COBE-SST2 Sea Surface Temperature and Ice

Metadata Updated: February 4, 2017

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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Dates

Metadata Date December 1, 2015
Metadata Created Date July 4, 2016
Metadata Updated Date February 4, 2017
Reference Date(s) December 1, 2015 (lastUpdate)
Frequency Of Update

Metadata Source

Harvested from NOAA CSW Harvest Source

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Additional Metadata

Resource Type Dataset
Metadata Date December 1, 2015
Metadata Created Date July 4, 2016
Metadata Updated Date February 4, 2017
Reference Date(s) December 1, 2015 (lastUpdate)
Responsible Party (Custodian)
Contact Email
Access Constraints
Coupled Resource
Frequency Of Update
Graphic Preview File http://www.esrl.noaa.gov/psd/mddb2/browseGraphics/COBE-SST2_Sea_Surface_Temperature_and_Ice.png
Guid gov.noaa.esrl.psd.dataset.COBE-SST2_Sea_Surface_Temperature_and_Ice
Harvest Object Id 8de87bfc-c5ef-4295-b57e-c7675ab09715
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence
Metadata Language
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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