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Statement of Work Statement of Work Under this contract Sanborn will perform a comprehensive range of photogrammetric mapping services including: Data Acquisition Sanborn will initiate the necessary resources for the collection of 1"=1500' color photography for an area approximately 1767 square miles. Sanborn reserves the right to support the County's aerial photography acquisition using digital sensors or analog fflrn. Our plan for this project is to use a digital sensor with our newly acquired Vexcel UltraCAM. The plan to use digital imageD- will be dependant upon successful testing and final calibration that is currently in progress. Sanbom anticipates this task to be completed prior to the optimum flying window for the County's aerial acquisition. In either case, Sanborn's quality commitment to the Count), remains the same. Sanborn will provide all ground control and supplement the network by acquiring airborne GPS data during the photography missions Sanborn ~vill complete aerial triangulation of the photo set in a soft copy environment using automatic analytical aerial triangulation procedures. Production of DEM Sanborn will produce a Digital Elevation Model (DEM) limited to the production of Orthophotography only. Sanborn will produce a DEM to support the 1-foot pkxel resolution orthophotography through a combination of autocorrelation and manual stereocompilation techniques. The DEM is a deliverable for this project and will be delivered in an ASCII formatted file. Following the completion of project aerial triangulation phase, Sanborn will produce orthoimagery for a prototype area (four-contiguous tiles) designated by the Count3-. Production of Digital Ortho Photography Sanborn will also produce new color digital orthophoto image~ at 1.0-foot pLxel resolution. Scanning the (original) aerial film negatives, incorporating the exterior orientation of the AT solution, and rectifying it to the new DEM will create the orthophotos. Sanborn will mosaic the imagery to produce a virtually seamless image database. The f-mai orthophotos w/il meet NI~LSS accuracy standards at 1" = 200' and will be delivered in either Tiff with world header fries or GeoTiff format and according to a tiling scheme agreed upon betxveen the Count3' and Sanborn. Upon final acceptance of the tiled imageD-, Sanborn will provide MrSid compressed imageD' covering the entire project area in a mutually agreed format and compression to be determined by the County and Sanborn. Sanborn will deliver metadata for all deliverable tiles in XxML format. Services Agreement between The Sanborn Map Company, Inc and Cass County, North Dakota