Welcome to the NSIDC GISMO. Version 2.5 for SNODAS was released in May, 2005.

If you are unfamiliar with the GISMO please read the help.

If you have not previously used GISMO v2.5 please read the release notes.

The GISMO uses Java2 which requires the java plugin on most browsers. If you don't have the java plugin you can install it now.

Note: The GISMO does not work with the Java plugin version 1.4. GISMO does work with the plugin version 1.3 or lower, and version 1.5.

The GISMO is a large client that may take some time to download, depending on your connection speed.