CLIMATE CHANGE IN MALAYSIA

3. What is Climate
Change?
Climate change refers to any significant change in
the measures of climate lasting for an extended
period of time. In other words, climate change
includes major changes in temperature,
precipitation, or wind patterns, among other
effects, that occur over several decades or longer.

5. Located near the equator(climate is categorized equatorial)
The average rainfall is 250 centimetre a year
The average temperature is 27 °C
The climates of the Peninsula and the East differ

8. The Southwest Monsoon
-From late May to September
-Originating in China and the North Pacific
The Northeast Monsoon
-From November to March
- Originates from the deserts of Australia
Malaysia faces two monsoon winds seasons:

9. •Expressed as the amount of rainwater that
accumulated water depth on a flat surface.
•Measured to the nearest 0.25 mm(1 L / m² =
1 mm).
•Place rain water less than 254 mm (10
inches) a year is called a desert
•Rainfall is more than 510 mm/year needed
for agricultural purposes.
•>2540 mm of rain per year, wild plants can
be very fertile so that threaten crops.

10. Exposed areas :
•East coast of Peninsular Malaysia
•Western Sarawak
•Sabah & Sarawak
(A) East coast of Peninsular Malaysia ( November to January)
(B) The pattern on the west coast of Peninsular Malaysia (October
to November) & (April to May)

11. New Moon Phenomenon
Perigean Spring Tide :
•Sun & Moon are aligned together
•Gravity affects is two times
high/strong
•Moon is between the earth
and sun
•Moon is close to the sun

12. Normal speed/frequency : 5 knots or 10 km / h
The wind storm : speeds of around 50 knots or 100 miles/hr
The hurricane : speeds 200 knots or 360 miles per hour
Blast of cold air
(monsoon
surges) - low
pressure systems
or cyclones -
producing strong
winds in the
South China Sea
and heavy rain
Predominant winds speeds : 20 knots (consistent)
State-land of the east coast of Peninsular Malaysia >30
knots during intense surge
Northeast Monsoon

13. Urban area(kuala lumpur)

14. Average rainfall in kuala
lumpur

15. Past story rainfall in kuala lumpur
 Since 1990 yearly average rainfall displayed an upward trend.(before
= fluctuated trend)
 Due to rainfall changing
Occurrances drier enviroment observed
 January- March and June-Ogos especially in afternoon and late
evening (light rainfall intensity)

16. Wetter environment
 July-November early morning trigger water-hazard (flash flood)
Changing trend in urban rainfall
 Increased the patches of heat island with urban core (urban heat
island)
Temperature urbanized area than temperature observed at
surrounding and periphery areas
The changes that observed in rainfall stations could also be due to the
effect of global warming.

18.  The unusual and prolonged
dry season and water
shortages
especially in Selangor and the
Klang Valley.
 The unexpected bad weather
that
contributed to the downing of
AirAsia flight from Surabaya to KL
(see the weather map below,
hours after the incident occurred)

19.  The year-end freak windstorm that blew off
roof-tops in Balik Penang, Penang
 The mini-tornadoes that caused havoc in Kedah
(and the water spout in Penang)

21. 2014–15 Malaysia floods
Date 15 December 2014 – 3 January 2015
Location Johor, Kedah, Kelantan, Negeri
Sembilan, Pahang, Perak, Perlis,Sab
ah, Sarawak, Selangor andTerengg
anu
Deaths 21 killed
[1]
Property damage $560 million
[2]

22. Occur frequently in this country on
1931, 1947, 1954, 1957, 1967
and 1971,1998,2006,2007 & 2014
ROUGHLY
RECORDS
ON
DECEMBER
2014
Kelantan,
Terengganu, Pahang,
Perlis, Kedah, Pulau
Pinang, North Perak,
South Selangor &
Negeri Sembilan :
>60% averages value
Kelantan,
Terengganu and
Pahang recorded
monthly total
rainfall :
>1200 mm.
The highest rainfall
amount was
recorded at Sibu:
584.0 mm
The highest
number of rain
days were 27 days
recorded at Kota
Bharu

25. STUCTURAL
 the construction of artificial structures such as dams,
reservoirs, embankments, levees, retention ponds, diversion
channels.
 Constructing an underground drain at Georgetown
 the construction of temporary retention ponds where
low‐lying areas along rivers are usually converted into
retention ponds.
 dredging and deepening major river channels at Teluk
Intan.
 construction diversion channels
 Embankments.
NON STUCTURAL
 The government should air public awareness and
educational programmes related to flood control over the
media.