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522 lines
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<!-- InstanceBegin template="../../../Templates/MyUnidata.dwt" codeOutsideHTMLIsLocked="true" -->
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<!-- InstanceBeginEditable name="Title" -->
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<TITLE>Where is NetCDF Used?</TITLE>
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<META NAME="UIINDEX" CONTENT="0">
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<META NAME="BOOKMARK" CONTENT="NetCDF Usage">
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<META NAME="AUTHOR" CONTENT="russ">
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<META NAME="KEYWORDS" CONTENT="netcdf, use, usage, who, where">
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<META NAME="DESCRIPTION" CONTENT="The netcdfgroup@unidata.ucar.edu mailing list has over 500 addresses in 32 countries. Several groups have adopted netCDF as a standard way to represent some forms of scientific data.">
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</head>
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<body>
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<!-- InstanceBeginEditable name="Content Goes Here" -->
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<A NAME="netcdf" ID="netcdf"></A>
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<h1>Where is NetCDF Used?</h1>
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<p>
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Making the software available freely available without registration
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makes it difficult
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to know where and how netCDF is being used, but we have compiled a
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<a
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href="http://www.unidata.ucar.edu/committees/usercom/2013Apr/statusreports/metrics/downloads/session/netcdf/known_sites_list_per_year.html"
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>list</a> of over 1300 educational, research, and government sites that have
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recently made some use of netCDF, based on
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<ol>
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<li>
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downloads from the Unidata site (ftp and http)
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</li>
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<li>
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subscribers and posters to netCDF mailing lists
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</li>
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<li>
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email support requests
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</li>
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<li>
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participation in annual netCDF workshops
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</li>
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</ol>
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during the period from 2012-04-01 through 2013-04-01.
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</p>
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<p>
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Recent standardization efforts have resulted in <a href="docs/standards.html" >netCDF endorsements</a> by
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several standards bodies.
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</p>
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<p>
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Here is a partial list
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of organizations using netCDF for archiving and
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accessing some of their data:
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</p>
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<ul>
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<li>
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NOAA:
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<ul>
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<li>
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GFDL
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</li>
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<li>
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NOAA NODC (National Oceanographic Data Center)
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</li>
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<li>
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NCEP NOMADS service
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</li>
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<li>
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PMEL
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</li>
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<li>
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FSL
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</li>
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<li>
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NCDC NOMADS service
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</li>
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<li>
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NDBC (National Buoy Data Center)
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</li>
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<li>
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NOS/COOPS
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</li>
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<li>
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NMFS/PFEL
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</li>
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<li>
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ESRL (formerly CDC)
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</li>
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</ul>
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</li>
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<li>
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EUMETSAT Data Centre
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</li>
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<li>
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GOES-R Ground Segment Products
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</li>
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<li>
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DOE/PCMDI CMIP5 climate model outputs
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</li>
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<li>
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NASA/JPL
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</li>
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<li>
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NASA/GSFC
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</li>
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<li>
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GHRSST-PP community
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</li>
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<li>
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US Navy/ Fleet Numerical/GODAE Data Server
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</li>
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<li>
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OceanSITES.org
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</li>
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<li>
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National Snow and Ice Data Center (NSIDC)
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</li>
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<li>
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USGS, Woods Hole Field Center (WHFC)
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</li>
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<li>
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National Center for Atmospheric Research (NCAR)
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</li>
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<li>
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Center for Ocean-Land-Atmosphere Studies (COLA)
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</li>
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<li>
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George Mason University (GMU) Center for Earth Observing and Space Research
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</li>
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<li>
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Asia-Pacific Data-Research Center (APDRC)
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</li>
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<li>
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(Australia) CSIRO Marine and Atmospheric Research (CMAR) Remote Sensing
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</li>
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<li>
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(Australia) Centre for Australian Weather and Climate Research (CAWCR)
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</li>
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<li>
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(France) AVISO (satellite data)
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</li>
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<li>
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(France) French Research Institute for Exploitation of the Sea (IFREMER)
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</li>
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<li>
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(Germany) Federal Waterways Engineering and Research Institute (BAW)
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</li>
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<li>
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(Germany) German Aerospace Agency (DLR)
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</li>
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<li>
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(Italy) International Centre for Theoretical Physics (ICTP)
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</li>
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<li>
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(South Korea) Seoul National University (SNU)
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</li>
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<li>
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(Netherlands) European Climate Assessment (ECA), Atmospheric
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Data Access for the Geospatial User Community (ADAGUC) product standard
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</li>
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<li>
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(Netherlands) Cabauw Experimental Site for Atmospheric Research (CESAR)
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</li>
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</ul>
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<p>
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We list below brief descriptions of some of the projects
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and groups that have reported on their use of netCDF.
