AGR	radar picket ship
ARGO	Array for Real-Time Geostrophic Oceanography
ASCII	American Standard Code for Information Interchange
BT	bathythermograph
CI	confidence interval
CRN	Climate Research Network
CRS	cotton region shelter
CTD	conductivity–temperature–depth
DER	destroyer escort
FWHM	full width at half maximum
GHCN	Global Historical Climatology Network
GISSTemp	Goddard Institute of Space Studies anomaly record
GSATA	global surface air-temperature anomaly
HadCRUT	UK Met Hadley Centre and University of East Anglia Climate Research Unit anomaly record.
ICOADS	International Comprehensive Ocean–Atmosphere Data Set
IPCC	Intergovernmental Panel on Climate Change
keV	kilo electron-Volt
KNMI	Koninklijk Nederlands Meteorologisch Instituut
LiG	liquid-in-glass
MAE	mixed alkali effect
MMTS	min–max temperature system
MSTS	Military Ship Transport Service
NBS	National Bureau of Standards
NCAR	National Center for Atmospheric Research
NIST	National Institute of Standards and Technology
NMAH	National Museum of American History
PRT	platinum resistance thermometer
PVC	polyvinyl chloride
RMS	root–mean–square
SEA	Sea Education Association
SST	sea-surface temperature
STD	salinity–temperature–depth
USHCN	United States Historical Climatology Network
VOS	voluntary observing ships
WMO	World Meteorological Organization
XRF	X-ray fluorescence