[IDV #SLG-471030]: Repeat Elevation Angles Remote Level II Radar Data

> Hi:
> 
> Some thoughts ...
> 
> It looks like the sites transmitting super-resolution data will have the 
> repeat 0.5, 0.9, 1.3 depending on the VCP.
> 
> Sites transmitting legacy data will not have the repeat elevation angles.
> 
> Sites that are transmitting recombined data I get the following error message:
> 
> There was an error loading the data ...
> java.lang.NullPointerException

You are right. We have not upgraded our library to deal with the recombined 
data, it is on the way and you can download the new nightly build in a couple 
days.

> 
> Also with the multiple scans at the same elevation angle does this affect 
> RHI; isosurface; volume scan; etc displays?

We only use the first scans for v all 3D display, includeing RHI.
> 
> The reason for the original message was that I have never seen multiple 
> elevation angles in level II data either from IDV (Level II remote) or 
> obtained from the NWS and displayed using IDV.

Yes, the multiple elevation is only being applying in the super resolution or 
recombine level 2 data. Let me know if you need any help.

Thanks,

Yuan 
> 
> Thanks for listening ...
> 
> Have a good weekend ....
> 
> Greg ...
> 
> -----Original Message-----
> From: Unidata IDV Support [mailto:address@hidden]
> Sent: Fri 6/20/2008 4:18 PM
> To: Salottolo Greg
> Cc: address@hidden
> Subject: [IDV #SLG-471030]: Repeat Elevation Angles Remote Level II Radar Data
> 
> > Good Morning:
> >
> > Looking at PAH remote Level II data for this AM (see jpeg file). Displayed 
> > Base Reflectivity 0.5 degree elevation data. Left side first 0.5 degree 
> > elevation angle in field selector window for Reflectivity and right side 
> > second 0.5 degree elevation angle in field selector window for 
> > Reflectivity. More echo is showing in the first image. Not sure why 
> > different displays for the same elevation angle. The 2 instances of the 0.5 
> > degree (also the 1.5 degrees) elevation angle do not show up in the Radial 
> > Velocity and Spectrum Width field selector window.
> >
> > Current VCP for PAH was 21 ... From ...
> >
> > http://www.roc.noaa.gov/ops/vcp.asp
> >
> >
> > Any help on this is appreciated.
> >
> >
> > Greg ...
> >
> Greg,
> There are many formal explanation of the radar VCPs, you can browse on the 
> web to get the detail information. I can only give a brief summary here. 
> First, the VCP for each radar station  is changed according to the weather 
> condition. If the VCP for radar site PAH is 21, which means the precipitation 
> mode. For some parameters at some levels, a radar may run more than one sweep 
> according to the weather condition, such as two full sweeps at 0.5 for the 
> reflectivity and only one sweep for the doppler velocity, and may even 
> collect both parameters in the same sweep. And because of the difference in 
> the time of each sweep, the signal in the same elevation can be difference. 
> The design of each VCP is based on the requirements of meteorologist to 
> analyze the structure of the weather system.
> 
> 
> Yuan
> >
> >
> > -----Original Message-----
> > From: Unidata IDV Support [mailto:address@hidden]
> > Sent: Thursday, June 19, 2008 5:34 PM
> > To: Salottolo Greg
> > Cc: address@hidden
> > Subject: [IDV #SLG-471030]: Repeat Elevation Angles Remote Level II
> > Radar Data
> >
> >
> > >
> > >
> > > >  -----Original Message-----
> > > > From:   Salottolo Greg
> > > > Sent:   Thursday, June 19, 2008 4:06 PM
> > > > To:     'Unidata IDV Support'
> > > > Subject:        Repeat Elevation Angles Remote Level II Radar Data
> > > >
> > > > Good Afternoon:
> > > >
> > > > Using remote level II chooser getting repeat level II elevation angles 
> > > > (see image). 2.5 vista ..
> > > >
> > > > New VCP Coverage Patterns 211, 212, 221 ...?
> >
> > Scalottolo,
> > This is VCP 212. And it is super resolution Nexrad data file.
> >
> > > >
> > > > By the way the Cursor Readout Window is very useful with radar data.
> > > >
> > > > Thanks ...
> > > >
> > > > Greg ...
> > > >
> > > >
> > > > >  <<level2_repeat_ele_ang.jpg>>
> > > >
> > > Also getting this error ...
> >
> > Well, another new format, AR2V0004, believe it or not, it is new to me too. 
> > I just found out yesterday that this new format is coming and today it is 
> > actually in our distributing system IDD. I will need to make some changes 
> > to this new format.
> >
> > Yuan
> > >
> > > > >  <<level2.jpg>>
> > >
> > >
> > >
> > >
> > > >  -----Original Message-----
> > > > From:   Salottolo Greg
> > > > Sent:   Thursday, June 19, 2008 4:06 PM
> > > > To:     'Unidata IDV Support'
> > > > Subject:        Repeat Elevation Angles Remote Level II Radar Data
> > > >
> > > > Good Afternoon:
> > > >
> > > > Using remote level II chooser getting repeat level II elevation angles 
> > > > (see image). 2.5 vista ..
> > > >
> > > > New VCP Coverage Patterns 211, 212, 221 ...?
> > > >
> > > > By the way the Cursor Readout Window is very useful with radar data.
> > > >
> > > > Thanks ...
> > > >
> > > > Greg ...
> > > >
> > > >
> > > > >  <<level2_repeat_ele_ang.jpg>>
> > > >
> > > Also getting this error ...
> > >
> > > > >  <<level2.jpg>>
> > >
> > >
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: SLG-471030
> > Department: Support IDV
> > Priority: Normal
> > Status: Open
> >
> >
> 
> 
> Ticket Details
> ===================
> Ticket ID: SLG-471030
> Department: Support IDV
> Priority: Normal
> Status: Open
> 
> 
> 


Ticket Details
===================
Ticket ID: SLG-471030
Department: Support IDV
Priority: Normal
Status: Open