Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability
Low-frequency sea level variations with periods longer than interannual time scales have been receiving much attention recently, with the aim of distinguishing the anthropogenic regional sea level change signal from the natural fluctuations. Based on the available sea level products, this study find...
Ausführliche Beschreibung
Autor*in: |
Kewei Lyu [verfasserIn] |
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Format: |
Artikel |
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Sprache: |
Englisch |
Erschienen: |
2017 |
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Schlagwörter: |
Sea surface temperature anomalies |
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Systematik: |
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Übergeordnetes Werk: |
Enthalten in: Journal of climate - Boston, Mass. [u.a.] : AMS, 1988, 30(2017), 13, Seite 5097 |
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Übergeordnetes Werk: |
volume:30 ; year:2017 ; number:13 ; pages:5097 |
Links: |
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245 | 1 | 0 | |a Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability |
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520 | |a Low-frequency sea level variations with periods longer than interannual time scales have been receiving much attention recently, with the aim of distinguishing the anthropogenic regional sea level change signal from the natural fluctuations. Based on the available sea level products, this study finds that the dominant low-frequency sea level mode in the Pacific basin has both quasi-decadal variations and a multidecadal trend reversal in the early 1990s. The dominant sea level modes on these two time scales have different tropical structures: a west-east seesaw in the tropical Pacific on the multidecadal time scale and a dipole between the western and central tropical Pacific on the quasi-decadal time scale. These two sea level modes in the Pacific basin are closely related to the ENSO-like low-frequency climate variability on respective time scales but feature distinct surface wind forcing patterns and subbasin climate processes. The multidecadal sea level mode is associated with the Pacific decadal oscillation (PDO) and Aleutian low variations in the North Pacific and tropical Pacific sea surface temperature anomalies toward the eastern basin, while the quasi-decadal sea level mode is accompanied by tropical Pacific sea surface temperature anomalies centered in the central basin along with the North Pacific part, which resembles the North Pacific Oscillation (NPO) and its oceanic expressions [i.e., the North Pacific Gyre Oscillation (NPGO) and the Victoria mode]. The authors further conclude that the ENSO-like low-frequency variability, which has dominant influences on the Pacific sea level and climate, comprises at least two distinct modes with different spatial structures on quasi-decadal and multidecadal time scales, respectively. | ||
650 | 4 | |a Surface temperatures | |
650 | 4 | |a Sea surface | |
650 | 4 | |a Variability | |
650 | 4 | |a Surface wind | |
650 | 4 | |a Sea level | |
650 | 4 | |a North Pacific Oscillation | |
650 | 4 | |a Decadal variations | |
650 | 4 | |a Environmental science | |
650 | 4 | |a Climate change | |
650 | 4 | |a Sea level variations | |
650 | 4 | |a Anthropogenic factors | |
650 | 4 | |a Atmosphere | |
650 | 4 | |a Sea surface temperature anomalies | |
650 | 4 | |a Time | |
650 | 4 | |a El Nino | |
650 | 4 | |a Aleutian low | |
650 | 4 | |a Frequency | |
650 | 4 | |a Modes | |
650 | 4 | |a Sea surface temperatures | |
650 | 4 | |a El Nino phenomena | |
650 | 4 | |a Temperature effects | |
650 | 4 | |a Level (quantity) | |
650 | 4 | |a Laboratories | |
650 | 4 | |a Climate | |
650 | 4 | |a Studies | |
650 | 4 | |a Earth science | |
650 | 4 | |a Structures | |
650 | 4 | |a Pacific Decadal Oscillation | |
650 | 4 | |a Surface temperature | |
650 | 4 | |a Southern Oscillation | |
650 | 4 | |a Long-term changes | |
650 | 4 | |a Human influences | |
650 | 4 | |a Tropical environment | |
650 | 4 | |a El Nino-Southern Oscillation event | |
650 | 4 | |a Anomalies | |
650 | 4 | |a Temperature anomalies | |
650 | 4 | |a Loads (forces) | |
650 | 4 | |a Sea surface temperature | |
650 | 4 | |a Fluctuations | |
650 | 4 | |a Spatial discrimination | |
650 | 4 | |a Sea level changes | |
700 | 0 | |a Xuebin Zhang |4 oth | |
700 | 0 | |a John A Church |4 oth | |
700 | 0 | |a Jianyu Hu |4 oth | |
700 | 0 | |a Jin-Yi Yu |4 oth | |
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773 | 1 | 8 | |g volume:30 |g year:2017 |g number:13 |g pages:5097 |
