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NOAA Extended Reconstructed Sea Surface Temperature (SST) V4

Brief Description:

  • A global monthly SST analysis from 1854 to the present derived from ICOADS data with missing data filled in by statistical methods. More Details...

Temporal Coverage:

  • Monthly values for 1854/01 - present.
  • Long term monthly means, derived from data for years 1971 - 2000.
  • Long term monthly means, derived from data for years 1981 - 2010.

Spatial Coverage:

  • 2.0 degree latitude x 2.0 degree longitude global grid (89x180).
  • 88.0N - 88.0S, 0.0E - 358.0E.


  • Sea Surface

Update Schedule:

  • Variable

Download/Plot Data: (FTP Access)

Variable Statistic Level Units Download File Create Plot/Subset
Sea Surface Temperature Monthly Mean Surface degC sst.mnmean.v4.nc plot
Sea Surface Temperature Monthly Long Term Mean Surface degC sst.ltm.19812010.v4.nc plot

Usage Restrictions:

  • None

Detailed Description:


  • None

Related File Naming & Structure Information:

File Names:

  • err | sst.stat[.time].nc   (In directory: /Datasets.private/noaa.ersst/)

OpenDap File Names:

  • /thredds/dodsC/Datasets/noaa.ersst/ | sst.stat[.time].v4.nc   

Dataset Format and Size:

  • PSL standard NetCDF ~60 Mbyte file for each monthly file.
  • PSL standard NetCDF 388 Kbyte file for each long term mean file..

Missing Data:

  • Data have been interpolated in time and space by the providers. Land points are flagged with a value of -9.96921e+36.


  • Please note: If you acquire NOAA_ERSST_V4 data products from PSL, we ask that you acknowledge us in your use of the data. This may be done by including text such as NOAA_ERSST_V4 data provided by the NOAA/OAR/ESRL PSL, Boulder, Colorado, USA, from their Web site at / in any documents or publications using these data. We would also appreciate receiving a copy of the relevant publications. This will help PSL to justify keeping the NOAA_ERSST_V4 data set freely available online in the future. Thank you!



Original Source:


  • Physical Sciences Laboratory: Data Management
    325 Broadway
    Boulder, CO 80305-3328