>From: Darren Gallant <address@hidden> >Organization: UCAR/JOSS >Keywords: 200207111918.g6BJIGa29261 McIDAS AREA calibation Darren, Thanks for the explanation of what you are trying to accomplish. It will help me search for the information you need. >Here is my issue: SSEC and CSU 4km visible imagery differs from the >imagery ingested by our Seaspace system. Differences between IR and WV are >nearly zero. I'm trying to determine why the visible imagery differs. The >documentation implies that there are processing procedures performed at >Wallops (normalization for example) and that the space calibration is not >performed, but the coeffcients used in this calibration are >coded into the GVAR transmission. I believe this is the information copied >into the CSU/SSEC areafiles (calibration block) during ingest and is >calibration information missing from my areafiles. This is why my images >differ. I'm attempting to verfify this. I can copy image data from >my areafiles and the navigation and calibration info from equivalent >CSU/SSEC area files. The resulting areas should resemble the CSU/SSEC imagery. >This would verify my theory and provide a rough quantification of the >differences between CSU/SSEC 4km and UCAR/JOSS 4km visible imagery. > >Darren >Darren R. Gallant UCAR/JOSS >Programmer/Technician Joint OfFice Of Science Support >303-497-2634 P.O. Box 3000 >address@hidden Boulder,CO 80307-30000 Tom
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