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Collection Summary Data documentation is available from the following: AVHRR AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites SSM/I SMMR TOVS Sampler CD-ROM SNODAS |
Introduction
The GISMO (Graphical Interface for Subsetting, Mapping, and Ordering) was designed to allow users to search for gridded data sets by collection, parameter (channel), and date. Additionally, users can specify an area of interest and spatially subset data to reduce the total volume of delivered data. For more information on the capabilities of this interface, it is recommended you read the Help section.
Please note that the GISMO was designed to allow users to order spatial and/or temporal subsets of data. It is not an appropriate tool for ordering entire data sets. If you wish to order a full time series of SSM/I, AVHRR, or TOVS data, please contact NSIDC User Services.
A Collection Summary provides a table of valid ranges for grid sizes, latitude/longitude, and temporal coverage for data sets ordered through GISMO.
Registration
The GISMO requires an initial user registration. This serves two purposes:
Upon registration, you will be given a user name and password, for access to GISMO.
System Requirements
The GISMO requires the Java2 plugin on most browsers. If you don't have the plugin you should be prompted to install it the first time you bring up the GISMO. You need the Java Runtime Environment (JRE) to get the plugin. For Suns and PCs the installation should be fairly straightforward. SGI users running Irix 6.5.6 or earlier will have to install the latest version of java_eoe and java_dev first.
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. Since version 1.3 is no longer supported for most platforms we strongly advise users to upgrade to version 1.5
The GISMO is a large client that may take some time to download. However, once it has downloaded it should run faster. Certain operations may cause a delay, such as retrieving maps, running a search, and/or submitting a request. Therefore we recommend that you run the GISMO on the best platform you have available. We also recommend restarting your web browser before starting GISMO.
