Presentation on theme: "2008 NAIP Orthoimagery Update Chris Cialek MN Land Management Information Center May 7, 2008."— Presentation transcript:
2008 NAIP Orthoimagery Update Chris Cialek MN Land Management Information Center May 7, 2008
Agreement Shared-funding agreement to provide state coverage of color digital aerial photographs in 2008 Brokered through the USDAs Farm Service Agency (FSA) as part of its National Agriculture Imagery Program (NAIP) Eight state agencies are helping to provide states share to fund the project
Product Specifications Full statewide coverage 1-meter resolution (options may exist for higher resolution data cost-sharing partnerships) Digital, four band camera: red, green, blue, near- infrared (NIR) Orthorectification using ground control coordinated by MnDOT Two products will be delivered: Compressed county mosaics Natural color (no NIR in this format) JPEG2000 format Delivery likely to begin in September 2008 Uncompressed quarter-quadrangle files Four bands: red, green, blue and NIR GeoTIFF format Delivered as quality-control is completed, likely during the first quarter of 2009
Control Targets MnDOT establishing control point network to assure accuracy Contributors: MnDOT>100 points 80 counties~300 points (11 completed) Accuracy Contracted: 6 meters Anticipated (MnDOT): 4-5 meters
Financials Final accepted bid price$1,329,322.50 Federal portion$923,322.50 State portion$406,000.00 Number of project square miles87,328 Total cost per square mile$15.22 Federal cost per sq mi$10.57 State cost per sq mi$4.65
Recent Developments FSA will allow early flights over six northeastern counties – Cook, Lake, St. Louis, Carlton, Koochiching and Itasca – in hopes of collecting leaf-off imagery. Weather conditions will largely dictate how successful this effort will be. In addition to providing leaf-off orthoimagery for the Arrowhead, SURDEX is considering flying the region at a lower elevation to produce two-foot resolution orthoimagery, in addition to the federally-contracted one-meter product. Incremental cost of providing the higher resolution product is about $15.00 per square mile. If you think your county or municipality might be interested in partnering in this higher resolution buy-up, or if you have questions about the project, please contact Minnesotas NAIP state liaison, Chris Cialek, as soon as possible.
Schedule Image Acquisition June JulyAugSeptOctNovDecJanFebMarAprilMay Compressed County Mosaic Full Resolution Quarter Quads Quality Assurance Partners