NSIDC develops a variety of tools for viewing and analyzing data. These tools are copyrighted by the University of Colorado and licensed under the GNU General Public License. Please contact NSIDC User Services for more information.
Analysis Tools
Analysis tools help users extract and read data from a variety of formats, display data within packages such as Research System's IDL, or assist in the geolocation of gridded products. For more information or to download a tool, click on the tool's name in the table below.
| Tool Name | Description |
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| NSIDC created this site to answer common questions about HDF-EOS and to provide simple methods for working with the HDF-EOS format. |
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Use this suite of software tools to subset and grid L1B and L2A AMSR-E swath data. These tools make it easy to process data into custom grids with any temporal or spatial resolution. When you download the software, you get AS2GT as part of a larger package that also allows you to work with some forms of SSM/I and SMMR data. |
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NSIDC offers a series of Application Programming Interfaces (APIs) that allow programmers to build NSIDC data and metadata services into their applications. |
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Tools include IDL routines and map projections for geolocation and conversion tools to use with EASE-Grid data sets. |
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This set of software tools reads HDF-EOS files containing MODIS swath data and produces flat binary files containing gridded data in a variety of map projections. MS2GT consists of three Perl programs that make calls to several standalone IDL and C programs. |
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Search for and receive certain Version 5 (V005) MODIS data products over the Greenland Climate Network (GC-Net) and the International Arctic Systems for Observing the Atmosphere (IASOA) stations. MIST also provides limited online analysis capabilities that include generating time series and scatter plots. |
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This interface has two modes. One mode opens, geolocates, and visualizes multiple swath or grid products in separate but dynamically linked windows. Another mode allows users to examine individual bits from data fields. (Users must have IDL 5.6 installed to run EOS-IT.) |
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IMCORR software uses two images and input parameters and matches small sub-scenes from the two images. |
Imaging Tools
These imaging tools are small applications that NSIDC programmers created for internal use and are made available to NSIDC's user community. These tools form the building blocks of many of the other tools that we provide. These tools are not related to particular data sets, and can be used in other programs. For more information or to download a tool, click on the tool's name in the table below.
| Tool Name | Description |
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An IDL Catalyst Library application that can be used to display select data sets available from NSIDC. Developed by NSIDC Science Programmer David Fanning. |
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| An IDL Catalyst Library program that can be used to interactively visualize and create Grid Parameter Definition (GPD) files. The resulting GPD files can be used by other software at NSIDC to reproject different types of satellite data. Developed by NSIDC Science Programmer David Fanning. |
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An object-oriented geographic coordinate transformation library available in both C and Java. |
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A Java package for doing spherical trigonometry. It includes a Java implementation of the backtrack orbit search algorithm. |
