weather and climate-related services in the least ... · yemen has semi-arid and arid climate....

Regional Workshop on Implementation of Weather and Climate-related Services in the Least Developed Countries (LDCs) in Asia

WIGOS CIVIL AVIATION & METEOROLOGY AUTHORITY

YEMEN METEOROLOGICAL SERVICESCAMA/YMS

9-11 September, Thimphu, Buthan

Mohammed Saeed HamidAssistant Deputy Chairman for CAMA/YMS

Email: [email protected]

Republic of Yemen

• Yemen located in the Middle East, occupying the southwestern to southern end of the Arabian Peninsula between latitudes 12º and 19º N and longitudes 42º and 55º E

• It is bordered by Saudi Arabia to the north, the Red Sea to the west, Oman to the east and Gulf of Aden and Arabian Sea to the south.

•The country land area is about 555,000 square kilometers which includes mountains, ridges, valleys, wadies and desert areas.

Topography of Yemen1-Mountainous region A- North-South mountain region which parallels to the Red Sea.

The region includes Sana’a ,Dhamar,Ibb,and Taiz .

Topography of Yemen

2-The coastal plain overlooking the Red sea, the Gulf of Aden and the Arabian sea.

The width of these coastal areas varies from 30 to 60 km² .The region is comprised of AL-Hodeidah, Aden, Abyan, Shapwa and part of Hadramout. The weather is very hot and humid at summer but moderate in winter.

Topography of Yemen

3-Plateau area whose elevation is around 1,000 m, lying on the east and north of the mountainous and high lands.

The weather is moderate

Topography of Yemen4-The desert region which covering large area .These region includes AL-Jof,Marib,Shabwa and part of Hadramout .Its weather is very hot and dry

Topography of Yemen5- Islands ,this part of the country consists of Islands scattering along coast of Read Sea and Arabian Sea. There is about 120 Islands, most

of which locate in the Read Sea .The biggest island in Red Sea is Kamaran while in the Arabian Sea ,the largest and most important island is Socotra.

► Yemen has semi-arid and arid climate. ► Generally there are two main seasonal, summer and winter.► Hot rainy summer is from April to September and cold winter from

October to March.► Yemen is dominated by the tropical circulation and subjected to the

pattern of the Inter-tropical Convergence Zone (ITCZ) and the Red Sea Convergence Zone (RSCZ) respectively.

► In summer it lays under effect of the ( south-west Indian summer monsoon) .The South-western warm and humid wind in southern part of the low persisting in summer and bring water vapour from the Indian Ocean the to the country .So precipitation almost occurs in summer .

► In winter Yemen is mainly under the influence of the Siberian anticyclone which covers most parts of Asia and causes the predominance of north-east surface winds over Yemen .The weather during winter is relatively cold with less precipitation ,especially at night and early morning over high lands and mountain areas

CLIMATE IN YEMEN:

DEPUTY CHAIRMAN

ASSISTANT DEPUTY CHAIRMANfor SAFETY AVIATION SECTOR

Dir. General for CLIMATE

CAMA CHAIRMAN

ASSISTANT DEPUTY CHAIRMANfor METEOROLGICAL SECTOR

ASSISTANT DEPUTY CHAIRMANfor AIRPORTS SECTOR

Dir. General for ABSORVATION

Dir. General for NMC

Dir. General for RESEARCH

Dir. General HUMAN RESOURCES

HUMAN RESOURCE IN YMS

Total staff members: 232 ( Male 216 , Female 16)

Staff with higher degree:

Employees with higher education 48; The average age of the staff 35;

A brief history of YMS / CAMA

Weather Observation started in Yemen as early as the mid of the 19th century. The basic responsibility was to provide weather information to the marine activities at that time 1845.

During the 1930s through 1960s, synoptic, climate and rainfall stations were established at the main cities to provide weather information to aviation and agriculture.

In 1970s through 1980s YMS continue to establish more surface and upper– air stations, weather satellite ground stations, and implemented a local and International telecommunication network.

In 1990s YMS progressed further by expanding its network of stations and increase the services to other Met. application

•An agency oversees the meteorological development

across the country.

•Act as operator, service-provider and regulator in

such fields as public meteorological service delivery,

meteorological disaster management, climate change

response and climatic resources exploitation.

MAIN RESPONSIBILITIES OF YMS

YMS has been operating under Civil Aviation & Meteorology Authority (CAMA), Ministry of Transport. Now there are;

22 Surface observation stations spread all over the country.

6 Agro met. stations.

10 Climatologically stations

6 Automatic weather stations

Network of Observations within Met Services (current status)

Distribution Met. Station

WEATHER FORECAST & CLIMATE

Institutes undertaking the tasks:

•National Met. Centre(Central Met. Office)

Under establishment:

•National Climate Centre

•Weather Alert System

Telecommunication in YMS

• S S B HF COMM• Dial- up• Frame-Relay• IMPLS• VPN• Satellite

128 Kb/s

Internet ( VPN )

International circuits YMS/CAMA

Jeddah.

