Please Note: This dataset is retired, and is displayed for archive purposes only, and may not reflect the most updated information.

However, a newer version exists.
NOAA Smith and Reynolds Extended Reconstructed Sea Surface Temperature (ERSST) Level 4 Monthly Version 4 Dataset in netCDF. DOI: https://doi.org/10.5067/ERSST-L4N40

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Smith and Reynolds NCDC Level 4 Historical Reconstructed SST Monthly Version 3b netCDF
DOI10.5067/REY3B-ERMON
Short NameREYNOLDS_NCDC_L4_SST_HIST_RECON_MONTHLY_V3B_NETCDF
DescriptionThe Smith & Reynolds Extended Reconstructed Sea Surface Temperature (ERSST) Level 4 dataset provides a historical reconstruction of monthly global ocean surface temperatures and temperature anomalies over a 2 degree spatial grid since 1854 from in-situ observations based on a consistent statistical methodology that accounts for uneven sampling distributions over time and related observational biases. Version 3b of this dataset implements release 2.4 of ICOADS (International Comprehensive Ocean-Atmosphere Data Set) and is supplemented by monthly GTS (Global Telecommunications Ship and buoy) system data. As for the prior ERSST version, v3b implements Empirical Orthogonal Teleconnection analysis (EOT) but with an improved tuning method for sparsely sampled regions and periods. ERSST anomalies are computed with respect to a 1971-2000 month climatology. The netCDF version of ERSST v3b contains extended reconstructed sea surface temperature, SST anomaly, and associated estimated SST error standard deviation fields in netCDF classic format with CF1.0 standard metadata.
Version3b
Dataset TypeRETIRED
Persistent IDPODAAC-REY3B-ERMON
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Citation Smith, T., Reynolds, R.. 1981. Smith and Reynolds NCDC Level 4 Historical Reconstructed SST Monthly Version 3b netCDF. Ver. 3b. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/REY3B-ERMON

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For more information see Data Citations and Acknowledgments.

Journal Reference Smith, T.M., R.W. Reynolds, Thomas C. Peterson, and Jay Lawrimore, 2008: Improvements to NOAA's Historical Merged Land-Ocean Surface Temperature Analysis (1880-2006). Journal of Climate,21, 2283-2296.