Author Archives: richard telford

About richard telford

Ecologist with interests in quantitative methods and palaeoenvironments

Critical perspectives in climate reconstructions from pollen

This week I am at Caux, high above Lac Léman, Switzerland, attending a Pollen Climate Model Intercomparison Project workshop. The invited talk I gave this morning talk was on   Critical_Issues_in_pollen_climate_reconstructions. (I’ve made the ioslides presentation into a pdf – … Continue reading

Posted in Uncategorized | Leave a comment

“Fossil Insect Study Suggests That Los Angeles Climate Has Been Relatively Stable for at Least 50,000 Years”

So sayeth the press release. But what about the paper, and the 182 beetles sampled from La Brea tar pits? Fossil preservation in the tar pits is exceptional, but the constant stream of gas through the tar deposits mixes the … Continue reading

Posted in climate, Peer reviewed literature | Tagged , | Leave a comment

Are Tibetan chironomids mesmerised by solar variability?

It’s been a while since I examined a paper that purports to present palaeoecological evidence for a climate response to solar variability. But last night, flicking through the recently published papers in Quaternary Science Reviews, I came across Zhang et … Continue reading

Posted in Peer reviewed literature, solar variability, transfer function | Tagged , | Leave a comment

Downloading Polish weather data

I needed some temperature data from Poland for some work I am doing on the pheonology of understorey plants in Białowieża Forest. The easy source of data is the GHCN which can be accessed through the rnoaa package. This code … Continue reading

Posted in Uncategorized | Tagged , | Leave a comment

Chironomid vs pollen: Holocene climate change in southern Europe

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

Posted in Peer reviewed literature, transfer function | Tagged , , , , , | Leave a comment

Resilience workshop in Finse: deadline soon

At the end of March, there is a workshop on Measuring Components of Resilience in Long-term Ecological Datasets The workshop is at Finse, high in the mountains between Bergen and Oslo. Along with debate about how ecosystem resilience can estimated … Continue reading

Posted in Uncategorized | Tagged | Leave a comment

2016 in numbers

Highest temperature: 120 °C At least that is what the (possibly broken) thermometer in the wood-fired sauna near Tallinn read when I was taken there and beaten with a viht by PhD students Annika and Agata. After a quick plunge … Continue reading

Posted in Uncategorized | Tagged , , , | Leave a comment