RSS Optimally Interpolated Microwave and Infrared Daily Sea Surface Temperature Analysis

The through-cloud capabilities of satellite microwave radiometers provides a valuable picture of the global sea surface temperature (SST). To utilize this, scientists at Remote Sensing Systems (RSS) have created two Optimally Interpolated (OI) SST daily products, one using only microwave data at 25 km resolution and one using microwave and infrared data at 9 km resolution. These products are ideal for research activities in which a complete, daily SST map is more desirable than one with missing data due to orbital gaps or environmental conditions precluding SST retrieval. The 25 km microwave OI SST product contains the SST measurements from all operational radiometers. The 9 km microwave and infrared OI SST product combines the through-cloud capabilities of the microwave data with the high spatial resolution and near-coastal capability of the infrared SST data. All SST values are adjusted using a diurnal model to create a foundation SST. Improved global daily near real time (NRT) SSTs are useful for a wide range of scientific and operational activities.

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Temporal Range

  • Begin:  1998-01-01T1200+00
    End:  2025-07-23T1200+00

Keywords

Resource Type dataset
Temporal Range Begin 1998-01-01T1200+00
Temporal Range End 2025-07-23T1200+00
Temporal Resolution N/A
Bounding Box North Lat 90.0
Bounding Box South Lat -90.0
Bounding Box West Long -180.0
Bounding Box East Long 180.0
Spatial Representation grid
Spatial Resolution 0.25 degree
0.088 degree
Related Links

Related Resource #1 : Remote Sensing Systems (RSS) - Sea Surface Temperature (SST)
Additional Information N/A
Resource Format NetCDF4
Standardized Resource Format NetCDF
Asset Size 125122.57 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email datahelp@ucar.edu
Resource Support Organization N/A
Distributor NSF NCAR Geoscience Data Exchange
Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author Remote Sensing Systems
Publisher NSF National Center for Atmospheric Research
Publication Date 2018-02-12
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier d277008
Resource Version N/A
Topic Category geoscientificInformation
Progress onGoing
Metadata Date 2025-10-09T01:46:04Z
Metadata Record Identifier edu.ucar.gdex::d277008
Metadata Language eng; USA
Suggested Citation Remote Sensing Systems. (2018). RSS Optimally Interpolated Microwave and Infrared Daily Sea Surface Temperature Analysis. NSF National Center for Atmospheric Research. https://gdex.ucar.edu/datasets/d277008. Accessed 10 October 2025.

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