Oceanic and atmospheric transport of multiyear El Niño–Southern Oscillation (ENSO) signatures to the polar regions

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Oceanic and atmospheric transport of multiyear El Niño–Southern Oscillation (ENSO) signatures to the polar regions. / Jevrejeva, S; Moore, J C; Grinsted, Aslak.

In: Geophysical Research Letters, Vol. 31, No. L24210, 2004.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Jevrejeva, S, Moore, JC & Grinsted, A 2004, 'Oceanic and atmospheric transport of multiyear El Niño–Southern Oscillation (ENSO) signatures to the polar regions', Geophysical Research Letters, vol. 31, no. L24210.

APA

Jevrejeva, S., Moore, J. C., & Grinsted, A. (2004). Oceanic and atmospheric transport of multiyear El Niño–Southern Oscillation (ENSO) signatures to the polar regions. Geophysical Research Letters, 31(L24210).

Vancouver

Jevrejeva S, Moore JC, Grinsted A. Oceanic and atmospheric transport of multiyear El Niño–Southern Oscillation (ENSO) signatures to the polar regions. Geophysical Research Letters. 2004;31(L24210).

Author

Jevrejeva, S ; Moore, J C ; Grinsted, Aslak. / Oceanic and atmospheric transport of multiyear El Niño–Southern Oscillation (ENSO) signatures to the polar regions. In: Geophysical Research Letters. 2004 ; Vol. 31, No. L24210.

Bibtex

@article{bddcda20e62c11ddbf70000ea68e967b,
title = "Oceanic and atmospheric transport of multiyear El Ni{\~n}o–Southern Oscillation (ENSO) signatures to the polar regions",
abstract = "Using Monte-Carlo Singular Spectrum Analysis (MC- SSA) and Wavelet Transform (WT) we separate statistically significant components from time series and demonstrate significant co-variance and consistent phase differences between ice conditions and the Arctic Oscillation and Southern Oscillation indices (AO and SOI) at 2.2, 3.5, 5.7 and 13.9 year periods. The 2.2, 3.5 and 5.7 year signals detected in the Arctic are generated about three months earlier in the tropical Pacific Ocean. In contrast, we show that the 13.9 year signal propagates eastward from the western Pacific as equatorial coupled waves (ECW, 0.13–0.15 ms-1), and then as fast boundary waves (1–3 ms-1) along the western margins of the Americas, with a phase difference of about 1.8–2.1 years by the time they reach the Arctic. Our results provide evidence of dynamical connections between high latitude surface conditions, tropical ocean sea surface temperatures mediated by tropical wave propagation, the wintertime polar vortex and the AO.",
author = "S Jevrejeva and Moore, {J C} and Aslak Grinsted",
note = "Paper id:: 10.1029/2004GL020871",
year = "2004",
language = "English",
volume = "31",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "Wiley-Blackwell",
number = "L24210",

}

RIS

TY - JOUR

T1 - Oceanic and atmospheric transport of multiyear El Niño–Southern Oscillation (ENSO) signatures to the polar regions

AU - Jevrejeva, S

AU - Moore, J C

AU - Grinsted, Aslak

N1 - Paper id:: 10.1029/2004GL020871

PY - 2004

Y1 - 2004

N2 - Using Monte-Carlo Singular Spectrum Analysis (MC- SSA) and Wavelet Transform (WT) we separate statistically significant components from time series and demonstrate significant co-variance and consistent phase differences between ice conditions and the Arctic Oscillation and Southern Oscillation indices (AO and SOI) at 2.2, 3.5, 5.7 and 13.9 year periods. The 2.2, 3.5 and 5.7 year signals detected in the Arctic are generated about three months earlier in the tropical Pacific Ocean. In contrast, we show that the 13.9 year signal propagates eastward from the western Pacific as equatorial coupled waves (ECW, 0.13–0.15 ms-1), and then as fast boundary waves (1–3 ms-1) along the western margins of the Americas, with a phase difference of about 1.8–2.1 years by the time they reach the Arctic. Our results provide evidence of dynamical connections between high latitude surface conditions, tropical ocean sea surface temperatures mediated by tropical wave propagation, the wintertime polar vortex and the AO.

AB - Using Monte-Carlo Singular Spectrum Analysis (MC- SSA) and Wavelet Transform (WT) we separate statistically significant components from time series and demonstrate significant co-variance and consistent phase differences between ice conditions and the Arctic Oscillation and Southern Oscillation indices (AO and SOI) at 2.2, 3.5, 5.7 and 13.9 year periods. The 2.2, 3.5 and 5.7 year signals detected in the Arctic are generated about three months earlier in the tropical Pacific Ocean. In contrast, we show that the 13.9 year signal propagates eastward from the western Pacific as equatorial coupled waves (ECW, 0.13–0.15 ms-1), and then as fast boundary waves (1–3 ms-1) along the western margins of the Americas, with a phase difference of about 1.8–2.1 years by the time they reach the Arctic. Our results provide evidence of dynamical connections between high latitude surface conditions, tropical ocean sea surface temperatures mediated by tropical wave propagation, the wintertime polar vortex and the AO.

M3 - Journal article

VL - 31

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - L24210

ER -

ID: 9832672