[nws-changes] WSR 88d beta testFwd: ADMIN NOTICE NOUS41 KWBC

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• Subject: [nws-changes] WSR 88d beta testFwd: ADMIN NOTICE NOUS41 KWBC
• From: Linda Miller <lmiller@xxxxxxxxxxxxxxxx>
• Date: Sun, 04 Nov 2012 10:56:30 -0700

-------- Original Message --------

606
NOUS41 KWBC 011831
PNSWSH

Technical Implementation Notice 12-53
National Weather Service Headquarters Washington DC
232 PM EDT Thu Nov 1 2012

To:         Subscribers
            -Family of Services
            -NOAA Weather Wire Service
            -Emergency Managers Weather Information Network
            -NOAAPORT
            Other NWS Partners and Employees

From:       Richard J. Vogt
            Director, WSR-88D Radar Operations Center

Subject:    WSR-88D Build 13.1 Beta Test and Deployment
            Started October 29, 2012

The NEXRAD Program started a Beta Test of Radar Data
Acquisition/Radar Product Generator (RDA/RPG) Build 13.1 the week
of October 29, 2012 at Wichita, KS (KICT). The Build 13.1 Beta
Test will also be conducted at the following three sites:

SITE                       APPROXIMATE
                           START DATE
______________________     ___________
Vance AFB, OK (KVNX)       13 November
Yuma, AZ (KYUX)            27 November
South Kauai, HI (PHKI)      4 December

A summary of the major changes in Build 13.1 follows:

1. Re-implements the Automated Volume Scan Evaluation and
Termination (AVSET) and improved Clutter Mitigation Decision
(CMD) algorithms at FAA and NWS (redundant RDA) WSR-88Ds where
the Dual Polarization modification has been completed. AVSET
terminates the current volume scan after the radar has scanned
all elevations with significant reflectivity returns resulting in
lower elevations scanned more frequently. The improved CMD
algorithm (Dual Polarization variables added) better identifies
ground clutter for removal by radar filters.

2. Implements the 2-Dimensional Velocity Dealiasing Algorithm
(2DVDA). This new algorithm increases the area of properly
dealiased velocity data and reduces the number of false
mesocyclone detections by the Mesocyclone Detection Algorithm.
Additional 2DVDA information is available at:

http://www.roc.noaa.gov/WSR88D/NewRadarTechnology/NewTechDefault.
aspx

3. Implements the RPG software required to add the remaining
eight Air Force WSR-88D Level 2 data streams to the Level 2 Data
Collection Network. Routers also need to be installed.  The NWS
will release more specific 2013 turn-on dates for these data
flows by the end of this year.

If you have questions or comments, please contact:

     Tim Crum
     WSR-88D Radar Operations Center
     Tim.D.Crum@xxxxxxxx

  http://www.weather.gov/os/notif.htm