CYCLONE:EFFECT &MANAGEMENT

BY:SRUTISUDHA MOHANTY

TWO IMPORTANT EXAMPLES

1999 SUPER CYCLONEPHAILIN 2013

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

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

EFFECTS OF CYCLONESEFFECTS OF CYCLONES

First element

STORM STORM SURGESURGE

Flooding in coastal areas

Erosion of beach

Loss of soil fertility from

saline intrusion

Damage to structures

EFFECTS OF CYCLONESEFFECTS OF CYCLONES Second element

Wind

Damage to structures

Loss of power/communicatio

n

Injuries & loss of life

Destruction of crops,

Vegetation,livestock

EFFECT OF CYCLONESEFFECT OF CYCLONES Third element

Torrential rain

Destruction of crops,

vegetaton,livestock

Contamination of water

supply system

Land subsidence

Flooding of inland area

DISASTER MANAGEMENT DISASTER MANAGEMENT Disaster Prevention, Mitigation & Preparedness

are better than Disaster Response in achieving the goals &

objectives of the International Decade for Natural DisasterReduction(IDNDR)

DISASTER AND MANAGEMENT

Management of Cyclone

Structural measures Construction of cyclone

resistant(RCC)buildings cyclone shelters,road

links,culvert,bridges,canals,

embankment,communication,power transmission networks,transport

Non-structural measuresEarly warningManagement of coastal

zonesAwareness generationMock drill practiceMedical preparednessForecasting by GIS

Important areas of concernHabitation in vulnerable araes

Warning measures &community

Natural Protection Measures

Reduction Measures

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

NATURAL PROTECTION MEASURESCurrent status-

Destruction of Mangroves,

Global warming Do's:-

Mangroves Protection in coast line

river mouth protection(embankment)

better drainage system

Impact of global warmingFuture tropical

cyclones(typhoons/hurricanes):more intense,large peak wind speedsmore heavy precipitationWith a doubling of present

atmospheric conc. Of CO2 -increase of 40-50% in the destructive potential of hurricanes

TREE PRUNER

LIFE BOAT

BRANCH CUTTER

INTERESTING FACTS INTERESTING 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

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

.........so on