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ICM-MTN AND ET-OI MEETING , GENEVA 23-26TH SEPTEMBER 2008

Presented by: Eng. Henry N. Karanja

NAIROBI RTH.

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INTRODUCTION

RTH Nairobi is charged with the responsibility of facilitating the collection and exchange of Meteorological Observations and Information in support of the operations of the NMCs under its responsibility.

Observation Network in Kenya

• Weather Observing stations (36)• Hydrological stations (10)• Seismic stations (1)• Ten Floating Buoys at 1 degree to the

North and South of Mombasa.• Marine stations (4)• Radar (2), two more to be installed• Global atmospheric Watch (GAW)

station 3

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Distribution of weather stations in Kenya

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Proposed Seismic Monitoring

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Distribution of hydromet stations in Kenya

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NYERI

NAIROBI NMC

MOBASA VSAT

GARRISSA

VSAT TERMINAL

MOMBASA VSAT KISUMU

VSAT

WAJIR

GARRISSA

KISUMU

MOYALE

MARSABIT

KITALE

KERICHO

LODWAR

MARSABIT

BIT

NAKURU

ELDORET

KISII

THIKA

JKIA

NYERI

NYERI

MERU

DAGORETTI

WILSON

KISUMU

KISUMU

MOMBASA MALINDI

LAMU

VOI

MAKINDU

NATIONAL TELECOMMUNICATION NETWORK

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Implementation status of National Telecommunication Network at RTH NAIROBI

NATIONAL TELECOMMUNICATION NETWORK

CIRCUIT TYPE

SPEED STATUS FUTURE PLANS

KISUMU(DATA COLLECTION PLATFORM)

VSAT TCP/IP 64KBPS OPERATIONAL

MOMBASA (DATA COLLECTION PLATFORM)

VSAT TCP/IP 64KBPS OPERATIONAL

JOMO KENYATTA INTERNATIONAL AIRPORT (JKIA)(DATA COLLECTION PLATFORM)

VSAT TCP/IP 64KBPS OPERATIONAL

ELDORET INTERNATIONAL AIRPORT

VSAT TCP/IP 64KBPS OPERATIONAL

GARISSA(DATA COLLECTION PLATFORM)

VSAT TCP/IP 64KBPS OPERATIONAL

WILSON AIRPORT VSAT TCP/IP 64KBPS OPERATIONAL

NANYUKI LEASED TELEGRAPHIC LINE

75 bauds

OPERATIONAL VSAT AT 64k BY OCT 2008

MOI AIR BASE LEASED TELEGRAPHIC LINE

75 bauds

OPERATIONAL VSAT AT 64k BY OCT 2008

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MODERNIZATION OF NATIONAL DATA COLLECTION

• Installation of twenty four(24) automatic weather stations has been completed. Procurement of another twelve (12) is in Progress.

• Installation of 10 hydro- met stations• Installation of 1 seismic sensor • Installation of 4 Marine automatic weather

stations• Installation of Global Packet Radio service (GPRS)

modems for data communication from the meteorological stations to the RTH (in progress).

• Installation of VSAT terminals for data communication from the data collection platforms.

• Internet connectivity via VSAT in all data collection centers.

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RTH NAIROBI

PRETORIA

(9.6k LEASED LINE)

(

CAIRO

(9.6k LEASED LINE)

DAR-ES-SALAAM (VSAT 64K)

ENTEBBE

(VSAT 64K)

ADDIS ABABA

(INTERNET)

MAURITIUS

(INTERNET)

KIGALI

(AFTN)

BUNJUMBURA

(AFTN)

MOGANDISHU

(AFTN)

SYCHELLES

(INTERNET)

OFFENBACH

(VSAT 64K)

MAIN AND REGIONAL CONNECTIONS

RTH

RTH ON MTN

NMC

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Improvement on Regional and Main Network Telecommunication System• Installation of a new AMSS at the RTH and in

Mombasa.• Internet connection via VSAT at a speed of 2048

Kbps (Downlink) and 512Kbps (Uplink). Plans are underway to increase the uplink to 1Mbyte

• Connection of Nairobi-Dar-e-salaam link via VSAT (64Kbps)

