Advances in Statistical Climatology, Meteorology and Oceanography
Advances in Statistical Climatology, Meteorology and Oceanography
ASCMO
Articles | Volume 12, issue 1
Articles | Volume 12, issue 1
https://doi.org/10.5194/ascmo-12-73-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ascmo-12-73-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 12, issue 1
23 Mar 2026
 | 23 Mar 2026

Comparing climate time series – Part 6: Testing equality of autoregressive parameters without assuming equality of noise variances

Timothy DelSole and Michael K. Tippett

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Short summary
We derived a new statistical test that can compare climate models and observations more broadly than before, while allowing for both natural fluctuations and human influences. Tests on global temperature data show that most climate models differ from observations in important ways.
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