Super-Res 88D Data Available!

Is there any documentation out on how to decode the new NIDS format? I understand there will be changes, and checking the raw files with HEX editor, it really looks like the format would change.
 
Mike has a test version for the new hi-res Level III sites in the owners' forum, and on a related note, Hawaii Level II data is now available!
 
rdale said:
Mike has a test version for the new hi-res Level III sites in the owners' forum, and on a related note, Hawaii Level II data is now available!
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Which thread would that be, Rob? I just finished poring over the GRLevelX forum, and I can't find anything like what you've described in the Level 3 section. Probably staring me right in the hairy eyeball, and my eyeball just can't see it through all that hair.
 
Bob Hartig said:
Which thread would that be, Rob? I just finished poring over the GRLevelX forum, and I can't find anything like what you've described in the Level 3 section. Probably staring me right in the hairy eyeball, and my eyeball just can't see it through all that hair.
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See http://www.grlevelx.com/owners/viewtopic.php?f=5&t=5569&start=75 . Make sure to download that file to your main GRLevel3 directory, otherwise you'll run into an error (e.g. "states.gis not found") that will prevent the program from opening. Then make sure to actually launch that beta program (not any shortcut on the desktop or start menu).
 
Skip Talbot said:
Tarmo, this is from the NWS notice that was posted in this thread:



There is a link at the top of the site where you can request download links to a series of PDF's describing the formats.
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Thanks. The E-mail requesting led me to believe that the documents were not yet available to the public. Checked it out and yes, it is what I was looking for. Many thanks.
 
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GRLevel3 is now updated with the ability to look at the hi-res Level III data.

V1.70 is available for download at the owner's forum. It looks MUCH nicer.

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1) Support for the new high resolution Base Reflectivity (HR-BR) and Base Velocity (HR-BV)
2) Conversion of high res Base Velocity into high resolution Storm Relative Velocity (HR-SRV)
3) Support for Storm Relative Velocity color tables
4) New default reflectivity color table, suitable for the new HR-BR
5) Support for large background images on limited graphics hardware
6) Removed distinction between legacy Storm Total Rainfall and Digital Storm Precipitation
7) Force download of placefile components

The new HR-BR and HR-BV products have several significant improvements over their legacy L3 counterparts:

a) The data value resolution has increased from 16 levels to 256 levels
b) HR-BR's range has increased from 230 to 460 km
c) HR-BV's bins went from 1km down to 250m

These are the equivalent to the legacy Level II versions of these products. Right now, only the Central, Western, and Alaska regions output this high resolution L3 data. In addition, only the lowest tilt of BR and BV are supported in high res.

In order to see HR-SRV, you must have both BV and SRV set to download in GRLevel3.
 
rdale said:
These are the equivalent to the legacy Level II versions of these products. Right now, only the Central, Western, and Alaska regions output this high resolution L3 data. In addition, only the lowest tilt of BR and BV are supported in high res.

In order to see HR-SRV, you must have both BV and SRV set to download in GRLevel3.
Click to expand...


Rob,

I hope this doesn't sound like a dumb question but you are a brainiac when it comes to radar data and I'm not so here goes. If I want to see Hi Res SRV data I understand I have to set both the Base Velocity and Storm Relative Velocity 0.5 tilt options to download, then I'll see Hi Res SRV data for those areas of the country that are currently supported. Do the other tilt options (1.5, 2.5, and 3.5) display Hi Res data for SRV if selected? Thanks so much.

Mark
 
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