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Cyclone

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

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Cyclone

  1. 1. CYCLONE:EFFECT &MANAGEMENT BY:SRUTISUDHA MOHANTY
  2. 2. TWO IMPORTANT EXAMPLES 1999 SUPER CYCLONE PHAILIN 2013
  3. 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. 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. 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. 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. 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. 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)
  9. 9. DISASTER AND MANAGEMENTDISASTER AND MANAGEMENT
  10. 10. 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
  11. 11. Important areas of concern  Habitation in vulnerable araes  Warning measures &community  Natural Protection Measures  Reduction Measures
  12. 12. 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
  13. 13. NATURAL PROTECTION MEASURES Current status- Destruction of Mangroves, Global warming Do's:- Mangroves Protection in coast line river mouth protection(embankment) better drainage system
  14. 14. 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
  15. 15. TREE PRUNERTREE PRUNER LIFE BOATLIFE BOAT BRANCHBRANCH CUTTER
  16. 16. 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
  17. 17. 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

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

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