OGC adopts netCDF Enhanced Data Model Extension Standard

24 September 2012 - The Open Geospatial Consortium (OGC) membership has approved the Enhanced Data Model Extension to the OGC Network Common Data Form (netCDF) Core Encoding Standard. The Enhanced Data Model Extension, along with the Core Encoding Standard, the netCDF Binary Encoding Extension Standard - netCDF Classic, and the 64-bit Offset Format (adopted as official OGC standards in April 2011) are available for free download at http://www.opengeospatial.org/standards/netcdf

The enhanced data model (sometimes referred to as the netCDF-4 data model) is an extension to the classic model that adds new forms of data representation and new data types while preserving backward compatibility.  Specifically, it adds six new primitive data types, four user-defined data types, multiple unlimited dimensions, and groups to organize data hierarchically and provide scopes for names. 

Although it was originally developed for the Earth science community, netCDF can be used to communicate and store a wide variety of multidimensional data. The netCDF data model is particularly well suited to providing data in forms familiar to atmospheric and oceanic scientists, specifically, as sets of related arrays. 

NetCDF is self-documenting, which means it can internally store information used to describe the data. For example, the internal documentation can associate various physical quantities (such as temperature, pressure, and humidity) with spatio-temporal locations (such as points at specific latitudes, longitudes, vertical levels, and times). Climate and Forecast (CF) Metadata Conventions are often used in conjunction with netCDF as a means of specifying semantic information that promotes the processing and sharing of climate and forecast data created with the netCDF application programming interface (API). The semantic metadata is conveyed internally within the netCDF datasets.  

NetCDF was developed and is supported by the Unidata Program Center at the University Corporation for Atmospheric Research (UCAR) ( http://www.ucar.edu/) under sponsorship of the Atmospheric and Geoscience Division of the US Government National Science Foundation.  It has been formally recognized by the US Government’s NASA and NOAA standards bodies. UCAR and other OGC members introduced netCDF into the OGC as a candidate OGC standard to encourage broader international use and greater interoperability among clients and servers interchanging data in binary form. Among other benefits, this will make the large collections of environmental netCDF data more readily accessible and usable by non-experts. 

The OGC is an international consortium of more than 465 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 at http://www.opengeospatial.org/contact.


Email Contact

Review Article Be the first to review this article


Featured Video
Sr. GIS Technical Analyst for Southern California Edison SCE Transmission and Distribution Organization at Rosemead, CA
Imagery Analyst for ARA at Albuquerque, NM -1229, NM
Data Scientist for University of Utah at Salt Lake City, UT
Database Specialist for MDA Information Systems LLC at Gaithersburg, MD
Inside Sales for SolidCAM at Newtown, PA
Project Architect for LAMBERT Architecture and Interiors at Winston-Salem, NC
Upcoming Events
2017 GIS/CAMA Technologies Conference at Chattanooga Convention Center Chattanooga Tennessee - Mar 6 - 9, 2017
IGTF 2017 ASPRS Annual Meeting 2017 at Marriot Waterfront Baltimore Baltimore MD - Mar 11 - 17, 2017
MAPPS Federal Programs Conference at Sheraton Hall Silver Spring Maryland - Mar 13 - 15, 2017
WorldCover 2017 Conference at ESRIN Italy - Mar 14 - 16, 2017
Teledyne Optech

Internet Business Systems © 2017 Internet Business Systems, Inc.
595 Millich Dr., Suite 216, Campbell, CA 95008
+1 (408)-337-6870 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering EDACafe - Electronic Design Automation TechJobsCafe - Technical Jobs and Resumes  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy Policy