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NOAA OI SST V2 High Resolution Dataset

Data on and after 2016 is now v2.1

Brief Description:

  • NOAA High-resolution Blended Analysis of Daily SST and Ice. Data is from Sep 1981 and is on a 1/4 deg global grid. More Details...

Temporal Coverage:

  • Daily values from 1981/09 to present
  • Sea Ice Concentration data is missing for Dec 6th 1987- Jan 10th 1988.

Spatial Coverage:

  • 0.25 degree latitude x 0.25 degree longitude global grid (1440x720).
  • 89.875S - 89.875N,0.125E to 359.875E.


  • Surface

Update Schedule:

  • Daily
  • Data less than 15 days old may be subject to revision by NCEI.

Download/Plot Data: (FTP Access)

Archive parameters:
Variable Statistic Level Download File Create Plot/Subset
Sea Surface Temperature Daily Mean Surface https://downloads.psl.noaa.gov/Datasets/noaa.oisst.v2.highres/sst.day.mean.yyyy.nc(select 'see list') plot
Sea Surface Temperature Daily Anomaly Surface https://downloads.psl.noaa.gov/Datasets/noaa.oisst.v2.highres/sst.day.anom.yyyy.nc(select 'see list') plot
Sea Surface Temperature Daily Mean Error Surface https://downloads.psl.noaa.gov/Datasets/noaa.oisst.v2.highres/sst.day.err.yyyy.nc(select 'see list') plot
Sea Ice Concentration Daily Mean Surface https://downloads.psl.noaa.gov/Datasets/noaa.oisst.v2.highres/icec.day.mean.yyyy.nc(select 'see list') plot
Land Mask Surface lsmask.oisst.v2.nc
Sea Surface Temperature Long Term Mean Surface sst.day.mean.ltm.1971-2000.nc
Sea Surface Temperature Long Term Mean Surface sst.day.mean.ltm.1982-2010.nc

Usage Restrictions:

  • None

Detailed Description:


  • Data less than 15 days old may be subject to revision by NCEI
  • Daily Anomaly files are calculated relative to a 1971-2000 climatology

Related File Naming & Structure Information:

File Names:

  • var.day.stat.yyyy.v2.nc   (In directory: /Datasets/noaa.oissst.v2.highres/)

Dataset Format and Size:

  • PSL standard NetCDF4 about 250M Mbyte file for each daily ice file.
  • PSL standard NetCDF4 about 480M Mbyte file for each daily sst file.

Missing Data:

  • -9.96921e+36


  • Please note: If you acquire NOAA High Resolution SST 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 High Resolution SST 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 High Resolution SST data set freely available online in the future. Thank you!


  • Huang, B., C. Liu, V. Banzon, E. Freeman, G. Graham, B. Hankins, T. Smith, and H.-M. Zhang, 2021: Improvements of the Daily Optimum Interpolation Sea Surface Temperature (DOISST) Version 2.1. J. Climate, 34, 2923-2939, DOI 10.1175/JCLI-D-20-0166.1 (V2.1).
  • Reynolds, Richard W., Thomas M. Smith, Chunying Liu, Dudley B. Chelton, Kenneth S. Casey, Michael G. Schlax, 2007: Daily High-Resolution-Blended Analyses for Sea Surface Temperature. J. Climate, 20, 5473-5496 https://doi.org/10.1175/2007JCLI1824.1.

Original Source:


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