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Hi Rod, re: what are the times of the two images? > They are the same time 20:25. Hmm... re: > Weird???? Right? I think so, but it depends on what the effective radius image is really telling us. Question: - how do the GR2 and 10.7 um IR images compare side by side for 20:25? > REM > REM First, erase everyting in frame 1 > REM > > ERASE F 1 3 > > IMGCOPY G13/IR27APR11 LOC/AREAS.3003 TIME=20:25 LAT=30:00 86:30 SIZE=320 320 > PRO=MERC RES=6 Questions: - does LOC/AREAS.3003 already exist when you run this? If yes, try deleting the file first: LWU DEL AREA3003 IMGCOPY G13/IR27APR11 LOC/AREAS.3003 TIME=20:25 LAT=30:00 86:30 SIZE=320 320 PRO=MERC RES=6 - What happens if you change PRO=MERC to PRO=RECT? What stuck me just now is the effective radius image looks like it is in the original satellite projection which means that the PRO=MERC RES=6 keywords had no effect. re: > IMGDISP LOC/AREAS.3003 1 LAT=30:00 86:30 EU=IMAGE > MAP STATE=MS AL GA COUNTY=ALL MCOL=8 > MAP FILE=OUTVHPOL MCOL=1 So, you have the IR image; how does it compare to the GR2 one? re: > IMGCOPY LOC/AREAS.3003 LOC/AREAS.3103 SIZE=SAME > IMGREMAP G13/ERAD27APR11 LOC/AREAS.3103 TIME=20:25 > IMGLIST LOC/AREAS.3003 FORM=ALL > IMGCHA LOC/AREAS.3103 SS=180 STYPE=VISR > IMGDISP LOC/AREAS.3103 2 LAT=30:00 86:30 EU=CLW3 > MAP LALO -2 INT=5 5 STATE=MS AL GA COUNTY=ALL MCOL=8 > MAP FILE=OUTVHPOL MCOL=1 OK, this is the effective radius image that you are comparing to the GR2 one? re: > IMGFILT LOC/AREAS.3003 LOC/AREAS.3103 LOC/AREAS.3203 FILTER=DIS 0 255 185 255 > 0 > IMGDISP LOC/AREAS.3103 3 LAT=30:00 86:30 EU=CLW3 SF=YES > MAP LALO -2 INT=5 5 STATE=MS AL GA COUNTY=ALL MCOL=8 > MAP FILE=OUTVHPOL MCOL=1 Or, is it this image that you are comparing to the GR2 one? re: > IMGPROBE LIST POINT MODE=N LATLON=34.689243 88.234695 > IMGPROBE LIST POINT MODE=N LATLON=34.685452 87.354070 > IMGPROBE LIST POINT MODE=N LATLON=34.177437 88.247765 > IMGPROBE LIST POINT MODE=N LATLON=34.179134 87.397865 > IMGPROBE STAT BOX OUTLINE=YES COLOR=2 MODE=N LINELE=61 121 F PLACE=ULEFT > SIZE=11 28 EXCLUDE=0 1-184 These are irrelevant for the current discussion... Cheers, Tom -- **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: WIM-982947 Department: Support McIDAS Priority: Normal Status: Closed