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Levels:

• Sea Surface

Sea Surface Temperature (SST) is an important factor for weather forecasts and climate outlooks. Where sea surface temperatures are relatively high, heat energy and moisture enter the atmosphere. Downwind of these warm areas, chances for precipitation are enhanced. Conversely, lower sea surface temperatures mean less evaporation. HOME > Monitoring and Data > Oceanic & Atmospheric Data > Monthly Atmospheric and SST Indices: Alert Climate Diagnostics Bulletin Updates to Climatologies and Indices Beginning with January 2011 Data (To appear in February 2011).

Update Schedule:

• Weekly
• Monthly

Download/Plot Data:

Usage Restrictions:

• None

Sea Surface Temperature Data Download For Windows 10

Detailed Description:

• The Physical Sciences Division has collected and made available in (COARDS and CF-1.0 compliant) netCDF files, the weekly, monthly NOAA OI SST V2 data and monthly long-term mean from NCEP (Y. Xue) based on the V2 data.

  Weekly Data

  The optimum interpolation (OI) sea surface temperature (SST) analysisis produced weekly on a one-degree grid. The analysis uses in situ andsatellite SST's plus SST's simulated by sea-ice cover. Before theanalysis is computed, the satellite data is adjusted for biases usingthe method of Reynolds (1988) and Reynolds and Marsico (1993).

  The dates used in the netCDF files are the datesof the beginning of the 7-day average period. For the more recent period, 1990-present, the weeks are defined to be centered on Wednesday. During the period 1981-1989, the weeks are centered on Sunday.

  The latitude/longitude values in the netCDF coordinate variables are the centers of the grid cells.

  The ice field shows the weekly median ice concentration values input tothe SST analysis. Ice concentration is stored as the percentage of areacovered. For the ice fields, the land and coast have been set to the netCDF missing value. Note, the ice land mask is a function of the ice analysis and may change periodically.

  The OI analysis is done over all ocean areas and the Great Lakes.There is no analysis over land. The land values are filled by a Cressmaninterpolation to produce a complete grid for possible interpolation toother grids. The ocean and land areas are defined by a land sea mask (the lsmask.nc file).Land values for sst do not necessarily coincide with land values from ice analysis.

  Monthly Data

  The NOAA OI.v2 SST monthly fields are derived by a linear interpolation ofthe weekly optimum interpolation (OI) version 2 fields to daily fields thenaveraging the daily values over a month. The monthly fields are in thesame format and spatial resolution as the weekly fields.

  The ice field shows the approximate monthly average of the iceconcentration values input to the SST analysis. Ice concentration isstored as the percentage of area covered. For the ice fields, the land and coast grid cells have been set to the netCDF missing value.

  Monthly Long-term mean Data

  A climatology based on these fields was derived by YanXue of the NCEP Climate Prediction Center following the technique ofReynolds and Smith (1995) and Smith and Reynolds (1998). The climatologies are available here in the sst.ltm.*.nc files and include 1961-1990 and 1971-2000. See the references for details on how the climatologies were calculated.

  For more information see http://www.emc.ncep.noaa.gov/research/cmb/sst_analysis/.

Caveats:

Noaa Sea Surface Temperature Map

• The current weekly means are generally one week behind the current date.

Related File Naming & Structure Information:

File Names:

• var.stat.time.nc (In directory: /Datasets/noaa.oisst.v2/)

OpenDap File Names:

• https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/noaa.oisst.v2/var.stat.time.nc

Dataset Format and Size:

• PSD standard NetCDF 55 Mbyte file for each weekly 1981-1989 file (packed).
• PSD standard NetCDF >110 Mbyte file for each weekly 1990-present file (packed).
• PSD standard NetCDF >38 Mbyte file for each monthly file (packed).
• PSD standard NetCDF 2 Mbyte file for each LTM file (packed).
• PSD standard NetCDF 133 Kbyte file for each mask file.

Sea Surface Temperature Data Download For Mac

Noaa Sea Surface Temperature Charts

Missing Data:

• Missing data is flagged with a value of 32767s.
• Land and coast set to missing for ice fields.
• SST land areas can be masked using the lsmask.nc file.

Citation:

• Please note: If you acquire NOAA_OI_SST_V2data products from PSD, we ask that you acknowledge us in your use of the data. This may be done by including text such asNOAA_OI_SST_V2 data provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their Web site at https://www.esrl.noaa.gov/psd/ in any documents or publications usingthese data. We would also appreciate receiving a copy of the relevantpublications. This will help PSD to justify keeping the NOAA_OI_SST_V2 data set freely available online in thefuture. Thank you!

Sea Surface Temperature Data Download For Windows 7

References:

Original Source:

• Climate Modeling Branch W/NP24
  NCEP/NWS/NOAA
  5200 Auth Road, Room 807
  Camp Springs, MD 20746 USA
  

Contact:

• Physical Sciences Division: Data Management
  NOAA/ESRL/PSD
  325 Broadway
  Boulder, CO 80305-3328
  esrl.psd.data@noaa.gov