MET.TR.115 Meteorological bulletins

DATA TYPES AND CODE FORMS FOR METEOROLOGICAL INFORMATION The data types and code forms applicable to specified meteorological information should be as follows:

(a)ICAO Meteorological Information Exchange Model (IWXXM) GML form;

(b)alphanumeric code form;

(c)abbreviated plain language form;

(d)‘gridded binary’ (GRIB) code form;

(e)‘binary universal form for the representation of meteorological data’ (BUFR) code form;

(f)portable network graphics (PNG) form.

DATA TYPES AND CODE FORMS FOR METEOROLOGICAL INFORMATION The specifications for data types and code forms for meteorological information should be as follows: IWXXM GML form; IWXXM context (class) diagrams with identified features, types and allowed enumerations are published in the WMO Manual on Codes (WMO-No. 306) Volume I.3, Part D ‘Representations derived from data models’; Guidance on the implementation of IWXXM is provided in ICAO Doc 10003 ‘Manual on the ICAO Meteorological Information Exchange Model (IWXXM)’; Guidance on the implementation and exchange of IWXXM in the EUR Region is provided in ICAO EUR Doc 033 ‘Guidelines for the Implementation of OPMET Data Exchange using IWXXM in the EUR Region’; Alphanumeric code form as specified in the WMO Manual on Codes (WMO-No. 306), Volume I.1, Part A ‘Alphanumeric Codes’; Abbreviated plain language form as prescribed in the AMC (AMC1 MET.TR.115(a), AMC1 MET.TR.200(a), AMC1 MET.TR.200(a)(12), AMC3 MET.TR.215(a), AMC1 MET.TR.235(a), AMC1 MET.TR.235(c), AMC2 MET.TR.250(a), AMC1 MET.TR.255(a), AMC1 MET.TR.265, AMC1 MET.TR.270) describing the meteorological information being provided; ‘Gridded binary’ (GRIB) code form as specified in the WMO Manual on Codes (WMO-No. 306), Volume I.2, Part B ‘Binary Codes’; ‘Binary universal form for the representation of meteorological data’ (BUFR) code form as specified in the WMO Manual on Codes (WMO-No. 306), Volume I.2, Part B ‘Binary Codes’; portable network graphics (PNG) form.

COMPOSITION AND FILING TIMES OF BULLETINS

(a)Whenever possible, exchanges of operational meteorological information should be made in consolidated bulletins of the same types of meteorological information.

(b)Meteorological bulletins required for scheduled transmissions should be filed regularly and at the prescribed scheduled times.

HEADING Detailed specifications on format and contents of the heading are given in the WMO Publication No 386, 'Manual on the Global Telecommunication System', Volume I, and in ICAO Doc 8896 ‘ICAO Manual of Aeronautical Meteorological Practice'.