>From: Unidata User Support <address@hidden> >Organization: Unidata Program Center/UCAR >Keywords: 200401202253.i0KMrAp2021098 McIDAS PLAX Hi, Does anybody know of a McIDAS utility or program that can calculate the satellite viewing angles and sun angles to pixels of an AREA satellite image, and export these (such as AXFORM exports Lat/Long parameters) ? This information would be most useful in radiative transfer calculations, so it seems like a natural thing for a McIDAS user to have developed. Any information would be most appreciated! Cheers, Tom >Date: Mon, 26 Jan 2004 09:36:55 -0600 >From: Rick Kohrs <address@hidden> Tom, You can calculate satellite viewing angles for GVAR satellites using the nv* routines. Inquiry 12359 has some example code in the action section and you can look at the following link from the programmers manual: http://www.ssec.wisc.edu/mug/prog_man/Current/access-6.html These routines only work for native GVAR projections. The angle calculations are not available for remapped data, including METEOSAT data (which is also remapped). Rick
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