Historical Ocean Surface Temperatures: Adjustment, Characterisation and Evaluation (HOSTACE)

The project ended in 2019; its project.noc.ac.uk/hostace website is no longer available.

The surface temperature of the land and sea is the main measure of “global warming”. Measurements of sea surface temperature (SST) have been made for more than 200 years, first on sailing ships, now on a mixture of ships and buoys (drifting and moored). Technology has changed dramatically over this period, raising serious questions about whether technology changes over time give a misleading impression of how the temperature has changed – and therefore how climate has changed.

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