Request Closed: March 21, 2025 9:00 am — April 21, 2025 11:59 pm (AoE)
Extension to WCS allows control of interpolation during processing of Coverages.
Contact: info@ogc.org
The Open Geospatial Consortium (OGC) is requesting public comment on the candidate OGC Web Coverage Service (WCS) – Interpolation Extension, before moving to vote on its adoption. Comments are due by April 21, 2025.
The WCS Interpolation Extension defines an extension to the WCS 2.1 Interface Standard – Core (OGC 17-089r1) to control interpolation during processing of a GetCoverage request. This affects all operations that require interpolation, such as subsetting, scaling, and Coordinate Reference System (CRS) transformation.
In this revision, interpolation scope is extended to allow slicing not only at, but additionally between, direct positions in the coverage if the coverage allows interpolation at all.
This revision addresses the problem where a slice position (such as a timeslice coordinate) deviates slightly through accuracy or rounding challenges and the request returns an error. Interpolation, such as between timeslices, is now allowed. Experience with large timeseries datacubes has shown that a graceful handling of slicing between direct positions is highly desirable.
Existing functionality is unchanged.
Providing Feedback
OGC Members interested in staying up to date on the progress of this standard, or contributing to its development, are encouraged to join the WCS 2.0 Standards Working Group via the OGC Portal. Non-OGC members who would like to know more about participating in this SWG are encouraged to contact the OGC Standards Program.
The candidate OGC Web Coverage Service Interface Standard – Interpolation Extension (OGC 24-018r1) (.DOCX) is available for review and comment on the OGC Portal. Comments are due by April 21, 2025 and should be submitted via the method below.
To Comment:
Comments can be submitted to a dedicated email reflector for a period ending on the “Close request date” listed above. Comments received will be consolidated and reviewed by OGC members for incorporation into the document. Please submit your comments via this email address, using this Comments Template for the message body.
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