Tropical-North Pacific Climate Linkages over the Past Four Centuries*
ABSTRACT Analyses of instrumental data demonstrate robust linkages between decadal-scale North Pacific and tropical Indo-Pacific climatic variability. These linkages encompass common regime shifts, including the noteworthy 1976 transition in Pacific climate. However, information on Pacific decadal v...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1046.9155 2023-05-15T13:15:03+02:00 Tropical-North Pacific Climate Linkages over the Past Four Centuries* Rosanne D ' Arrigo Rob Wilson Clara Deser Gregory Wiles Edward Cook Ricardo Villalba Alexander Tudhope Julia Cole And Braddock Linsley ## The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1046.9155 http://www.atmos.albany.edu/geology/webpages/DArrigo_et_al_2005.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1046.9155 http://www.atmos.albany.edu/geology/webpages/DArrigo_et_al_2005.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.atmos.albany.edu/geology/webpages/DArrigo_et_al_2005.pdf text ftciteseerx 2020-04-05T00:20:27Z ABSTRACT Analyses of instrumental data demonstrate robust linkages between decadal-scale North Pacific and tropical Indo-Pacific climatic variability. These linkages encompass common regime shifts, including the noteworthy 1976 transition in Pacific climate. However, information on Pacific decadal variability and the tropical high-latitude climate connection is limited prior to the twentieth century. Herein tree-ring analysis is employed to extend the understanding of North Pacific climatic variability and related tropical linkages over the past four centuries. To this end, a tree-ring reconstruction of the December-May North Pacific index (NPI)-an index of the atmospheric circulation related to the Aleutian low pressure cell-is presented (1600-1983). The NPI reconstruction shows evidence for the three regime shifts seen in the instrumental NPI data, and for seven events in prior centuries. It correlates significantly with both instrumental tropical climate indices and a coral-based reconstruction of an optimal tropical Indo-Pacific climate index, supporting evidence for a tropical-North Pacific link extending as far west as the western Indian Ocean. The coral-based reconstruction shows the twentieth-century regime shifts evident in the instrumental NPI and instrumental tropical Indo-Pacific climate index, and three previous shifts. Changes in the strength of correlation between the reconstructions over time, and the different identified shifts in both series prior to the twentieth century, suggest a varying tropical influence on North Pacific climate, with greater influence in the twentieth century. One likely mechanism is the low-frequency variability of the El Niño-Southern Oscillation (ENSO) and its varying impact on Indo-Pacific climate. Text aleutian low Unknown Indian Pacific |
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ABSTRACT Analyses of instrumental data demonstrate robust linkages between decadal-scale North Pacific and tropical Indo-Pacific climatic variability. These linkages encompass common regime shifts, including the noteworthy 1976 transition in Pacific climate. However, information on Pacific decadal variability and the tropical high-latitude climate connection is limited prior to the twentieth century. Herein tree-ring analysis is employed to extend the understanding of North Pacific climatic variability and related tropical linkages over the past four centuries. To this end, a tree-ring reconstruction of the December-May North Pacific index (NPI)-an index of the atmospheric circulation related to the Aleutian low pressure cell-is presented (1600-1983). The NPI reconstruction shows evidence for the three regime shifts seen in the instrumental NPI data, and for seven events in prior centuries. It correlates significantly with both instrumental tropical climate indices and a coral-based reconstruction of an optimal tropical Indo-Pacific climate index, supporting evidence for a tropical-North Pacific link extending as far west as the western Indian Ocean. The coral-based reconstruction shows the twentieth-century regime shifts evident in the instrumental NPI and instrumental tropical Indo-Pacific climate index, and three previous shifts. Changes in the strength of correlation between the reconstructions over time, and the different identified shifts in both series prior to the twentieth century, suggest a varying tropical influence on North Pacific climate, with greater influence in the twentieth century. One likely mechanism is the low-frequency variability of the El Niño-Southern Oscillation (ENSO) and its varying impact on Indo-Pacific climate. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Rosanne D ' Arrigo Rob Wilson Clara Deser Gregory Wiles Edward Cook Ricardo Villalba Alexander Tudhope Julia Cole And Braddock Linsley ## |
spellingShingle |
Rosanne D ' Arrigo Rob Wilson Clara Deser Gregory Wiles Edward Cook Ricardo Villalba Alexander Tudhope Julia Cole And Braddock Linsley ## Tropical-North Pacific Climate Linkages over the Past Four Centuries* |
author_facet |
Rosanne D ' Arrigo Rob Wilson Clara Deser Gregory Wiles Edward Cook Ricardo Villalba Alexander Tudhope Julia Cole And Braddock Linsley ## |
author_sort |
Rosanne D ' Arrigo |
title |
Tropical-North Pacific Climate Linkages over the Past Four Centuries* |
title_short |
Tropical-North Pacific Climate Linkages over the Past Four Centuries* |
title_full |
Tropical-North Pacific Climate Linkages over the Past Four Centuries* |
title_fullStr |
Tropical-North Pacific Climate Linkages over the Past Four Centuries* |
title_full_unstemmed |
Tropical-North Pacific Climate Linkages over the Past Four Centuries* |
title_sort |
tropical-north pacific climate linkages over the past four centuries* |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1046.9155 http://www.atmos.albany.edu/geology/webpages/DArrigo_et_al_2005.pdf |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
aleutian low |
genre_facet |
aleutian low |
op_source |
http://www.atmos.albany.edu/geology/webpages/DArrigo_et_al_2005.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1046.9155 http://www.atmos.albany.edu/geology/webpages/DArrigo_et_al_2005.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766266734821507072 |