Comparing historical and modern methods of sea surface temperature measurement – Part 1: Review of methods, field comparisons and dataset adjustments.
Abstract
Sea surface temperature (SST) has been obtained
from a variety of different platforms, instruments and depths
over the past 150 yr. Modern-day platforms include ships,
moored and drifting buoys and satellites. Shipboard methods include temperature measurement of seawater sampled
by bucket and flowing through engine cooling water intakes.
Here I review SST measurement methods, studies
analysing shipboard methods by field or lab experiment and
adjustments applied to historical SST datasets to account for
variable methods. In general, bucket temperatures have been
found to average a few tenths of a ◦C cooler than simultaneous engine intake temperatures. Field and lab experiments demonstrate that cooling of bucket samples prior to
measurement provides a plausible explanation for negative
average bucket-intake differences. These can also be credibly attributed to systematic errors in intake temperatures,
which have been found to average overly-warm by >0.5 ◦C
on some vessels. H.....
Journal
Ocean ScienceVolume
9Page Range
pp.683–694Document Language
enEssential Ocean Variables (EOV)
Sea surface temperatureBest Practice Type
GuideDOI Original
10.5194/os-9-683-2013Citation
Matthews, J. B. R. (2013) Comparing historical and modern methods of sea surface temperature measurement – Part 1: Review of methods, field comparisons and dataset adjustments. Ocean Science, 9, pp.683–694. DOI: :10.5194/os-9-683-2013Collections
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