cyclones , its effect and management in India , examples of two very severe super cyclones

1. CYCLONE:EFFECT &MANAGEMENT
BY:SRUTISUDHA MOHANTY

2. TWO IMPORTANT
EXAMPLES
1999 SUPER CYCLONE
PHAILIN 2013

3. 1999 ODISHA SUPER CYCLONE1999 ODISHA SUPER CYCLONE
(Oct 25-31;1999)(Oct 25-31;1999)

Most deadly cyclone of India

Originated as a depression on 25th
Oct;99, 550km east
of the PortBlair with Tidal surge-6m

Hit the coast of India -29th
Oct;99. Wind speed-
300kmpH

1.89crores of people and millions of livestocks
perished.14 distircts of odisha were affected, mainly
Cuttack,Puri,Paradip

LESSON-emphasis shifted from CONVENTIONAL
approach of RELIEF,RECONSTRUCTION &
REHABILITATION to PLANNING,PREVENTION &
PREPAREDNESS

4. VSCS PHAILIN(Oct 8-14;2013)VSCS PHAILIN(Oct 8-14;2013)

Second most intense cyclone that crossed India

Originated from a remnant cyclonic circulation from the South
China Sea

Wind Speed-200 to 250kmpH

Affected area -Odisha & AndhraPradesh

More than 9lakh people had been evacuated.It is India`s largest
evacuation for last 23 years

Resulting in large scale flooding,damage,strong gale wind,storm
surge—coastal inundation

LESSONLESSON- WE CANT PREVENT BUT MITIGATE THE CYCLONIC
EFFECT

5. EFFECTS OF CYCLONESEFFECTS OF CYCLONES

First element
STORMSTORM
SURGESURGE
STORMSTORM
SURGESURGE
Flooding in coastal
areas
Flooding in coastal
areas
Erosion of beachErosion of beach
Loss of soil fertility
from
saline intrusion
Loss of soil fertility
from
saline intrusion
Damage to structuresDamage to structures

6. EFFECTS OF CYCLONESEFFECTS OF CYCLONES

Second element
WindWind
Damage to structuresDamage to structures
Loss of
power/communication
Loss of
power/communication
Injuries &loss of lifeInjuries &loss of life
Destruction of crops,
Vegetation,livestock
Destruction of crops,
Vegetation,livestock

7. EFFECT OF CYCLONESEFFECT OF CYCLONES

Third element
Torrenti
al rain
Torrenti
al rain
Destruction of crops,
vegetaton,livestock
Destruction of crops,
vegetaton,livestock
Contamination of water
supply system
Contamination of water
supply system
Land subsidenceLand subsidence
Flooding of inland
area
Flooding of inland
area

8. DISASTER MANAGEMENTDISASTER MANAGEMENT

Disaster Prevention, Mitigation & Preparedness are
better
than Disaster Response in achieving the goals & objectives
of the International Decade for Natural
DisasterReduction(IDNDR)

10. DISASTER AND MANAGEMENTDISASTER AND MANAGEMENT

11. Management of Cyclone
Structural measures

Construction of cyclone
resistant(RCC)buildings

cyclone shelters,road
links,culvert,bridges,cana
ls,

embankment,communica
tion,power transmission
networks,transport
Non-structural measures
Early warning
Management of coastal
zones
Awareness generation
Mock drill practice
Medical preparedness
Forecasting by GIS

12. Important areas of concern

Habitation in vulnerable araes

Warning measures &community

Natural Protection Measures

Reduction Measures

13. Warnings are issued to State Govt officials in 4 stages
i.e, 1st
: PRECYCLONE WATCH-72hrs in advance
2nd
:CYCLONE ALERT-48hrs in advance
3rd
:CYCLONE WARNING-24hrs in advance
4th
:POST LANDFALL OUTLOOK-12hrs in advance

14. NATURAL PROTECTION MEASURES
Current status-
Destruction of Mangroves,
Global warming
Do's:-
Mangroves Protection in coast line
river mouth protection(embankment)
better drainage system

15. Impact of global warming
Future tropical
cyclones(typhoons/hurricanes):
more intense,
large peak wind speeds
more heavy precipitation
With a doubling of present atmospheric
conc. Of CO2 -increase of 40-50% in the
destructive potential of hurricanes

16. TREE PRUNERTREE PRUNER
LIFE BOATLIFE BOAT
BRANCHBRANCH
CUTTER

17. INTERESTING FACTSINTERESTING FACTS

29th
Oct-- National Day for Disaster Reduction &
Odisha Disaster Preparedness day

Odisha-most affected by SCS & VSCS & second- A.P

75% of total worldwide TC occurs in BOB for last 300yrs

Principal months- March & November

East coast-TN,AP,Odisha,WB west coast-
Gujurat,karnataka,pondicherry,Goa

Mock drills are done on 19th
June in all cyclone shelters

18. INDIAN ORGANISATIONS FOR CYCLONE
IMD (Indian Meteorological Department)
RSMC{ Regional specialised Meteorological Centre(tropical
cyclones),New Delhi}
NDMA (National Disaster Management Authority)
Disaster Rapid Action Force