lessons learned from past notable disasters australia part 2: cyclones walter hays, global alliance...
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LESSONS LEARNED FROM PAST NOTABLE DISASTERSAUSTRALIAPART 2: CYCLONES Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA
NATURAL HAZARDS THAT HAVE CAUSED DISASTERS IN AUSTRALIAFLOODSCYCLONESEARTHQUAKES WILDFIRESENVIRONMENTAL CHANGE GLOBAL CLIMATE CHANGEHIGH BENEFIT/COST FROM BECOMING DISASTER NRESILIENTGOAL: PROTECT PEOPLE AND COMMUNITIES
Natural Phenomena that Cause Disasters
Planet Earths atmospheric-hydrospheric-lithospheric interactions create situations favorable for CYCLONES
A DISASTER is --- --- the set of failures that overwhelm the capability of a community to respond without external helpwhen three continuums: 1) people, 2) community (i.e., a set of habitats, livelihoods, and social constructs), and 3) complex events (e.g., cyclones, floods,...) intersect at a point in spaceand time.
Disasters are caused by single- or multiple-event natural hazards that, (for various reasons), cause extreme levels of mortality, morbidity, homelessness, joblessness, economic losses, or environmental impacts.
SEVERE WINDSTORM HAZARDS
HIGH POTENTIAL LOSS EXPOSURES IN A CYCLONEA communities people, property, essential and critical infrastructure, business enterprise, government centers, crops, wildlife, and natural resources.
HAZARDS OF A SEVERE WINDSTORM (AKA POTENTIAL DISASTER AGENTS)WIND FIELD (CLOCKWISE DIRECTION; CAT 1 (55 mph) TO CAT 5 (155 mph or greater)STORM SURGEHEAVY RAINFALLLANDSLIDES (MUDFLOWS)COSTAL EROSIONTORNADOES (SOMETIMES)
WIND PENETRATING BUILDING ENVELOPESEVERE WINDSTORMSUPLIFT OF ROOF SYSTEM FLYING DEBRISSTORM SURGE IRREGULARITIES IN ELEVATION AND PLAN
DESIGN PROBLEMS FLOODING AND LANDSLIDES CAUSES OF DAMAGEDISASTER LABORATORIES
AUSTRALIAS COMMUNITIESDATA BASES AND INFORMATIONHAZARDS: GROUND SHAKING GROUND FAILURE SURFACE FAULTING TECTONIC DEFORMATION TSUNAMI RUN UP AFTERSHOCKS
LESSONS LEARNED ABOUT DISASTER RESILIENCEALL CYCLONES PREPAREDNESFOR THE EXPECTED AND UNEXPEDTED IS ESSENTIAL FOR DISASTER RESILIENCE
LESSONS LEARNED ABOUT DISASTER RESILIENCEALL CYCLONES EARLY WARNING IS ESSENTIAL FOR EVACUATION AND PREPARATION OF THE LAST LINE OF DEFENSE, WHICH ARE ESSENTIAL FOR DISASTER RESILIENCE
LESSONS LEARNED ABOUT DISASTER RESILIENCEALL CYCLONES TIMELY EMERGENCY RESPONSE IS ESSENTIAL FOR DISASTER RESILIENCE
SOME OF AUSTRALIAS WORST CYCLONESCyclone TRACY: 1974Cyclone LARRY: 2006Cyclone HAMISH: 2009
CYCLONE TRACYS PATH
IMPACTS OF CYCLONE TRACYCyclone Tracy devastated the city of Darwin in Australias Northern Territory from Christmas Eve to Christmas Day, 1974.
IMPACTS OF TRACYTracy killed 71 people, caused AS837 million in damage (1974 dollars) and destroyed more than 70 percent of Darwin's buildings, including 80 percent of the houses.
IMPACTS OF TRACYMore than 30,000 of Darwins 47,000 inhabitants were evacuated from Adelaide, Whvalla, Alice, Springs, and Sydney.Many never returned to Darwin.
AFTER TRACYDarwin was rebuilt using modern materials and updated building practices that incorporated wind engineering
Larry made landfall in far North Queensland close to Innisfail on 20 March 2006 as a Category 4 with wind gusts reaching 240 kilometers per hour (150 mph), and dissipating over land soon afterward.
CYCLONE LARRY: MARCH 15-20, 2006
CYCLONE LARRYS TRACK: MARCH 15-20, 2006
LARRYS IMPACTSThroughout Queensland, Cyclone Larry resulted in A$1.5 billion ($1.1 billion USD) in damage, making Larry, at that time the costliest tropical cyclone to ever impact Australia, surpassing 1974s Cyclone Tracy loss.
CYCLONE HAMISH: MARCH 4-11, 2009
CYCLONE HAMISH TRACK MARCH 4-11, 2009
CYCLONE HAMISHS IMPACTS
Hamish was a CAT 4 storm with 290 kph (175 mph) winds Coal exports were disruptedThe tourist industry was slowed. It caused a major oil spill.
HEAVY RAINFALLHamish produced heavy rainfall over North Queensland with accumulations of 300 mm (12 in) in some areas. Mackay recorded 284 mm (11 in) in 2 days, and in combination with high tide, Hamish produced a 6.3 m (20.6 ft) tide in Mackay, flooding some streets.
CYCLONE HAMISH: OIL SPILL IMPACTS BEACHES
THE NEXT CYCLONE SEASON IS ON THE WAYCYCLONE DISASTER RESILIENCE IS NOT AN IMPOSSIBLE DREAM!
LESSONS LEARNED ABOUT DISASTER RESILIENCEALL CYCLONES RECOVERY AND RECON-STRUCTION IS ABOUT KNOW-ING WHAT TO DO DIFFFERENTLY WHEN START-ING OVER AGAIN.
More lectures at Disasters Supercourse -http://www.pitt.edu/~super1/collections/collection52.htm*******