GTS Bulletin: ISMD83 AMDN - Observational data (Binary coded) - BUFR (details are described in the abstract)

The ISMD83 TTAAii Data Designators decode as: T1 (I): Observational data (Binary coded) - BUFR T1T2 (IS): Surface/sea level T1T2A1 (ISM): Main synoptic observations from fixed land stations A2 (D): 90°E - 0° northern hemisphere (Remarks from Volume-C: NATIONAL AUTOMATIC SYNOP)ISMD83 TTAAii 数据标识符的解码规则如下： T1 (I)：二进制编码观测数据——采用BUFR格式； T1T2 (IS)：地面/海平面观测； T1T2A1 (ISM)：来自固定陆地站的主要地面气象观测； A2 (D)：东经90°至0°的北半球区域（备注源自C卷：国家自动地面气象观测报文）