[nws-changes] 20100212: Dual Pol comments

• To: nws-changes@xxxxxxxxxxxxxxxx
• Subject: [nws-changes] 20100212: Dual Pol comments
• From: Linda Miller <lmiller@xxxxxxxxxxxxxxxx>
• Date: Fri, 12 Feb 2010 09:46:38 -0700

OUS41 KWBC 121515
PNSWSH

PUBLIC INFORMATION STATEMENT... COMMENT REQUEST
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
1015 AM EST FRI FEB 12 2010

TO:      SUBSCRIBERS
        -FAMILY OF SERVICES

        -NOAAPORT
        -OTHER USERS AND NWS EMPLOYEES

FROM:    RICHARD J. VOGT
        DIRECTOR... WSR-88D RADAR OPERATIONS CENTER

SUBJECT: SOLICITING COMMENTS BY MARCH 19 2010 ON PLANS TO
        ADD DUAL POLARIZATION WSR-88D PRODUCTS TO SBN/NOAAPORT
        AND RPCCDS: EFFECTIVE WITH WSR-88D DUAL POLARIZATION
        /NOVEMBER 2010 BETA TEST/

NWS HAS DEVELOPED PROPOSED OPERATIONAL REQUIREMENTS TO DISTRIBUTE
DUAL POLARIZATION WEATHER SURVEILLANCE RADAR-1988... DOPPLER
/WSR-88D/ PRODUCTS VIA SATELLITE BROADCAST NETWORK /SBN/...
NOAAPORT AND RADAR PRODUCT CENTRAL COLLECTION DISSEMINATION
SERVICE /RPCCDS/.

NWS IS REQUESTING COMMENTS THROUGH MARCH 19 2010 ON THE
PROPOSED REQUIREMENTS AND IMPLEMENTATION PLAN. SEND COMMENTS TO:

TIM.D.CRUM@xxxxxxxx
MICHAEL.ISTOK@xxxxxxxx.

IF THE PROPOSED CHANGE IS APPROVED... WE ANTICIPATE IMPLEMENTATION
IN THE NOVEMBER 2010 TIMEFRAME. TABLE 1 CONTAINS THE LIST OF DUAL
POLARIZATION RADAR PRODUCTS PROPOSED TO BE DISTRIBUTED VIA THE
RPCCDS AND SBN/NOAAPORT. THIS DISSEMINATION WILL BEGIN WITH BETA
TESTING OF THE FIRST DUAL POLARIZATION WSR-88D SITE. OTHER BETA
TEST SITES WILL BE ADDED AS THEY ARE MODIFIED. DURING THIS TEST
PERIOD... NWS WILL EVALUATE COMMUNICATIONS LOADING FOR IMPACTS
AND DECIDE WHETHER TO DISSEMINATE DUAL POLARIZATION PRODUCTS
FROM ADDITIONAL SITES MODIFIED DURING FULL SCALE DEPLOYMENT.

