Operational procedures for observational data collection at RTH Bangkok Kumpol Luengpetngam Telecommunication Division, RTH: Bangkok E-mail: [email protected].
Download ReportTranscript Operational procedures for observational data collection at RTH Bangkok Kumpol Luengpetngam Telecommunication Division, RTH: Bangkok E-mail: [email protected].
for observational data collection at RTH Bangkok Kumpol Luengpetngam Telecommunication Division, RTH: Bangkok E-mail: RTH Bangkok The telecommunication division of the Meteorological Department of Thailand has assumed as the responsibility of being the Regional Telecommunication Hub (RTH) for south east asia since 1967, upon the request from the World Meteorological Organization (WMO). MSS History Teletype Machine Minicomputer (DG S/130) Minicomputer (DG MV/7800) Alpha DEC 2100 Alpha DEC 40000 RTH BANGKOK NETWORK KualaLumpur NWP Beijing Singapore Climat Div Satellite Subd Royal Navy AirForce Domestinc Asynchronous Circuit Support PCLSCHost PCLSC et Intern Vientiane Tokyo X.25 Protocol 90TL#4 DMZHub Beijing Router DMZHub DECHUB 90 SENT2FIREWALL LANHUB OceanSubdivision CAT FRAMERELAY NETWORK Router Internet Server DECSERVER DECSERVER 90TL#3 DECSERVER 90TL#2 DECSERVER 90TL#1 Dial-inSupport DECREPEATER #1 NewDelhi Jeddah Hanoi Yangon Forecastdiv 4Local ForecastCentre AeroThai Corp UtapaoAirp BackupDomestic Radarsubdiv UbonAirp Singapore Forecastdivision SENT1FIREWALL LANHUB DECAlpha4000 DECAlpha2100 primary standby DECAlpha4000 DECAlpha2100 primary standby MESSAGESWITCHING MESSAGESWITCHING DATABANK DATABANK DEC Alpha 2100 Server Model A500MP-R AXP 190 MHz Alpha CPU 128 MB RAM DISK 8 GB Dual Ethernet Controllers (in0, tu0) RRD42 600MB CD-ROM Drive Qvision video adapter TLZ06-LG 4.0 GB 4mm DAT tape drive 2.88 MB 3.5” FD TSZ07-AA 1600/6250 bpi reel tape drive DEC Alpha 4000 Server 300 MHz Alpha CPU 128 MB RAM DISK 8 GB Dual Ethernet Controllers (in0, tu0) RRD42 600MB CD-ROM Drive Qvision video adapter TLZ06-LG 4.0 GB 4mm DAT tape drive 2.88 MB 3.5” FD TSZ07-AA 1600/6250 bpi reel tape drive Software Feature System software - Digital UNIX version 4.0b Application Software - Unified Message Switch (UMS) UMSApplicationandDataFile Flow DataFlow Control Controland Monitor Network Definition PCUser Support Asynchornouse Support X.25Protocol Dial-In Support Host interface viaTCP/IP Internet TCP/IP COMMUNICATION CONTROL AutoStandby UserTerminal SYSTEMCONTROL WMOAFTN/ICAO Message Interchage MessageSwitch Kernel MessageFile WMO Procedure HistoryDatabase Management HistoryDatabase Tape Magnetictape HistoryDatabase Interface Retrieval Validateand Correction MessageDescription Table Statistics Subsystem WMO Reporting MESSAGESWITCHING DATABANK SYSTEM MESSAGEMANAGER MESSAGE QTABLE Systemconfigurationfile MESSAGE DEQUEUE ENQUEUE RETRIEVAL QueueManagement MESSAGEFILE Q QUEUE REQUESTS MessageValidationandError Correction SMTH01VTBB010000 AAXX01004 48300………. MDT MessageRouting Program MessageValidation ValidMessage Channel Queue Database Queue InvalidMessage RouteQ Error Q Error Correction Station HistoryDatabaseRetrieval Tape