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Unidata Software
Unidata develops, maintains, and supports a variety of software packages. Some of these packages are developed at the Unidata Program Center (UPC), while others originated externally, but are modified, maintained, and supported at the UPC. Software provided by Unidata is available at no charge, but there are conditions on accessing or obtaining support for some packages.
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Display and Analysis
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GEMPAK
GEMPAK is an analysis, display, and product generation package for meteorological data. It is used at National Centers for producing operational forecast and analysis products. more >
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Integrated Data Viewer (IDV)
Developed using Java, VisAD and other component libraries, the IDV is a meteorologically oriented, platform-independent application for visualization and analysis. more >
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McIDAS-X
McIDAS is a meteorologically oriented analysis and display package, that emphasizes comprehensive capabilities for image processing of data from satellite-borne sensor systems, and that supports ADDE client/server access to remote data. more >
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Data Access and Management
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Decoders: GRIB, BUFR and Surface/Upperair
The GRIB Java and the BUFR Java Decoders used the stored raw data files and decode the data as requested. The perl and c decoders decode the data into netCDF files as it arrives and doesn't store the raw data files because the raw data is not in a usable format.
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Local Data Manager (LDM)
The LDM is Unix software for capturing, disseminating, and organizing data in near-real time; and includes client and server software for the IDD system. more >
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LDM-McIDAS Decoders
LDM-McIDAS Decoders are used to decode image products into McIDAS- and GEMPAK-readable formats, and wind profiler and lightning data into McIDAS-readable formats. more >
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libcf
Libcf assists in the creation and reading of data which conforms to the Climate and Forecast (CF) Conventions. more >
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netCDF
netCDF is used for storing and retrieving scientific data in self-describing, platform-independent datasets; enhanced by udunits, a library for handling and converting units of measure. more >
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netCDF Java Library
The netCDF Java Library is a Java interface to netCDF files. It is built on the MultiArray (version 2) package, which is a stand-alone Java package for multidimensional arrays of primitive types. more >
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Common Data Model (CDM)
Currently implemented by the netCDF Java library, Unidata's Common Data Model (CDM) is an abstract data model for scientific datasets. It can read OPeNDAP, netCDF, HDF5, GRIB 1 and 2, BUFR, HDF4, HDF-EOS, NEXRAD, GINI, GEMPAK fomatted files, and more.
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netCDF Perl
netCDF Perl is a perl extension module for scientific data access via the netCDF API. more >
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OPeNDAP/DODS
OPeNDAP has developed a software framework that simplifies all aspects of scientific data networking, allowing simple access to remote data. more >
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THREDDS
THREDDS is software for cataloging, browsing, and accessing remote data and metadata through THREDDS catalogs. more >
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UDUNITS
UDUNITS supports conversion of unit specifications between formatted and binary forms, arithmetic manipulation of unit specifications, and conversion of values between compatible scales of measurement. more >
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Examples of Display Capabilities
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GEMPAK
GEMPAK can be used to analyze and display geo-referenced and meteorological data. more >
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IDV
The IDV emphasizes interactive 3D visualization and integration of diverse data types. more >
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McIDAS
McIDAS can be used for visualization and manipulation of geophysical data in a wide variety of formats. more >
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Did you know?
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The LDM/IDD delivers geoscience data in near real-time to over 175 domains worldwide. more >
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Unidata's netCDF is used in chromatography, mass spectrometry, neuro-images, and biomolecule trajectory simulations. more >
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OPeNDAP provides software which makes local data accessible to remote locations regardless of local storage format. OPeNDAP also provides tools for transforming existing applications into OPeNDAP clients (i.e., enabling them to remotely access OPeNDAP served data. more >
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The THREDDS Data Server is adding aggregation capabilities to allow large collections of datasets to appear as one, logical dataset. more >
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Provision of Software
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There are conditions on software access & usage for some Unidata software:
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• Provision of Unidata software
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Services available and participation guidelines in the Unidata community:
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• Provision of Unidata software support
• Provision of Unidata data access & usage
• Participation in the Unidata community
• Register as a Unidata user
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