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NSIDC develops a variety of Data Tools for viewing
and analyzing data as well as Development Tools
to support software development.
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.
Data 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 |
| Hierarchical Data Format - Earth Observing System (HDF-EOS) |
NSIDC created this site to answer common questions about HDF-EOS and to provide simple
methods for working with the HDF-EOS format. |
| AMSR-E Swath to Grid Toolkit (AS2GT) |
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. |
| EASE-Grid Geolocation Tools |
Tools include IDL routines and map projections for geolocation and
conversion tools to use with EASE-Grid data sets. |
| MODIS Swath-to-Grid Toolbox (MS2GT) |
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. |
| HDF-EOS Imaging Tool (EOS IT) |
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.) |
| IMCORR Software |
IMCORR software uses two images and input parameters and matches small
sub-scenes from the two images. |
These development tools are small applications that NSIDC programmers created
for internal use and are making 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 |
| JazPanel |
A Java applet that can specify geographic area of interest as
part of an HTML forms interface. |
| Mapx |
An object-oriented geographic coordinate transformation library available
in both C and Java. |
| Spheres |
A Java package for doing spherical trigonometry. It includes a Java implementation
of the backtrack orbit search algorithm. |
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