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PQ20171125 (DE-627)OLC199622297X (DE-599)GBVOLC199622297X (PRQ)p933-4312b031f70331596b5e5c41b0681c7cd725b4614e9d25659465d9578639fef10 (KEY)0166131020170000030001305097distinguishingthequasidecadalandmultidecadalsealev DE-627 ger DE-627 rakwb eng 550 DE-600 UA 4548 AVZ rvk 38.82 bkl Kewei Lyu verfasserin aut Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Low-frequency sea level variations with periods longer than interannual time scales have been receiving much attention recently, with the aim of distinguishing the anthropogenic regional sea level change signal from the natural fluctuations. Based on the available sea level products, this study finds that the dominant low-frequency sea level mode in the Pacific basin has both quasi-decadal variations and a multidecadal trend reversal in the early 1990s. The dominant sea level modes on these two time scales have different tropical structures: a west-east seesaw in the tropical Pacific on the multidecadal time scale and a dipole between the western and central tropical Pacific on the quasi-decadal time scale. These two sea level modes in the Pacific basin are closely related to the ENSO-like low-frequency climate variability on respective time scales but feature distinct surface wind forcing patterns and subbasin climate processes. The multidecadal sea level mode is associated with the Pacific decadal oscillation (PDO) and Aleutian low variations in the North Pacific and tropical Pacific sea surface temperature anomalies toward the eastern basin, while the quasi-decadal sea level mode is accompanied by tropical Pacific sea surface temperature anomalies centered in the central basin along with the North Pacific part, which resembles the North Pacific Oscillation (NPO) and its oceanic expressions [i.e., the North Pacific Gyre Oscillation (NPGO) and the Victoria mode]. The authors further conclude that the ENSO-like low-frequency variability, which has dominant influences on the Pacific sea level and climate, comprises at least two distinct modes with different spatial structures on quasi-decadal and multidecadal time scales, respectively. Surface temperatures Sea surface Variability Surface wind Sea level North Pacific Oscillation Decadal variations Environmental science Climate change Sea level variations Anthropogenic factors Atmosphere Sea surface temperature anomalies Time El Nino Aleutian low Frequency Modes Sea surface temperatures El Nino phenomena Temperature effects Level (quantity) Laboratories Climate Studies Earth science Structures Pacific Decadal Oscillation Surface temperature Southern Oscillation Long-term changes Human influences Tropical environment El Nino-Southern Oscillation event Anomalies Temperature anomalies Loads (forces) Sea surface temperature Fluctuations Spatial discrimination Sea level changes Xuebin Zhang oth John A Church oth Jianyu Hu oth Jin-Yi Yu oth Enthalten in Journal of climate Boston, Mass. [u.a.] : AMS, 1988 30(2017), 13, Seite 5097 (DE-627)129622311 (DE-600)246750-1 (DE-576)018141331 0894-8755 nnns volume:30 year:2017 number:13 pages:5097 https://search.proquest.com/docview/1924739468 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2010 GBV_ILN_2012 UA 4548 38.82 AVZ AR 30 2017 13 5097 |
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PQ20171125 (DE-627)OLC199622297X (DE-599)GBVOLC199622297X (PRQ)p933-4312b031f70331596b5e5c41b0681c7cd725b4614e9d25659465d9578639fef10 (KEY)0166131020170000030001305097distinguishingthequasidecadalandmultidecadalsealev DE-627 ger DE-627 rakwb eng 550 DE-600 UA 4548 AVZ rvk 38.82 bkl Kewei Lyu verfasserin aut Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Low-frequency sea level variations with periods longer than interannual time scales have been receiving much attention recently, with the aim of distinguishing the anthropogenic regional sea level change signal from the natural fluctuations. Based on the available sea level products, this study finds that the dominant low-frequency sea level mode in the Pacific basin has both quasi-decadal variations and a multidecadal trend reversal in the early 1990s. The dominant sea level modes on these two time scales have different tropical structures: a west-east seesaw in the tropical Pacific on the multidecadal time scale and a dipole between the western and central tropical Pacific on the quasi-decadal time scale. These two sea level modes in the Pacific basin are closely related to the ENSO-like low-frequency climate variability on respective time scales but feature distinct surface wind forcing patterns and subbasin climate processes. The multidecadal sea level mode is associated with the Pacific decadal oscillation (PDO) and Aleutian low variations in the North Pacific and tropical Pacific sea surface temperature anomalies toward the eastern basin, while the quasi-decadal sea level mode is accompanied by tropical Pacific sea surface temperature anomalies centered in the central basin along