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Description

A Group for High Resolution Sea Surface Temperature (GHRSST) Level 4 sea surface temperature (SST) analysis produced daily on an operational basis at the Canadian Meteorological Center. This dataset merges infrared satellite SST at varying points in the time series from the Advanced Very High Resolution Radiometer (AVHRR) from NOAA-18,19, the European Meteorological Operational-A (METOP-A) and Operational-B (METOP-B), and microwave data from the Advanced Microwave Scanning Radiometer 2 (AMSR2) onboard the GCOM-W satellite in conjunction with in situ observations of SST from drifting buoys and ships from the ICOADS program. It uses the previous days analysis as the background field for the statistical interpolation used to assimilate the satellite and in situ observations. This dataset adheres to the GHRSST Data Processing Specification (GDS) version 2 format specifications.

Product Summary

Platforms
NOAA-19 ,
NOAA-20 ,
MOORINGS ,
Suomi-NPP ,
GCOM-W1 ,
METOP-A ,
METOP-B
Instruments
AVHRR ,
DRIFTING BUOYS ,
VIIRS ,
AMSR2 ,
AVHRR-3
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Resolution
0.1 Decimal Degrees x 0.1 Decimal Degrees
Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2016-01-01
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC) ,
Canadian Meteorological Centre, Meteorological Service of Canada, Environment Canada (CA/EC/MSC/CMC)
Concept ID
C2036881720-POCLOUD
Data State
ACTIVE
Number of Files/Granules
3634
Processing Level
4
Published
Updated
Science Keywords
Sea Surface Temperature

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Canada Meteorological Center. (2017). GHRSST Level 4 CMC0.1deg Global Foundation Sea Surface Temperature Analysis (GDS version 2) [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/GHCMC-4FM03 Date Accessed: 2025-12-14

Documents

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
analysed_sst SST defined at all grid points but no physical meaning is ascribed to values over land kelvin short -32768 -200 to 4000 0.01
analysis_error Error defined at all grid points but no meaning is ascribed to values over land kelvin short -32768 0 to 32767 0.01
lat Latitude geographical coordinates,WGS84 projection degrees_north float N/A -90 to 90 1
lon Longitude geographical coordinates,WGS84 projection degrees_east float N/A -180 to 179.9 1
mask Mask can be used to further filter the data N/A byte -1 0 to 31 1
sea_ice_fraction Sea ice area fraction. No meaning is ascribed to values over land 1 byte -1 0 to 100 0.01
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