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Re: NPP Chooser

Posted: Mon Jan 30, 2012 8:21 pm
by bobc
The NPP (National Polar-orbiting Operational Environmental Satellite System Preparatory Project) satellite has changed its name to the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite. This data is now coming in, and can be displayed in McIDAS-V 1.01.

One location for this data is on SSEC’s peate server:

Note that you must have the geolocation and data files for each granule in the same directory for the data file to be listed in the Data Sources tab of the Data Explorer. You can display individual or multiple granules at full resolution by subsetting the data in the Region tab of the Field Selector. You can subset a region within the granule with Shift+click and drag.

For more information about the satellite’s mission details, instruments, and more, please visit:

Re: NPP Chooser

Posted: Fri Jun 21, 2013 4:19 pm
by bobc
NPP update with the release of McIDAS-V version 1.3:

The ‘Imagery – Suomi NPP’ chooser is listed under the Under Development tree in the Data Sources tab in the Data Explorer. This chooser is designed to work with Suomi NPP (National Polar-orbiting Partnership) data from CLASS and SSEC’s peate server.

In order to use this chooser, you must have both the NPP data file and its associated geolocation data in the same directory. This may be in the form of two separate files, or the geolocation may be included in the same file as the data. Once you navigate to the directory where your files are stored, all NPP files with valid geolocation will be listed out in the Data Sources tab of the Data Explorer. You can select to add individual granules, or you can use Shift+click to select several consecutive granules that will be aggregated together into one image.

Once you are in the Field Selector, select your desired field and the Image Display display type. In the Region tab of the Field Selector, you will see a preview image of where your data will display. If you wish to display your data in full resolution, you must subset a region in the Region tab using Shift+click. If you do not subset a region, the data will be displayed at a reduced resolution.

There are a couple formulas unique to this Suomi NPP data that can be added as a plugin through the Plugin Manager. In the Plugin Manager under the Miscellaneous tree, there is a plugin called VIIRS Formulas. Once you add this plugin and restart your session, there will be two new formulas listed out in the Field Selector. The swath-to-grid formula removes the bowtie deletion effect if you subset a region in the Field Selector when using the formula. There is also a 3-Color RGB formula designed to work with this Suomi NPP data that will create an RGB image while removing the bowtie deletion at the same time. The recommended bands to use with this formula are SVM05, SVM04, and SVM03 to create a natural-color RGB.

There is also the ability to work with various VIIRS cloud mask data in McIDAS-V. If you add a file such as GMODO-IICMO*, there are various quality flags included with the data. McIDAS-V will see what quality flag fields are included with the data, and from these quality flags, McIDAS-V will provide a variety of cloud mask fields. In the Fields panel of the Field Selector, you may see various cloud mask fields such as ‘Cloud Phase’, ‘Volcanic Ash’, ‘Dust’, ‘Fire’, etc. This data can be displayed with the Image Display display type.

With the release of 1.3, the saving of both zipped and unzipped bundles containing NPP data is now supported. Note that zipped bundles may be very large dependent on the amount of data as well as the resolution of the data you are saving.

Please note that this chooser is still under development. We are in the process of integrating the ability to use different Suomi NPP products in McIDAS-V. Any feedback as far as enhancement ideas and bug reports are appreciated.

- Bob Carp
McIDAS User Services

Re: NPP Chooser

Posted: Tue Oct 29, 2013 1:43 pm
by mug_admin
Please note that this forum post has been closed to further replies. For further developments concerning the Suomi NPP chooser, please see the new forum post entitled Suomi NPP Chooser – 1.4.

Thanks -
McIDAS User Services