with the North Pacific part, which resembles the North Pacific Oscillation (NPO) and its oceanic expressions [i.e., the North Pacific Gyre Oscillation (NPGO) and the Victoria mode]. The authors further conclude that the ENSO-like low-frequency variability, which has dominant influences on the Pacific sea level and climate, comprises at least two distinct modes with different spatial structures on quasi-decadal and multidecadal time scales, respectively. Surface temperatures Sea surface Variability Surface wind Sea level North Pacific Oscillation Decadal variations Environmental science Climate change Sea level variations Anthropogenic factors Atmosphere Sea surface temperature anomalies Time El Nino Aleutian low Frequency Modes Sea surface temperatures El Nino phenomena Temperature effects Level (quantity) Laboratories Climate Studies Earth science Structures Pacific Decadal Oscillation Surface temperature Southern Oscillation Long-term changes Human influences Tropical environment El Nino-Southern Oscillation event Anomalies Temperature anomalies Loads (forces) Sea surface temperature Fluctuations Spatial discrimination Sea level changes Xuebin Zhang oth John A Church oth Jianyu Hu oth Jin-Yi Yu oth Enthalten in Journal of climate Boston, Mass. [u.a.] : AMS, 1988 30(2017), 13, Seite 5097 (DE-627)129622311 (DE-600)246750-1 (DE-576)018141331 0894-8755 nnns volume:30 year:2017 number:13 pages:5097 https://search.proquest.com/docview/1924739468 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2010 GBV_ILN_2012 UA 4548 38.82 AVZ AR 30 2017 13 5097 |
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PQ20171125 (DE-627)OLC199622297X (DE-599)GBVOLC199622297X (PRQ)p933-4312b031f70331596b5e5c41b0681c7cd725b4614e9d25659465d9578639fef10 (KEY)0166131020170000030001305097distinguishingthequasidecadalandmultidecadalsealev DE-627 ger DE-627 rakwb eng 550 DE-600 UA 4548 AVZ rvk 38.82 bkl Kewei Lyu verfasserin aut Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Low-frequency sea level variations with periods longer than interannual time scales have been receiving much attention recently, with the aim of distinguishing the anthropogenic regional sea level change signal from the natural fluctuations. Based on the available sea level products, this study finds that the dominant low-frequency sea level mode in the Pacific basin has both quasi-decadal variations and a multidecadal trend reversal in the early 1990s. The dominant sea level modes on these two time scales have different tropical structures: a west-east seesaw in the tropical Pacific on the multidecadal time scale and a dipole between the western and central tropical Pacific on the quasi-decadal time scale. These two sea level modes in the Pacific basin are closely related to the ENSO-like low-frequency climate variability on respective time scales but feature distinct surface wind forcing patterns and subbasin climate processes. The multidecadal sea level mode is associated with the Pacific decadal oscillation (PDO) and Aleutian low variations in the North Pacific and tropical Pacific sea surface temperature anomalies toward the eastern basin, while the quasi-decadal sea level mode is accompanied by tropical Pacific sea surface temperature anomalies centered in the central basin along with the North Pacific part, which resembles the North Pacific Oscillation (NPO) and its oceanic expressions [i.e., the North Pacific Gyre Oscillation (NPGO) and the Victoria mode]. The authors further conclude that the ENSO-like low-frequency variability, which has dominant influences on the Pacific sea level and climate, comprises at least two distinct modes with different spatial structures on quasi-decadal and multidecadal time scales, respectively. Surface temperatures Sea surface Variability Surface wind Sea level North Pacific Oscillation Decadal variations Environmental science Climate change Sea level variations Anthropogenic factors Atmosphere Sea surface temperature anomalies Time El Nino Aleutian low Frequency Modes Sea surface temperatures El Nino phenomena Temperature effects Level (quantity) Laboratories Climate Studies Earth science Structures Pacific Decadal Oscillation Surface temperature Southern Oscillation Long-term changes Human influences Tropical environment El Nino-Southern Oscillation event Anomalies Temperature anomalies Loads (forces) Sea surface temperature Fluctuations Spatial discrimination Sea level changes Xuebin Zhang oth John A Church oth Jianyu Hu oth Jin-Yi Yu oth Enthalten in Journal of climate Boston, Mass. [u.a.] : AMS, 1988 30(2017), 13, Seite 5097 (DE-627)129622311 (DE-600)246750-1 (DE-576)018141331 0894-8755 nnns volume:30 year:2017 number:13 pages:5097 https://search.proquest.com/docview/1924739468 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2010 GBV_ILN_2012 UA 4548 38.82 AVZ AR 30 2017 13 5097 |