TABLE 1:  WMO HEADINGS FOR WSR-88D RADAR PRODUCT ADDITIONS

#  TTUSII NNN PRODUCT DESCRIPTION                        DIRECTORY
1 SDUS8I N0X DIFFERENTIAL REFLECTIVITY 159/DZD 0.5DEG   DS.159X0
2 SDUS8I NAX DIFFERENTIAL REFLECTIVITY 159/DZD 0.9DEG   DS.159XA
3 SDUS8I N1X DIFFERENTIAL REFLECTIVITY 159/DZD 1.5DEG   DS.159X1
4 SDUS8I NBX DIFFERENTIAL REFLECTIVITY 159/DZD 1.8DEG   DS.159XB
5 SDUS8I N2X DIFFERENTIAL REFLECTIVITY 159/DZD 2.4DEG   DS.159X2
6 SDUS8I N3X DIFFERENTIAL REFLECTIVITY 159/DZD 3.4DEG   DS.159X3
7 SDUS8I N0C CORRELATION COEFFICIENT 161/DCC 0.5DEG     DS.161C0
8 SDUS8I NAC CORRELATION COEFFICIENT 161/DCC 0.9DEG     DS.161CA
9 SDUS8I N1C CORRELATION COEFFICIENT 161/DCC 1.5DEG     DS.161C1
10 SDUS8I NBC CORRELATION COEFFICIENT 161/DCC 1.8DEG     DS.161CB
11 SDUS8I N2C CORRELATION COEFFICIENT 161/DCC 2.4DEG     DS.161C2
12 SDUS8I N3C CORRELATION COEFFICIENT 161/DCC 3.4DEG     DS.161C3
13 SDUS8I N0K SPECIFIC DIFFERENTIAL PHASE 163/DKD 0.5DEG DS.163K0
14 SDUS8I NAK SPECIFIC DIFFERENTIAL PHASE 163/DKD 0.9DEG DS.163KA
15 SDUS8I N1K SPECIFIC DIFFERENTIAL PHASE 163/DKD 1.5DEG DS.163K1
16 SDUS8I NBK SPECIFIC DIFFERENTIAL PHASE 163/DKD 1.8DEG DS.163KB
17 SDUS8I N2K SPECIFIC DIFFERENTIAL PHASE 163/DKD 2.4DEG DS.163K2
18 SDUS8I N3K SPECIFIC DIFFERENTIAL PHASE 163/DKD 3.4DEG DS.163K3
19 SDUS8I N0H HYDROMETEOR CLASSIFICATION 165/DHC 0.5DEG  DS.165H0
20 SDUS8I NAH HYDROMETEOR CLASSIFICATION 165/DHC 0.9DEG  DS.165HA
21 SDUS8I N1H HYDROMETEOR CLASSIFICATION 165/DHC 1.5DEG  DS.165H1
22 SDUS8I NBH HYDROMETEOR CLASSIFICATION 165/DHC 1.8DEG  DS.165HB
23 SDUS8I N2H HYDROMETEOR CLASSIFICATION 165/DHC 2.4DEG  DS.165H2
24 SDUS8I N3H HYDROMETEOR CLASSIFICATION 165/DHC 3.4DEG  DS.165H3
25 SDUS8I N0M MELTING LAYER 166/ML 0.5DEG                DS.166M0
26 SDUS8I NAM MELTING LAYER 166/ML 0.9DEG                DS.166MA
27 SDUS8I N1M MELTING LAYER 166/ML 1.5DEG                DS.166M1
28 SDUS8I NBM MELTING LAYER 166/ML 1.8DEG                DS.166MB
29 SDUS8I N2M MELTING LAYER 166/ML 2.4DEG                DS.166M2
30 SDUS8I N3M MELTING LAYER 166/ML 3.4DEG                DS.166M3
31 SDUS8I DPR INSTANTANEOUS PRECIPATION RATE 176/DPR     DS.176PR
32 SDUS8I HHC HYBRID SCAN HYDROMETEOR CLASSIFIC. 177/HHC DS.177HH
33 SDUS8I OHA ONE HOUR ACCUMULATION 169/OHA              DS.169OH
34 SDUS8I DAA DIGITAL ACCUMULATION ARRAY 170/DAA         DS.170AA
35 SDUS3I PTA STORM TOTAL ACCUMULATION 171/STA           DS.171ST
36 SDUS8I DTA DIGITAL STORM TOTAL ACCUMULATION 172/DSA   DS.172DT
37 SDUS8I DU3 3 HOUR ACCUMULATION 173/DUA                DS.173U1
38 SDUS8I DU6 24 HOUR ACCUMULATION 173/DUA               DS.173U3
39 SDUS8I DOD DIGITAL ONE HOUR DIFFERENCE 175/DOD        DS.174OD
40 SDUS8I DSD DIGITAL STORM TOTAL DIFFERENCE 175/DSD     DS.175SD

IF THE ADDITION OF THESE PRODUCTS CAUSES AN OPERATIONAL IMPACT TO
NOAAPORT... THE FALLBACK PLAN IS TO DISTRIBUTE DUAL POLARIZATION
PRODUCTS ONLY VIA RPCCDS... WHICH WOULD BE DONE BY FILTERING SDUS8I
PRODUCTS FROM THE NOAAPORT UPLINK. THIS FALLBACK
PLAN REQUIRES EXCLUSIVE USE OF SDUS8I FOR DUAL POLARIZATION.
CURRENTLY THE DIGITAL PRECIPITATION ARRAY PRODUCT /DPA/ HAS THE
FOLLOWING HEADING: SDUS8I. CONSEQUENTLY THE PRODUCT IN TABLE 2
WILL BE CHANGED NATIONALLY TO SDUS5I BEFORE BEGINNING DISSEMINATION
OF DUAL POLARIZATION PRODUCTS.

