Abstract
A climate data record of global sea surface temperature (SST) spanning 1981–2016 has been developed from 4 × 1012 satellite measurements of thermal infra-red radiance. The spatial area represented by pixel SST estimates is between 1 km2 and 45 km2. The mean density of good-quality observations is 13 km−2 yr−1. SST uncertainty is evaluated per datum, the median uncertainty for pixel SSTs being 0.18 K. Multi-annual observational stability relative to drifting buoy measurements is within 0.003 K yr−1 of zero with high confidence, despite maximal independence from in situ SSTs over the latter two decades of the record. Data are provided at native resolution, gridded at 0.05° latitude-longitude resolution (individual sensors), and aggregated and gap-filled on a daily 0.05° grid. Skin SSTs, depth-adjusted SSTs de-aliased with respect to the diurnal cycle, and SST anomalies are provided. Target applications of the dataset include: climate and ocean model evaluation; quantification of marine change and variability (including marine heatwaves); climate and ocean-atmosphere processes; and specific applications in ocean ecology, oceanography and geophysics.
Highlights
Background & SummarySea surface temperature (SST) is an “essential climate variable1”
This paper presents a climate data record (CDR) of global SST spanning 1981–2016 derived from 4 × 1012 satellite measurements of thermal infra-red (TIR) radiance
The TIR measurements were collected by two series of sensors on Earth-orbiting satellites: 11 Advanced Very High Resolution Radiometers (AVHRRs) and three Along-Track Scanning Radiometers (ATSRs)
Summary
Background & SummarySea surface temperature (SST) is an “essential climate variable1”. ESA SST CCI ATSR L3U v2.149 European Space Agency Sea Surface Temperature Climate Change Initiative: AlongTrack Scanning Radiometer level-3 uncollated product version 2.1 global sea surface temperatures from Alongtrack Scanning Radiometers, presented on a 0.05° latitude-longitude grid at original time of observation, and spanning 1991 to 2012 270 G
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