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</p>
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<p></p>
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<hr />
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<ul>
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<li>
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Several commercial analysis and data visualization packages have been adapted
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to access netCDF data. For more information about these and about freely-available
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software packages that can be used to display, analyze, and manipulate netCDF
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data, see the <a
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href="/software/netcdf/software.html">http://www.unidata.ucar.edu/software/netcdf/software.html</a>
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document.
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<p></p>
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</li>
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<li>
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NOAA's <a href="http://www.cdc.noaa.gov">Climate Analysis
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Branch (CAB)</a>, conducts diagnostic studies of climate variability
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on time scales of months to centuries. CAB climatological data is
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archived in netCDF format.
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This site gives access to metadata (information about these datasets) which
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can be searched by various keywords; actual data can be subset or plotted
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on-line and can be downloaded via ftp.
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<p></p>
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</li>
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<li>
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Modeling groups contributing output to the Intergovernmental
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Panel on Climate Change (IPCC)
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model archives at the Program for Climate Model Diagnosis and
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Intercomparison (PCMDI) are <a href="http://www-pcmdi.llnl.gov/ipcc/IPCC_output_requirements.htm" >required</a> to provide files in netCDF
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conforming with the NetCDF Climate and Forecast (CF) Metadata
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Conventions.
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<p></p>
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</li>
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<li>
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EUMETSAT has begun to offer netCDF as a common delivery format
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for <a
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href="http://www.eumetsat.int/Home/Main/DataAccess/EUMETSATDataCentre/SP_20111027152034196?l=en)"
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>popular datasets</a> ordered from their archive. The developed
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datasets use netCDF-4 classic model format.
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<p></p>
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</li>
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<li>
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NASA's Halogen Occultation Experiment ( <a
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href="http://haloedata.larc.nasa.gov/">HALOE</a>) makes HALOE data available in
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netCDF form. The <a
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href="http://haloedata.larc.nasa.gov/haloe_data_2.html">HALOE Data Viewer</a>
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provides each data type with a menu driven interface to assist in locating
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files based on date, time, species, data version and mode.
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<p></p>
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</li>
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<li>
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The global ocean modeling effort at Los Alamos National Laboratory (LANL),
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as part of the DOE <a
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href="http://www.esd.ornl.gov/programs/chammp/chammp.html">CHAMMP</a> effort and
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one of the DOE Grand Challenges, has selected netCDF as the archival format
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for its computational data. An effort to bring netCDF up on the parallel disks
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on the CM-5 is planned to begin shortly.
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<p></p>
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</li>
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<li>
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The National Center for Supercomputing Applications has incorporated the
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netCDF 2.3 interfaces into the latest release of their <a href="http://hdf.ncsa.uiuc.edu/">HDF</a>
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software, permitting HDF tools that use this interface to be applied to netCDF
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datasets that are either XDR- or HDF-encoded.
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<p></p>
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</li>
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<li>
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The Computer Planning Committee of NOAA's Pacific Marine Environmental
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Laboratory (PMEL) endorsed netCDF as the preferred data format for the Laboratory
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in early 1993. PMEL has developed two freely-distributed applications that
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utilize NetCDF -- the EPIC system (for observational data) and Ferret (gridded
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data).
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<p>
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<a href="http://www.pmel.noaa.gov/epic">EPIC</a> is a system for management,
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display and analysis of oceanographic time series and hydrographic data.
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EPIC toolkits for netCDF include a data file I/O library, which is layered
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on top of the netCDF library, a netCDF calculator (nccalc) linked with a
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scientific graphics package (PPLUS), a suite of display and analysis programs
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for oceanographic data, and a <a
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href="http://www.pmel.noaa.gov/epic/mexeps.html">MATLAB interface</a> to netCDF.
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</p>
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<p>
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<a href="http://www.pmel.noaa.gov/ferret/home.html">Ferret</a> is a visualization
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and analysis program, also built upon the PPLUS program, that permits users
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to explore large and complex gridded data sets. New variables may be defined
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interactively as mathematical transformations. Complex analyses proceed
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as hierarchical variable definitions. Visit <a
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href="http://ferret.wrc.noaa.gov/fbin/climate_server">Live Access to Climate Data</a>
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for a better sense of the Ferret program.
