GIS as an informer for critical decision making

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GISas an informer for critical decision making

• By Jose C B de Castro
• Department of Disaster Management , BVI

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GIS- Geographic Information System

• Layers of information
• about a place
• www.gis.com

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Hardware and Software Needs

• Hardware
• PCs/Macs
• Server
• GPS
• Handheld
• Digitizer
• Software
• ESRIindustry standard Arcview
• Other manufacturers

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The System

• Collect Info
• Feed info to central database
• Info at your finger tips
• All decisions should be advised by central
  database
• Inform public and private developments
• Result Sustainable Development
• Continuous updating and input of new data

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1st stepCollect Info

• Two Parts
• First establish an accurate base
• Lower layers of information
• Info later collected are overlaid on base
• Set the protocols for how info is collected,
  stored and used
• Also collect associated metadatacataloging
• use Intl standards
• Crucial in sharing info

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Base maps Assoc. data

• Cadastral
• Ownership
• Land use/Zoning
• Size (Acreage)
• Buildings
• Building Use
• No. of Floors

• Contours
• Ht above sea level
• Roads
• Road Names
• Start and End points
• Coastal Resources
• Mangroves
• Coral Reefs
• Other costal organisms

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MetadataCatalogue

• A Separate database that describes the data
• Some metadata fields
• Title
• Creator
• Description
• Date of data
• Coverage
• Format
• Degree of accuracy
• Source

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Who should collect the data?

• All stakeholders should collect and share all
  data
• Some data is confidential
• eg. Turtle Nesting Sites

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What data should to be collected?

• As much data should be inputted and cataloged
  according to standards set
• Each department must prioritize the input of data

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Examples of datasets

• Department of Disaster Management
• Hazard maps
• Disasters
• Critical Facilities
• Emergency Shelters
• Survey Dept
• Cadastre
• Conservation Fisheries
• Coastal Resources
• Oil Spills

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Examples contd

• Police
• Crime sitesby type
• Criminals residence
• Fire Rescue
• Instances of Fireby type
• Non-fire callsby type
• Health
• Potential Health risks
• Sites of outbreaks
• Hazardous material locations
• Businesses that require a health certificate for
  operations

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Where should the data be stored?

• The central GIS database and associated
  meta-database should be on a remote dedicated
  server
• The BVI has a National GIS Committee
• The NGIS committee guides the growth and
  development of the Govts GIS
• Each dept, however, is responsible for maintain
  ace of their data sets

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How should the data be used?

• Analysis
• What critical facilities are at risk to natural
  hazards?
• Where were most of the burglaries last month?
• How much forest is in each watershed?
• How many oil spills occurs in a specific area per
  year
• How have the coastal resources changed over the
  last ten years?
• Which schools are within 500 feet of a liquor
  store?

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Typical Analysis Map
This map shows the potential acoustical impacts
on the surrounding area of a particular type of
rocket engine.