Articles | Volume 12, issue 1
https://doi.org/10.5194/ascmo-12-73-2026
https://doi.org/10.5194/ascmo-12-73-2026
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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