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PQ20171125 (DE-627)OLC199622297X (DE-599)GBVOLC199622297X (PRQ)p933-4312b031f70331596b5e5c41b0681c7cd725b4614e9d25659465d9578639fef10 (KEY)0166131020170000030001305097distinguishingthequasidecadalandmultidecadalsealev DE-627 ger DE-627 rakwb eng 550 DE-600 UA 4548 AVZ rvk 38.82 bkl Kewei Lyu verfasserin aut Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Low-frequency sea level variations with periods longer than interannual time scales have been receiving much attention recently, with the aim of distinguishing the anthropogenic regional sea level change signal from the natural fluctuations. Based on the available sea level products, this study finds that the dominant low-frequency sea level mode in the Pacific basin has both quasi-decadal variations and a multidecadal trend reversal in the early 1990s. The dominant sea level modes on these two time scales have different tropical structures: a west-east seesaw in the tropical Pacific on the multidecadal time scale and a dipole between the western and central tropical Pacific on the quasi-decadal time scale. These two sea level modes in the Pacific basin are closely related to the ENSO-like low-frequency climate variability on respective time scales but feature distinct surface wind forcing patterns and subbasin climate processes. The multidecadal sea level mode is associated with the Pacific decadal oscillation (PDO) and Aleutian low variations in the North Pacific and tropical Pacific sea surface temperature anomalies toward the eastern basin, while the quasi-decadal sea level mode is accompanied by tropical Pacific sea surface temperature anomalies centered in the central basin along with the North Pacific part, which resembles the North Pacific Oscillation (NPO) and its oceanic expressions [i.e., the North Pacific Gyre Oscillation (NPGO) and the Victoria mode]. The authors further conclude that the ENSO-like low-frequency variability, which has dominant influences on the Pacific sea level and climate, comprises at least two distinct modes with different spatial structures on quasi-decadal and multidecadal time scales, respectively. Surface temperatures Sea surface Variability Surface wind Sea level North Pacific Oscillation Decadal variations Environmental science Climate change Sea level variations Anthropogenic factors Atmosphere Sea surface temperature anomalies Time El Nino Aleutian low Frequency Modes Sea surface temperatures El Nino phenomena Temperature effects Level (quantity) Laboratories Climate Studies Earth science Structures Pacific Decadal Oscillation Surface temperature Southern Oscillation Long-term changes Human influences Tropical environment El Nino-Southern Oscillation event Anomalies Temperature anomalies Loads (forces) Sea surface temperature Fluctuations Spatial discrimination Sea level changes Xuebin Zhang oth John A Church oth Jianyu Hu oth Jin-Yi Yu oth Enthalten in Journal of climate Boston, Mass. [u.a.] : AMS, 1988 30(2017), 13, Seite 5097 (DE-627)129622311 (DE-600)246750-1 (DE-576)018141331 0894-8755 nnns volume:30 year:2017 number:13 pages:5097 https://search.proquest.com/docview/1924739468 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OLC-FOR SSG-OPC-GGO GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2010 GBV_ILN_2012 UA 4548 38.82 AVZ AR 30 2017 13 5097 |
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Kewei Lyu |
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Kewei Lyu ddc 550 rvk UA 4548 bkl 38.82 misc Surface temperatures misc Sea surface misc Variability misc Surface wind misc Sea level misc North Pacific Oscillation misc Decadal variations misc Environmental science misc Climate change misc Sea level variations misc Anthropogenic factors misc Atmosphere misc Sea surface temperature anomalies misc Time misc El Nino misc Aleutian low misc Frequency misc Modes misc Sea surface temperatures misc El Nino phenomena misc Temperature effects misc Level (quantity) misc Laboratories misc Climate misc Studies misc Earth science misc Structures misc Pacific Decadal Oscillation misc Surface temperature misc Southern Oscillation misc Long-term changes misc Human influences misc Tropical environment misc El Nino-Southern Oscillation event misc Anomalies misc Temperature anomalies misc Loads (forces) misc Sea surface temperature misc Fluctuations misc Spatial discrimination misc Sea level changes Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability |
