Tag Archives: spatial autocorrelation

Autocorrelation in the testate amoeba calibration set

Posted on 10/12/2018 by richard telford

Amesbury et al examine the autocorrelation in their huge calibration set. I thought I would do the same, increasing the resolution of the analysis to get a better handle on what is going on. This is an RNE plot. It … Continue reading →

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There is a memory in the dirt at the bottom of the sea

Posted on 10/07/2017 by richard telford

There is a memory in the dirt at the bottom of the sea. It is in the number of different sorts of small dead animals which we can use to find out how warm or cold the sea was in … Continue reading →

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Independent adventures in uncertainty: sea-ice reconstructions

Posted on 18/08/2013 by richard telford

One of the assumptions of transfer functions is that the calibration set observations are independent. If they are not independent of each other, for example because of spatial autocorrelation, the transfer function performance statistics will be biased, appearing to be … Continue reading →

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Dinocysts and autocorrelation: Guiot and de Vernal (2011) line by line

Posted on 13/08/2013 by richard telford

I didn’t intend to write about Guiot and de Vernal (2011) as I have already published a comment on this paper, but new papers on Arctic sea-ice reconstructions are dismissing my work on transfer functions and citing Guiot and de Vernal (2011) as … Continue reading →

Posted in climate, Peer reviewed literature, transfer function | Tagged , , , , | 2 Comments