lessons learned from past notable disasters new zealand part 1: floods walter hays, global alliance...

Download LESSONS LEARNED FROM PAST NOTABLE DISASTERS NEW ZEALAND PART 1: FLOODS Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA

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  • LESSONS LEARNED FROM PAST NOTABLE DISASTERSNEW ZEALANDPART 1: FLOODS Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA

  • Natural Phenomena that Cause Disasters

    Planet Earths Atmospheric-lithospheric Interactions Cause:

    Floods

  • NATURAL HAZARDS THAT HAVE CAUSED DISASTERS IN NEW ZEALAND FLOODSWINDSTORMSEARTHQUAKES VOLCANOESENVIRONMENTAL CHANGE GLOBAL CLIMATE CHANGEHIGH BENEFIT/COST PROGRAMS FOR BECOMING DISASTER RESILIENTGOAL: PROTECT PEOPLE AND COMMUNITIES

  • ELEMENTS OF RISK AND DISASTER

  • ELEMENTS OF FLOOD RISK RISK

  • RUGGED TOPOGRAPHY AND THE WAIMAKARIRI RIVER FLOODPLAIN

  • The combination of torrential rain from summer rain storms and occasional cyclones, and the steep slopes favorable for flash floods leads to opportunities for disaster.

  • FLOOD HAZARDS:

    ARE POTENTIAL DISASTER AGENTS

  • FLOOD HAZARDSTOO MUCH WATER DISCHARGED WITHIN THE DRAINAGE SYSTEM TO BE ACCOMMODATED IN THE REGIONAL WATER CYCLEINUNDATIONEROSIONSCOURMUDFLOWS

  • A DISASTER CAN HAPPENWHEN THE POTENTIAL DISASTER AGENTS OF A FLOOD INTERACT WITH THE VULNERABLE BUILT ENVIRONMENTS OF NEW ZEALANDS COMMUNITIES

  • NEW ZEALANDS CITIES

  • 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., floods, earthquakes,..) 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.

  • THE REASONS ARE . . .When it does happen, the functions of the communitys buildings and infrastructure will be LOST because they are UNPROTECTED with the appropriate codes and standards.

  • THE REASONS ARE . . .The community is UN-PREPARED for what will likely happen, not to mention the low-probability of occurrencehigh-probability of adverse consequences event.

  • THE REASONS ARE . . .The community has NO DISASTER PLANNING SCENARIO or WARNING SYSTEM in place as a strategic framework for concerted local, national, regional, and international countermeasures.

  • THE REASONS ARE . . .The community LACKS THE CAPACITY TO RESPOND in a timely manner to the full spectrum of expected and unexpected emergency situations.

  • THE REASONS ARE . . .The community is INEFFICIENT during recovery and reconstruction because it HAS NOT LEARNED from either the current experience or the cumulative prior experiences.

  • NOTABLE FLOOD DISASTERS

    FEBRUARY 13, 2004

  • FLOOD DISASTER OF 2004The flooding began on February 13, when a series of unusual summer storms that brought heavy rain and strong winds to the lower North Island.

  • FLOOD DISASTER OF 2004The floods damaged at least 19 bridges, affected water and sewer systems, and knocked out power and communications for several days.

  • FLOOD DISASTER OF 2004Instead of being beneficial to agriculture by adding rich soil, the 2004 floods destroyed crops and devastated cattle and sheep farmers.

  • FLOOD DISASTER OF 2004As a result of 2004s flooding, vegetable prices increased more than 200 percent.

  • ECONOMIC LOSS:

    ESTIMATED AT $200 million.

  • NOTABLE FLOOD DISASTERS

    SOUTH ISLAND DECEMBER 13, 2011

  • THE CAUSE: FIVE DAYS OF TORENTIAL RAINThe flood started on 12/13/2011 and ended on 12/17/2011 11:59:59 PM, a duration of 5 days. This flood was assigned a severity class 2 (i.e. this is an extreme event with an estimated recurrence interval greater than 100 years).

  • IMPACTSThe damage was widespread and in some cases spectacular, as walls of water and mud smashed through some houses and across roads, rendering them impassable, but no deaths.

  • DEC. 13 FLOODING

  • DEC. 13 FLOODING

  • DEC. 13 FLOODING

  • THE IMPACTSMore than 100 people were evacuated from their homes.Collingwood was cut off for three days after a large portion of State Highway 60 was washed away by the one-in-100-year rainfall event.

  • DEC. 13 FLOODING

  • THE IMPACTS"Nelson and Tasman faced a massive clean-up bill from the destructive torrential downpour, which produced nearly three months' rain in just 24 hours.

  • NOTABLE FLOOD IMAGES

  • HIGH DISCHARGE AFTER A STORM

  • FLOODING: WHAKATANE RIVER

  • INUNDATION

  • CHRISTCHURCH: FLOODING

  • FLOODING: SOUTH ISLAND

  • CYCLONE BOLA PASSED NEAR NEW ZEALAND : MARCH 1988

  • FLOODING AFTER CYCLONE BOLA

  • FLOODING

  • FLOOD INDUCED LANDSLIDE

  • ROAD WASHED OUT

  • NEW ZEALANDS NEXT FLOOD IS INEVITABLE---SO, START IMPLEMENTING MEASURES FOR BECOMING MORE RESILIENT TO A FLOOD DISASTER NOW.

  • THE ALTERNATIVE TO A FLOOD DISASTER IS

    FLOOD DISASTER RESILIENCE

  • NEW ZEALANDS COMMUNITIESDATA BASES AND INFORMATIONHAZARDS: GROUND SHAKING GROUND FAILURE SURFACE FAULTING TECTONIC DEFORMATION TSUNAMI RUN UP AFTERSHOCKS

  • LESSONS LEARNED ABOUT DISASTER RESILIENCEALL FLOODS PREPAREDNESS FOR ALL OF THE LIKELY FLOOD HAZARDS IS ESSENTIAL FOR DISASTER RESILIENCE

  • LESSONS LEARNED ABOUT DISASTER RESILIENCEALL FLOODS PROHIBITING THE CONSTRUCTION OF BUILDINGS AND LIFELINE SYSTEMS IN A RIVER FLOODPLAIN IS ESSENTIAL FOR DISASTER RESILIENCE

  • LESSONS LEARNED ABOUT DISASTER RESILIENCEALL FLOODS EARLY WARNING AND EVACUATION PLANS TO MOVE PEOPLE TO SAFE HAVENS ARE ESSENTIAL FOR DISASTER RESILIENCE

  • LESSONS LEARNED ABOUT DISASTER RESILIENCEALL FLOODS EFFICIENT AND TIMELY EMERGENCY RESPONSE IS ESSENTIAL FOR DISASTER RESILIENCE

  • LESSONS LEARNED ABOUT DISASTER RESILIENCEALL FLOODS TIMELY RECONSTRUCTION AND RESTORATION OF SERVICES TO NORMAL IS ESSENTIAL FOR RECOVERY AND DISASTER RESILIENCE

    More lectures at Disasters Supercourse -http://www.pitt.edu/~super1/collections/collection52.htm*****

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