Tunisia: RS Data Missing block number

Background:

• Two stations from Tunisia have missing Block numbers in BUFR: 60715 and 60760.  They are sending 309057 data now.

• CCCC is DTTA (Tunis/Carthage)

• TTAAii is IUSD01 and IUKD01 (I Observational data (Binary coded) – BUFR; U: Upper­air data; SD:Saudi Arabia;KD:not found)

• Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IU): Upper air T1T2A1 (IUS): Radiosondes/pibal reports from fixed land stations (entire sounding) A2 (D): 90°E - 0° northern hemisphere (link)

• The IUKD01 TTAAii Data Designators decode (2) as: T1 (I): Observational data (Binary coded) - BUFR. T2 (U): Upper air. A1 (K): Radio soundings from fixed land stations (up to 100 hPa) TEMP (parts A, B). A2 (D): 90°E - 0° northern hemisphere.

• The IU[KS]D02 reports from DTTA started on 2021-11-23.

  The IU[KS]D01 reports from DTTA started over a year ago.

  The 'noout' values in the table below indicate that none of them have been decoded -

  presumably all because of the missing block number, but I can't be sure of this.

• Example attached.

  Open

  

   

Open

• Because of the missing block (should be 60), the BUFR data are not passed to the NWP system at ECMWF

• Goal: To add the block number at the stations - changing a default in the setup. 

How to track the issue:

• Tunisia National Institute of Meteorology NMC → Casablanca

• Open a GISC Ticket Issue, assign to GISC Casablanca to contact Tunisia

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• Focal Point

Information Session:

• The IUSD01 TTAAii Data Designators decode as:

  • T1 (I): Observational data (Binary coded) - BUFR

  • T1T2 (IU): Upper air

  • T1T2A1 (IUS): Radiosondes/pibal reports from fixed land stations (entire sounding)

  • A2 (D): 90°E - 0° northern hemisphere(The bulletin collects reports from stations: 10035;Schleswig;) (Remarks from Volume-C: high resolution 2 sec.)

• The IUSD02 TTAAii Data Designators decode as:

  • T1 (I): Observational data (Binary coded) - BUFR

  • T1T2 (IU): Upper air

  • T1T2A1 (IUS): Radiosondes/pibal reports from fixed land stations (entire sounding)

  • A2 (D): 90°E - 0° northern hemisphere(The bulletin collects reports from stations: 10113;Norderney;) (Remarks from Volume-C: high resolution 2 sec.)

• The IUKD01 TTAAii Data Designators decode as:

  • T1 (I): Observational data (Binary coded) - BUFR

  • T1T2 (IU): Upper air

  • T1T2A1 (IUK): Radio soundings from fixed land stations (up to 100 hPa)

  • A2 (D): 90°E - 0° northern hemisphere(The bulletin collects reports from stations: 10035;Schleswig;) (Remarks from Volume-C: high resolution 2 sec.)

• The IUKD02 TTAAii Data Designators decode as:

  • T1 (I): Observational data (Binary coded) - BUFR

  • T1T2 (IU): Upper air

  • T1T2A1 (IUK): Radio soundings from fixed land stations (up to 100 hPa)

  • A2 (D): 90°E - 0° northern hemisphere(The bulletin collects reports from stations: 10113;Norderney;) (Remarks from Volume-C: high resolution 2 sec.)