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Vermont Center for Geographic Information, Inc.

Vermont Center for Geographic Information, Inc. David Brotzman - Executive Director. The VT Center for Geographic Information - Overview. VCGI is a state nonprofit entity VCGI was created to support geographic data coordination and data services in Vermont

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Vermont Center for Geographic Information, Inc.

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  1. Vermont Center for Geographic Information, Inc. David Brotzman - Executive Director

  2. The VT Center for Geographic Information - Overview • VCGI is a state nonprofit entity • VCGI was created to support geographic data coordination and data services in Vermont • VCGI provides free data, facilitates networking, and helps with data development www.vcgi.org

  3. No Maps?

  4. Data Limitations • Accuracy • Statewide overage • Dynamic Resource • Cost • Completion • Never Complete • Two Phases • Initial Collection • Update

  5. Standards • Ensure Consistent Use • Ensure Clarity of Purpose • Independent Mapping Efforts • Fairness • Legality

  6. Metadata • Data About The Data • Explains Where The Data Came From • National Standard • Appropriate Use • Critical For User

  7. VT Wetlands Resources - Data • National Wetlands Inventory –NWI - Data • Source from 1:40,000 CIR to 1:80,000 Black & White Imagery • Target Mapping Unit (TMU) from ~1 - 4 or 5 Acres, Based Upon Terrain • Tiled on 1:24,000 Quads • Show “photointerperable” wetlands • Likely To Miss Smaller, Drier (Emergent) or Woodland Wetlands • Must Have One or More of the Following Three Attributes: • 1) at least periodically, the land supports predominantly hydrophytes • 2) the substrate is predominantly undrained hydric soil • 3) the substrate is non-soil and is saturated with water or covered by shallow water at some time during the growing season of each year

  8. VT Wetlands Resources - Data • VT Significant Wetlands Inventory - VTSWI - Statewide • Created BY VT ANR Using NWI Data as a Base • Estimated 25% of the Wetlands Are Missing (<3 Acres) • Show “Regulatory” wetlands • Source from 1:24,000 to 1:62,500 NWI Source Maps • Intended for Planning and Informational Use • Boundaries Generally Within “Several Hundred Meters” • Wetlands in the VSWI coverage are; • 1. Mainly Palustrine Complexes (regulatory). • 2. A Smaller Subset Define Riverine and Lacustrine Wetland Complexes (regulatory).

  9. Support Tools – Web Maps • Web Mapping Services • National • In State • Valuable Public Interface • Unassisted Review, Education, Awareness • Technology Supports Open/Secure Use • Different Levels of Access • Remote Data Maintenance • Posting Updates For Review Prior to Inclusion

  10. MassGIS

  11. USFWS Wetlands Online Mapper

  12. Kenai Peninsula – Wetlands

  13. Florida ERA Online

  14. Florida ERA Online

  15. National Interactive Mapping Tool • http://nationalmap.gov

  16. Vermont Web Mapping Service

  17. Vermont Web Mapping Service

  18. Web Map Development Costs • Application Development • Simple Data Viewing Service • Full Custom, Public/Private, Remote Edit, Update • $5K to $50+K • Startup • Initial Software Costs $15K to 30K (no partners) • Software Costs $0 to $20K (with partners) • Recommend Use Of Existing Service Providers • ANR - VCGI • Labor Costs – Dozens to Hundreds of Hours • Application and Database Design, Data Population, etc.

  19. Cost • Yearly Costs – No Partner • Software Maintenance - $0 to $25K/yr • Database Maintenance - $0 to $5K+ • Yearly Costs – w/Partner • Negotiable ($1800 and up)

  20. Summary • Data Is the ‘BIG’ Issue – (You knew that) • Use the Data and Technology Appropriately • Define the Data Standard • Create Metatdata and USE it • Consider Web Mapping As An Initial Public Interface • How will it look? • How will it be used? • What Are the Terms of Use? • You Can Get Started Today • You Have Help Available

  21. For More Information Contact VCGI: David Brotzman, Executive Director VT Center for Geographic Information, Inc. 58 South Main Street, Suite 2 Waterbury, VT 05676 802-882-3002 davidb@vcgi.org http://www.vcgi.org

  22. Thank You

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