Historyfile MessageDB Retrieval Requests Printer MESSAGEFILE COMMUNICATION FEATURE Asynchronous ITA-2, IA-5 ASCII Synchronous X.25 (1 PVC & 2 PVC) TCP/IP Frame Relay, WMO standard FTP Asynchronous ITA-2, IA5 ASCII Supports message exchange on asynchronous circuits and communications devices. Supports character processing for low speed and telegraphic operations. It operates at speed of 50 bauds to 9,600 bps. Existing circuit : Bangkok- Synchronous X.25 (1 PVC & 2 PVC) Supports message exchange procedures under X.25 and Fully supported at speed up to 9600 bps. Supports the message exchange format in GRIB code and BUFR as defined by WMO. Existing circuit : Bangkok- Internet TCP/IP Frame Relay and standard WMO FTP Cost-saving and efficiency. Supports numerous application utilities available off the shelf, which offer solutions to information communication needs of WMO members. Internet TCP/IP Frame Relay and standard WMO FTP (next) Provides connectivity between members in a more flexible and versatile manner than base x.25 based equivalent. New WMO communication technique. Additional line backup via internet. Recent development at RTH Bangkok Hardware updates Software updates Circuit updates Hardware updates Internet server for TCP/IP. Cisco 2600 routers. Sentinet firewalls. Software updates WMO socket TCP/IP frame relay module. WMO FTP standard module. Circuit updates 16 Kbps frame relay for Bangkok-Tokyo circuit. 64 Kbps ftp for BangkokVientiane circuit. 16 Kbps frame relay for Bangkok-Kuala Lumpur circuit. Daily Data traffic at RTH Bangkok bytes 50,000,000 40,000,000 30,000,000 bytes 20,000,000 10,000,000 0 RECEPTION RJTD BABJ DEMS OEJD 23,911,374 5,501,712 3,953,998 1,429,075 VNNN VBRR VLIV WMKK 527,697 170,619 66,217 464,992 7,024,931 3,476,052 46,526,667 TRANSMISSION 511,054 1,153,373 1,161,395 429,129 4,177,732 WSSS VTBB TOTAL RECEPTION 649,153 1,228,300 2,068,816 1,837,150 24,255,332 37,471,434 Average number of observations bulletins RX/TX within24 Hrs. Circuit 1RJTD 2BABJ 3DEMS 4OEJD 5VNNN 6VBRR 7VLIV 8WMKK 9WSSS Speed Reception Transmission 16Kbps 11,175 456 9,600 1,420 1,303 200 683 1,431 75 1,171 417 1,200 35 3,733 50 12 600 64Kbps 4 1,161 16Kbps 1,067 2,770 2,400 3,644 2,214 19,211 14,085 Totals (bulletins) Average number of observations receivedwithin24 Hrs. Type ofData Synop Temp Pilot Ship, Buoy, Tempship, Pilot ship, Bathy,Tesac andTrackof AirepandAmdar Satellite W arnings andForecasts M ETAandTAF GRIDandGRIB Others Totals Bulletins 4,983 2,031 438 1,089 5,197 2,925 194 272 1,859 223 19,211 Daily average availability of Rx/Tx bulletins at RTH Bangkok 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0 RECEPTION TRANSMISSION RJTD BABJ DEMS OEJD VNNN VBRR VLIV WMKK WSSS TOTALS 11,175 1,420 683 1,171 35 12 4 1,067 3,644 15,567 456 1,303 1,431 417 3,733 600 1,161 2,770 2,214 14,085 RECEPTION Bulletins Average number of observations bulletins RXwithin24Hrs. Type Synop Temp Pilot RJTD BABJ DEMS OEJD VNNNVBRR VLIV WMKK WSSS 1,634 1,035 1,256 255 74 75 Ship, BathyandBuoy 601 AirepandAmdar 3,662 Satellite 2,916 Warnings andForecasts 86 