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COBE-SST2 Sea Surface Temperature and Ice

Metadata Updated: November 12, 2020

A new sea surface temperature (SST) analysis on a centennial time scale is presented. The dataset starts in 1850 with monthly 1x1 means and is periodically updated. In this analysis, a daily SST field is constructed as a sum of a trend, interannual variations, and daily changes, using in situ SST and sea ice concentration observations. All SST values are accompanied with theory-based analysis errors as a measure of reliability. An improved equation is introduced to represent the ice-SST relationship, which is used to produce SST data from observed sea ice concentrations. Prior to the analysis, biases of individual SST measurement types are estimated for a homogenized long-term time series of global mean SST. Because metadata necessary for the bias correction are unavailable for many historical observational reports, the biases are determined so as to ensure consistency among existing SST and nighttime air temperature observations. The global mean SSTs with bias-corrected observations are in agreement with those of a previously published study, which adopted a different approach. Satellite observations are newly introduced for the purpose of reconstruction of SST variability over data-sparse regions. Moreover, uncertainty in areal means of the present and previous SST analyses is investigated using the theoretical analysis errors and estimated sampling errors. The result confirms the advantages of the present analysis, and it is helpful in understanding the reliability of SST for a specific area and time period.

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License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Date December 1, 2015
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) December 1, 2015 (lastUpdate)
Frequency Of Update

Metadata Source

Harvested from NOAA/ESRL/PSD

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Additional Metadata

Resource Type Dataset
Metadata Date December 1, 2015
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) December 1, 2015 (lastUpdate)
Responsible Party (Custodian)
Contact Email
Guid gov.noaa.esrl.psd.dataset.COBE-SST2_Sea_Surface_Temperature_and_Ice
Access Constraints
Coupled Resource
Frequency Of Update
Graphic Preview File
Harvest Object Id 85ad097e-dce8-49ed-8182-ccc73a412fc1
Harvest Source Id 9d930396-6206-4753-a731-106882c6d24c
Harvest Source Title NOAA/ESRL/PSD
Metadata Language eng; USA
Metadata Type geospatial
Progress ongoing
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1850-01-01
Temporal Extent End 2015-12-01

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