TABLE 2: REASSIGNED WMO HEADINGS FOR WSR-88D AND TDWR SPG PRODUCT

TTUSII  NNN PRODUCT DESCRIPTION                         DIRECTORY
SDUS5I  DPA HOURLY DIGITAL PRECIPITATION ARRAY 81/DPA   DS.81DPR

WHEN FULLY IMPLEMENTED THE NOAAPORT AND RPCCDS COMMUNICATIONS
THROUGHPUT OF WSR-88D PRODUCTS WILL INCREASE BY A FACTOR OF 2.8
ABOVE WHAT WILL BE REACHED AFTER COMPLETING PRODUCT ADDITIONS
DESCRIBED IN TECHNICAL IMPLEMENATION NOTICE 09-41. FOR EACH
WSR-88D... THE AVERAGE HOURLY PRODUCT VOLUME VIA RPCCDS WILL BE
APPROXIMATELY 14.5 MEGABYTES /MB/ AND THE AVERAGE DAILY VOLUME
WILL BE 345.8 MB. WHEN FULLY IMPLEMENTED THE AVERAGE DAILY
VOLUME FOR ALL WSR-88D RADARS WILL BE 53.9 GIGABYTES /GB/. WORST
CASE HOURLY THROUGHPUT IS ESTIMATED TO REACH 48 MB FOR A SINGLE
RADAR AND 4.2 GB FOR ALL 200 RADARS /155 WSR-88D AND 45 TDWR/.
ON NOAAPORT... PRODUCTS ARE FURTHER COMPRESSED AND THEREFORE
THROUGHPUT WILL BE REDUCED SOMEWHAT.

ON THE TELECOMMUNICATIONS OPERATIONS CENTER /TOC/ FTP SERVER...
RADAR PRODUCTS WILL BE PLACED IN THE PRODUCT NAMED SUBDIRECTORY
LISTED IN TABLE 1 BELOW THE FOLLOWING DIRECTORY:

 FTP://TGFTP.NWS.NOAA.GOV/SL.US008001/DF.OF/DC.RADAR/

NWS HAS ESTABLISHED THE FOLLOWING WEBSITE TO PROVIDE PLANS AND
STATUS FOR THE DUAL POLARIZATION PROJECT... ADDITIONAL
INFORMATION AND FOR PREVIEWING SAMPLE PRODUCTS:

 HTTP://WWW.ROC.NOAA.GOV/WSR88D/DUALPOL/DEFAULT.ASPX

THE CONTENT AND FORMATS OF THE DUAL POLARIZATION PRODUCTS ARE
DESCRIBED IN THE DRAFT PRODUCT SPECIFICAITON INTERFACE CONTROL
DOCUMENT /ICD/ AND THE DRAFT ICD FOR RPG TO CLASS 1 USER...
AVAILABLE AT THE DUAL POL WEB SITE ABOVE.

IF YOU HAVE QUESTIONS OR COMMENTS... PLEASE CONTACT:

 TIM CRUM
 WSR-88D RADAR OPERATIONS CENTER
 1200 WESTHEIMER DRIVE
 NORMAN... OK 73069
 TIM.D.CRUM@xxxxxxxx
OR
 MIKE ISTOK
 NWS... OFFICE OF SCIENCE AND TECHNOLOGY
 SILVER SPRING... MARYLAND
 MICHAEL.ISTOK@xxxxxxxx

IF YOU HAVE QUESTIONS ABOUT THE NOAAPORT ACTIVATION OR DATA FLOW

THE CENTRALLY COLLECTED WSR-88D PRODUCTS WILL BE ARCHIVED AT THE
NATIONAL CLIMATIC DATA CENTER /NCDC/ AND WILL BE AVAILABLE FOR
DOWNLOAD FROM:

 HTTP://HURRICANE.NCDC.NOAA.GOV/PLS/PLHAS/HAS.DSSELECT.

NATIONAL PUBLIC INFORMATION STATEMENTS ARE AVAILABLE ONLINE AT:

    HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM

$$
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