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The header

 
 

Section 0

NameDescription
totalLengthTotal length of the message in bytes
editionNumberBUFR edition number

Section 1

NameDescription
section1LengthLength of section 1 in bytes
masterTableNumberBUFR master table
bufrHeaderSubCentreOriginating sub-centre
bufrHeaderCentreOriginating centre
updateSequenceNumberUpdate sequence number (0 for original messages, incremented by 1 for updates)
section1Flags

Bit 1:

  • 0 : no optional section present
  • 1 : optional section present
dataCategoryData category (table A)
dataSubCategoryData sub-category
masterTablesVersionNumberVersion number of master table used
localTablesVersionNumberVersion number of local table used
typicalYearOfCenturyYear (yyyy)
typicalMonthMonth
typicalDayDay
typicalHourHour
typicalMinuteMinute

Section 3

  
section3LengthLength of section 3 in bytes
numberOfSubsetsNumber of data subsets
section3Flags

Bit 1:

  • 0  :Other data
  • 1: Observed data

Bit 2:

  • 0: Non compressed data
  • 1: Compressed data
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