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550 DE-600 UA 4548 AVZ rvk 38.82 bkl Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability Surface temperatures Sea surface Variability Surface wind Sea level North Pacific Oscillation Decadal variations Environmental science Climate change Sea level variations Anthropogenic factors Atmosphere Sea surface temperature anomalies Time El Nino Aleutian low Frequency Modes Sea surface temperatures El Nino phenomena Temperature effects Level (quantity) Laboratories Climate Studies Earth science Structures Pacific Decadal Oscillation Surface temperature Southern Oscillation Long-term changes Human influences Tropical environment El Nino-Southern Oscillation event Anomalies Temperature anomalies Loads (forces) Sea surface temperature Fluctuations Spatial discrimination Sea level changes |
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ddc 550 rvk UA 4548 bkl 38.82 misc Surface temperatures misc Sea surface misc Variability misc Surface wind misc Sea level misc North Pacific Oscillation misc Decadal variations misc Environmental science misc Climate change misc Sea level variations misc Anthropogenic factors misc Atmosphere misc Sea surface temperature anomalies misc Time misc El Nino misc Aleutian low misc Frequency misc Modes misc Sea surface temperatures misc El Nino phenomena misc Temperature effects misc Level (quantity) misc Laboratories misc Climate misc Studies misc Earth science misc Structures misc Pacific Decadal Oscillation misc Surface temperature misc Southern Oscillation misc Long-term changes misc Human influences misc Tropical environment misc El Nino-Southern Oscillation event misc Anomalies misc Temperature anomalies misc Loads (forces) misc Sea surface temperature misc Fluctuations misc Spatial discrimination misc Sea level changes |
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ddc 550 rvk UA 4548 bkl 38.82 misc Surface temperatures misc Sea surface misc Variability misc Surface wind misc Sea level misc North Pacific Oscillation misc Decadal variations misc Environmental science misc Climate change misc Sea level variations misc Anthropogenic factors misc Atmosphere misc Sea surface temperature anomalies misc Time misc El Nino misc Aleutian low misc Frequency misc Modes misc Sea surface temperatures misc El Nino phenomena misc Temperature effects misc Level (quantity) misc Laboratories misc Climate misc Studies misc Earth science misc Structures misc Pacific Decadal Oscillation misc Surface temperature misc Southern Oscillation misc Long-term changes misc Human influences misc Tropical environment misc El Nino-Southern Oscillation event misc Anomalies misc Temperature anomalies misc Loads (forces) misc Sea surface temperature misc Fluctuations misc Spatial discrimination misc Sea level changes |
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ddc 550 rvk UA 4548 bkl 38.82 misc Surface temperatures misc Sea surface misc Variability misc Surface wind misc Sea level misc North Pacific Oscillation misc Decadal variations misc Environmental science misc Climate change misc Sea level variations misc Anthropogenic factors misc Atmosphere misc Sea surface temperature anomalies misc Time misc El Nino misc Aleutian low misc Frequency misc Modes misc Sea surface temperatures misc El Nino phenomena misc Temperature effects misc Level (quantity) misc Laboratories misc Climate misc Studies misc Earth science misc Structures misc Pacific Decadal Oscillation misc Surface temperature misc Southern Oscillation misc Long-term changes misc Human influences misc Tropical environment misc El Nino-Southern Oscillation event misc Anomalies misc Temperature anomalies misc Loads (forces) misc Sea surface temperature misc Fluctuations misc Spatial discrimination misc Sea level changes |
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Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability |
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Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability |
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Kewei Lyu |
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distinguishing the quasi-decadal and multidecadal sea level and climate variations in the pacific: implications for the enso-like low-frequency variability |
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Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability |
abstract |
Low-frequency sea level variations with periods longer than interannual time scales have been receiving much attention recently, with the aim of distinguishing the anthropogenic regional sea level change signal from the natural fluctuations. Based on the available sea level products, this study finds that the dominant low-frequency sea level mode in the Pacific basin has both quasi-decadal variations and a multidecadal trend reversal in the early 1990s. The dominant sea level modes on these two time scales have different tropical structures: a west-east seesaw in the tropical Pacific on the multidecadal time scale and a dipole between the western and central tropical Pacific on the quasi-decadal time scale. These two sea level modes in the Pacific basin