Table B3
| Explanation of Data Designators T1T2A1A2ii CCCC |
| TABLE B3 Data type designator T2 (when T1 = I or J) |
| Instructions for the proper application of the data type designators |
| (1) | The designators specified in this table should be used to the greatest extent possible to indicate the type of data contained within the body of the BUFR bulletin. |
| (2) | Where more than one data type is contained in the bulletin, the designators for only one of the data types should be used. |
| (3) | When the table does not contain a suitable designator for the data type, an alphabetic designator which is not assigned in the table should be introduced and the WMO secretariat notified. |
| T1 | T2 | T2 - Data Type |
| I or J | N | Satellite data |
| I or J | O | Oceanographic/limnographic (water properties) |
| I or J | P | Pictorial |
| I or J | S | Surface/sea level |
| I or J | T | Text (plain language information) |
| I or J | U | Upper air |
| I or J | X | Other data types |