Ocean mixed layer processes in the Pacific Decadal Oscillation in coupled general circulation models

Bo Young Yim; Yign Noh; Sang Wook Yeh; Jong Seong Kug; Hong Sik Min; Bo Qiu

doi:10.1007/s00382-012-1630-7

Ocean mixed layer processes in the Pacific Decadal Oscillation in coupled general circulation models

Bo Young Yim, Yign Noh, Sang Wook Yeh, Jong Seong Kug, Hong Sik Min, Bo Qiu

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

It is investigated how the Pacific Decadal Oscillation (PDO) is simulated differently among various coupled general circulation models (CGCMs), and how it is related to the heat budget of the simulated ocean mixed layer, which includes the surface heat flux and ocean heat transport. For this purpose the dataset of the climate of the 20th Century experiment (20C3M) from nine CGCMs reported to IPCC's AR4 are used, while the MRI and MIROC models are examined in detail. Detailed analyses of these two CGCMs reveal that the PDO is mainly affected by ocean heat transport rather than surface heat flux, in particular in the MRI model which has a larger contribution of ocean heat transport to the heat budget. It is found that the ocean heat transport due to Ekman advection versus geostrophic advection contributes differently to the PDO in the western and central North Pacific. Specifically, the strength of PDO tends to be larger for CGCMs with a larger ocean heat transport in the region.

Original language	English
Pages (from-to)	1407-1417
Number of pages	11
Journal	Climate Dynamics
Volume	41
Issue number	5-6
DOIs	https://doi.org/10.1007/s00382-012-1630-7
Publication status	Published - 2013 Sept

Bibliographical note

Funding Information:
We acknowledge the international modeling groups for providing their data for analysis, the Program for Climate Model Diagnosis and Intercomparison (PCMDI) for collecting and archiving the model data, the JSC/CLIVAR Working Group on Coupled Modeling (WGCM) and their Coupled Model Intercomparison Project (CMIP) and Climate Simulation Panel for organizing the model data analysis activity, and the IPCC WG1 TSU for technical support. The IPCC Data Archive at Lawrence Livermore National Laboratory is supported by the Office of Science, US Department of Energy. This work was supported by the “National Research Foundation of Korea Grant funded by the Korean Government (MEST)” (NRF-2009-C1AAA001-2009-0093042). Y. Noh was funded by the Korea Meteorological Administration Research and Development Program under Grant CATER 2012-6090. B. Qiu was supported by NSF through grant OCE-0926594.

All Science Journal Classification (ASJC) codes

Atmospheric Science

Access to Document

10.1007/s00382-012-1630-7

Cite this

@article{073d308582e0412a984163dea2dd3b2d,

title = "Ocean mixed layer processes in the Pacific Decadal Oscillation in coupled general circulation models",

abstract = "It is investigated how the Pacific Decadal Oscillation (PDO) is simulated differently among various coupled general circulation models (CGCMs), and how it is related to the heat budget of the simulated ocean mixed layer, which includes the surface heat flux and ocean heat transport. For this purpose the dataset of the climate of the 20th Century experiment (20C3M) from nine CGCMs reported to IPCC's AR4 are used, while the MRI and MIROC models are examined in detail. Detailed analyses of these two CGCMs reveal that the PDO is mainly affected by ocean heat transport rather than surface heat flux, in particular in the MRI model which has a larger contribution of ocean heat transport to the heat budget. It is found that the ocean heat transport due to Ekman advection versus geostrophic advection contributes differently to the PDO in the western and central North Pacific. Specifically, the strength of PDO tends to be larger for CGCMs with a larger ocean heat transport in the region.",

author = "Yim, {Bo Young} and Yign Noh and Yeh, {Sang Wook} and Kug, {Jong Seong} and Min, {Hong Sik} and Bo Qiu",

