Category Archives: Palaeohydrology

Significance testing testate amoeba water table reconstructions

Testate amoeba live in bogs, their shell or test is preserved in the peat after death. Some species seem to prefer drier conditions, others prefer wetter conditions. And thus we have the prerequisites for constructing a transfer function to reconstruct … Continue reading

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You don’t have to explain everything

So many papers present interesting palaeo-data and then add a badly done analysis that attempts to prove that the palaeo-data correlate (if you squint hard enough) with the Carriaco Basin record, NGRIP or the solar insolation reconstruction. This is not … Continue reading

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On the niche of Thalassiosira faurii, perils in palaeoecology

Palaeoenvironmental conditions can be reconstructed from microfossils preserved in sediments using the relationship between species and the environment. Usually the species’ relationships with the environment — their niches — are insufficiently constrained by experimental data, so we are forced to rely upon observations of … Continue reading

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Mayfly mandibles: as seen in the IPCC report

I have been reading through the palaeoclimate chapter in the new IPCC report, in part so I can write a post on transfer functions in the report for Victor Venema’s climate scientists’ reviews. This post is not that review, instead I want … Continue reading

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Hydrological modelling of a small lake – implications for palaeohydrology

Palaeohydrological studies on closed-lakes (lakes without an outflowing river) make a lot of sense. I did my PhD on this type of system in Ethiopia. When the precipitation/evaporation ratio is high, lake level is high and salinity is low, and … Continue reading

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The Water Lilies – Setting Sun: Review of Stolze et al (2013)

This is part of my critical review of the palaeoenvironmental evidence for the influence of solar activity on climate. Stolze, S., Muscheler, R., Dörfler, W., Nelle, O. (2013) Solar influence on climate variability and human development during the Neolithic: evidence from a … Continue reading

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