META, TAF 0 Others 946 Totals (bulletins) 29 16 0 5 5 0 11,175 1,420 230 60 25 762 196 4 26 5 2 10 0 0 4 0 0 27 1,255 20 239 23 235 346 1 3 2 0 16 0 0 6 6 197 0 0 0 0 1 0 1 0 0 0 2 0 0 0 0 0 0 0 0 8 105 6 1,512 0 0 0 92 9 61 974 145 683 1,171 35 12 4 1,067 3,644 Average number of observations bulletins TX within24Hrs. Type RJTD BABJ DEMSOEJDVNNNVBRRVLIV WMKKWSSS synop Temp Pilot Ship, BathyandBuoy AirepandAmdar Satellite Warnings andForecasts META, TAF GRIDandGRIB 211 50 96 21 0 0 8 62 0 610 225 163 22 42 0 17 210 0 733 190 147 121 87 0 17 68 0 186 895 57 202 104 130 32 205 6 62 0 1762 32 103 0 0 0 360 345 785 1113 1213 82 269 417 250 100 104 59 59 25 0 199 247 0 0 91 55 0 0 46 45 29 1 86 41 0 0 109 52 16 0 641 236 Average number ofobservations bulletins RX within24Hrs. Circuit Reception Error Duplicate Request 1RJTD 11175 54 1828 1 2BABJ 1420 13 191 0 3DEMS 4OEJD 5VNNN 6VBRR 7VLIV 8WMKK 9WSSS 683 1171 35 12 4 1067 3644 44 48 0 1 2 0 11 221 674 0 2 0 16 389 0 0 1 0 0 0 4 19,211 173 3,321 6 Totals (bulletins) Operator interface at RTHBangkok Activities Errordata Duplicateddata Correcteddata RequesteddatafromVTBB RequesteddatatoVTBB Newheadermessages Bulletins 173 3,321 77 10 6 15 Error analysis for data received within 24 hrs. Invalid Invalid origin 19.2% header 0.2% Invalid date 0.1% Missing start/end of message 5.9% Line too long 0.3% Unknown WMO header 13.7% Percentage of monitoring results for Southeast Asia : SYNOP (monitoring period : 21 August 2002 - 30 August 2002) station name 48001 PUTAO 48004 HKAMTI 48008 MYITKYINA 48010 HOMALIN 48018 KATHA 48019 BHAMO 48020 HAWLAIL country MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR 00z 50.00 90.00 90.00 80.00 90.00 90.00 06z 80.00 100.00 100.00 100.00 100.00 80.00 12z 18z 60.00 70.00 10.00 70.00 70.00 70.00 70.00 - Percentage of monitoring results for Southeast Asia : SYNOP (monitoring period : 21 August 2002 - 30 August 2002) station name 48025 48035 48037 48042 48045 48048 48053 48057 48060 48062 KALEWA LASHIO MONYWA MANDALAY MINDAT NYAUNG-U MEIKTILA TAUNGGYI KENGTUNG SITTWE country MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR 00z 90.00 80.00 90.00 90.00 90.00 90.00 90.00 90.00 06z 12z 18z 100.00 50.00 90.00 100.00 80.00 100.00 80.00 80.00 90.00 80.00 60.00 60.00 70.00 70.00 70.00 70.00 60.00 30.00 70.00 70.00 10.00 10.00 10.00 Percentage of monitoring results for Southeast Asia : SYNOP (monitoring period : 21 August 2002 - 30 August 2002) station name country 48071 48077 48078 48080 48094 48097 48108 48109 48110 48112 KYAUKPYU PROME TOUNGOO SANDOWAY PATHEIN YANGON DAWEI COCOISLAND MERGUI VICTORIAPOINT MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR MYANMAR 00z 90.00 70.00 60.00 70.00 80.00 90.00 90.00 - 06z 12z 18z 100.00 100.00 90.00 90.00 40.00 100.00 90.00 90.00 60.00 20.00 70.00 70.00 70.00 20.00 60.00 70.00 60.00 40.00 70.00 60.00 30.00 10.00 - Percentage of monitoring results for Southeast Asia : SYNOP (monitoring period : 21 August 2002 - 30 August 2002) station 48802 48803 48806 48808 48810 48820 48823 48826 48830 48831 name SAPA LAOCAI SONLA CAOBANG BAC CAN HANOI NAMDINH PHULIEN LANGSON THAINGUYEN country VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM 00z 06z 12z 18z 100.00 100.00 100.00 90.00 100.00 100.00 100.00 100.00 100.00 100.00 70.00 80.00 80.00 80.00 80.00 90.00 80.00 90.