The average influence of decadal solar forcing on the atmosphere in the South Pacific region

@article{vanLoon2011TheAI,
  title={The average influence of decadal solar forcing on the atmosphere in the South Pacific region},
  author={Harry van Loon and Gerald A. Meehl},
  journal={Geophysical Research Letters},
  year={2011},
  volume={38}
}
Composite mean difference analyses are applied to historical sea level pressure (SLP) and sea surface temperature (SST) data to investigate the spatial dependence of the Pacific climate system response to 11‐year solar forcing. Previous work has found that the SST and SLP responses are most clearly detected near the times of sunspot maxima, which occur as much as two years prior to the centers of the broad decadal solar cycle maxima. In January–February, the SLP response at sunspot maximum is… 

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References

SHOWING 1-10 OF 18 REFERENCES

A Coupled Air–Sea Response Mechanism to Solar Forcing in the Pacific Region

The 11-yr solar cycle [decadal solar oscillation (DSO)] at its peaks strengthens the climatological precipitation maxima in the tropical Pacific during northern winter. Results from two global

Solar cycle signals in sea level pressure and sea surface temperature

Abstract. We identify solar cycle signals in 155 years of global sea level pressure (SLP) and sea surface temperature (SST) data using a multiple linear regression approach. In SLP we find in the

Coupled air-sea response to solar forcing in the Pacific region during northern winter

[1] Observations since the middle of the 19th century show that the decadal solar oscillation at its peaks strengthens the major convergence zones in the tropical Pacific (Intertropical Convergence

Solar Cycles in 150 Years of Global Sea Surface Temperature Data

The purpose of the present work is to demonstrate that a solar cycle response exists in surface temperature using the longest global dataset available, which is in the form of 1854‐2007 sea surface

A Lagged Warm Event–Like Response to Peaks in Solar Forcing in the Pacific Region

Abstract The forced response coincident with peaks in the 11-yr decadal solar oscillation (DSO) has been shown to resemble a cold event or La Nina–like pattern during December–February (DJF) in the

Amplifying the Pacific Climate System Response to a Small 11-Year Solar Cycle Forcing

Two mechanisms, the top-down stratospheric response of ozone to fluctuations of shortwave solar forcing and the bottom-up coupled ocean-atmosphere surface response, are included in versions of three global climate models, with either mechanism acting alone or both acting together.

Sunspot activity and oceanic conditions in the northern north Pacific Ocean

During periods of sunspot maxima (approximately every 11 years) the mean winter position of the center of the Aleutian Low pressure system shifts from the Gulf of Alaska to the western Aleutian

Response of global upper ocean temperature to changing solar irradiance

By focusing on time sequences of basin-average and global-average upper ocean temperature (i.e., from 40oS to 60oN) we find temperatures responding to changing solar irradiance in three separate

The Pacific’s Response to Surface Heating in 130 Yr of SST: La Niña–like or El Niño–like?

Abstract Using a modified method of multiple linear regression on instrumented sea surface temperature (SST) in the two longest historical datasets [the Extended Reconstructed SST dataset (ERSST) and