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</p>
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<p></p>
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</li>
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<li>
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<a href="http://www.ldeo.columbia.edu/">Lamont-Doherty Earth Observatory</a>
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of Columbia University has converted all Marine Geophysics data (gravity,
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magnetics and bathymetry) acquired in the past 40 years by scientists at L-DEO
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as well as at other institutions to netCDF. The <a
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href="http://www.ldeo.columbia.edu/~mggdb/">Marine Geology & Geophysics Database</a>
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is a fundamental resource for Lamont scientists and students.
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<p></p>
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</li>
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<li>
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The <a href="http://www.soest.hawaii.edu/gmt">Generic Mapping Tools (GMT)</a>,
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a set of command-line tools for data manipulation and display using PostScript,
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make use of netCDF for storage of 2-D gridded data sets. GMT is used worldwide
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by about 6000 scientists, according to the developers.
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<p></p>
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</li>
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<li>
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<a href="http://www.epa.gov/asmdnerl/mod3.html">The Models-3 Project</a>,
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being cooperatively pursued by the EPA's Atmospheric Research Laboratory
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and by North Carolina Supercomputing Center, is using an environmental-modeling-specific
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applications programming interface on top of UCAR's netCDF as the means
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for persistent storage of both observational and model-output data, as well
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as for storing sets of data-file-structure definitions and (prototype, so
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far) data-dependency graphs for scheduling the sets of programs which constitute
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their environmental models.
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<p></p>
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</li>
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<li>
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A group in the Atmospheric Chemistry Division at NCAR (the National Center
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for Atmospheric Research) that deals with UARS (Upper Atmospheric Research
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Satellite) data uses netCDF for their binary data format. Output from NCAR's
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High Altitude Observatory Division Thermospheric General Circulation Model
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(TGCM) and related models are converted to netCDF files for post-model visualization
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and diagnostic codes. NCAR's Research Aviation Facility has decided to
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use netCDF to distribute aircraft data.
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<p></p>
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</li>
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<li>
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NCAR's Research Data Program uses netCDF as the primary file format
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for data archived and used in the <a
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href="http://www.atd.ucar.edu/rdp/zebra.html">Zebra</a> display and analysis system.
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Quick look data from various projects is distributed by RDP in netCDF. NetCDF
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is also the file format used by the (Zebra-based) Integrated Sounding System.
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<p></p>
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</li>
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<li>
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The Cooperative Program for Operation Meteorology, Education, and Training
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(COMET), a program of UCAR, has created an extensive archive of meteorological
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case studies that contain observed and gridded data in netCDF. The netCDF
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definition in use was created by the Forecast Systems Laboratory (FSL), a
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NOAA agency, and files in this format are required for capatability with their
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PC-DARE workstations which are used in the COMET teaching classroom. COMET
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plans to create future case studies using the netCDF conventions currently
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being developed by a working group of Unidata, COMET, and FSL personnel.
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<p></p>
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</li>
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<li>
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<p>
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Climate data are archived at several of the NOAA Regional Climate Centers
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(RCCs) usuig netCDF files. The netCDF software provides rapid access to
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time-series data and is at the core of a newly developed distributed data
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access system that will be employed at all of the NOAA RCCs and will be
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linked to the NOAA Virtual Data System (NVDS).
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</p>
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</li>
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<li>
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The Earth Scan Lab, an HRPT ground station at Coastal Studies Institute,
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is using both the Terascan TDF as well as the netCDF for ease of data exhange
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of AVHRR, TOVS and DCS data. Further, in conjunction with Woods Hole, Scripps
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and Texas A&M, CSI will be maintaining all oceanographic data in netCDF.
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<p></p>
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</li>
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<li>
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DataHub from JPL, with funding from AISRP/NASA identifies and converts between
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a variety of data format, CDF, HDF, MMM/netCDF, FITS, PDS, ... Work is under
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way to support conversion from a variety of NASA data formats to netCDF used
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by the PolyPaint+ visualization system from NCAR's MMM division. (JPL
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Contact for DataHub: Tom Handley, thandley@spacemouse.jpl.nasa.gov)
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<p></p>
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</li>
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<li>
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A major component of the US Climate and Global Change program is the TOGA-TAO
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Array in the tropical Pacific, which proposes to maintain approximately 70
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moored ATLAS wind and thermistor chain and current meter buoys, spanning the
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Pacific ocean from 95W to 137E in the equatorial wave guide. The TAO Project
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Office, at PMEL, has developed distribution and display software for the real-time
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data from the TAO buoys, in a point-and-click UNIX workstation environment.
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This software is distributed nationally and internationally. All data is stored
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and distributed in netCDF format. All graphics displays and animations are
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produced with the EPIC tools for working with netCDF data files.
