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Hi Rod,
re:
> Like what I am saying is the .ALT(Latitude) and .ALN (Longitude)
>
> .ALT read from top to bottom
>
> First column first row------) some number A for instance
>
> Now for .ALN reading from left to right
>
> Fist column first row----) some number B for instance
>
> so coordinates would be (A,B) for the 1st row or column bright count value?
Correct.
re:
> First column second row------) some number C for instance
>
> Now for .ALN reading from left to right
>
> Fist column second row----) some number D for instance
>
> so coordinates would be (C,D) for the 2nd row or column bright count value?
Correct.
re:
> And so on if that makes sense?
Draw a grid of dots and assign location values to the lattice points:
col 1 col 2 col 3 ...
row 1 37.14N,95.07W 37.14N,95.02W 37.14N,94.96W ...
row 2 37.09N,95.07W 37.09N,95.02W 37.09N,94.96W ...
row 3 37.05N,95.07W 37.05N,95.02W 37.05N,94.96W ...
.
.
.
row last 22.27N,95.07W 22.27N,95.02W 22.27N,94.96W ...
NB: these locations are invariant for all of your study days
because the IMGREMAP projection and size used in EFFRAD3.BAT is fixed.
Draw a second grid and assign brightness values to the lattice points
(these values are from 2720111955):
col 1 col 2 col 3 ...
row 1 9 8 7 ...
row 2 14 14 15 ...
row 3 15 10 15 ...
.
.
.
row last 0 0 0 ...
This is a tabular depiction of:
brit(37.14N,95.07W) = 9
brit(37.14N,95.02W) = 8
brit(37.14N,94.96W) = 7
...
brit(37.09N,95.07W) = 14
brit(37.09N,95.02W) = 14
brit(37.09N,94.96W) = 15
...
brit(37.05N,95.07W) = 15
brit(37.05N,95.02W) = 10
brit(37.05N,94.96W) = 15
...
brit(22.27N,95.07W) = 0
brit(22.27N,95.02W) = 0
brit(22.27N,94.96W) = 0
How this needs to be formulated for use in GrADS is not something
I can comment on since I am not a GrADS user. It should be
straightforward, however.
Cheers,
Tom
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Ticket Details
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Ticket ID: CTJ-586885
Department: Support McIDAS
Priority: Normal
Status: Closed