All individual tile images and the resulting mosaic were rectified in the UTM coordinate system, NAD 83, and cast into a single predetermined UTM zone. The mosaic may cover all or portions of an individual final product. The DOQQs are geotiffs, and the area corresponds to the USGS topographic quadrangles.ĬCMs are generated by compressing digital ortho quarter quadrangle image tiles into a single mosaic.
Each individual image tile within the mosaic covers a 3.75 x 3.75 minute quarter quadrangle plus a 300 meter buffer on all four sides. NAIP imagery products are available either as digital ortho quarter quad tiles (DOQQs) or as compressed county mosaics (CCM). The default spectral resolution is natural color (Red, Green and Blue, or RGB) but beginning in 2007, some states have been delivered with four bands of data: RGB and Near InfraredĬontractually, every attempt will be made to comply with the specification of no more than 10% cloud cover per quarter quad tile, weather conditions permitting.Īll imagery is inspected for horizontal accuracy and tonal quality.īack to Top What is the format of NAIP imagery?
NAIP imagery is acquired at a one-meter ground sample distance (GSD) with a horizontal accuracy that matches within six meters of photo-identifiable ground control points, which are used during image inspection. Click here for an interactive status map of NAIP acquisitions from 2002 - 2015.īack to Top What are NAIP Specifications? 2008 was a transition year, and a three-year cycle began in 2009. Beginning in 2003, NAIP was acquired on a 5-year cycle. NAIP projects are contracted each year based upon available funding and the FSA imagery acquisition cycle. Access a list of NAIP Information and Distribution Nodes. A detailed study is available in the Qualitative and Quantitative Synopsis on NAIP Usage from 2004 -2008. NAIP is used by many non-FSA public and private sector customers for a wide variety of projects. This "leaf-on" imagery is used as a base layer for GIS programs in FSA's County Service Centers, and is used to maintain the Common Land Unit (CLU) boundaries. NAIP is administered by the USDA's Farm Service Agency (FSA) through the Aerial Photography Field Office in Salt Lake City. A primary goal of the NAIP program is to make digital ortho photography available to governmental agencies and the public within a year of acquisition. The National Agriculture Imagery Program (NAIP) acquires aerial imagery during the agricultural growing seasons in the continental U.S. NAIP Quarter Quad and Photocenter Shapefiles.Archived NAIP Quarter Quad and Photocenter Shapefiles.