20050513: IDV - Forecast grids

>From: Dave Santek <address@hidden>
>Organization: SSEC
>Keywords: 200505132104.j4DL42P3008906

Hi Dave-

>Thanks!

Found the problem and we are working on a fix.  The grib decoder
was incorrectly decoding the time.  Also, it lumps all the times
in the file into one list, hence the multiple times with no data.

>At this time, I'm able to use a combination of IDV and Vis5D to get what 
>I need to show [I think]. The animations will be nice at some point, but 
>for now I need to have this conveyed on paper...so I'm working with a 
>series of static displays.

Okay.  The fix will be in the June release.

>>>Institution: SSEC
>>>Package Version: 1.2b2
>>>Operating System: os.name:Windows XP; os.arch:x86; os.version:5.1; 
>>>Hardware Information: java.vendor:Sun Microsystems Inc.; java.version:1.4.2_
> 01
>>>; java.home:C:\\Program Files\\IDV_1.2b2\\jre; 
>>>Inquiry: Hi Don,
>>>
>>>Me again!
>>>
>>>As you may recall, I've converted some GRIB files into v5d files. This has w
> or
>>>ked out 
>>>great to this point. But, now I want to look at animated 3d cross sections o
> f 
>>>potential temperature. 
>>>I can't do this with the v5d files, because the IDV doesn't know which field
>  i
>>>s temperature 
>>>in order to derive theta..
>>>
>>>So, I am going back to the original GRIB files. I'm looking at a number of f
> or
>>>ecasts from
>>>one model run time. Each GRIB file is a different forecast. When I try to di
> sp
>>>lay a 3d
>>>cross section from each file, they all appear on the same frame...all labele
> d 
>>>with
>>>the model run time, instead of the forecast valid time. If I could just type
>  a
>>>lt-A and
>>>advance to another frame to display the cross sections at different forecast
>  t
>>>imes!
>>>
>>>Also, when I've loaded a forecast grib file, the Select Times field has 2 ti
> me
>>>s in it: the
>>>model run time and a forecast valid time. Two strange things about the forec
> as
>>>t valid
>>>time:
>>>(a) if I select this time, no grids are found to display
>>>(b) the time listed does not correspond to the forecast time
>>>
>>>If I look at a 12 hour forecast grid, the Select Time lists it as a 6 hour f
> or
>>>ecast.

Don Murray
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