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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
Hi Rod, re: > I did this: > > IMGDISP G13/IR27APR11.5 1 LAT=30:00 86:30 EU=IMAGE SF=YES MAG=1 > > Beginning Image Data transfer, bytes= 184288 > IMGDISP: loaded frame 1 > IMGDISP: done > EU: Restoring IMAGE.ET to frame(s)= 1 > EU: Done > > MAP LALO COUNTY=ALL STATE=MS AL GA MCOL=8 > MAP: Completed frame 1 > > MAP FILE=OUTVHPOL MCOL=1 > MAP: Completed frame 1 > > SATANGLES DEV=T angles.out > > But doesnt work even with the original image why? Am I doing something > wrong? I just ran the same set of commands: IMGDISP G13/IR27APR11.5 1 LAT=30:00 86:30 EU=IMAGE SF=YES MAG=1 MAP LALO COUNTY=ALL STATE=MS AL GA MCOL=8 MAP FILE=OUTVHPOL MCOL=1 SATANGLES DEV=T angles.out and the file $MCDATA/angles.out was created without problems. Here are some things to remember: - you need to move the cursor over the point you are interested in - because of the DEV=T keyword, you will not see output from SATANGLES echoed back to the Command and Text window - you can view the output file created using the SEE command in McIDAS: SEE angles.out Or, you can see the contents of the output file from your Linux terminal window: cat $MCDATA/angles.out re: > Also I dont know if the equation I sent you from Dan Lindsey > got through you or not? Yes, I got the message. Yesterday I played around with using PRDUTIL to calibrate one of the effective radius images, but I ran into an unexpected snag. Here is the snag at the first step: PRDUTIL ADD G13/ERAD27APR11.1 1 PROD 1095783 515872 0 255 ERAD 10000 -2139062144 PRDUTIL: Source area must be type PRD PRDUTIL failed, RC=2 What this was telling me is that the dataset to be worked on must be stored in files that follow the AREA file naming convention. I sort of expected this, so I was not thwarted by this for very long. Here is what I did to work around the problem: From the Linux command line: cd $MCDATA cp /mnt/hgfs/McIDAS-X/workdata/GOES-EastEffectiveRadius/2011117171500_effrad.area AREA2000 From a McIDAS session: PRDUTIL ADD LOC/AREAS.2000 1 PROD -1095783 515872 0 255 ERAD 10000 -2139062144 Image file directory listing for:LOC/AREAS Pos Satellite/ Date Time Center Res (km) Image_Size sensor Lat Lon Lat Lon --- ------------- ------------ -------- ---- ---- ----- ----- ------------ 2000 G-13 IMG 27 APR 11117 17:15:00 35 87 Band: 1 0.63 um VIS Cloud and Surface Features 5.56 2.46 600 x 1400 proj: 0 created: 2011180 222034 memo: RT GVAR type:PRD cal type:BRIT offsets: data= 3328 navigation= 256 calibration= 2816 auxiliary= 0 doc length: 0 cal length: 0 lev length: 0 PREFIX= 0 valcod: 0 zcor: 0 avg-smp: N start yyddd: 2011117 start time:171521 start scan: 406 lcor: 3361 ecor: 10733 bytes per pixel: 1 ss:180 Resolution Factors (base=1): Line= 4.0 Element= 4.0 IMGLIST: done Current Calibration Block Segments In File: Output Input Product Product Brit Brit Num Type low high low high Units Scale Missing Val --- ---- -------- -------- ----- ----- ----- ----- ----------- 1: PROD -1095783 515872 0 255 ERAD 10000 -2139062144 Comment: - I store the images you made available to me on a "remote" file system: /mnt/hgfs/ I stored the images in /mnt/hgfs/McIDAS-X/workdata/GOES-xxxxxx directories: GOES-xxxxxx: GOES-EastVisible - the VIS images GOES-EastIR - the IR images GOES-EastEffectiveRadius - the effective radius images Of course, this does not match your setup at all, so you would have to change your procedure to the following: From the Linux command line: cd $MCDATA cp archive/27apr2011/2011117171500_effrad.area AREA2000 From a McIDAS session: PRDUTIL ADD LOC/AREAS.2000 1 PROD -1095783 515872 0 255 ERAD 10000 -2139062144 The second snag, which I have not figured out yet, is this added calibration is causing problems with an IMGPROB probe of the image: SF 1 IMGDISP MYDATA/IMAGES.2000 IMGPROBE LIST POINT MODE=N IMGPROBE: Units requested are not available for this image IMGPROBE: Unable to setup search conditions IMGPROBE: Done IMGPROBE failed, RC=1 Again, this failure is totally unexpected and will cause me to do some digging in the server code to find out what is going on. 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: RDQ-637778 Department: Support McIDAS Priority: Normal Status: Closed