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

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