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<p></p>
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</li>
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<li>
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The Woods Hole Field Center of the U.S.G.S. Marine and Coastal Geology Program
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uses netCDF to access a variety of scientific data sets, including output
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from circulation and sediment tranport models, sonar imagery, digital elevation
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models, and environmental sensor data. They also make available the <a
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href="http://crusty.er.usgs.gov/~cdenham/MexCDF/nc4ml5.html">NetCDF Toolbox for
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Matlab-5</a>
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<p></p>
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</li>
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<li>
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At the Woods Hole Oceanographic Institution, netCDF is used in several areas.
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Ships in the UNOLS fleet are recording measurements from the IMET systems
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in netCDF form. These data include wind, barometer, humidity, air and sea
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temperature, precipitation, short wave radiation, and GPS navigation. Data
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sets from these systems taken during the WOCE experiments in the Pacific have
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been archived recently at NCAR. Also, measurements from a diverse set of instruments
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deployed on buoys for the Subduction, TOGA/COARE, and several other experiments
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are translated into netCDF form for processing and archival. Reports that
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describe the software systems used for these processing activities are available
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from WHOI.
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<p></p>
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</li>
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<li>
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Scripps Institution of Oceanography (SIO) and the University Corporation
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for Atmospheric Research (UCAR) conducted a multi-platform climate field project
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during March of 1994 based in Nadi, Fiji. All data from this experiment will
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be archived using Unidata's netCDF before release to the scientific community.
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<p></p>
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</li>
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<li>
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The Oregon State University Oceanographic <a
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href="http://lubber.oce.orst.edu/Wecoma/WecomaHome.html">Research Vessel WECOMA</a>
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uses the netCDF library for primary scientific data logging. This includes
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navigational, meteorological, and other miscellaneous data. This logging is
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part of a client/server system for data distribution, display, and management
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known as XMIDAS.
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<p></p>
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</li>
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<li>
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NOAA's <a href="http://www.fsl.noaa.gov/">Forecast System Laboratory</a>
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has adopted netCDF as a data access interface for some of their systems and
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applications.
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<p></p>
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</li>
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<li>
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The <a href="http://www.its.csiro.au/">CSIRO</a> Division of Atmospheric
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Research in Australia uses netCDF to store all their GCM and ocean model results.
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<p></p>
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</li>
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<li>
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The Cabauw Experimental Site for Atmospheric Research (<a
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href="http://www.cesar-database.nl/" >Cesar</a>) is
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a consortium of presently eight institutes and universities located
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in the Netherlands. The goal of the consortium is to operate and
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maintain at the Cabauw site a unique observational facility with a
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comprehensive set of remote sensing and in-situ equipment to
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characterize the state of the atmosphere, its radiative properties
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and the interaction with the land surface. All the data are stored
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in netCDF formatted files and comply with the CF-1.4 convention.
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<p></p>
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</li>
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<li>
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Meteorological data from satellites is stored in netCDF form at CIRES (Cooperative
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Institute for Research in the Environmental Sciences) and several data analysis
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packages have been written to display and analyze the netCDF data.
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<p></p>
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</li>
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<li>
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A general purpose finite element data model (referred to as EXODUS II) utilizing
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netCDF has been developed at Sandia National Laboratories. It consists of
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a C and FORTRAN application programming interface (API) to read and write
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geometry and results (including time varying data) for finite element analyses.
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For more information, contact Larry Schoof (laschoo@somnet.sandia.gov).
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<p></p>
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</li>
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<li>
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<a href="http://www.aero.polimi.it/~mbdyn/" >MBDyn</a> is an
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open-source Multi-body dynamics analysis system that
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uses netCDF as its output format. MBDyn features the integrated
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multidisciplinary analysis of multibody, multiphysics systems,
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including nonlinear mechanics of rigid and flexible constrained
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bodies, smart materials, electric networks, active control,
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hydraulic networks, essential fixed-wing and rotorcraft
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aerodynamics.
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<p></p>
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</li>
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<li>
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NetCDF is the vehicle adopted by the Analytical Instrument Association [AIA]
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to implement the Analytical Data Interchange Protocols [Andi Protocols] for
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chromatography [released in 1992] and mass spectrometry [released in 1994].
