7 February 2013 - The Open Geospatial Consortium (OGC) seeks
comments on an OGC discussion paper, netCDF Uncertainty Conventions
(netCDF-U) 1.0. This discussion paper proposes a set of conventions for
managing uncertainty information within the netCDF classic (also known
as netCDF3) data model and format.
The main mechanism for modeling uncertainty in netCDF-U files
consists of annotating the netCDF data variables with
uncertainty-related semantics based on the Uncertainty Markup Language
The netCDF-U Conventions are applicable to data encoded in the
netCDF3 format, with possible limitations, depending on conflicting
conventions to which a given netCDF dataset may also be compliant. (A
netCDF data set may be compliant with more than one convention.)
The netCDF-U Conventions are designed to be fully compatible with
the netCDF Climate and Forecast Conventions (netCDF-CF), the de-facto
standard for much of the data in the Fluid Earth Science community.
This discussion paper may relate to other OGC standards and
discussion papers that make use of the netCDF3 data format. In addition,
the work described in the paper may have implications for future OGC
standards work directed at communicating geospatial data provenance and
uncertainty in contexts other than netCDF.
Comments can be directed to OGC via the netCDF-U mailing list above.
The OGC is an international consortium of more than 480 companies,
government agencies, research organizations, and universities
participating in a consensus process to develop publicly available
geospatial standards. OGC Standards support interoperable solutions that
"geo-enable" the Web, wireless and location-based services, and
mainstream IT. OGC Standards empower technology developers to make
geospatial information and services accessible and useful with any
application that needs to be geospatially enabled. Visit the OGC website