This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Dana, GEMPAK cannot reproject satellite imagery. It can only display and sector in the projection of the data. The UNIWISC IDD data is in the native satellite projection, while the NIMAGE GINI data is in remapped lambert confromal projection over the CONUS, so that is the projection that the image will be shown in. The FNEXRAD grib data can be overlaid on a satellite image from gdplot2 in the satellite projection such as the lambert mentioned above, as one possibility. Otherwise to remap an image into another projection, you'd need to go through McIDAS. Steve Chiswell >From: Dana Price <address@hidden> >Organization: UCAR/Unidata >Keywords: 200409241800.i8OI0mnJ005275 >Is there any way to flatten a satellite projection (by default wrapped >to the hemisphere) made with gpmap? I'd like to overlay it with some >national fnexrad plots (also created with gpmap, same garea and proj as >the satellite) using ImageMagick, but I'd like to keep a flat projection >on both. > >Thanks! >Dana > >-- >----------------------------------------------------------- >Dana Price <address@hidden> >Systems Administrator Voice: 732-932-5833 >Rutgers, The State University Fax: 732-932-8644 >Department of Environmental Sciences >Center for Environmental Prediction >----------------------------------------------------------- > -- NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.