[IDV #VRB-317344]: Conversion of infrared data to temperature

Greetings Ben!

> Greetings back at you Sean,
> 
> First, thank you very much for continuing to work this problem.  I really 
> appreciate it.
> 
> Reinstalling the OS, eh?  That seems a little scary to me.... never done it, 
> but I could give it a try.  The new machine is running Snow Leopard, not 
> Lion.  I suppose that the result would be the same.  Do you agree?

I would think it would be the same, but I'm not sure. At the very least, I'd 
check out what, if anything, lives in ~/Library/Java/Extensions

> 
> In the short term, I'm limping along on the older machine, running IDV2.7.2 
> on Snow Leopard.  I've got a big report due in about a week and can't afford 
> to have anything go weird on my machine until that deadline's passed, so I'm 
> going to wait until that's done before considering reinstalling the OS.  Hope 
> you understand.

Best wishes on that report! Have you tried updating to the latest IDV on your 
old machine (3.0U2)? Since the IDV uses your system Java, installing the new 
version won't hurt anything, and the performance will likely only get better 
with the newest release (there have been a lot of major memory improvements / 
bug fixes since 2.7.2).

> 
> Another thought.  This machine also runs Windows XP on Parallels on my new 
> machine.  Maybe I could try to run IDV on there if your solution doesn't work 
> out on my new machine?
> 

I have not tried the IDV on Parallels, but it's worth a shot - again, it 
wouldn't hurt anything to give it a try (well, except the 10-15 minutes to fire 
up the VM, install the IDV and see how it goes). Sometimes the 3D performance 
on a VM can be lacking, but I've heard good things about Parallels. If you give 
it a shot, please let me know how it turns out!

Cheers!

