NCAR Resarch Data Archive logo

NOCS Surface Flux Dataset v2.0

| DOI: 10.5065/V8E1-ZD23

The National Oceanography Centre Southampton (NOCS) Version 2.0 Surface Flux Dataset is a monthly mean gridded dataset of marine surface measurements and derived fluxes constructed using optimal interpolation. Input for the period 1973 to 2006 are ICOADS Release 2.4 ship data, the update from 2007 to 2014 uses ICOADS Release 2.5 and data after 2007 are preliminary. The dataset is presented as a time series of monthly mean values on a 1 degree area grid. The quality of the gridded data is quantified by estimates of random, bias and total uncertainty. The monthly means were derived from daily estimates of each variable and the standard deviation of these daily values is also available. Click HERE for detailed variable information. Users are advised to take account of the uncertainty estimates provided, and to note that in very poorly sampled regions, such as the Southern Ocean, the uncertainty estimates themselves may be unreliable.

Surface meteorological fields have been adjusted to account for varying measurement heights and for known biases (Berry and Kent 2009, Berry and Kent 2011). Surface fluxes have been calculated from daily fields of the surface meteorological parameters using bulk parameterizations (Reed 1977; Clark et al. 1974; Smith 1980; 1988).

Temporal Range:
1973-01-16 12:00 +0000 to 2014-12-16 12:00 +0000 (Entire dataset) Period details by dataset product
Air Temperature Cloud Frequency Heat Flux Humidity
Sea Surface Temperature Surface Pressure Surface Winds
Vertical Levels:
See the detailed metadata for level information.
Data Types:
Spatial Coverage:
Longitude Range: Westernmost=180W Easternmost=180E
Latitude Range: Southernmost=90S Northernmost=90N Detailed coverage information
Data Contributors:
National Oceanography Centre, University of Southampton
Related Resources:
Berry, D. I. and Kent, E. C., 2011: Air-Sea Fluxes from ICOADS: The Construction of a New Gridded Dataset with Uncertainty Estimates International Journal of Climatology, 31(7), 987-1001 (DOI: 10.1002/joc.2059).

Berry, D. I. and E. C. Kent, 2009: A New Air-Sea Interaction Gridded Dataset from ICOADS with Uncertainty Estimates Bulletin of the American Meteorological Society, 90(5), 645-656 (DOI: 10.1175/2008BAMS2639.1).

Total Volume:
7.19 GB (Entire dataset) Volume details by dataset product
Data Formats:
Related RDA Datasets:
International Comprehensive Ocean-Atmosphere Data Set (ICOADS) Release 2.5, Individual Observations
More Details:
View a more detailed summary of the data, including specific date ranges and locations by parameter
Metadata Record:
Data License:
Citation counts are compiled through information provided by publicly-accessible APIs according to the guidelines developed through the project. If journals do not provide citation information to these publicly-accessible services, then this citation information will not be included in RDA citation counts. Additionally citations that include dataset DOIs are the only types included in these counts, so legacy citations without DOIs, references found in publication acknowledgements, or references to a related publication that describes a dataset will not be included in these counts.