지난 최대 빙하기 동안 북태평양의 순환과 특성 변화 연구

Title
지난 최대 빙하기 동안 북태평양의 순환과 특성 변화 연구
Alternative Title
Circulation and Property Changes in the North Pacific Ocean for the Last Glacial Maximum
Author(s)
김성중; 박영규
KIOST Author(s)
Park, Young Gyu(박영규)
Publication Year
2007-05-31
Abstract
The property and circulation changes in the North Pacific Ocean during the last glacial maximum (LGM) are investigated using a coupled ocean-atmosphere-sea ice climate model. In the LGM, an increase in potential density in upper layers of the northern North Pacific makes the water column highly unstable and eventually results in the enhancement of the North Pacific Intermediate Water (NPIW) production. The NPIW outflow reaches deeper layers than in present, but confined to the North Pacific, in consistent with proxy evidence. The increase in potential density is predominantly due to the increase in salinity and secondarily decreases in temperature. The increase in surface salinity is especially high in the Sea of Okhotsk and the western Bering Sea, which are the possible source areas of the glacial NPIW production. In these regions, an increase in brine release due to the markedincrease in sea ice, the excessive evaporation over precipitation, and the reduction in river discharge contribute to the increase in surface salinity. In short, reduction in freshwater input to the northern North Pacific is mainly responsible for the increase in the production and outflow of glacial NPIW.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/30509
Bibliographic Citation
2006년도 한국해양학회 춘계학술발표대회 (한국해양과학기술협의회 공동학술대회), pp.279, 2007
Publisher
한국해양학회
Type
Conference
Language
English
Publisher
한국해양학회
Related Researcher
Research Interests

ocean circulation,ocean mixing,marine debris,해양순환,해양혼합,해양부유물

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse