Download ppt - MTSO MSS EDZW := MTSO Meteorological Telecommunication System Offenbach Bernd Richter, RTH Offenbach

MSS EDZW := MTSOMeteorological

Telecommunication SystemOffenbach

Bernd Richter, RTH Offenbach

MMeteorological eteorological TTelecommunication elecommunication SSystem ystem OOffenbachffenbach

23 Sep 2008 ICT-GTS RTH Offenbach 2

RTH RTH in the WMO MTN

Continuous reception and dissemination of meteorological data (ASCII and Binary) in bulletins or files via RMDCN (GTS), AFTN (ICAO) Internet, leased lines, HF Radio Broadcast, Satellite DWDSAT etc.

Supply of the German National Computer Centre, National Regional Offices and Research Vessels with meteorological data and products

RTH Offenbach Main Tasks



March1982DEC PDP 11/44-System (GEI-MSS)

March1990Migration to a VAX-Cluster (WMO-MSS)

December1992Deactivation of the PDP 11/44-System

April 1996Transition to MSS II and AFD on Stratus Continuum 620FTX OS = System V Rel. 4 UNIX derivative;implementation of TCP/IP protocols (ftp/sockets)

November 2002MSS on a high availability-Cluster Primepower 400 with SUN-Solaris 8 (Fujitsu Siemens

Computer)

August 2008MSS High-Availability-Cluster Primargy 300S Fujitsu FSC SLES10 S

October 2008MSS-Software-Migration to IBL-soft Moving Weather



Full compliance to WMO- / ICAO - Standards and Recommendations

High Performance, Graphical User Interface

Online Configuration, context sensitive help

Interfaces to other standard communication devices

Easy extension due to modular design

Send / retrieve any type of file, bulletin and report

File distribution with priority

Message Switching Software, Main features

Moving Weather



Region IAfrica

Region IIAsia

Region IIISouthern America

Region IVNorthern & Central

America

Region VSouth-West Pacific

Region VIEurope

W ashington

Brasilia

BuenosAires

Dakar

Nairobi

Jeddah

Kairo

Sofia

Offenbach

Moskau

Peking

Tokio

Melbourne

Neu Delhi

= W orld M eteorological Centre (W M C)

= Regional Telecom m unication Hub (RTH)

Algier

Prag

Toulouse

Exeter

W ashington

Tokio

MMain ain TTelecommunication elecommunication NNetwork (MTN)etwork (MTN)







Approximately 120 virtual channels120 virtual channels configuredApart from international connections within the WMO networks several connections to International Organisations, DWD Regional Offices in Germany, Universities, authorities and other customers.

MTN connections - Beijing (RA II), Jeddah (RA II), Nairobi (RA I), Prague and Toulouse

RMTN connections - Exeter, Norrköping, Rome, Vienna, WarszawaRTH-Responsibility - Israel (Bet Dagan), Switzerland (Zurich) Bilateral connections - Amman, Ankara, Athens, De Bilt, Kobenhavn, Madrid, Abu Dhabi, Doha, Teheran, LjubljanaInt. Organisations - ICAO, ECMWF, ESOC, EUMETSATDissemination services- HF Radio Broadcast (F1B and F1C), DWDSAT

MSS Connections



Protocol types used with the connected lines:

Asynchronous incl. Modem-connections, HF Broadcast (3 international, 2 national, 1 DWD internal)

E-mail Antarctica, R/V Polarstern, Meteor, Universities, D-CMET DROP, IAEA

FTP (35 international, 53 national)

TCP/IP-Sockets incl. special ACK procedure (level4) (20 international, 4 national)

CIDIN, X-25 withdrawn from use in 2008

MSS connections continued



OUT/IN kbps % Bandwidth CCCC/ORG ISO City 512 41.0 ECMW GBR Reading 128/64 10.3 LSSW CHE Zurich 64 5.1 LFPW FRA Toulouse 64 5.1 EUMS DEU Darmstadt 64 5.1 LOWM AUT Vienna 64 5.1 ESWI SWE Norrköping 48/64 3.8 EGRR GBR Exeter 48 3.8 BABJ CHN Beijing 32 2.6 OKPR CZE Praha 32 2.6 LIIB ITA Rome 32 2.6 LTAA TUR Ankara 32 2.6 LGAT GRE Athens 32/16 2.6 LYBM FYU Beograd 16/ 8 1.3 OEJD SAU Jeddah 16 1.3 EKCH DNK Kobenhavn 16 1.3 LEMM ESP Madrid 16 1.3 OMAE UAE Abu Dhabi 16/ 8 1.3 OJAM JOR Amman 16/ 8 1.3 SOWR POL Warszawa 1248 kbps 100 TOTAL

Bandwidth / kbps

and percentage

of lines from / to

RTH Offenbach



currentnumber of messages

Input: 570.000 (6 GB)

Output: 4,3 Million (16 GB) IN: 6 GBnumber of files

Input: 74.000 OUT: 16 GBOutput: 557.000

expected within 5 yearsnumber of messages

input: 1 Million

output: 7 Million IN: 70 GBnumber of files

input: 1 Million OUT: 200 GBoutput: 5 Million

Data Traffic of EDZW MSS per day



MSS DatabaseMSS Database

48.000 routing entries with control informationStorage time - report extraction - protection - DTG-checks - double check by checksum - transmission information etc.(230 ignore, 400 compiled, 450 sub, 33920 input messages)

1.100 scheduler entries

240.400 report database entries in 65 different definition records

12.500 entries in Station Catalogue



• System Availability 99.98 %

• Max. outage time / monthly sum 12‘ / 46‘

• Maintenance Response Time 4 hrs

• Time delay bulletins / files < 1 sec

• Time delay with bulletin compilation < 3 min

• Storage capacity reports / bulletins limited by disc-space only

• Max. length of bulletin, ASCII 15 kB, WMO-part. 250 kB

• Max. length of bulletin, binary 2600 kB, WMO-part. 500 kB

• Max.Traffic per 5 minutes IN/OUT 70 MB / 82 MB

• Avrg.Traffic messages p.s. IN/OUT 3 / 22

• System price 350 kEuro

• Maintenance , Modification 40 kEuro / year

• RTH / other connections 500 kEuro / year

MSS: Technical / financial Characteristics