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NCEP Global Ocean Data Assimilation System (GODAS)

The National Centers for Environmental Prediction (NCEP) uses a Global Ocean Data Assimilation System (GODAS) to routinely produce monthly and pentad (5-day) mean global ocean gridded data. The analysis system, that was originally applied only to the tropical pacific, has evolved to use GFDL MOM.v3 model and give near global coverage. Briefly, the model domain specifications are 65N to 75S, 1 degree resolution with 1/3 degree resolution within 10 degree of the equator, 40 levels and 10 meter resolution in the upper 200 meters. These data are a valuable community asset for monitoring different aspects of ocean climate variability.

Reference Time series of monthly averages by variable derived from GODAS operational datasets for monthly averaged data in NetCDF format.

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PERIODS:

1980-01-01 00:00 +0000 to 2009-10-27 00:00 +0000 (Entire dataset)

Period details by subset

Period details by subset:
1980-01-01 00:00 +0000 to 2009-09-30 00:00 +0000 (Monthly Averaged GODAS Data)
1980-01-01 00:00 +0000 to 2009-10-27 00:00 +0000 (5-Day Averaged GODAS Data)

UPDATES:

Monthly (nominally)

VARIABLES:

Ocean Currents

Potential Temperature

Salinity

Vertical Wind Motion

GRIB parameter table

LEVELS:

See the detailed metadata for level information

TYPES:

Grid

COVERAGE:

Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=74.5S Northernmost=64.999N

Detailed coverage information

Detailed coverage information:
1° x 0.333°, 0.5E to 359.5E and 74.5S to 64.499N (360 x 418 Longitude/Latitude) (5-Day Averaged GODAS Data)
1° x 0.333°, 1E to 360E and 74S to 64.999N (360 x 418 Longitude/Latitude) (5-Day Averaged GODAS Data)
1° x 0.333°, 0.5E to 359.5E and 74.5S to 64.499N (360 x 418 Longitude/Latitude) (Monthly Averaged GODAS Data)
1° x 0.333°, 1E to 360E and 74S to 64.999N (360 x 418 Longitude/Latitude) (Monthly Averaged GODAS Data)

SOURCES:

DOC/NOAA/NWS/NCEP

National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce

PUBLICATIONS:

See the publications listed in introduction_godas.pdf
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 ds277.6."

VOLUME:

83.16 GBytes (Entire dataset)

Volume details by subset

Volume details by subset:
Monthly Averaged GODAS Data: 11.55 GBytes
5-Day Averaged GODAS Data: 71.60 GBytes

DATA FORMATS:

WMO GRIB1

RELATED DATASETS:

ds277.1 - NCEP ODAS Tropical Pacific Ocean Monthly 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.