[McIDAS #USW-595984]: 20200416: GLM imagery / McIDAS / CoD processing

Hi Mike,

re:
> There is a slight change in "shape" if I understand your usage correctly,
> that's what I meant with some small differences in extent.  I'm attaching
> two samples of FED, one from the VLAB L3 set (made on the VM) and one from
> the TTU set (made in production); you can see that region in real time
> here:
> https://weather.cod.edu/satrad/?parms=regional-southeast-02-24-0-100-1&checked=map-glm_fed&colorbar=undefined
> 
> NB: Ignore the bad date on the VLAB sample.  That's a result of my
> scripting that I haven't fully converted over yet, not at all McIDAS
> related.

I would expect a change in extent/shape of features when comparing the
L2 TTU products with L3 Vlab products since the L3 Vlab products have greater
accumulations of values over time than the L2 TTU products.  A more
apples-to-apples comparison might be of an L2 TTU product with an L2 Vlab
product of the same time.  Then again, there is also the possibility that
the Vlab products are not corrected for parallax.  I'll need to ask
Tiffany if she knows.

re:
> I vaguely recall parallax corrections being one of the differences in the
> new data set.  But looking back at some old emails I can't find anything to
> back that up.  But that's my hypothesis that I want to test.

Eric made a point about his TTU products being parallax corrected.

re:
> Tell Eric and others I say hi!

I don't know if I will get to see Eric before he leaves tomorrow evening.
Unlike the Usercomm meetings, general staff is not invited to SAC meetings.

re: we'll know more after getting some comparative samples.

> Nor do I, at least not yet.  I'll try to get some answers before the
> weekend.

Sounds good.  I have to run now to get to ThAC :-)

Cheers,

Tom
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Ticket Details
===================
Ticket ID: USW-595984
Department: Support McIDAS
Priority: Normal
Status: Closed
===================
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