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20030911: Satellite data access query

>From: John Merrill <address@hidden>
>Organization: URI
>Keywords: 200309111406.h8BE6HLd025194 TeraScan image archive

Hi John,

>   I would like to make use of archived satellite data for two distinct 
>purposes, and request guideance and an update.

OK.

>A long while
>ago there was talk of developing a procedure to ingest data in the form 
>archived by JOSS into Gempak - something like this, and I'm
>unsure exactly what. Before you tell me what the status of that effort 
>is, let me say what I'm pursuing, and you may advise me to look
>in a different direction.

See below for the status of the tdf to McIDAS AREA effort.

>  1) I need to characterize convective events for the ACE-Asia period, 
>particularly over areas in China. I've not done this with satellite
>data before, but know that cloud top temperatures can be estimated. I'll 
>want to focus in on locations and time periods goverened by some of the
>aircraft data, but expect to have to look at many events. Perhaps Gempak 
>is not the right tool; I've not used McIdas in years, but if that's
>where you tell me to go, fine.

Go to McIDAS? ;-)  A new oath!

>  2) Over a longer term, I want to use the Split Window technique, 
>primarily on geostationary satellite data, but ultimately not limited 
>this way.

Sounds like McIDAS could be useful to you.

>The NPS crew prepared their "dust product," and I've used their images, 
>but I want to get into the data themselves, myself.

Do you have a reference/link for the NPS products?

>It is possible, I know, that to make real headway I might need to get 
>software from TeraScan. I have no idea how much this costs, and whether
>acquisition or annual licensing fees would be prohibitive - although I 
>did get supplemental funding, and have a few sheckels on hand. Greg
>had bemoaned the support and perhaps other weaknesses of this company, 
>and that's another point where I could use guidance.

>Any comments you may have will be appreciated.

I will leave comments about TeraScan to Greg since JOSS is an active user.

>Thanks.       John

The status from what I know is that Darren Gallant has written some
code that allows conversion of TeraScan-produced HDF output of
calibrated image values (e.g., temperature for IR channels; albedo for
VIS) into McIDAS AREA format.  Greg and/or Darren can fill you in on
details.

Cheers,

Tom