MSG 2G / MDD

EUMETSAT

MET.COMM SERVERS

Met. Sat. YMS

SADIS 2G

Met. Sat. SNA. ART

SADIS 2G128 Kb/s

192.168.110.3192.168.110.2192.168.110.16

192.168.120.2

Local circuits YMS/CAMALocal Ethernet / NMC (TCP/IP)

VISIONAEROMEDIAMSG

MET.COMM SERVERS

Local Ethernet / ADMIN (TCP/IP)

ADMIN SERVERNet. ADMIN

CLIMATE Entry

Local Ethernet / CLIMATE (TCP/IP)

Adm. CLIMATE

UNIT STORAGE CLDB SERVERS

192.168.110.2192.168.110.3

192.168.110.120192.168.110.5

192.168.110.6192.168.110.4

192.168.110.130

Local circuits YMS/CAMA (DIMOS)Local Dial-up (UDCS)

UDCS SERVERS

MET.COMM SERVERS

WIRELESS

SANA’A INT. AIROPRT

TOWEROBSERVER St.

WIRELESS

RIYAN INT. AIROPRT

TOWEROBSERVER St.

WIRELESS

TAIZ INT. AIROPRT

TOWEROBSERVER St.

WIRELESS

SIEYUN INT. AIROPRT

TOWEROBSERVER St.

WIRELESS

HODEIDAH INT. AIROPRT

TOWEROBSERVER St.

192.168.110.3192.168.110.2

192.168.110.130

192.168.100.4192.168.150.4192.168.120.4

192.168.160.4

192.168.130.4

YEMEN METEOROLOGICAL INTEGRATED DIGETAL SYSTEM

TELECOMMUNICATIONS SYSTEM

MET. COMM.

MET – COMM:-

It is a GTS Meteorological Message Switching and Meteorological Telecommunications system, switching all types of data and products such as; Text messages (SYNOP, TEMP, METAR…), Binary products such as GRIB, BUFR, T4-DFAX, Satellite images.


UDCS

UDCS: is automated system for collecting and distributing of the weather data. It is simple GTS Message Switch as well as AWS (Automatic Weather Station) data collector.


MSG 2G

MET-MSG 2G; • MSG configuration allows for

the reception and display of the data broadcasted on the Meteosat Second Generation satellite METEOSAT-8.

• It allows for HRIT and LRIT data reception via the EUMETCast service operated by EUTELSAT using the satellite space ship Hotbird 13 E in Ku-Band or Atlantic Bird 3 in C-Band


CLDB


MET VISION

MET-VISION; • Is a forecaster's workstation for display, printing

and creation of Meteorological products. • It is providing forecasters with a comprehensive

range of tools to display, manipulate and combine all the available data and products as; GRIB-coded NWP models from various forecasting centers, T4 or BUFR-coded charts such as SIGWX, Wind-temperature..., Text data in WMO format (SYNOP, TEMP, PILOT, METAR, CREX, forecasts, warnings...), Binary products such as GRIB, BUFR, T4-DFAX, Satellite images (Meteosat, GOES...)


MET AERO

MET-AERO; • It is a system dedicated to the production of

comprehensive flight documentation for the meteorological briefing of pilots and other aviation users.

• It is providing tools to receive, process, store, display, distribute and print following data and products; OPMET text data (METAR, TAF, SPECI, SIGMET, AIRMET, GAMET), URGENT MESSAGES such as Volcanic Ash, Cyclone Advisories.... , BUFR-coded and T4-coded SIGWX Significant Weather charts, GRIB-coded and T4-coded Wind-Temperature Charts, GRIB-coded humidity, height of tropopause, maximum wind Charts


MET MEDIA

MESSIR-MEDIA • is a computerized system designed for the easy

production of complete weather shows for television companies and weather images for other media.

• It is Windows-based system to offer, on a simple PC,.

• Weather shows produced include self-produced charts, model charts, satellite images, and 3D Fly for - and from - any region in the world and not just for your local area.


AWOS (DIMOS)

DIMOS SYSTEM;DIMOS; is an airport weather observing system, measures, processes, stores, presents and communicates all meteorological data at the airport: measurements produced by variety of meteorological sensors, manual observations, WMO codes received from GTS and AFTN. It provides the weather data to observers, air traffic control, pilots and other users in form of real-time screens, graphs, WMO codes, alarms and voice reports.


(Observer)

Observer;

Calibration Lab.

PRESSURE CHAMBER

Calibration Lab.

PUBLIC WEATHER SERVICE

weather and climate-related services in the least ... · yemen has semi-arid and arid climate....

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