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The Maine GeoLibrary, in cooperation with the Maine Office of GIS is in its third year of a projected five year acquisition. This years project will complete acquisition in all of Hancock county and approximately 1/3rd of Penobscot county. There are 16 communities participating this year. Buying up to 3" resolution imagery is the City of Bangor. Buying up to 6" resolution Imagery are Bar Harbor, Castine, Cranberry Isles, Dedham, Ellsworth, Mount Desert, Veazie, Brewer, Hampden, Old Town, and Orono. Buying up to 12" resolution imagery are Orland, Sorrento, Swans Island and Trenton.
We know that in 2012 the town of York experienced a savings of $26,000 over a previous acquisition in 2005 for the same quality data. In the first three years of this program 67 communities have purchased higher resolution imagery. If we assume that on average each community saves just $20,000 by participating in this joint purchasing effort then collectively these towns will have saved $1,340,000.
For more information on the program check out our links below. To find out how your community can participate in the program contact Michael Smith or Joseph Young
Maine GeoLibrary Ortho Imagery Program Brochure (Four-Page)
Maine GeoLibrary Ortho Imagery Program cost summary (One-Page)
Maine GeoLibrary Ortho imagery Program return on investment findings (One-Page)
Maine GeoLibrary Ortho imagery Program summary (Postcard)
Maine GeoLibrary Ortho imagery Program slide deck (Power Point)
Comparison of Ortho imagery resolutions (Power Point)
NSGIC brochure "Justifying the Cost of Authoritative Imagery"
Earth Imaging Journal article "Why Buy?" Dec. 2012
Kennebec Journal article "Precision aerial photography" Jan 5 2013
Current Status Map:
The Woolpert Portal for imagery review and QA/QC
Would you like to participate? Contact Joseph Young ortho imagery program manager for more information. Voice Phone 207-624-2664
Maine GeoLibrary Ongoing Aerial Photography Update Proposal
People across Maine use spatially-referenced aerial photography (known as ortho imagery) for professional and personal uses every day. The information must be current and high quality to be useful. Therefore, in 2011 the Maine GeoLibrary's Ortho Imagery Subcommittee developed a proposal for updating the states imagery in five year cycles. with two levels of detail 24" resolution in organized communities and 1meter resolution in unorganized communities. The proposal divides the state into groups of towns with the timing of updates being determined by the estimated rate of change and development. The proposal recommends buy-up options for groups of towns so they may purchase higher resolution ortho imagery. The cost for the statewide base program on a 5 year cycle is estimated to be 8 cents per acre for a total of approximately $450,000 per year.
User testimonials can be found at: http://www.maine.gov/geolib/orthosurveyresults.htm
Examples of how ortho imagery is used in Maine:
To read about the 2003-2005 $1.3M high resolution ortho photography project conducted by the GeoLibrary Board, see Summary of acquisition activity 2003-2005.
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