are closely related to the ENSO-like low-frequency climate variability on respective time scales but feature distinct surface wind forcing patterns and subbasin climate processes. The multidecadal sea level mode is associated with the Pacific decadal oscillation (PDO) and Aleutian low variations in the North Pacific and tropical Pacific sea surface temperature anomalies toward the eastern basin, while the quasi-decadal sea level mode is accompanied by tropical Pacific sea surface temperature anomalies centered in the central basin along with the North Pacific part, which resembles the North Pacific Oscillation (NPO) and its oceanic expressions [i.e., the North Pacific Gyre Oscillation (NPGO) and the Victoria mode]. The authors further conclude that the ENSO-like low-frequency variability, which has dominant influences on the Pacific sea level and climate, comprises at least two distinct modes with different spatial structures on quasi-decadal and multidecadal time scales, respectively. |
abstractGer |
Low-frequency sea level variations with periods longer than interannual time scales have been receiving much attention recently, with the aim of distinguishing the anthropogenic regional sea level change signal from the natural fluctuations. Based on the available sea level products, this study finds that the dominant low-frequency sea level mode in the Pacific basin has both quasi-decadal variations and a multidecadal trend reversal in the early 1990s. The dominant sea level modes on these two time scales have different tropical structures: a west-east seesaw in the tropical Pacific on the multidecadal time scale and a dipole between the western and central tropical Pacific on the quasi-decadal time scale. These two sea level modes in the Pacific basin are closely related to the ENSO-like low-frequency climate variability on respective time scales but feature distinct surface wind forcing patterns and subbasin climate processes. The multidecadal sea level mode is associated with the Pacific decadal oscillation (PDO) and Aleutian low variations in the North Pacific and tropical Pacific sea surface temperature anomalies toward the eastern basin, while the quasi-decadal sea level mode is accompanied by tropical Pacific sea surface temperature anomalies centered in the central basin along with the North Pacific part, which resembles the North Pacific Oscillation (NPO) and its oceanic expressions [i.e., the North Pacific Gyre Oscillation (NPGO) and the Victoria mode]. The authors further conclude that the ENSO-like low-frequency variability, which has dominant influences on the Pacific sea level and climate, comprises at least two distinct modes with different spatial structures on quasi-decadal and multidecadal time scales, respectively. |
abstract_unstemmed |
Low-frequency sea level variations with periods longer than interannual time scales have been receiving much attention recently, with the aim of distinguishing the anthropogenic regional sea level change signal from the natural fluctuations. Based on the available sea level products, this study finds that the dominant low-frequency sea level mode in the Pacific basin has both quasi-decadal variations and a multidecadal trend reversal in the early 1990s. The dominant sea level modes on these two time scales have different tropical structures: a west-east seesaw in the tropical Pacific on the multidecadal time scale and a dipole between the western and central tropical Pacific on the quasi-decadal time scale. These two sea level modes in the Pacific basin are closely related to the ENSO-like low-frequency climate variability on respective time scales but feature distinct surface wind forcing patterns and subbasin climate processes. The multidecadal sea level mode is associated with the Pacific decadal oscillation (PDO) and Aleutian low variations in the North Pacific and tropical Pacific sea surface temperature anomalies toward the eastern basin, while the quasi-decadal sea level mode is accompanied by tropical Pacific sea surface temperature anomalies centered in the central basin along with the North Pacific part, which resembles the North Pacific Oscillation (NPO) and its oceanic expressions [i.e., the North Pacific Gyre Oscillation (NPGO) and the Victoria mode]. The authors further conclude that the ENSO-like low-frequency variability, which has dominant influences on the Pacific sea level and climate, comprises at least two distinct modes with different spatial structures on quasi-decadal and multidecadal time scales, respectively. |
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title_short |
Distinguishing the Quasi-Decadal and Multidecadal Sea Level and Climate Variations in the Pacific: Implications for the ENSO-Like Low-Frequency Variability |
