Gis data availability survey
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GIS Data Availability Survey. Highlights (preliminary observations) Large number of data producers Handful of 1 st generation delivery orders in progress All agree to supply data for flood mapping Actual data formats, projection, & datum will vary

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GIS Data Availability Survey

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Gis data availability survey

GIS Data Availability Survey

  • Highlights (preliminary observations)

    • Large number of data producers

    • Handful of 1st generation delivery orders in progress

    • All agree to supply data for flood mapping

    • Actual data formats, projection, & datum will vary

    • All data not necessarily off-the shelf but are derivable

    • Previous two observations will be challenges for efficient base mapping collection process


Gis data availability survey1

GIS Data Availability Survey

  • Highlights (observed comments/issues)

    • Use local tiling schemes (example: 1”=400’ scale, 10k x 10k tile for base map)

    • Use English units of measurement

    • Give ample time to prepare data for CGIA


Gis data availability survey2

GIS Data Availability Survey

  • Survey Background

    • Primarily based on 1997 state-wide county survey conducted by SGUC/NCDOT and the NSGIC/SMAC NSDI Framework Data Survey

    • Involves input from the Statewide Mapping Advisory Committee (SMAC)

    • Mailed to counties and municipalities in the 6 eastern river basins


Gis data availability survey3

GIS Data Availability Survey

  • Survey process . .

    • Use and update existing Framework Data contacts database (115 reps statewide)

    • Call contacts once scoping meeting is scheduled

    • Fax or email survey instrument

    • Schedule appointment with contact

    • Determine if other local contacts exist


Gis data availability survey

GIS Data Availability Survey

  • Survey Specifics

    • Comprehensive – asks detailed questions about hardware, software, data distribution, and related policy

    • Contains specific questions for base map data layers (county boundaries, orthophotography, hydrography, etc.)

    • Survey responses are input into a computer program tool…


Gis data availability survey

NC Floodplain Mapping Program

Computer program designed to store survey information


Gis data availability survey

  • Computer Program Background

    • Developed by Dewberry & Davis LLC

    • Created as a way to log survey responses in a computer database

    • Stores data in Microsoft Access

    • Format and questions are identical to mailed survey


Gis data availability survey

Some results from the survey…


Survey status counties

Survey Status - Counties


Orthophotography status

Orthophotography Status


Transportation status

Transportation Status


Cadastral status

Cadastral Status


Surface waters status

Surface Waters Status


Elevation status

Elevation Status


Survey status municipalities

Survey Status - Municipalities

Burlington

Carrboro

Chapel Hill

Elizabethtown

Garner

Graham

Jacksonville

Knightdale

Morrisville

North Topsail Beach

Princeville

Rocky Mount

Rolesville

Tarboro

Wake Forest

Zebulon

Camp Lejeune


Next steps

Next Steps

  • Complete surveys for 6 basins – Jan 31

  • Enter all results into database – Jan 31

  • Showcase results

    • Web Map/Data Site, Reports, Other?

  • Survey 11 remaining basins – June 30


Gis survey scoping team

GIS Survey Scoping Team

Jeff Brown

David Giordano

Tim Johnson

Zsolt Nagy

Ken Shaffer

Tom Tribble

Terry Ellis

Forrest Robson

Bill Miller

Rob Allen

Steve Morris

James Sanborn

Sue Hoegberg


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