ContactThe Civil Aviation Authority of Thailand Tel: +662 568 8831 Fax: +662 576 1903 AFS: VTBAYOYX Email: aisthai@caat.or.th Email: ais@caat.or.th | AIP Supplement for Thailand | AIP SUP A 5/20 Effective from 14 FEB 2020 to 31 DEC 2020 Published on 13 FEB 2020 |
This section supplements the following portion(s) of the AIP: AD
With effect from 14 February 2020 to 31 December 2020, pilots are warned that upper-air observations by means Pilot-balloon, Rawin and Rawinsonde will be operated routinely by Meteorological Department, Ministry of Information and Communication Technology. The details are as follows:
NAME |
LATITUDE |
LONGITUDE |
TIME OF OBSERVATIONS (UTC) 00 06 12 18 |
REMARKS |
---|---|---|---|---|
CHIANG MAI |
18º 46' 14.8" N |
098º 58' 06.5" E |
RW W W P |
TIME OF OBSERVATION U.T.C. ±(90 min.) AVERAGE HEIGHT RW 65,000 ft. W 65,000 ft. P(100G.) 32,000 ft. |
UBON RATCHATHANI |
15º 14' 38.0" N |
104º 52' 29.5" E |
RW W W P | |
BANGKOK |
13º 39' 52.0" N |
100º 36' 35.8" E |
RW W W P | |
SONGKHLA |
07º 10' 55.6" N |
100º 36' 27.7" E |
RW W W P | |
CHANTHABURI |
12º 36' 34.9" N |
102º 06' 14.5" E |
W P W P | |
PRACHUAP KHIRIKHAN |
11º 50' 06.4" N |
099º 48' 37.3" E |
W P W P | |
SURAT THANI |
09º 08' 03.4" N |
099º 09' 07.4" E |
W P W P | |
KHON KAEN |
16º 27' 43.9" N |
102º 47' 08.7" E |
P P P P | |
PHITSANULOK |
16º 47' 46.4" N |
100º 16' 33.4" E |
P P P P | |
NOKHON RATCHASIMA |
14º 58' 05.9" N |
102º 05' 09.7" E |
P P P P | |
PHUKET |
08º 06' 09.8" N |
098º 18' 39.3" E |
RW P P P |
Note: Symbols used to indicate observations:-
P (PILOT-BALLOON): Observation of upper-wind obtained by optical tracking of a free balloon. (using 30 or 100 gram balloon)
W (RAWIN): Observation of upper-wind by means of radio-theodolite. (using 300 gram balloon)
RW (RAWINSONDE): Upper-air sounding of atmospheric pressure, temperature and humidity obtained by electronics means and upper-wind obtained by means of radio-theodolite. (using 300 gram balloon)
This AIP supplement will remain current until 31 December 2020. Any change to this AIP supplement will be notified by NOTAM.