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==History and Evolution==
The CF conventions were introduced in 2003, after several years of development by a collaboration that included staff from U.S. and European climate and weather laboratories <ref>{{cite
| author = Gregory, Jonathan
| year = 2003
| title = The CF metadata standard
| url = http://cf-pcmdi.llnl.gov/documents/other/cf_overview_article.pdf
}}</ref>. The conventions contained generalizations and extensions to the earlier Cooperative Ocean/Atmosphere Research Data Service (COARDS) conventions <ref>{{cite web|url=http://ferret.wrc.noaa.gov/noaa_coop/coop_cdf_profile.html|title=Conventions for the Standardization of NetCDF files|date=May, 1995}}</ref> and the Gregory/Drach/Tett (GDT) conventions <ref>{{cite web|url=http://www-pcmdi.llnl.gov/drach/GDT_convention.html|title=GDT netCDF conventions for climate data, version 1.3|date=March 14, 1999}}</ref>. As the scope of the CF conventions grew along with its user base, the CF community adopted an [[open governance]] model <ref>{{cite
| author = Lawrence, B.N.
| year = 2003
| title = Maintaining and Advancing the CF Standard for Earth System Science Community Data
| url = http://cf-pcmdi.llnl.gov/documents/white-papers/cf2_whitepaper_final.html
}}</ref>. In December 2008 the trio of standards, netCDF+CF+OPeNDAP, was adopted by [[IOOS]] as a recommended standard (number 08-012) for the representation and transport of gridded data. The CF conventions are being considered by the [[NASA]] Standards Process Group (SPG) and others as more broadly applicable standards <ref>{{cite
| author = Rew, Russ
| year = 2010
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| url = http://www.esdswg.org/spg/rfc/esds-rfc-021/ESDS-RFC-021-v0.01.pdf
}}</ref>
<ref>{{cite
| author = Domenico, Ben
| year = 2009
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==Applications and User Base==
The CF conventions have been adopted by a wide variety of national and international programs and activities in the Earth sciences <ref>[http://cf-pcmdi.llnl.gov/projects-and-groups-adopting-the-cf-conventions-as-their-standard Projects and Groups Adopting or Encouraging the CF-Conventions as a Standard]</ref>. For example, they were required for the [[climate model]] output data collected for [[Coupled model intercomparison project]]s, which are the basis of [[Intergovernmental Panel on Climate Change]] assessment reports <ref>{{cite
| year = 2009
| title = Report of the 12th Session of the JSC/CLIVAR Working Group on Coupled Modelling (WGCM)
| url = http://wcrp.ipsl.jussieu.fr/Documents/WMP/136_WGCM12.pdf
}}</ref>.
They are promoted as an important element of scientific community coordination by the [[World Climate Research Programme]] <ref>{{cite
| author = Kinter, James L. III
| year = 2005
| title = Data Issues for WCRP Weather and Climate Modeling
| url = http://wcrp.ipsl.jussieu.fr/Documents/WMP/WMP1_KinterTaylor.pdf
}}</ref>
| author = Taylor, Karl
| year = 2005
| title = Issues Related to the Dissemination of Climate Model Output
| url = http://wcrp.ipsl.jussieu.fr/Documents/WMP/Presentations/WMP1_2-7Taylor.pdf
}}</ref>. They are also leveraged as a technical foundation for a number of software packages and data systems, including the Climate Model Output Rewriter (CMOR), which is post processing software for climate model data and the [[Earth System Grid]], which distributes climate and other data <ref>{{cite
| author = Doutriaux, Charles
| year = 2010
| title = Climate Model Output Rewriter
| url = http://esg-repo.llnl.gov/gitweb/?p=cmor.git;a=blob;f=Doc/cmor_users_guide.pdf
}}</ref><ref>{{cite
| author = Drach, Bob
| year = 2002
| title = Metadata Standards for Gridded Climate Data in the Earth System Grid
| url = http://archive.niees.ac.uk/talks/metadata/Bob_Drach_talk.ppt
}}</ref>
| year = 2006
| title = NetCDF in ArcGIS 9.2
| url = http://www.crwr.utexas.edu/gis/gishydro06/Introduction/Presentations/netCDF.ppt
}}</ref>. The CF conventions have also been used to describe the physical fields transferred between individual Earth system model [[software components]], such as atmosphere and ocean components, as the model runs
<ref>{{cite
| author = Dunlap, R. L. Mark, S. Rugaber, V. Balaji, J. Chastang, L. Cinquini, C. DeLuca, D. Middleton, and S. Murphy
| year = 2008
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| journal = Earth Science Informatics
| volume = 1
|
}}</ref>.
===Supported Data Types===
CF is intended for use with [[state estimation]] and [[forecasting]] data, in the atmosphere, ocean, and other physical domains. It was designed primarily to address gridded data types such as [[numerical weather prediction]] model outputs and [[climatology]] data in which [[data binning]] is used to impose a regular structure <ref>{{cite
| author = V. Balaji
| year = 2008
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| url = http://esdswg.eosdis.nasa.gov/WG/SPG/pdf/esdswg-cf-balaji.pdf
}}</ref>
<ref>{{cite
| year = 2006
| title = NetCDF in ArcGIS 9.2
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===Supported Data Formats===
CF originated as a standard for data written in [[NetCDF]], but its structure is general and it has been adapted for use with other data formats. For example, using the CF conventions with [[Hierarchical Data Format]] data has been explored <ref>{{cite
| author = Yang, M., R. Duerr, C. Lee
| year = 2009
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*[http://marinemetadata.org/references/esdscfconventions Standard for the CF Metadata Conventions (Marine Metadata Interoperabilty Project page)]
*[http://www.oceandatastandards.org/index.php?option=com_content&task=view&id=4&Itemid=8 Ocean Data Standards on Metadata]
[[Category:Metadata]]
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