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xi 'Vii'MR INDIAN RIVER COUNTY, FLORIDA (W MEMORANDUM TO: Joseph A. Baird, County Administrator THROUGH: (&er_m0_y,Assistant to County Administrator FROM: Will Rice, Manager, GIS Department DATE: June 17, 2013 SUBJECT: 2014 Oblique Aerial Imagery Acquisition Project DESCRIPTION AND CONDITIONS Aerial photographs are used by County staff on a daily basis to provide information on presence or absence and condition of natural and man-made features throughout Indian River County. For the past decade, high resolution vertical orthoimagery has been used by staff in conjunction with Computer Aided Design (CAD) and Geographic Information Systems (GIS) software for both photo interpretive and planimetric mapping tasks. More recently, a newer type of aerial imagery, oblique aerial imagery acquired by the company Pictometry, Inc., has proved valuable in providing additional information and detail not available in the traditional vertical aerial imagery. Staff proposes the acquisition of low altitude, high resolution, oblique aerial imagery in January 2014 for the populated eastern half of Indian River County. Oblique aerial imagery, aerial photographs taken with the camera axis at an angle,provides side and profile views of features that are often more easily identified compared to the vertical view provided by vertical aerial imagery. Also, objects that are not visible in vertical aerial imagery can often be detected and identified using oblique imagery. For example, houses or other structures that are obscured by heavy tree canopy in vertical imagery can often be detected and identified using oblique aerial images. Pictometry International Corporation is a firm that specializes in acquiring oblique aerial imagery. Pictometry oblique aerial imagery provides the "Birds Eye View" aerial photographs found on the Microsoft Bing website. Pictometry has had aerial imagery contracts with 49 out of 67 Counties in the State of Florida. Current contracts include projects with Brevard, St. Lucie, Broward, Palm Beach, and Miami-Dade County Property Appraisers. Staff proposes contracting with Pictometry to acquire oblique aerial imagery for the eastern half of Indian River County. The area of coverage for the proposed project is 273 square miles and the specific limits of the project are shown in Attachment 1. Each area in the project area would be imaged in 5 different directions, north, south, east, and west, and a vertical view at approximately a 3" ground resolution. The specific deliverables for the project are listed in Section A. Deliverables for the project include a digital image library containing the newly acquired oblique aerial imagery and (W unlimited licenses of Pictometry's Electronic Field Study (EFS) software. The Pictometry EFS software is specialized software that is used for viewing and working with the oblique imagery. A concern of staff is making sure that the oblique imagery, once acquired, is made available and Page 1 of 2 69