to-Ice Interactions in Amundsen Sea: Ice shelf melting and its impact on ocean processes (18-18) / Kim, Tae-Wan (PE18060)
2017-2017, Ocean-to-Ice Interactions in Amundsen Sea: Ice shelf melting and its impact on ocean processes (17-17) / Lee, SangHoon (PE17060)
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