기후모형에서 모사한 북태평양 혼합층깊이 평가

Title
기후모형에서 모사한 북태평양 혼합층깊이 평가
Alternative Title
Evaluation of mixed layer depth in the North Pacific Ocean simulated from CMIP3 models
Author(s)
장찬주; 박태욱; 김철호; 권경만; 김민우
KIOST Author(s)
Jang, Chan Joo(장찬주)Kwon, Kyungman(권경만)Kim, Minwoo(김민우)
Publication Year
2011-09-01
Abstract
This study investigates how well the coupled model intercomparison projects phase 3 (CMIP3) models simulate the mixed layer depth (MLD) in the North Pacific Ocean in present climate by comparing outputs from 11 CMIP3 models with MLD climatology based on observational data. The most common biases in winter MLD are a deep bias (about 50 % (120 m) deeper than the observation) in the Kuroshio Extension region (KE) and a shallow bias (about 30 % (80 m) shallower than the observation) in the Oyashio region. The deep bias in the KE is mainly driven by the fact that the simulated KE is too broad and goes too far north. The deep bias is also attributable to the too strong (30 % or greater than observation) midlatitude westeries in CMIP3 models. The shallow bias in the Oyashio region is related with stratification bias in the upper ocean. The pattern correlation between simulated MLDs and observed climatology for the North Pacific Ocean ranges 0.2 ~ 0.7, indicating poor performance of CMIP3 MLD simulation, compared with sea surface temperature and salinity whose pattern correlations are up to 0.9. Our analysis suggests that the CMIP3 climate models show a substantial MLD bias and need significant improvement.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/28225
Bibliographic Citation
China-Korea Joint Workshop on Northwestern Pacific-Indian Ocean Circulation and theic Climate Effect, pp.63 - 70, 2011
Publisher
FIO,KORDI
Type
Conference
Language
English
Publisher
FIO,KORDI
Related Researcher
Research Interests

Ocean Modeling,Ocean Data Management,해양모형운용,해양자료처리

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