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NOAA Optimum Interpolation 1/4 Degree Daily Sea Surface Temperature Analysis, Version 2

Two new high resolution sea surface temperature (SST) analysis products have been developed by NOAA NCDC using optimum interpolation (OI). The analyses have a spatial grid resolution of 0.25 degrees and temporal resolution of 1 day. One product uses Advanced Very High Resolution Radiometer (AVHRR) infrared satellite SST data. The other uses AVHRR and Advanced Microwave Scanning Radiometer (AMSR) on the NASA Earth Observing System satellite SST data. Both products also use in situ data from ships and buoys and include a large-scale adjustment of satellite biases with respect to the in situ data. Two products are needed because there is an increase in signal variance when AMSR became available in June 2002 due to its near all-weather coverage.

PERIODS:

1981-09-01 00:00 +0000 to 2009-10-31 00:00 +0000 (Entire dataset)

Period details by subset

Period details by subset:
1981-09-01 00:00 +0000 to 2009-10-31 00:00 +0000 (AVHRR infrared satellite SST data)
2002-06-01 00:00 +0000 to 2009-10-31 00:00 +0000 (AVHRR and AMSR on the NASA Earth Observing System satellite SST data)

UPDATES:

Monthly (nominally)

VARIABLES:

Sea Ice Concentration

Sea Surface Temperature

LEVELS:

See the detailed metadata for level information

TYPES:

Grid

COVERAGE:

Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=89.875S Northernmost=89.875N

Detailed coverage information

Detailed coverage information:
0.25° x 0.25°, 0.125E to 359.875E and 89.875S to 89.875N (1440 x 720 Longitude/Latitude) (AVHRR and AMSR on the NASA Earth Observing System satellite SST data)
0.25° x 0.25°, 0.125E to 359.875E and 89.875S to 89.875N (1440 x 720 Longitude/Latitude) (AVHRR infrared satellite SST data)

SOURCES:

DOC/NOAA/NESDIS/NCDC

National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce

PUBLICATIONS:

Reynolds, R.W., T.M. Smith, C. Liu, D.B. Chelton, K.S. Casey and M.G. Schlax, 2007: Daily High-resolution Blended Analyses for Sea Surface Temperature. J. of Climate, 20, 5473-5496 (DOI: 10.1175/2007JCLI1824.1).

Recommended acknowledgement for this dataset:
"The data for this study are from the Research Data Archive (RDA) which is maintained by the Computational and Information Systems Laboratory (CISL) at the National Center for Atmospheric Research (NCAR). NCAR is sponsored by the National Science Foundation (NSF). The original data are available from the RDA (http://dss.ucar.edu) in dataset number ds277.7."

VOLUME:

23.73 GBytes (Entire dataset)

Volume details by subset

Volume details by subset:
AVHRR infrared satellite SST data: 18.96 GBytes
AVHRR and AMSR on the NASA Earth Observing System satellite SST data: 4.77 GBytes

DATA FORMATS:

netCDF

RELATED DATASETS:

ds277.0 - NCEP Version 2.0 OI Global SST and NCDC Version 3.0 Extended Reconstructed SST Analyses

MORE DETAILS:

View more details for this dataset, including dataset citation, data contributors, and other detailed metadata

CONTACT:

For assistance with this dataset, please contact Zaihua Ji (303-497-1819) . If the specialist is unavailable, please contact Data Help.

DATA ACCESS:

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COMMUNITY: