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Climate and Dynamics
Cointegration analysis of hemispheric temperature relations
Article first published online: 23 JAN 2002
DOI: 10.1029/2000JD000174
Copyright 2002 by the American Geophysical Union.
Issue
2169-8996/asset/cover.gif?v=1&s=eb26df77c6489aae7beb4facebed6f1946f71ff8 "Journal of Geophysical Research: Atmospheres (1984–2012)")
Journal of Geophysical Research: Atmospheres (1984–2012)
Volume 107, Issue D2, pages ACL 8-1–ACL 8-10, 30 January 2002
Additional Information
How to Cite
, and , Cointegration analysis of hemispheric temperature relations, J. Geophys. Res., 107(D2), doi:10.1029/2000JD000174, 2002.
Publication History
- Issue published online: 23 JAN 2002
- Article first published online: 23 JAN 2002
- Manuscript Accepted: 15 AUG 2001
- Manuscript Revised: 9 AUG 2001
- Manuscript Received: 17 NOV 2000
- Abstract
- Article
- References
- Cited By
Keywords:
- atmosphere;
- radiative forcing;
- greenhouse gases;
- solar irradiance;
- temparature;
- sulfur emission
[1] We use cointegration procedures that are designed to estimate and test relations among integrated time series to develop a model of the relation between surface temperature and the radiative forcing of solar irradiance, greenhouse gases, and tropospheric sulfates. We use this model to test some basic hypotheses regarding the relation between surface temperature and radiative forcing. We find that there is a statistically meaningful relation between surface temperature and changes in the radiative forcing associated with natural variability and human activity. We also find that hemispheric temperatures cannot be explained by hemispheric forcings alone: Hemispheric temperatures are linked. Differences in hemispheric temperatures are associated with differences in the hemispheric temperature effects of greenhouse gases, anthropogenic sulfur emissions, and solar irradiance. Estimates for the temperature sensitivity (ΔT2x) are consistent with the middle and lower range of values estimated by physically based models.