Resonance in bidecadal and pentadecadal climate oscillations over the North Pacific : Role in climatic regime shifts
The roles of interdecadal oscillations in climatic regime shifts, which are observed as rapid strength changes in the Aleutian low in winter and spring seasons, have been analyzed. A regime shift results from simultaneous phase reversals between pentadecadal and bidecadal variations, which synchroni...
Published in: | Geophysical Research Letters |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Geophysical Union
|
Subjects: | |
Online Access: | http://hdl.handle.net/2115/21813 https://doi.org/10.1029/1999GL900119 |
id |
fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/21813 |
---|---|
record_format |
openpolar |
spelling |
fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/21813 2023-05-15T13:14:55+02:00 Resonance in bidecadal and pentadecadal climate oscillations over the North Pacific : Role in climatic regime shifts Minobe, Shoshiro http://hdl.handle.net/2115/21813 https://doi.org/10.1029/1999GL900119 eng eng American Geophysical Union http://hdl.handle.net/2115/21813 Geophysical Research Letters, 26(7): 855-858 http://dx.doi.org/10.1029/1999GL900119 An edited version of this paper was published by AGU. Copyright 1999 American Geophysical Union. 451.8 article (author version) fthokunivhus https://doi.org/10.1029/1999GL900119 2022-11-18T01:01:25Z The roles of interdecadal oscillations in climatic regime shifts, which are observed as rapid strength changes in the Aleutian low in winter and spring seasons, have been analyzed. A regime shift results from simultaneous phase reversals between pentadecadal and bidecadal variations, which synchronize with one another at a relative period of three. The pentadecadal variation, which is observed in both winter and spring seasons, provides the basic timescale of regime shifts, while the bidecadal variation, which is observed only in winter, characterizes the rapidity of the shifts. A Monte-Carlo simulation has shown that the simultaneous phase reversals or resonance between the pentadecadal and bidecadal variations reflect a physical linkage between them and do not coincide accidentally. The role of this synchronization feature for assessing and predicting regime shifts is discussed. Article in Journal/Newspaper aleutian low Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Pacific Geophysical Research Letters 26 7 855 858 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
451.8 |
spellingShingle |
451.8 Minobe, Shoshiro Resonance in bidecadal and pentadecadal climate oscillations over the North Pacific : Role in climatic regime shifts |
topic_facet |
451.8 |
description |
The roles of interdecadal oscillations in climatic regime shifts, which are observed as rapid strength changes in the Aleutian low in winter and spring seasons, have been analyzed. A regime shift results from simultaneous phase reversals between pentadecadal and bidecadal variations, which synchronize with one another at a relative period of three. The pentadecadal variation, which is observed in both winter and spring seasons, provides the basic timescale of regime shifts, while the bidecadal variation, which is observed only in winter, characterizes the rapidity of the shifts. A Monte-Carlo simulation has shown that the simultaneous phase reversals or resonance between the pentadecadal and bidecadal variations reflect a physical linkage between them and do not coincide accidentally. The role of this synchronization feature for assessing and predicting regime shifts is discussed. |
format |
Article in Journal/Newspaper |
author |
Minobe, Shoshiro |
author_facet |
Minobe, Shoshiro |
author_sort |
Minobe, Shoshiro |
title |
Resonance in bidecadal and pentadecadal climate oscillations over the North Pacific : Role in climatic regime shifts |
title_short |
Resonance in bidecadal and pentadecadal climate oscillations over the North Pacific : Role in climatic regime shifts |
title_full |
Resonance in bidecadal and pentadecadal climate oscillations over the North Pacific : Role in climatic regime shifts |
title_fullStr |
Resonance in bidecadal and pentadecadal climate oscillations over the North Pacific : Role in climatic regime shifts |
title_full_unstemmed |
Resonance in bidecadal and pentadecadal climate oscillations over the North Pacific : Role in climatic regime shifts |
title_sort |
resonance in bidecadal and pentadecadal climate oscillations over the north pacific : role in climatic regime shifts |
publisher |
American Geophysical Union |
url |
http://hdl.handle.net/2115/21813 https://doi.org/10.1029/1999GL900119 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
aleutian low |
genre_facet |
aleutian low |
op_relation |
http://hdl.handle.net/2115/21813 Geophysical Research Letters, 26(7): 855-858 http://dx.doi.org/10.1029/1999GL900119 |
op_rights |
An edited version of this paper was published by AGU. Copyright 1999 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/1999GL900119 |
container_title |
Geophysical Research Letters |
container_volume |
26 |
container_issue |
7 |
container_start_page |
855 |
op_container_end_page |
858 |
_version_ |
1766266136606801920 |