Sean

> Thanks again,
> 
> Ben
> 
> On May 20, 2012, at 2:01 PM, Unidata IDV Support wrote:
> 
> > Greetings Ben!
> >
> > I was finally able to get the IDV going again on my machine (still getting 
> > CGContextGetCTM and CGContextSetBaseCTM error, but they *seem* harmless at 
> > this point). It took two steps. First, I had to reinstall the OS. On Lion, 
> > I was able to just reinstall the System files without the need to reinstall 
> > all of my personal stuff (OS restore by holding command+r on restart and 
> > following the onscreen prompts). I also found an old copy of Java 3D (newly 
> > installed - I guess from a recent update?) in my home directory in 
> > ~/Library/Java/Extensions - I actually removed all of the stuff in there 
> > and, in combination with the OS reinstall (to completely refresh the java 
> > JRE), I was up and running again. Maybe check in ~/Library/Java/Extension 
> > to see if there are java3d jars and see what happens if you removed them?
> >
> > Cheers,
> >
> > Sean
> >
> >> IDV2.7.2 at least starts up on the old machine.
> >>
> >> On May 18, 2012, at 10:54, "Unidata IDV Support" <address@hidden> wrote:
> >>
> >>> Unfortunately, not yet. I spent a good chunk of time yesterday trying to 
> >>> get things worked out on my machine, and I was unable to make progress. 
> >>> We tested a mac that hadn't been updated in a while and the IDV worked 
> >>> fine...we updated it, and the IDV spit out some warnings, but still ran. 
> >>> It looks this does not affect every Mac. I've found a few things online 
> >>> regarding this kind of error, and it looks like its affecting more than 
> >>> just the IDV and Java3d based applications. I'm hoping Apple will address 
> >>> this soon!
> >>>
> >>> Do you have access to another machine? I hate to say it, but that may be 
> >>> the best bet for now.
> >>>
> >>> Sean
> >>>
> >>>> Hi Sean,
> >>>>
> >>>> Any thoughts on these IDV & McV issues?
> >>>>
> >>>> Ben
> >>>>
> >>>> -------
> >>>> Ben C. Bernstein
> >>>> Leading Edge Atmospherics, LLC
> >>>> 720-771-3324 (cell)
> >>>> http://icingweather.com
> >>>>
> >>>> On May 17, 2012, at 8:34 AM, Unidata IDV Support wrote:
> >>>>
> >>>>> Greetings Ben,
> >>>>>
> >>>>> I downloaded McV and could not get it to run on my system either (OSX 
> >>>>> 10.7.4, Java 1.6.0_31). When I try to run from the command line, I get 
> >>>>> errors like this:
> >>>>>
> >>>>> May 17 08:28:06 micromac java[5507] <Error>: CGContextGetCTM: invalid 
> >>>>> context 0x0
> >>>>> May 17 08:28:06 micromac java[5507] <Error>: CGContextSetBaseCTM: 
> >>>>> invalid context 0x0
> >>>>>
> >>>>> and McV freezes at the "Loading Defaults" screen. When I run the IDV, I 
> >>>>> get the same kinds of errors on the command line, but it still starts 
> >>>>> up...except the Display screen is missing! I'm getting Java3D errors, 
> >>>>> which is preventing the IDV display from popping up. After digging 
> >>>>> around a bit, it seems as though a recent Mac update has 'killed' 
> >>>>> Java3D applications (it's a bigger problem than the IDV or McV). I'm 
> >>>>> still digging around to see if there is a solution to this.
> >>>>>
> >>>>> Sean
> >>>>>
> >>>>>> Hi Sean,
> >>>>>>
> >>>>>> I'm running 1.6.0.29
> >>>>>>
> >>>>>> I have an ADDE account with SSEC now, but can't seem to get IDV to 
> >>>>>> talk that account when I tried it a few times yesterday.  Figured that 
> >>>>>> I'm doing something wrong... never tried this approach before.
> >>>>>>
> >>>>>> Do you think that I should re-install McV or might Java be the issue?
> >>>>>>
> >>>>>> Thanks again,
> >>>>>>
> >>>>>> Ben
> >>>>>>
> >>>>>> On May 17, 2012, at 6:49 AM, Unidata IDV Support wrote:
> >>>>>>
> >>>>>>> Hi Ben,
> >>>>>>>
> >>>>>>> Which version of Java are you using (from the command line: java 
> >>>>>>> -version)? Also, McV is pretty much IDV with some additions, so if 
> >>>>>>> IDV runs, than McV should run.
> >>>>>>>
> >>>>>>> The reason I suggest McV is because it comes bundled with the ADDE 
> >>>>>>> server, which does the calculations on the raw files to convert them 
> >>>>>>> into things like IR brightness temperatures. When you access 
> >>>>>>> satellite data through the IDV satellite chooser, you connect to a 
> >>>>>>> remote ADDE server. Then, when you select a product to view, the ADDE 