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Based on the available sea level products, this study finds that the dominant low-frequency sea level mode in the Pacific basin has both quasi-decadal variations and a multidecadal trend reversal in the early 1990s. The dominant sea level modes on these two time scales have different tropical structures: a west-east seesaw in the tropical Pacific on the multidecadal time scale and a dipole between the western and central tropical Pacific on the quasi-decadal time scale. These two sea level modes in the Pacific basin are closely related to the ENSO-like low-frequency climate variability on respective time scales but feature distinct surface wind forcing patterns and subbasin climate processes. The multidecadal sea level mode is associated with the Pacific decadal oscillation (PDO) and Aleutian low variations in the North Pacific and tropical Pacific sea surface temperature anomalies toward the eastern basin, while the quasi-decadal sea level mode is accompanied by tropical Pacific sea surface temperature anomalies centered in the central basin along with the North Pacific part, which resembles the North Pacific Oscillation (NPO) and its oceanic expressions [i.e., the North Pacific Gyre Oscillation (NPGO) and the Victoria mode]. The authors further conclude that the ENSO-like low-frequency variability, which has dominant influences on the Pacific sea level and climate, comprises at least two distinct modes with different spatial structures on quasi-decadal and multidecadal time scales, respectively.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Surface temperatures</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Sea surface</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Variability</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Surface wind</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Sea level</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">North Pacific Oscillation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Decadal variations</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Environmental science</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Climate change</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Sea level variations</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Anthropogenic factors</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Atmosphere</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Sea surface temperature anomalies</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Time</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">El Nino</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Aleutian low</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Frequency</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Modes</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Sea surface temperatures</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">El Nino phenomena</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Temperature effects</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Level (quantity)</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Laboratories</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Climate</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Studies</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Earth science</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Structures</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Pacific Decadal Oscillation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Surface temperature</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Southern Oscillation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Long-term changes</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Human influences</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Tropical environment</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">El Nino-Southern Oscillation event</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Anomalies</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Temperature anomalies</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Loads (forces)</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Sea surface temperature</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Fluctuations</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Spatial discrimination</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Sea level changes</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Xuebin Zhang</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">John A Church</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Jianyu Hu</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Jin-Yi Yu</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Journal of climate</subfield><subfield code="d">Boston, Mass. 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