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Vermont Center for Geographic Information, Inc.
David Brotzman - Executive DirectorDavid 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
VCGI provides free data, facilitates networking, and helps with data development
www.vcgi.org
No Maps?
Data Limitations
Accuracy Statewide overage Dynamic Resource Cost
Completion Never Complete Two Phases
Initial Collection Update
Standards
Ensure Consistent Use Ensure Clarity of Purpose Independent Mapping Efforts
Fairness Legality
Metadata
Data About The Data Explains Where The Data Came From National Standard Appropriate Use Critical For User
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 - 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 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
MassGIS
USFWS Wetlands Online Mapper
Kenai Peninsula – Wetlands
Florida ERA Online
Florida ERA Online
National Interactive Mapping Tool
http://nationalmap.gov
Vermont Web Mapping Service
Vermont Web Mapping Service
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 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
Contact VCGI:
David Brotzman, Executive Director
VT Center for Geographic Information, Inc.
58 South Main Street, Suite 2
Waterbury, VT 05676
802-882-3002
http://www.vcgi.org
Thank You