---- The bulletin is coded as BUFR code form: FM 94 (BUFR, Binary universal form for the representation of meteorological data) . (Refer to WMO No.306 - Manual on Codes for the definition of WMO international codes) ---- 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. (2: Refer to WMO No.386 - Manual on the GTS - Attachment II.5) ---- Correspondence with the C13 common BUFR/CREX code table: (002/004) or (Vertical soundings (other than satellite) -- Upper-level temperature/humidity/wind reports from fixed-land stations (TEMP)) data type / data su...