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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
Vermont Center for Geographic Information, Inc.

David Brotzman - Executive Director


The vt center for geographic information overview
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



Data limitations
Data Limitations

  • Accuracy

    • Statewide overage

    • Dynamic Resource

    • Cost

  • Completion

    • Never Complete

    • Two Phases

      • Initial Collection

      • Update


Standards
Standards

  • Ensure Consistent Use

  • Ensure Clarity of Purpose

  • Independent Mapping Efforts

    • Fairness

    • Legality


Metadata
Metadata

  • Data About The Data

  • Explains Where The Data Came From

  • National Standard

  • Appropriate Use

  • Critical For User


Vt wetlands resources data
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


Vt wetlands resources data1
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).


Support tools web maps
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







National interactive mapping tool
National Interactive Mapping Tool

  • http://nationalmap.gov




Web map development costs
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.


Cost

  • Yearly Costs – No Partner

    • Software Maintenance - $0 to $25K/yr

    • Database Maintenance - $0 to $5K+

  • Yearly Costs – w/Partner

    • Negotiable ($1800 and up)


Summary
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


For more information
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

[email protected]

http://www.vcgi.org



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