The IUSL01 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 (L): 90°E - 0° southern hemisphere (The bulletin collects reports from stations: 89526;PRINCESS ELISABETH;) (Remarks from Volume-C: Princess Elisabeth Station)

The IUSD07 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: 10739;Stuttgart (Schnarrenberg);) (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 UZXT99 TTAAii Data Designators decode as: T1 (U): Upper air data T1T2 (UZ): Upper level pressure, temperature, humidity and wind from a sonde released by carrier balloon or aircraft (Parts A, B, C, D) A1A2 (XT): Tropical Belt(Remarks from Volume-C: CAMPAGNE DATA FROM Tropical Belt, Capo Verde - Barbados FLYOVER ESTIMATED AUG 08 - NOV 24, 2024)

The USAA01 TTAAii Data Designators decode as: T1 (U): Upper air data T1T2 (US): Upper level pressure, temperature, humidity and wind (Part A) A1A2 (AA): Antarctic (The bulletin collects reports from stations: 89002;GEORG VON NEUMAYER;)

The IUSI01 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 (I): 0° - 90°W southern hemisphere (The bulletin collects reports from stations: 89002;GEORG VON NEUMAYER;) (Remarks from Volume-C: COMPLETE SOUNDING)

The IUSD06 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: 10548;Meiningen;) (Remarks from Volume-C: high resolution 2 sec.)

The IUSD09 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: 10962;Hohenpeißenberg;) (Remarks from Volume-C: high resolution 2 sec.,if available)

The IUSD05 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: 10410;Essen-Bredeney;) (Remarks from Volume-C: high resolution 2 sec.)

The IUKX01 TTAAii Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IU): Upper air T1T2A1 (IUK): Radio soundings from marine stations (up to 100 hPa) A2 (X): Global Area (area not definable) (Remarks from Volume-C: TEMP SHIP UP TO 100 HPA)