Intrusion of Circumpolar Deep Water over the continental shelf in the central Amundsen Sea
Cited 0 time in
Cited 0 time in
-
Title
-
Intrusion of Circumpolar Deep Water over the continental shelf in the central Amundsen Sea
-
Other Titles
-
아문젠해역으로 유입되는 남극순환류.
-
Authors
-
Lee, Jae-Hak
Kim, Tae-Wan
A. Wahlin
Ha, Ho Kyung
Lee, Sang H.
-
Keywords
-
Amundsen Sea; CDW
-
Issue Date
-
2012
-
Citation
-
Lee, Jae-Hak, et al. 2012. Intrusion of Circumpolar Deep Water over the continental shelf in the central Amundsen Sea. 2012 SCAR Open Science Meeting.. 2012 SCAR Open Science Meeting. 2012.11.23~.
-
Abstract
-
The Amundsen Sea sector is the most rapidly changing region of the Antarctic ice sheets. It has
been claimed that the rapid retreat of the glaciers (or ice sheets) is primarily related to the
intrusion of warm Circumpolar Deep Water (CDW) which acts as an oceanic heat source. The Amundsen
shelf troughs were suspected to be main conduits supplying warm CDW onto the continental shelf,
eroding the underside of the ice sheets and glaciers.
Despite the critical role of CDW in the continental shelf of the Amundsen Sea, vital information is
still lacking concerning the spatial-temporal variability of CDW. This is mainly because the
Amundsen Sea is remotely located and the harsh weather and sea conditions limit the access to its
inner shelf. This pronounced lack of data hinders the evaluation and prediction of physical
processes and associated biogeochemical processes in the Amundsen Sea. Using the icebreaker R/V
Araon, a multi-disciplinary scientific cruise was conducted between December, 2010 and January,
2011 to reveal the spatial distribution of CDW on the Amundsen shelf.
During the expedition, total 30 CTD stations were visited. Warm CDW occupied a large volume
seaward of the continental slope. During the transport onto the continental shelf it is modified by
subsurface melting processes and interaction with Antarctic Surface Water into a fresher and colder
water mass, Modified CDW (MCDW). Two crW) which acts as an oceanic heat source. The Amundsen
shelf troughs were suspected to be main conduits supplying warm CDW onto the continental shelf,
eroding the underside of the ice sheets and glaciers.
Despite the critical role of CDW in the continental shelf of the Amundsen Sea, vital information is
still lacking concerning the spatial-temporal variability of CDW. This is mainly because the
Amundsen Sea is remotely located and the harsh weather and sea conditions limit the access to its
inner shelf. This pronounced lack of data hinders the e
-
URI
-
https://repository.kopri.re.kr/handle/201206/8383
-
Conference Name
-
2012 SCAR Open Science Meeting.
-
Conference Place
-
2012 SCAR Open Science Meeting
-
Conference Date
-
2012.11.23~
-
Type
-
Proceeding
-
Indexed
-
Pro(초록)국외
- Appears in Collections
- 2012-2013, Physical & Bio-geochemical Processes in the Polar Sea Ice Regions: Their Roles & Responses in Global Climate Change (12-13) / Lee, Sang H. (PP12010; PP13020)
- Files in This Item
-
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.