1 workshop sustaining national meteorological services – strengthening wmo regional and global...
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Workshop Sustaining
National Meteorological
Services –
Strengthening WMO
Regional and Global
Centers
Ajith WeerawardaneDepartment of Meteorology
Colombo, Sri Lanka.
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SRI LANKA
Land Area - 65,525 Sq.km
Length of coast line – 1, 760 km
Topography – Highland massif
surrounded by vast area of lowlands
Population - 20.87 Million
Pop. Density – 309 per Sq.km
Average Rainfall – 1,815 mm
(ranges between 900 and 5,000+)
Average Temperature (lowlands)–27.5C
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Four Rain Seasons
79.5 80.0 80.5 81.0 81.5 82.05.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
0 m m
200 m m
500 m m
1000 m m
1500 m m
2000 m m
3000 m m
3500 m m
SOUTHW EST MONSOON (MAY TO SEPTEMBER)
79.5 80.0 80.5 81.0 81.5 82.05.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
0 m m
200 m m
400 m m
500 m m
700 m m
800 m m
1000 m m
3500 m m
SECOND INTERMONSOON (OCTOBER TO NOVEMBER)79.5 80.0 80.5 81.0 81.5 82.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
0 m m
200 m m
400 m m
600 m m
800 m m
1000 m m
1200 m m
1400 m m
NORTHEAST MONSOON (DECEMBER TO FEBRUARY)
79.5 80.0 80.5 81.0 81.5 82.05.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
0 mm
100 m m
200 m m
300 m m
500 m m
600 m m
700 m m
3500 m m
FIRST INTERMONSOON (MARCH TO APRIL)
SEASON Southwest Monsoon
Northeast Monsoon
First Intermonsoon
Second Intermonsoon
PERIOD May-Sep Dec-Feb Mar-Apr Oct-Nov
RAINFALL 546 mm 459 mm 260 mm 548 mm
M A M J J A S O N D J F
IM1 SW Monsoon IM2 NE Monsoon
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1. India Meteorological Department (IMD) at New Delhi2. Japan Meteorological Administration (JMA) at Tokyo
DoM of Sri Lanka use the Meteorological products of the following Regional Specialized Meteorological Centers
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1. NWP products2. satellite imagers and products3. Outgoing Long wave Radiation 4. Monsoon on set
Use following products from IMD RSMC
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1. NWP products2. High Resolution Global Spectral Model (TL 959)
Use following products from JMA RSMC
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1. Forecast Severe Weather conditions2. Improve lead-time of warnings3.Improve interaction of NMC with uses
Objectives of WMO’s Severe Weather Forecasting Demonstration Project
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Products used from ECMWF 1. EFI (Extreme Forecast Index) 2. EPS (Ensemble Prediction System)
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What we expect more from These Centers
1.Colaborative research works and share the research out puts.
2.Help for the capacity building.
3.Help to run WRF at our own Department.
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Thank you