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 70.00 80.00 80.00 80.00 80.00 80.00 80.00 Percentage of monitoring results for Southeast Asia : SYNOP (monitoring period : 21 August 2002 - 30 August 2002) station 48838 48839 48840 48845 48846 48848 48852 48855 48863 48866 name MONG-CAI BACHLONGVI THANHHOA VINH HATTINH DONGHOI HVE DANANG QUANG-NGAI PLEIKU country VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM 00z 06z 12z 18z 100.00 100.00 100.00 90.00 100.00 100.00 100.00 100.00 100.00 90.00 80.00 90.00 80.00 90.00 80.00 90.00 80.00 90.00 80.00 80.00 80.00 70.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 Percentage of monitoring results for Southeast Asia : SYNOP (monitoring period : 21 August 2002 - 30 August 2002) station 48870 48875 48877 48887 48892 48900 48907 48914 48916 48917 name QUY NHON BUONMATHUOT NHATRANG PHANTHIET SONGTUTAY HOCHI MIN RACHGIA CAMAU THOCHU PHUQUOC country VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM VIET NAM 00z 100.00 90.00 100.00 100.00 100.00 100.00 100.00 100.00 80.00 100.00 06z 90.00 80.00 90.00 90.00 70.00 90.00 80.00 90.00 80.00 90.00 12z 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 80.00 18z 80.00 70.00 80.00 80.00 80.00 80.00 80.00 80.00 60.00 80.00 Percentage of monitoring results for Southeast Asia : SYNOP (monitoring period : 21 August 2002 - 30 August 2002) station 48918 48919 48920 48921 48924 48925 48926 48927 48928 48930 name country CONSON VIET NAM HUYENTRAN VIET NAM TRUONGTRAN VIET NAM BOUNNEUA LAOS LUANGNAMTHA LAOS OUDOMSAY LAOS HOVEI-SAI LAOS VIENSAY LAOS SAM-NEUA LAOS LUANG-PRABANG LAOS 00z 06z 12z 18z 100.00 100.00 100.00 20.00 70.00 80.00 30.00 50.00 50.00 80.00 90.00 80.00 90.00 50.00 90.00 90.00 100.00 80.00 40.00 100.00 80.00 80.00 80.00 - 80.00 80.00 80.00 - Percentage of monitoring results for Southeast Asia : SYNOP (monitoring period : 21 August 2002 - 30 August 2002) station 48935 48938 48940 48941 48944 48945 48946 48947 48948 48952 name PLAINE DES JARRES SAYAROURY VIENTIANE PHONHONG THANGONE TAKSANE THAKHEK SAVANNAKHET SENO SARAVANE country LAOS LAOS LAOS LAOS LAOS LAOS LAOS LAOS LAOS LAOS 00z 80.00 80.00 80.00 40.00 80.00 80.00 80.00 40.00 30.00 06z 100.00 90.00 100.00 60.00 10.00 90.00 90.00 90.00 70.00 60.00 12z 18z - - Percentage of monitoring results for Southeast Asia : SYNOP (monitoring period : 21 August 2002 - 30 August 2002) station 48953 48955 48957 48962 48966 48968 48982 48983 48985 48991 name country SEKONG LAOS PAKSE LAOS ATTOPEU LAOS BATTAMBANG CAMBODIA SIEMREAP CAMBODIA KRAKOR CAMBODIA KOS KONG CAMBODIA KOMPONGSOM/VILLE CAMBODIA KAMPOT CAMBODIA PHOM-PENH CAMBODIA 00z 40.00 80.00 10.00 - 06z 30.00 100.00 30.00 - 12z 18z - - Problems and recommendations Silent centre Garbled message Repeated sending Quality message format Connection failed Automatic request/reply Financial support for developing country.