WORLD METEOROLOGICAL ORGANIZATION RA VI Training Workshop on BUFR and Migration to Table-Driven Code Forms Langen, Germany, 17-20 April 2007. BUFR/CREX Templates and Regulations Eva Č ervená. CZECH HYDROMETEOROLOGICAL INSTITUTE.
RA VI Training Workshop on BUFR and
Migration to Table-Driven Code Forms
Langen, Germany, 17-20 April 2007
Templates and Regulations
CZECH HYDROMETEOROLOGICAL INSTITUTE
Templates TM 307080, TM 307090 and TM 308009 for reporting SYNOP, SYNOP MOBIL and SHIP data in TDCF are constructed in a similar way. They consists of 3 parts:
“Instantaneous” parameter is a parameter that is not coupled to a time period descriptor.
“Period” parameter is a parameter that is preceded with a time period descriptor, which allows more precise data description than in traditional codes. However, once a period descriptor is introduced, it applies to all following entries until it is redefined by another period descriptor.
Station, time and location identification 3 01 090
Measured values of some elements are significantly influenced by the height of sensor. Based on the requirements of OPAG IOS experts, a new parameter 007032 (Height of sensor above local ground or marine platform) has been introduced to be reported for
In case of marine data, also the height of sensor above water (0 07 033) is required to be reported for
The entries within the “instantaneous data” as well as within the “period data” are grouped according to the requirement for the heights of sensor to be included or not.
For example, within 3 02 043 (Basic synoptic “period” data), there is a block of entries:
The last entry was inserted because the height of sensor is not required for the following data (Evaporation data, etc.).
If regional or national reporting practices require inclusion of additional period parameters, the common sequence descriptors 3 07 080, 3 07 090 and 3 08 009 may be supplemented by relevant descriptors.
If regional or national reporting practices require inclusion of additional instantaneous parameters, the common sequence descriptors 3 07 080, 3 07 090 and 3 08 009 cannot be used. In this case, they shall be used in the first level expanded form and the new entries shall be inserted to precede 3 02 043 (Basic synoptic period data) or 3 02 060 (SHIP period data).
Station, time and location identification3 01 090
Templates TM 309050, TM 309051 for reporting PILOT, PILOT MOBIL and PILOT SHIP data and TM 309052 for TEMP, TEMP MOBIL, TEMP SHIP and TM 309053 for TEMP DROP data are constructed in a similar way:
If regional reporting practices require inclusion of data at additional levels, these levels shall be indicated by the bit No. 15 set to 1 in Extended sounding significance 008042. Other additional levels shall be specified by all bits of 008042 set to 0.
If additional information on sounding instrumentation is required, the common sequence descriptors may be supplemented by one or more parameters to allow representation of such information or by a character data field (using 2 05 Y).
Templates TM 307073 for CLIMAT data and TM 08013 for CLIMAT SHIP data are constructed in a similar way:
The time identification refers to the beginning of the one-month period.
Template TM 309054 for reporting CLIMAT TEMP and CLIMAT TEMP SHIP:
Monthly mean data are currently required from 10 levels. If data from additional levels were required in the future or by national decision, they can be included.