DOI: 10.1175/JCLI-D-17-0506.1
Scopus记录号: 2-s2.0-85048497274
论文题名: Interannual to decadal variability of the upper-ocean heat content in the western North Pacific and its relationship to oceanic and atmospheric variability
作者: Na H. ; Kim K.-Y. ; Minobe S. ; Sasaki Y.N.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 13 起始页码: 5107
结束页码: 5125
语种: 英语
英文关键词: Climate variability
; Decadal variability
; Interannual variability
; Ocean circulation
; Ocean dynamics
; Oceanic variability
Scopus关键词: Fighter aircraft
; Mechanical waves
; Ocean currents
; Wave propagation
; Climate variability
; Decadal variability
; Interannual variability
; Ocean circulation
; Ocean dynamics
; Oceanic variabilities
; Climate change
; air-sea interaction
; annual variation
; atmosphere-ocean coupling
; atmospheric forcing
; baroclinic motion
; climate feedback
; decadal variation
; heat flow
; oceanic circulation
; prediction
; Rossby wave
; satellite altimetry
; three-dimensional modeling
; upper ocean
; Kuroshio Extension
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: Three-dimensional oceanic thermal structures and variability in the western North Pacific (NP) are examined on the interannual to decadal time scales and their relationship to oceanic and atmospheric variability is discussed by analyzing observation and reanalysis data for 45 years (1964-2008), which is much longer than the satellite-altimetry period. It is shown that the meridional shift of the Kuroshio Extension (KE) and subarctic frontal zone (SAFZ) is associated with the overall cooling/warming over the KE and SAFZ region (KE-SAFZ mode). It appears, however, that changes in KE strength induce different signs of thermal anomalies to the south and north of the KE, not extended to the SAFZ (KE mode), possibly contributing to noncoherent variability between the KE and SAFZ. Thus, the KE and SAFZ are dependent on each other in the context of the KE-SAFZ mode, while the KE is independent of the SAFZ in terms of the KE mode. This intricate relationship is associated with different linkages to atmospheric variability; the KE-SAFZ mode exhibits a relatively fast response to the large-scale wind stress curl forcing in the NP, whereas the KE mode is related to a delayed response to the atmospheric forcing via jet-trapped baroclinic Rossby wave propagation. It is suggested that further knowledge of the underlying mechanisms of the two modes would contribute to understanding ocean-atmosphere feedback as well as potential predictability over the western boundary current region in the NP. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111494
Appears in Collections: 气候减缓与适应
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作者单位: School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea; Research Institute of Oceanography, Seoul National University, Seoul, South Korea; Graduate School of Science, Hokkaido University, Sapporo, Hokkaido, Japan
Recommended Citation:
Na H.,Kim K.-Y.,Minobe S.,et al. Interannual to decadal variability of the upper-ocean heat content in the western North Pacific and its relationship to oceanic and atmospheric variability[J]. Journal of Climate,2018-01-01,31(13)