5.0.8 Satellite Imagery - Using Briefing Windows
In addition to displaying loops in the Image Window, you can also create
briefing windows to view saved loops. Each briefing window can display a
frame or loop different from those currently shown in the Image Window or
other briefing windows.
In this exercise, you will display a sequence of GOES-7 visible and
infrared image with the same geographical coverage. You will then
create two briefing frames, so that you can view the images at the
- Erase the graphics in frames 1 and 2.
- Type: ERASE G 1 2
- Display the first GOES-7 4km Visible image area on frame 1,
centering the image on earth coordinates 35° N and 75° W.
Use the SF= keyword to automatically display the frame.
- Type: IMGDISP GV4.1 1 LATLON=35 75 SF=YES
- Display the next two GOES-7 visible images on frames 2 and 3,
centering the images on coordinates 35° N and 75° W.
- Type: IMGDISP GV4.2 2 LATLON=35 75;IMGDISP GV4.3 3 LATLON=35 75
- Display the three GOES-7 infrared images, which begin in
position 4, on frames opposite the GOES-7 visible images. The
repeat factor (3) loads all three images with one IMGDISP command.
You are using the same coordinates, 35° N and 75° W, to
load the images. The repeat factor 3 displays three images in sequence,
on frames 4, 5, and 6.
- Type: IMGDISP GI4.1 OPP LATLON=35 75 REPEAT=3
- Change the dwell rate, set the loop, and loop the images.
You should see the loop of the GOES visible images on frames
1 through 3.
- Type: DR 5
- Type: LS 1-3
- Press: Alt L
- Toggle to the opposite loop to compare the images. Then
stop the loop.
- Press: Alt O
You should see the loop of the GOES-7 infrared images on frames
4 through 6.
- Create a text file that will be used to create briefing frames.
- Save the file BRIEF.SYNC in your $HOME/mcidas/data directory as a text file.
- Create two briefing windows that will have frames 1-3 in one briefing window,
and frames 4-6 in the other briefing window.
- Type: SYNC BRIEF.SYNC
- Close the briefing windows by clicking on the upper-left corner menu bar, and selecting CLOSE from
the window menu.
- Exit McIDAS
- Type: EXIT