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| Reynolds/NOAA (OI.v2) SST Data Set |
| Variable(s) | Sea Surface Temperature |
|---|---|
| Land or Ocean | Ocean |
| Current Period of Record | 11/5/81-Current |
| Resolution | Weekly, Monthly, Global, 1o x 1o Long-Term Monthly Means (1971-2000) were calculated by the Climate Prediction Center using the method of Reynolds and Smith (1995) and Smith and Reynolds (1998). |
| Description: | Next generation version of the Reynolds OI SST Data set. Improvements in high latitude SST's have been made, as well as the reduction of residual satellite biases over areas with sparse data coverage. |
| Reference: | Reynolds, R.W., N.A. Rayner, T.M. Smith, D.C. Stokes, and W. Wang, 2001: An Improved In Situ and Satellite SST Analysis for Climate, J. Climate, submitted. |
| Data Set Location: |
NCAR(ascii format) NCEP(binary format) |
| Technical Overview | Expert User Guidance | Relevant Articles | Coverage Maps |
| Technical Overview |
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The NOAA OI.v2 SST monthly fields are derived by a linear interpolation of the weekly optimum interpolation (OI) version 2 fields to daily fields then averaging the daily values over a month. The monthly fields are in the same format and spatial resolution as the weekly fields. The OI.v2 analysis is described in Reynolds, R.W., N.A. Rayner, T.M. Smith, D.C. Stokes, and W. Wang, 2001: An Improved In Situ and Satellite SST Analysis for Climate, J. Climate, submitted. The paper has been accepted by the Journal of Climate subject to minor revisions. A preprint of the paper can be obtained in the directory:
ftp://ftp.ncep.noaa.gov/pub/cmb/People/reynolds/oiv2pap/ The paper is presently in two word perfect files (oiv2_text.wpd and oiv2_figs.wpd) and two word files (oiv2_text.doc and oiv2_figs.doc). The first file is the text, the second is the figures.) The most significant change for the OI.v2 is the improved simulation of SST obs from sea ice data following a technique developed at the UK Met Office. This change has reduced biases in the OI SST at higher latitudes. Also, the update and extension of COADS has provided us with improved ship data coverage through 1997, reducing the residual satellite biases in otherwise data sparse regions. 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 Cressman interpolation to produce a complete grid for possible interpolation to other grids. The ocean and land areas are defined by a land sea mask. This data set is a binary, direct access file, lstags.ondeg.dat. The spatial grid is defined identically to the grid for the SST arrays. For a complete description of the data as given by the providers and references for the papers cited in the description please see their information file. |
| Expert User Guidance |
| We are currently soliciting expert advice concerning this data set, please send email to asphilli@ucar.edu . |
| Relevant Arcticle Links |
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Reynolds, R.W., 1993: Impact of Mount Pinatubo aerosols on satellite-derived sea surface temperatures. J. Climate, 6, 768-774. Reynolds, R. W. and D. C. Marsico, 1993: An improved real-time global sea surface temperature analysis. J. Climate, 6, 114-119. Reynolds, R. W. and T. M. Smith, 1994: Improved global sea surface temperature analyses. J. Climate, 7, 929-948. Reynolds, R. W. and T. M. Smith, 1995: A high resolution global sea surface temperature climatology. J. Climate, 8, 1571-1583. T. M. Smith and Reynolds, R. W., 1998: A high-resolution global sea surface temperature climatology for the 1961-90 base period. J. Climate, 11, 3320-3323. Reynolds, R.W., N.A. Rayner, T.M. Smith, D.C. Stokes, and W. Wang, 2002: An Improved In Situ and Satellite SST Analysis for Climate, J. Climate, 15, 1609-1625. |
| Coverage Maps |
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Click on the links below to view data coverage maps for a particular time period. Percentage of non-missing data per time period is plotted. Coverage is consistent throughout the period of record.
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Updated: 10/20/03 |