note = "Funding Information: We acknowledge the international modeling groups for providing their data for analysis, the Program for Climate Model Diagnosis and Intercomparison (PCMDI) for collecting and archiving the model data, the JSC/CLIVAR Working Group on Coupled Modeling (WGCM) and their Coupled Model Intercomparison Project (CMIP) and Climate Simulation Panel for organizing the model data analysis activity, and the IPCC WG1 TSU for technical support. The IPCC Data Archive at Lawrence Livermore National Laboratory is supported by the Office of Science, US Department of Energy. This work was supported by the “National Research Foundation of Korea Grant funded by the Korean Government (MEST)” (NRF-2009-C1AAA001-2009-0093042). Y. Noh was funded by the Korea Meteorological Administration Research and Development Program under Grant CATER 2012-6090. B. Qiu was supported by NSF through grant OCE-0926594. ",

year = "2013",

month = sep,

doi = "10.1007/s00382-012-1630-7",

language = "English",

volume = "41",

pages = "1407--1417",

journal = "Climate Dynamics",

issn = "0930-7575",

publisher = "Springer Verlag",

number = "5-6",

}

TY - JOUR

T1 - Ocean mixed layer processes in the Pacific Decadal Oscillation in coupled general circulation models

AU - Yim, Bo Young

AU - Noh, Yign

AU - Yeh, Sang Wook

AU - Kug, Jong Seong

AU - Min, Hong Sik

AU - Qiu, Bo

N1 - Funding Information: We acknowledge the international modeling groups for providing their data for analysis, the Program for Climate Model Diagnosis and Intercomparison (PCMDI) for collecting and archiving the model data, the JSC/CLIVAR Working Group on Coupled Modeling (WGCM) and their Coupled Model Intercomparison Project (CMIP) and Climate Simulation Panel for organizing the model data analysis activity, and the IPCC WG1 TSU for technical support. The IPCC Data Archive at Lawrence Livermore National Laboratory is supported by the Office of Science, US Department of Energy. This work was supported by the “National Research Foundation of Korea Grant funded by the Korean Government (MEST)” (NRF-2009-C1AAA001-2009-0093042). Y. Noh was funded by the Korea Meteorological Administration Research and Development Program under Grant CATER 2012-6090. B. Qiu was supported by NSF through grant OCE-0926594.

PY - 2013/9

Y1 - 2013/9

N2 - It is investigated how the Pacific Decadal Oscillation (PDO) is simulated differently among various coupled general circulation models (CGCMs), and how it is related to the heat budget of the simulated ocean mixed layer, which includes the surface heat flux and ocean heat transport. For this purpose the dataset of the climate of the 20th Century experiment (20C3M) from nine CGCMs reported to IPCC's AR4 are used, while the MRI and MIROC models are examined in detail. Detailed analyses of these two CGCMs reveal that the PDO is mainly affected by ocean heat transport rather than surface heat flux, in particular in the MRI model which has a larger contribution of ocean heat transport to the heat budget. It is found that the ocean heat transport due to Ekman advection versus geostrophic advection contributes differently to the PDO in the western and central North Pacific. Specifically, the strength of PDO tends to be larger for CGCMs with a larger ocean heat transport in the region.

AB - It is investigated how the Pacific Decadal Oscillation (PDO) is simulated differently among various coupled general circulation models (CGCMs), and how it is related to the heat budget of the simulated ocean mixed layer, which includes the surface heat flux and ocean heat transport. For this purpose the dataset of the climate of the 20th Century experiment (20C3M) from nine CGCMs reported to IPCC's AR4 are used, while the MRI and MIROC models are examined in detail. Detailed analyses of these two CGCMs reveal that the PDO is mainly affected by ocean heat transport rather than surface heat flux, in particular in the MRI model which has a larger contribution of ocean heat transport to the heat budget. It is found that the ocean heat transport due to Ekman advection versus geostrophic advection contributes differently to the PDO in the western and central North Pacific. Specifically, the strength of PDO tends to be larger for CGCMs with a larger ocean heat transport in the region.

UR - http://www.scopus.com/inward/record.url?scp=84884701928&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84884701928&partnerID=8YFLogxK

U2 - 10.1007/s00382-012-1630-7

DO - 10.1007/s00382-012-1630-7

M3 - Article

AN - SCOPUS:84884701928

SN - 0930-7575

VL - 41

SP - 1407

EP - 1417

JO - Climate Dynamics

JF - Climate Dynamics

IS - 5-6

ER -

Ocean mixed layer processes in the Pacific Decadal Oscillation in coupled general circulation models

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this