Aerial 2018 SID
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>Product: This orthoimagery data set includes 3-inch 8-bit 4-band (RGBN) digital orthoimage mosaics in MrSID format (20:1 compression). </SPAN></P><P><SPAN>Geographic Extent: The AOI covers approximately 28 total square miles of the City of Salinas in the State of California. </SPAN></P><P><SPAN>Dataset Description: City of Salinas, CA 2018 Orthoimagery project called for the planning, acquisition, processing, and derivative products of imagery data to be collected at a ground sample distance (GSD) of 0.25 foot. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Ortho Specification, Version 1.0. The data were developed based on a horizontal      projection/datum of NAD83 (2011) California State Plane Coordinate System, Zone 4, US Survey Feet. Orthoimagery data were delivered as stereo imagery pairs in GeoTIFF format, 131 individual 0.25-foot 2,640 feet x 2,640 feet 8-bit, 4-band (RGBN) GeoTIFF tiles, and a 0.25-foot 8-bit, 4-band (RGBN) 20:1 compressed MrSID mosaic. Ground Conditions: Aerial photography was captured during the summer of 2018, while no snow was on the ground and rivers were at or below normal levels. In order to post process the imagery data to meet task order specifications and meet horizontal accuracy guidelines, Quantum Spatial, Inc. utilized a total of 16 surveyed control points throughout the project area to assess the horizontal accuracy of the data. These checkpoints were not used to calibrate or post process the data.</SPAN></P></DIV></DIV>
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