Variable Intensity of Teleconnections during the Late Holocene in Subtropical North America from an Isotopic Study of Speleothem from Florida

Philip E. van Beynen; Yemane Asmerom; Victor J. Polyak; Limaris R. Soto; Jason S. Polk; Philip Van Beynen

doi:10.1029/2007GL031046

Variable Intensity of Teleconnections during the Late Holocene in Subtropical North America from an Isotopic Study of Speleothem from Florida

Philip E. van Beynen, Yemane Asmerom, Victor J. Polyak, Limaris R. Soto, Jason S. Polk, Philip Van Beynen

University of South Florida

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

Abstract

<p> The persistence and influence of both tropical and extra&hyphen;tropical teleconnections on the hydrology of subtropical North America are little understood. Major atmospheric&hyphen;oceanic controls on the isotopic composition of the precipitation reconstructed from a 1,000 year old stalagmite are the North Atlantic Oscillation (NAO) and the Pacific Decadal Oscillation (PDO). These teleconnections create decadal&hyphen; to centennial&hyphen;scale changes in the seasonal distribution of precipitation. An increase in the winter proportion of annual precipitation coincides with negative phase NAO conditions and a positive phase PDO. However, the PDO's influence appears to be weakened when it is out of phase with the El Niño Southern Oscillation (ENSO). The NAO exerts the greater decadal influence on this regions climate than the El Niño Southern Oscillation (ENSO), suggesting a greater significance of high latitude controls on subtropical North America.</p>

Original language	American English
Journal	Geophysical Research Letters
Volume	34
DOIs	https://doi.org/10.1029/2007GL031046
State	Published - Sep 1 2007

Keywords

climate change
teleconnections
Florida

Disciplines

Earth Sciences

Access to Document

10.1029/2007GL031046License: CC BY

Variable Intensity of Teleconnections during the Late Holocene inFinal published version, 608 KBLicense: CC BY

Cite this

@article{b77d56635f1f40d4858b1c1009bf0cc5,

title = "Variable Intensity of Teleconnections during the Late Holocene in Subtropical North America from an Isotopic Study of Speleothem from Florida",

abstract = " The persistence and influence of both tropical and extra&hyphen;tropical teleconnections on the hydrology of subtropical North America are little understood. Major atmospheric&hyphen;oceanic controls on the isotopic composition of the precipitation reconstructed from a 1,000 year old stalagmite are the North Atlantic Oscillation (NAO) and the Pacific Decadal Oscillation (PDO). These teleconnections create decadal&hyphen; to centennial&hyphen;scale changes in the seasonal distribution of precipitation. An increase in the winter proportion of annual precipitation coincides with negative phase NAO conditions and a positive phase PDO. However, the PDO's influence appears to be weakened when it is out of phase with the El Niño Southern Oscillation (ENSO). The NAO exerts the greater decadal influence on this regions climate than the El Niño Southern Oscillation (ENSO), suggesting a greater significance of high latitude controls on subtropical North America.",

keywords = "climate change, teleconnections, Florida",

author = "{van Beynen}, {Philip E.} and Yemane Asmerom and Polyak, {Victor J.} and Soto, {Limaris R.} and Polk, {Jason S.} and {Van Beynen}, Philip",

year = "2007",

month = sep,

day = "1",

doi = "10.1029/2007GL031046",

language = "American English",

volume = "34",

journal = "Geophysical Research Letters",

}

TY - JOUR

T1 - Variable Intensity of Teleconnections during the Late Holocene in Subtropical North America from an Isotopic Study of Speleothem from Florida

AU - van Beynen, Philip E.

AU - Asmerom, Yemane

AU - Polyak, Victor J.

AU - Soto, Limaris R.

AU - Polk, Jason S.

AU - Van Beynen, Philip

PY - 2007/9/1

Y1 - 2007/9/1

N2 - The persistence and influence of both tropical and extra&hyphen;tropical teleconnections on the hydrology of subtropical North America are little understood. Major atmospheric&hyphen;oceanic controls on the isotopic composition of the precipitation reconstructed from a 1,000 year old stalagmite are the North Atlantic Oscillation (NAO) and the Pacific Decadal Oscillation (PDO). These teleconnections create decadal&hyphen; to centennial&hyphen;scale changes in the seasonal distribution of precipitation. An increase in the winter proportion of annual precipitation coincides with negative phase NAO conditions and a positive phase PDO. However, the PDO's influence appears to be weakened when it is out of phase with the El Niño Southern Oscillation (ENSO). The NAO exerts the greater decadal influence on this regions climate than the El Niño Southern Oscillation (ENSO), suggesting a greater significance of high latitude controls on subtropical North America.

AB - The persistence and influence of both tropical and extra&hyphen;tropical teleconnections on the hydrology of subtropical North America are little understood. Major atmospheric&hyphen;oceanic controls on the isotopic composition of the precipitation reconstructed from a 1,000 year old stalagmite are the North Atlantic Oscillation (NAO) and the Pacific Decadal Oscillation (PDO). These teleconnections create decadal&hyphen; to centennial&hyphen;scale changes in the seasonal distribution of precipitation. An increase in the winter proportion of annual precipitation coincides with negative phase NAO conditions and a positive phase PDO. However, the PDO's influence appears to be weakened when it is out of phase with the El Niño Southern Oscillation (ENSO). The NAO exerts the greater decadal influence on this regions climate than the El Niño Southern Oscillation (ENSO), suggesting a greater significance of high latitude controls on subtropical North America.

KW - climate change

KW - teleconnections

KW - Florida

UR - https://digitalcommons.usf.edu/geo_facpub/2073

U2 - 10.1029/2007GL031046

DO - 10.1029/2007GL031046

M3 - Article

VL - 34

JO - Geophysical Research Letters

JF - Geophysical Research Letters

ER -

Variable Intensity of Teleconnections during the Late Holocene in Subtropical North America from an Isotopic Study of Speleothem from Florida

Abstract

Keywords

Disciplines

Access to Document

Other files and links

Cite this