COUNT R Y R E P OR T MAL DIVE S ME T E OR OL OGICAL SE - - PowerPoint PPT Presentation

COUNT R Y R E P OR T

MAL DIVE S ME T E OR OL OGICAL SE R VICE

INT R ODUCT ION



National Meteorological Centre

 Geographical location of the station is 04.19°N 073.53°E. In accordance with WMO practices

that every national meteorological network should designate one station as its National Meteorological Centre, Government renamed the Meteorological Centre as the National Meteorological Centre on 1 August 1980. From this date, NMC has been functioning 24

• hours. Daily weather forecasts, all kinds of aviation forecasts, weather warnings and marine

forecasts are issued from National Meteorological Centre.

 Founded in the early 1940s it started with only maximum and minimum thermometers, a rain

gauge and an anemometer.

 Maldives Meteorological Service is now among the most reputed and technologically

advanced organization in the government sector.

Maldives Weather Obs ervation Network



5 Aviation / synoptic met stations in five airport



21 A WS ( Automatic Weather Stations ) currently operational throughout the country.



1 Doppler weather radar



2 High resolution satellite image receiving systems ( K AL PANA,FY 2C)



Our Meteorological Network is established with R egional T elecommunication Hub (R T H) New Delhi and R T H Melbourne to exchange meteorological data and tsunami information.

Maldives Weather Obs ervation Network



The NMC has established redundant links for communicating with local, regional and international centers by using 256kbps VSAT, 10mbps Internet connection and satellite phones.



Warnings are issued from the following media ;

i.Hot lines ii.Telefax iii.Mass media (TV , Radio) iv.Public Alert (cell broadcast & fixed line phone) v.SMS to selected users vi.Email vii.Website

Aviation/ s ynoptic m et s tations



Male’ ; NMC is the central met station in Maldives. Aviation and synoptic data from all stations are collected and distributed by NMC.



Minimun and maximum temperatures are taken daily at UT C 0300 and UT C1200 respectively.



Sunshine records are taken at 1300hrs UT

• C. New cards for each day.



Daily observations like temperature, humidity, rain, wind speed and direction and visibilities are recorded.

Obs ervations

Autom atic Weather S tations



T he staions use vaisala weather transmitter WX T

• 520. It is a small and

lightweight transmitter that offers six weather perimeters in one compact package.



WX T 520 measures windspeed and direction,precipitation, atmospheric pressure, temperature and relative humidity.

• HA. Uligam

HDh.Makunudhoo R .Vaadhoo K . K aashidhoo K . Vabbinfaru K . Hulhule K . Male’

• Adh. R

angali F.Nilandhoo Dh.Hulhudheli GA.Villingili GDh.Gadhdhoo Gn.Fuahmulaku S.Hulhumeedhoo S.HHithadhoo

• Sh. Feevak

B .Dharavandhoo T h.Hirlandhoo T h.Vilufushi V.Fulidhoo L .Isdhoo

Doppler Weather R adar



Intorduction

 T

he Maldives Meteorological Service is equipped with DWSR

• 8501S radar which is the world’s most powerful S-B

and Doppler weather surveillance radar.

 DWSR

• 8501S provides the best clutter suppression and S-band

range perfomance for observing multiple long range weather pehnomena.

 T

he tansmitter provides 850 kW peak R F power pulse with duration of 0.2,0.4,1.0 and 2.0 micro seconds.

 T

he radar is currently not operational due the problem with the cooling system of the hut & software. It needs to be calibrated.

S atellite Im age receiving s ys tem

 E

S&S GE OSA T 500 ground station

 High performance system that receives and processes

downlinks from Chinese Meteorological satellite ; Fengyun-2C satellite.

 T

he satellite provides regular images of the earth, allowing forecasters to make weather predictions and to follow path of cyclones.

 T

he system components include parabolic dish, satellite receiver , Acquisition , processing and display workstation, GE OSA T 500 processing software and ME T E OR image display and analysis software.

S atellite Im age receiving s ys tem



B elow is an image acquired from GE OSA T 500 system

Global T elecom munication S ys tem

 Our main hub is located in Delhi, India.

S.Gan

• Gdh. K

aadedhdhoo

• Gdh. K

aadedhdhoo K .Hulhule’

• Hdh. Hanimaadhoo

 We receive Meteorological and ts

unam i inform ation via Global T elecommunication System (GT S)

 B

elow is a screen shot from two of our GT S terminals

Global T elecommunication System

The M ME S S I E S S IR-VIS ION F For

• recas

aster's Wor

• rkstat

ation

• n int

ntegr grat ates t thi his vas ast am amount

• unt of
• f

inf nfor

• rmat

ation

• n int

nto a

• a singl

ngle s

• system. M

ME S S IR-VIS ION pr prov

• vide

des the he F For

• recas

asters w with h a c a com

• mpr

prehe hens nsive range ange of

• f tool
• ols t

to

• di

displ play ay, m mani anipul pulat ate and c and com

• mbi

bine ne al all t the he av avai ailabl able dat data and pr a and produc

• ducts, mak

ake de decisions

• ns and

and pr produc

• duce out
• utput

puts s suc uch h as as maps aps and and for

• recas

asts. ME S S I E S S IR-AE RO e enabl nables y you t

• u to
• receive, stor
• re, di

displ play ay and pr and print nt al all the he OPME T and c and char harts ne neede ded d by by pi pilot

• ts, ae

aeronaut

• nautical

al br briefing ng

• f
• ffices, and ai

and airline ne ope

• perat

ator

• rs.

S eis m ic Network

 E

arth Quake monitoring – SeisComp3

• T

he Seiscomp 3 software is used to locate and calculate the epicenter, magnitude and other parameters . Immediately after the occurrence of an earthquake over the Indian ocean, Geological observers will locate epicenter and calculate Magnitude by using SeisComp3. We also get the earthquake information from U.S. Geological Survey & JMA.

• T

he seiscomp 3 communicates via dedicated 512kb/ s satellite link to Jakarta, Indonesia.

• T

here are two broadband seismometers in the Maldives.

S eis m

• m

eters in Maldives

• Gdh. K

aadedhdhoo

• Hdh. Hanimaadhoo

 E

arthquake m

• nitoring by CIS

N ( California Integrated S eis m ic Network )

Seismic Network

We also observe the California Integrated Seismic Network [CISN], to monitors earthquakes across the world

S ea-level data network



T he sea-level data network is established in Maldives in callobration with Hawai sea level center



T here are 3 tide gauges situated at three different locations in the Maldives.

Hawaii HD.Hanimaadhoo Hulhule S.Gan

WE NE E D HE L P

• SO DOE

S E VE R Y ONE !

 We believe there is always room for improvement.  T

he Maldives Meteorological Service is really short of trained staffs in areas like ;

• System Softwares
• Seismology
• Forecasting
• Observation
• Calibration

 Currently No staff trained in Doppler radar operations as well

as it’s maintenance.

T HANK Y OU…