• Connection of Nairobi-Entebbe link via VSAT (64Kbps)

• Connection of Nairobi-Offenbach link via VSAT (64Kbps)

• Connection of Reunion through Offenbach

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NAME OF CRCUIT

CIRCUIT TYPE SPEED STATUS FUTURE PLANS

MAIN TRUNK LINKS

OFFENBACH VSAT TCP/IP 64 KBPS OPERATIONAL

TOULOUSE DIGITAL LEASED LINE TCP/IP

64 KBPS OPERATIONAL NAIROBI RTH wishes to discontinue this line due to high expense.

REGIONAL LINKS

ENTEBBE VSATTCP/IP

64KBPS OPERATIONAL

DAR-ES-SALAAM

VSAT TCP/IP 64 KBPS OPERATIONAL

ADDIS ABABA Internet E-mail Operational Migrate to VSAT

CAIRO ANALOGUE LEASED LINE X25

9.6KBPS Presently Cairo have migrated to VSAT using the National Telecommunications operator

PRETORIA ANALOGUE LEASED LINE TCP/IP

9.6KBPS Not operational. Problem with Kenya NationalTelecommunications operator

Migrate to VSAT

REUNION VIA OFFENBACH Operational

IMPLEMENTATION AND FUTURE PLANS OF GTS CIRCUITS CONNECTED TO RTH NAIROBI

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NAME OF CRCUIT

CIRCUIT TYPE SPEED STATUS FUTURE PLANS

REGIONAL LINKS

Kigali AFTN Telegraphic link

50 bauds OPERATIOBNAL TCP/IP LINK

Bujumbura AFTN Telegraphic link

50 bauds OPERATIOBNAL TCP/IP LINK

Djibouti AFTN Telegraphic link

50 bauds OPERATIOBNAL TCP/IP LINK

Mogadishu AFTN Telegraphic link

50 bauds OPERATIOBNAL TCP/IP LINK

IMPLEMENTATION AND FUTURE PLANS OF GTS CIRCUITS CONNECTED TO RTH NAIROBI

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Automatic Message Switching System (AMSS)

• Assist in meeting the requirements of the RTH

• The AMSS has the following capabilities• Handles all kind of WMO data required by an NMC.• Supports all kind of interfaces including:

- Asynchronous lines (leased line, dial-up) at any standard speed- Telegraphic lines- TCP/IP FTP based communications - TCP/IP socket based connections- AFTN/ICAO interface- Point-to-point X25 connections - Automatic email, fax and printer connectivity- RETIM 2000, MDD, MSG, SADIS, ISCS satellite emission / reception

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GTS SUPPORT FACILITES

To support GTS data distribution, Nairobi has acquired and installed Satellite based Stations to enhance amount of data for distribution and forecasting. These are:-

• MSG (Second Generation) which include MDD data

• RANET• RETIM-Africa station in Nairobi and

Mombasa.

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PROBLEMS ENCOUNTERED AT THE RTH

• Breakdown of SSB radios for national data collection and propagation problems at night resulting to use of telephones. (high cost…)

• Unreliability and high cost of the national telecommunication system for regional connections.

• Limited allocation from the National budget to meet the needs for the Departments.

WIGOS Demonstration project (WDP)

In preparation for the implementation of the WDP, Kenya has done the following:

• Nominated three focal points for coordination of the WDP• Formed a committee for the project implementation with the following terms

of reference. Take inventory of all the observational systems in KMD. These will

include land , sea, and upper air observations Consider stake holders who have environmental observational systems. Integrate data and products from all the observational systems in KMD

into one Information system taking into account the WMO recommended data formats where applicable.

Consider Data from stakeholders and integrate it into the Information system.

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WIGOS Demonstration project (WDP)

Develop a KMD Meteorological Information Processing System (MIPS) Develop a KMD meteorological Climatological Data Bank (MCDB) with a well

defined Meta data for push and pull of data into GTS. Consider the status of the existing GTS and make recommendations on its

improvements. Meet once a month to consider progress. Give a progress report every six months to the Director for forward

transmission to WMO. In the process of procuring a Integrated Meteorological

Information System (IMIS) Installed a sector specific meteorological products

generation system

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