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AGU: Geophysical Research Letters

 

Keywords

  • decadal variability
  • climate variability
  • surface temperature

Index Terms

  • Global Change: Climate variability
  • Global Change: Solar variability
  • Mathematical Geophysics: Time series analysis
  • Mathematical Geophysics: Spatial analysis
  • Atmospheric Processes: Climate change and variability

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 34, L14703, 5 PP., 2007
doi:10.1029/2007GL030207

Surface warming by the solar cycle as revealed by the composite mean difference projection

Charles D. Camp

Department of Applied Mathematics, University of Washington, Seattle, Washington, USA

Ka Kit Tung

Department of Applied Mathematics, University of Washington, Seattle, Washington, USA

By projecting surface temperature data (1959–2004) onto the spatial structure obtained objectively from the composite mean difference between solar max and solar min years, we obtain a global warming signal of almost 0.2°K attributable to the 11-year solar cycle. The statistical significance of such a globally coherent solar response at the surface is established for the first time.

Received 29 March 2007; accepted 14 June 2007; published 18 July 2007.

Citation: Camp, C. D., and K. K. Tung (2007), Surface warming by the solar cycle as revealed by the composite mean difference projection, Geophys. Res. Lett., 34, L14703, doi:10.1029/2007GL030207.

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