02/29-03/08 weekly update

Owned by Xiaoxia Chen
Mar 15, 2022
2 min read

ECMWF

Benin

  • March 2nd

    • The last report received with identifier '06002' was on 18 Feb.

    • From 22 Feb (or a bit earlier), the BUFR reports from 65344 (template 309057) are good

  • Summary

    • For Cotonou (65344), the advice is to please send BUFR reports with as many levels as possible

    • to provide directly from the radiosonde (Graw) software: preferably template 309057 for radiosonde profiles and 309051 for pilot (wind only) ascents.

Next Goal: to get good BUFR reports from other stations in West Africa.

Niger

  • Two stations in Niger:

Station

Station Information

Data

Station

Station Information

Data

61024

16 58 00N       07 59 00E       502.00  501.00  NIGER   AGADEZ

  • Both TAC and BUFR is intermittent

  • Last received on 21 Feb

  • appeared to be converted from TAC

61052

13 29 00N       02 10 00E       227.00  223.00  NIGER   NIAMEY-AERO

  • Last received on 26 Feb

  • Appeared to be converted from TAC

From GISC Offenbach

TTAAii

Data Type

CCCC

Data on 9 March

Comment

TTAAii

Data Type

CCCC

Data on 9 March

Comment

IUJH01

Upper wind from fixed land stations (entire sounding)

DRRN

Null

 

IUKH01

Radio soundings from fixed land stations (up to 100 hPa)

DRRN

Null

 

IUSH01

Radiosondes/pibal reports from fixed land stations (entire sounding)

DRRN

Null

 

IUWH01

Upper wind from fixed land stations (up to 100 hPa)

DRRN

Null

 

Fig. IUJH01 DRRN (Niger, station: 61024 & 61052)

Fig. No data availalbe today

 

https://confluence.ecmwf.int/display/TCBUF/Radiosonde+BUFR+templates

309050 is BUFR PILOT format - pressure coordinate, if there are both pressure and height measurements I would suggest using 309052 or 309057)
309051 is BUFR PILOT format - height coordinate, used for wind-only ascents without a pressure sensor
309052 is BUFR TEMP ascent format (original template, 309057 is slightly better now)
309053 is BUFR dropsonde format

(309055 is BUFR TEMP ascent format with height coordinate but not pressure, not used in practice)
309056 is BUFR TEMP descent format
309057 is the latest BUFR TEMP ascent format (compared to 309052 there is higher precision for height and pressure, plus extra metadata)

 

Links:

a summary map of the migration to BUFR at https://confluence.ecmwf.int/display/TCBUF/Data+availability
ASECNA> Agency for Aerial Navigation Safety in Africa and Madagascar