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<br />
<br />Hazard Disclosure, Natural systems are dynamic, with seasonal changes in flood
<br />
<br />boundaries, inlet movement, erosion rates, and storm surge impacts, An important
<br />
<br />element of a hazard mitigation plan is to provide the public with accurate, relevant
<br />
<br />information on hazards, Examples of hazard disclosure are:
<br />
<br />mapping of hazards, including invemories of at~risk populations. hazardous
<br />areas, hazardous structures, and environmentally sensitive areas;
<br />
<br />. increasing awareness of the location of hazards and associated risks, through
<br />workshops, Internet sites. brochures, and other techniques to reach public
<br />officials, the business community, and the public; and
<br />
<br />. property trans3crion disclosure so that buyers are advised about the presence
<br />of kno\'m hazards.
<br />
<br />Hazard mapping is entering a new era with the growing use and application of
<br />Geographic Information Systems (GIS) technology, GIS supports the inventory and
<br />analysis of spatial data related to the location and characteristics of hazardous
<br />areas, demographic data, characteristics of
<br />the built-environment, and other factors
<br />that are necessary to the mitigation
<br />planning process, A major component of
<br />the HMPI is the technical support, training,
<br />and data sources that are provided to
<br />communities to enable them to assess
<br />local hazards and vulnerability.
<br />
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<br />GROUND~LEVATI.o~ An increasing number of communities use
<br />, . - GIS to suPPOrt hazard disclosure and to
<br />. model future impacts. Charlotte,
<br />Hazard disclosure is an integral feature of Wrightsville Mecklenburg Storm \.Vater Services
<br />Beach's local mitigation strategy, (CMSWS) has implemented an area,wide,
<br />
<br />GIS-based computer program to model all drainage systems receiving runoff from
<br />urban watersheds larger than 50 acres, The models can be used to assess the
<br />impact of proposed commercial and residential development on storm drains and
<br />floodplains,
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<br />GIS used by the CMSWS can delineate
<br />rainfall areas and model impacts on
<br />watershed flooding,
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<br />
<br />c", Hazard disciosure activities can also include advising
<br />the public about changes in natural systems, In this
<br />category, is the North Carolina Division of Coastal
<br />Management's (DCM) program to produce erosion
<br />rate maps for each segment of the coast. Average
<br />rates of erosion, based on 50 years of records, have
<br />important implications for land use planning,
<br />
<br />
<br />Hazard mapping and hazard notification will con,
<br />:J
<br />tinue to be important features in state and local
<br />mitigation strategies, Their combined roles were
<br />recognized by the ,",orth Carolina Disaster Recovery
<br />Task Force as a First step in reducing future losses,
<br />which recommended "the initiation of a Legislative
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<br />Augusl1999
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