> >>>>>>> server will do the necessary calculations before sending you the data 
> >>>>>>> to view. When reading the raw data off of disk, you need a local ADDE 
> >>>>>>> server to active the same functionality, which is why McV bundles the 
> >>>>>>> ADDE server. I think page two of this pdf explains how to do this in 
> >>>>>>> McV:
> >>>>>>>
> >>>>>>> http://www.ssec.wisc.edu/mcidas/software/v/docs/SatelliteImagery1.01.pdf
> >>>>>>>
> >>>>>>> Cheers!
> >>>>>>>
> >>>>>>> Sean
> >>>>>>>
> >>>>>>>> Hi Sean,
> >>>>>>>>
> >>>>>>>> When I go to run McV, it launches then freezes every time.  I had a 
> >>>>>>>> fairly old version on this machine, so I downloaded the latest 
> >>>>>>>> version and it does exactly the same thing.  Perhaps uninstalling 
> >>>>>>>> McV and reinstalling from scratch would help?
> >>>>>>>>
> >>>>>>>> Why do you feed that McV is the way to go for this case?
> >>>>>>>>
> >>>>>>>> Thanks,
> >>>>>>>>
> >>>>>>>> Ben
> >>>>>>>>
> >>>>>>>> On May 16, 2012, at 4:54 PM, Unidata IDV Support wrote:
> >>>>>>>>
> >>>>>>>>> Greetings Ben,
> >>>>>>>>>
> >>>>>>>>> McV is the way to go for this case. What kind of issues were you 
> >>>>>>>>> having getting McV to run? I ask because many of the machines at 
> >>>>>>>>> SSEC are Macs running Snow Leopard, so it's odd that it won't work 
> >>>>>>>>> for you.
> >>>>>>>>>
> >>>>>>>>> Cheers,
> >>>>>>>>>
> >>>>>>>>> Sean
> >>>>>>>>>
> >>>>>>>>>> Hello,
> >>>>>>>>>>
> >>>>>>>>>> I have downloaded some GOES-13 imager AREA files from NCDC's CLASS 
> >>>>>>>>>> site,
> >>>>>>>>>> trying to get a look at the visible and especially the IR images 
> >>>>>>>>>> for a
> >>>>>>>>>> couple of days in November 2010.
> >>>>>>>>>>
> >>>>>>>>>> Using the IDV, I am able to read and plot these fields, but the 
> >>>>>>>>>> data
> >>>>>>>>>> are raw.  I can deal with this for vis imagery because it's still 
> >>>>>>>>>> possible
> >>>>>>>>>> to look at the images and get a feel for how bright they are.  
> >>>>>>>>>> However,
> >>>>>>>>>> I want to try to view the actual temperatures from the long-wave 
> >>>>>>>>>> IR and
> >>>>>>>>>> don't know how to do that when all I have are the raw value for 
> >>>>>>>>>> channel 4.
> >>>>>>>>>>
> >>>>>>>>>> NOAA's website
> >>>>>>>>>>
> >>>>>>>>>> http://www.oso.noaa.gov/goes/goes-calibration/gvar-conversion.htm
> >>>>>>>>>>
> >>>>>>>>>> provides equations for converting the raw values to temperatures, 
> >>>>>>>>>> but
> >>>>>>>>>> how can I apply such equations in IDV so that I can 
> >>>>>>>>>> calculate/convert
> >>>>>>>>>> from the raw ch-4 values to temperatures then display them?
> >>>>>>>>>>
> >>>>>>>>>> If an alternative data source or method of plotting would be a 
> >>>>>>>>>> better
> >>>>>>>>>> choice than the CLASS/IDV combination that I've chose, please let 
> >>>>>>>>>> me know.
> >>>>>>>>>> As a backup, I tried to use McIDAS-V for this task, but can't even 
> >>>>>>>>>> get
> >>>>>>>>>> the software to run on my machine (Mac OSX10.6.8).
> >>>>>>>>>>
> >>>>>>>>>> Perhaps GINI data could work?  I haven't been able to find a good 
> >>>>>>>>>> archive
> >>>>>>>>>> of that, though.
> >>>>>>>>>>
> >>>>>>>>>> Any help would be appreciated.
> >>>>>>>>>>
> >>>>>>>>>> Many thanks,
> >>>>>>>>>>
> >>>>>>>>>> Ben Bernstein
> >>>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>> Ticket Details
> >>>>>>>>> ===================
> >>>>>>>>> Ticket ID: VRB-317344
> >>>>>>>>> Department: Support IDV
> >>>>>>>>> Priority: Normal
> >>>>>>>>> Status: Open
> >>>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> Ticket Details
> >>>>>>> ===================
> >>>>>>> Ticket ID: VRB-317344
> >>>>>>> Department: Support IDV
> >>>>>>> Priority: Normal
> >>>>>>> Status: Open
> >>>>>>>
> >>>>>>
> >>>>>>
> >>>>>
> >>>>>
> >>>>> Ticket Details
> >>>>> ===================
> >>>>> Ticket ID: VRB-317344
> >>>>> Department: Support IDV
> >>>>> Priority: Normal
> >>>>> Status: Open
> >>>>>
> >>>>
> >>>>
> >>>>
> >>>
> >>>
> >>> Ticket Details
> >>> ===================
> >>> Ticket ID: VRB-317344
> >>> Department: Support IDV
> >>> Priority: Normal
> >>> Status: Open
> >>>
> >>
> >>
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: VRB-317344
> > Department: Support IDV
> > Priority: Normal
> > Status: Open
> >
> 
> 


Ticket Details
===================
Ticket ID: VRB-317344
Department: Support IDV
Priority: Normal
Status: Open