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20011220: McIDAS: CIRA Enhancement tables in McIDAS .ET format
- Subject: 20011220: McIDAS: CIRA Enhancement tables in McIDAS .ET format
- Date: Thu, 20 Dec 2001 10:21:07 -0700
>From: Unidata User Support
>Organization: UCAR/Unidata
>Keywords: 200106201031.f5KAVv116018 McIDAS ehancements
Brian,
Way back at the MUG meeting, we talked about me getting access to McIDAS
versions of the enhancement tables discussed in:
http://www.cira.colostate.edu/ramm/visit/istpds/awips/lookup.html
Yesterday, I cut and pasted the "How to create this enhancement in
AWIPS" from each of the types disucssed in links from the above page.
I successfully created most of the enhancements, and they look like the
displays shown (good thing). I did run into a couple of problems, so I
am writing for help!
First, a minor point. I see no difference in the enhancement listing
for 'IR (channel 4) (9)' and 'IR (channel 5) (10)'. Am I seeing things
incorrectly, or is this actually the case?
Second, the enhancement I produce using the information for 'WV/IR'
does not end up looking like the one used in the example display. In
particular, the specification:
Temperature (C) Red Grn Blu Red Grn Blu
end of scale to -35.0 1 1 1 253 253 253
-35.0 to -38.0 255 235 80 216 196 80
-39.0 to -45.0 196 177 80 82 81 80
-46.0 to -52.0 103 81 80 210 81 80
-53.0 to -61.0 255 81 233 102 81 102
-62.0 to -69.0 80 100 102 80 255 255
-70.0 to -72.0 80 216 80 82 82 82
-79.0 to -86.0 125 125 125 255 255 255
-87.0 to -90.0 80 80 226 80 80 139
-91.0 to -109.0 81 81 81 199 199 199
would seem to display the gray scale portions of the WV/IR composite in
gray shades varying from black to nearly pure white. The example
image, however, does not show this range of gray scale values. My
question is why not? Am I missing something here? (I am using the
correct B to T conversion for GINI WV: T = 263 - 0.196 * B).
Given this mismatch between the enhancement I create using the listed
values and the displayed image, I am now uncertain abou the other color
enhancements I created from the examples (although most look like the
displays).
Do you have enhancements in McIDAS .ET form for these that I could grab
and compare to mine?
Also, has CIRA coined "standard" .ET names for any/all of the
enhancements referred to in the above web page? If so, I would like to
adopt them so my users will not get thrown by name inconsistencies.
FYI, I am intending to include all of the enhancements referenced in
the web link above in my next McIDAS addendum, and I desperately want
to get this out by tomorrow afternoon.
Any sage advice you can provide and especially access to McIDAS .ET
enhancements you can give me access to would be _greatly_ appreciated.
Tom