Tag Archives: pollen

Pollen from the garden of forking paths

Posted on 04/08/2018 by richard telford

Most transfer functions for reconstructing past environmental changes are based on a calibration-in-space approach, with a modern calibration set of paired microfossil assemblages and environmental data. The alternative approach is calibration-in-time, with well-dated fossil assemblages and contemporaneous environmental data. I’ve … Continue reading →

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All the pollen

Posted on 22/07/2017 by richard telford

“And some things that should not have been forgotten were lost. History became legend. Legend became myth. And for two and a half thousand years, the metadata passed out of all knowledge.” A couple of months ago, Eric Grimm gave … Continue reading →

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Chironomid vs pollen: Holocene climate change in southern Europe

Posted on 20/03/2017 by richard telford

Pollen-inferred summer temperature reconstructions from southern Europe show cool early-Holocene summers and warmer late-Holocene summers (Davis et al 2003, Mauri et al 2015). In contrast,  warm early-Holocene summers are reconstructed elsewhere in Europe and most of the mid-high latitude Northern … Continue reading →

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In eight-dimensional space, no one can hear your data scream

Posted on 22/03/2015 by richard telford

Mauri et al (2015) make a gridded climate reconstruction for Europe over the Holocene based on almost 900 pollen stratigraphies. The hope is that the reconstruction will be useful for evaluating climate models. This is a useful goal – if the climate models … Continue reading →

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Was China 6-8 K warmer in winter 6000 years ago?

Posted on 18/01/2015 by richard telford

Monckton, Soon, Legates & Briggs have published a paper in the Science Bulletin (formerly Chinese Science Bulletin), which, despite having an impact factor of 1.365, is “one of the world’s top six learned journals of science”. Allegedly. In their paper, … Continue reading →

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New Paper: Tundra and Taiga Transfer Function – Klemm et al 2013

Posted on 16/07/2013 by richard telford

One of the things I did while on sabbatical at AWI in Potsdam in 2012 was to collaborate with Ulrike Herzschuh’s research group, applying the methods I had developed for testing the impact of spatial autocorrelation on transfer functions (Telford and Birks, 2009) and the … Continue reading →

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