Tag Archives: sea ice reconstruction

Diatoms, sea-ice and temperature

Diatoms make good proxies for palaeoenvironmental reconstructions: their exquisite silica cell walls can be identified to species level (mostly); they preserve well in sediments (usually) and they are sensitive to multiple environmental variables. Being sensitive to multiple environmental variables is … Continue reading

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Uneven adventures in uncertainty: sea-ice reconstructions

The dinocyst calibration set has an extremely uneven distribution of sites along the sea-ice gradient. In the 1171-observation calibration set (the latest 1492-observation calibration set is not yet online), just over half the sites have zero sea-ice, so the remainder of the … Continue reading

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