19991101: latitude/longitude standardization-ADMIN NOTICE NOUS41 KWBC (fwd)

017 
NOUS41 KWBC 011340
PNSWSH
  
PUBLIC INFO. STATEMENT...TECHNICAL IMPLEMENTATION NOTICE 00-01
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
830 AM EST MON NOV 1 1999
  
TO:       NATIONAL WEATHER SERVICE EMPLOYEES...FAMILY OF SERVICES
           SUBSCRIBERS...FEDERAL AVIATION ADMINISTRATION
           EMPLOYEES...AND OTHER NWS CUSTOMERS
  
FROM:     THERESE Z. PIERCE
           CHIEF-INTEGRATED HYDROMETEOROLOGICAL SERVICES CORE
           NWS OFFICE OF METEOROLOGY
  
SUBJECT:  STANDARDIZATION OF LATITUDE AND LONGITUDE REFERENCES IN
           AVIATION TEXT PRODUCTS ISSUED BY U.S. METEOROLOGICAL
           WATCH OFFICES AND VOLCANIC ASH ADVISORY
           CENTERS...EFFECTIVE JANUARY 3 2000 AT 0000 UTC
  
THERE IS CURRENTLY NO STANDARD FOR INDICATING LATITUDE AND
LONGITUDE POINTS IN AVIATION PRODUCTS WHEN RESOLUTION FINER THAN
A WHOLE DEGREE IS REFERENCED.  THE INTERNATIONAL CIVIL AVIATION
ORGANIZATION AND THE WORLD METEOROLOGICAL ORGANIZATION GIVE
EXAMPLES WHICH ARE IN EITHER DEGREES AND MINUTES OF A DEGREE OR
IN DEGREES AND DECIMALS OF A DEGREE.  TO BE CONSISTENT WITH
FLIGHT PLANNING AND MANAGEMENT SYSTEMS...CUSTOMERS HAVE REQUESTED
THAT REFERENCES BE TO DEGREES AND MINUTES OF A DEGREE.
  
BEGINNING MONDAY..JANUARY 3 2000 AT 0000 UTC...ALL REFERENCES TO
LATITUDE AND LONGITUDE IN SIGMETS...AREA FORECASTS...AND VOLCANIC
ASH ADVISORY STATEMENTS SHALL BE EITHER IN WHOLE DEGREES...OR IF
FINER RESOLUTION IS REQUIRED...IN DEGREES AND MINUTES OF A
DEGREE.
  
EXAMPLES:
  
RESOLUTION OF A WHOLE DEGREE:
A REFERENCE TO 20 DEGREES NORTH LATITUDE AND 74 DEGREES WEST
LONGITUDE SHALL BE CODED AS...20N74W.
  
RESOLUTION FINER THAN A WHOLE DEGREE:
A REFERENCE TO 20 DEGREES 6 MINUTES NORTH LATITUDE AND 74 DEGREES
30 MINUTES WEST LONGITUDE SHALL BE CODED AS...2006N7430W.
  
IF YOU HAVE ANY QUESTIONS CONCERNING INFORMATION CONTAINED IN
THIS MESSAGE...CONTACT
  
      RICHARD STONE
      (301) 713-1726 Ext. 153
      E-MAIL: RICHARD.STONE /AT SIGN/ NOAA.GOV
  
THIS AND OTHER NOTIFICATIONS ARE ON THE INTERNET AT
WWW.NWS.NOAA/GOV/OM/NOTIF.HTM /LOWER CASE/
  
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