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: 40179;BET DAGAN;) (Remarks from Volume-C: SOUNDING UP TO 100HPA - HIGH RESOLUTION)

The SNVF21 TTAAii Data Designators decode as: T1 (S): Surface data T1T2 (SN): Non-standard synoptic hour(The bulletin collects reports from stations: SHIP;) (Remarks from Volume-C: WHEN AVAILABLE)

The SIVF21 TTAAii Data Designators decode as: T1 (S): Surface data T1T2 (SI): Intermediate synoptic hour(The bulletin collects reports from stations: SHIP;) (Remarks from Volume-C: WHEN AVAILABLE)

The ISSX01 TTAAii Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IS): Surface/sea level T1T2A1 (ISS): Synoptic observations from marine stations A2 (X): Global Area (area not definable)(The bulletin collects reports from stations: BUFR;SHIP;) (Remarks from Volume-C: WHEN AVAILABLE)

The ISND21 TTAAii Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IS): Surface/sea level T1T2A1 (ISN): Synoptic observations from fixed land stations at non-standard time (i.e. 0100, 0200, 0400, 0500, ... UTC) A2 (D): 90°E - 0° northern hemisphere(The bulletin collects reports from stations: 40150;40153;MT. KENAAN;40163;40170;40175;40179;BET DAGAN;40180;TEL AVIV (BEN GURION INT. AIRP.);40183;JERUSALEM CENTRE;40188;40190;BEERSHEBA CITY;40193;40195;40199;ELAT;)