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The Andi
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Protocols increase laboratory efficiency and productivity
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by facilitating the integration and use of data from multiple vendors'
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products. For more information about the Andi chromatography protocols, see
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the article <a
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href="http://pubs.acs.org/hotartcl/tcaw/98/may/stan.html">"Standards for
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Chromatography Data Systems: ASTM adopts protocols for analytical data interchange
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(Andi)"</a> from May 1998 issue of the American Chemical Society publication <i>Today's Chemist at Work</i> The resulting standard specifications and
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guides may be downloaded from <a
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href="http://www.astm.org/">ASTM</a>:
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<ul>
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<li>
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<a
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href="http://www.astm.org/cgi-bin/SoftCart.exe/DATABASE.CART/PAGES/E1947.htm?L+mystore+rpwd2606"> E1947-98 Standard Specification for Analytical Data Interchange Protocol for
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Chromatographic Data</a>
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</li>
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<li>
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<a
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href="http://www.astm.org/cgi-bin/SoftCart.exe/DATABASE.CART/PAGES/E1948.htm?L+mystore+rpwd2606"> E1948-98 Standard Guide for Analytical Data Interchange Protocol for Chromatographic
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Data</a>
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</li>
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<li>
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<a
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href="http://www.astm.org/cgi-bin/SoftCart.exe/DATABASE.CART/REDLINE_PAGES/E2077.htm?L+mystore+uvlt1856" > E2077-00 Standard Specification for Analytical Data Interchange
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Protocol for Mass Spectrometric Data</a>
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</li>
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</ul>
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Further development related to these standards now seems to be under the purview of
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|
an ASTM subcommittee E13.15 on analytical Data Management, at the
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Source Forge site <a href="http://andi.sourceforge.net/"
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|
>http://andi.sourceforge.net/</a>. <p></p>
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</li>
|
|
<li>
|
|
The Positron Imaging Laboratories and the Neuro-Imaging Laboratory of the
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Montreal Neurological Institute have selected netCDF as the data format for
|
|
their medical image files. Conventions for variable and attribute names and
|
|
values have been established for the medical imaging context. These conventions,
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|
along with a package of routines to assist in handling image data, make up
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|
the MINC (Medical Image NetCDF) format. For more information, contact Peter
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|
Neelin (neelin@pet.mni.mcgill.ca) or see <a href="http://www.bic.mni.mcgill.ca/software/minc/" > http://www.bic.mni.mcgill.ca/software/minc/</a>. <p></p>
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</li>
|
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<li>
|
|
In the field of molecular dynamics and the simulation of
|
|
biomolecules, <a
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|
href="http://amber.scripps.edu/formats.html#netcdf" >netCDF
|
|
conventions</a> are now used
|
|
for storing and accessing trajectory files associated
|
|
with the <a href="http://amber.scripps.edu/index.html" >AMBER
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|
project</a>. <p></p>
|
|
</li>
|
|
<li>
|
|
In computational biology, specifically flow cytometry, netCDF/HDF5
|
|
format has been used in new OpenCyto software. See
|
|
Finak G, Frelinger J, Jiang W, Newell EW, Ramey J, et al. (2014) OpenCyto: An Open Source Infrastructure for Scalable, Robust, Reproducible, and
|
|
Automated, End-to-End Flow Cytometry Data Analysis. PLoS Comput Biol 10(8): e1003806. doi:10.1371/journal.pcbi.1003806.
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|
<p></p>
|
|
</li>
|
|
<li>
|
|
At the Federal Waterways Engineering and Research Institute (<a href="http://www.baw.de/EN/Home/home_node.html">BAW</a>),
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netCDF is used in several ways. In combination with the <a href="https://github.com/ugrid-conventions/ugrid-conventions">UGRID conventions</a>
|
|
computational results from different hydrodynamic numerical models are stored for unstructured grids,
|
|
e.g. water level, current velocity, and salinity. NetCDF is also used to store derived quantities
|
|
like tidal high and low water, tidal range and many other similar characteristic numbers. In addition,
|
|
measured data (tide gauge data, ADCP) are also stored in netCDF files based on NOAA's
|
|
<a href="http://www.nodc.noaa.gov/data/formats/netcdf/v1.1/">NODC NetCDF templates</a>.<p></p>
|
|
</li>
|
|
<li>
|
|
<a href="http://www.dlr.de/">The German Aerospace Agency (DLR)</a>, located in Munich, are using netcdf-4 / CF
|
|
standards for the provision of L2 data for S5p mission including L2
|
|
products such as Sulfur Dioxide, Ozone, Formaldehyde and Clouds
|
|
(<a href="https://en.wikipedia.org/wiki/Sentinel-5_Precursor">https://en.wikipedia.org/wiki/Sentinel-5_Precursor</a> or
|
|
<a href="https://sentinel.esa.int/web/sentinel/missions/sentinel-5p">https://sentinel.esa.int/web/sentinel/missions/sentinel-5p</a>).
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|
</li>
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|
</ul>
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