지구온난화에 따른 혼합층변화 및 일차생산에 미치는 영향

Title
지구온난화에 따른 혼합층변화 및 일차생산에 미치는 영향
Alternative Title
Changes in the mixed layer depth due to global warming and their impacts on primary production
Author(s)
장찬주; 유신재; 박지수; 박태욱
KIOST Author(s)
Jang, Chan Joo(장찬주)
Publication Year
2011-11-28
Abstract
We investigates changes in the mixed layer depth (MLD) in the North Pacific Ocean in response to global warming and their impacts on primary production by comparing outputs from 11 models of the coupled model intercomparison projects phase 3. The MLD in the 21st century decreases in most regions of the North Pacific, whereas the spatial pattern of the MLD is nearly unchanged. The overall shoaling results in part from intensified upper-ocean stratification caused by both surface warming and freshening. A significant MLD decrease (> 30 m) is found in the Kuroshio Extension (KE), which is predominantly driven by reduced surface cooling, caused by weakening of wind. Associated with the mixed layer shoaling in the KE, the primary production component resulting from seasonal vertical mixing will be reduced by 10.7-40.3% (ranges of medians from 11 models) via decreased nitrate fluxes from below. Spring blooms in most models are projected to initiate earlier in the KE by 0-13 days (ranges of medians from 11 models). Despite the overall trends, the magnitude of changes in primary production and timing of spring blooms are considerably different depending on models and latitudes.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/28008
Bibliographic Citation
5th China-Japan-Korea IMBER Symposium and Training, pp.43 - 44, 2011
Publisher
East China Normal University, SKLEC, the China GLOBEC IMBER Programme
Type
Conference
Language
English
Publisher
East China Normal University, SKLEC, the China GLOBEC IMBER Programme
Related Researcher
Research Interests

upper ocean dynamics,regional climate modeling,ocean climate change,해양상층역학,지역기후모델링,해양기후변화

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