USDA-FSA Aerial Photography Field Office 20110818 Salt Lake City, Utah USDA FSA Aerial Photography Field Office This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP acquires digital ortho imagery during the agricultural growing seasons in the continental U.S.. A primary goal of the NAIP program is to enable availability of ortho imagery within one year of acquisition. The NAIP provides two main products: 1 meter ground sample distance (GSD) ortho imagery rectified to a horizontal accuracy within +/- 5 meters of reference digital ortho quarter quads (DOQQ's) from the National Digital Ortho Program (NDOP) or from the National Agriculture Imagery Program (NAIP); 1 meter GSD ortho imagery rectified within +/- 6 meters to true ground. The tiling format of NAIP imagery is based on a 3.75' x 3.75' quarter quadrangle with a 300 meter buffer on all four sides. The NAIP imagery is formatted to the UTM coordinate system using the North American Datum of 1983 (NAD83). The NAIP imagery may contain as much as 10% cloud cover per tile. This file was generated by compressing NAIP imagery that cover the county extent. Two types of compression may be used for NAIP imagery: MrSID and JPEG 2000. Target value for the compression ratio is (15:1). The NAIP imagery is available for distribution within 60 days of the end of a flying season and is intended to provide current information of agricultural conditions in support of USDA farm programs. For USDA Farm Service Agency, the 1 meter GSD product provides an ortho image base for Common Land Unit boundaries and other data sets. The NAIP imagery is generally acquired in projects covering full states in cooperation with state government and other federal agencies who use the imagery for a variety of purposes including land use planning and natural resource assessment. The NAIP is also used for disaster response often providing the most current pre-event imagery. 20110727 Photography Source Image Dates. Complete Irregular -76.755052163686 -76.3703289244914 38.816142017442 38.3089620992905 None farming Digital Ortho rectified Image Mosaic Quarter Quadrangle Centered Ortho Rectification Compression MrSID JPEG 2000 NAIP Compliance Aerial Compliance Geographic Names Information System CALVERT CO., MD FSA FIPS 24009 Calvert Maryland None None, The USDA-FSA Aerial Photography Field Office asks to be credited in derived products. If defects are found in the NAIP imagery during the warranty period such as horizontal offsets, replacement imagery may be provided. Imagery containing defects that require the acquisition of new imagery, such as excessive cloud cover, specular reflectance, etc., will not be replaced within a NAIP project year. USDA-FSA Aerial Photography Field Office mailing and physical address

2222 West 2300 South

Salt Lake City Utah 84119-2020 USA 801-844-2922 801-956-3653 None None None Intergraph Image Station Photogrammetric Manager 5.2; Image Station OrthoPro 5.2; ArcGIS 9.1; GeoExpress 7.0.3.2185.Bob_2052_br NAIP 3.75 minute tile file names are based on the USGS quadrangle naming convention. None FSA Digital Orthophoto Specifications. N/A 2d only USDA-FSA Aerial Photography Field Office 20110818 12000 CD/DVD 20110727 Majority Aerial Photography Date MrSID Mosaicked County Image Digital frames captured with a ZI Intergraph DMC with a footprint of 7680 x 13824 pixels were used to create Digital Orthophoto Quarter Quadrangles. DMC Serial Number 033 installed in a Rockwell 690B Turbo Commander N167R was used to fly this area. Calibration reports are on file with the USDA. 12 micron frames were captured at eight bits with 2.5 - 2.7 foot pixel using Windows Server 2003; ZI Mission Planning 6.2; Intergraph GeoMedia 6.0; DMC Image Analyst 6.2; DMC Post Processing 6.1; ZI Image Viewer 6.1; Microsoft Access; Microsoft Excel; Delorme XMap 4.5 and Adobe PhotoShop. Flights ASL was 28,900 feet. The state was flown in blocks for efficiency of capture and in order to accommodate the different elevations throughout the state. Flight planning software includes Delorme 4.5; Delorme Photo Flight 2.1.6; ZI Inflight V06.01.20.16; ZI ImageView V06.01.20.16 ; ArcView 3.2; Microsoft Access; and POSAV 2.1. Ground control points were collected by Photo Science crews. External Orientation files created from ABGPS data in Applanix POSPac MMS Version 5.2 and are rectified using ImageStation Project Manager 5.2; Intergraph GeoMedia 6.0; and Intergraph OrthoPro 5.2. Extensive Quality Control checks are performed on the data throughout the production process. Processed RAW Frames are checked for spectral compliance. Rectified frames are checked for spatial accuracy and also spectral compliance. DOQQs are thoroughly checked for spectral and spatial accuracy in Iras/C and Adobe PhotoShop. CCMs are checked for overall spectral compliance and spatial accuracy in ArcGIS. Seamline shapefiles are checked for gaps, slivers, overlaps and multipart features by building a topology in ArcGIS. Ground control points are read off of rectified frames as a double-check and final DOQQs are used to calculate RMSE values in MicroStation and Excel. Frames are rectified with 10 meter NEDs in Intergraph OrthoPro. This surface is checked for errors at the mosaicked DOQQ level. If any areas presented problems, they are noted in a Digital Elevation Model Errors ASCII text file. 20110818 CALVERT CO., MARYLAND ortho_1-1_1n_s_md009_2011_1 Raster Pixel Universal Transverse Mercator 18 0.9996 -75 0.0 500000 0.0 row and column 1.0 1.0 meters North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 8-bit pixels, 3 band color (Red, Green, Blue) represent brightness values of 0-255. None Supervisor Customer Service Section USDA-FSA Aerial Photography Field Office mailing and physical address

2222 West 2300 South

Salt Lake City Utah 84119-2020 USA 801-844-2922 801-956-3653 Calvert, Maryland FIPS 24009 In no event shall the creators, custodians, or distributors of this information be liable for any damages arising out of its use (or the inability to use it). Compressed County Mosaic Compressed Raster Data None CD-ROM ISO 9660 DVD-R ISO 9660 USB/Firewire/SATA External Hard Drive NTFS Contact the USDA-FSA Aerial Photography Field Office for more information. 20110818 USDA-FSA Aerial Photography Field Office mailing and physical address

2222 West 2300 South

Salt Lake City Utah 84119-2020 USA 801-844-2922 Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP acquires digital ortho imagery during the agricultural growing seasons in the continental U.S.. A primary goal of the NAIP program is to enable availability of ortho imagery within one year of acquisition. The NAIP provides two main products: 1 meter ground sample distance (GSD) ortho imagery rectified to a horizontal accuracy within +/- 5 meters of reference digital ortho quarter quads (DOQQ's) from the National Digital Ortho Program (NDOP) or from the National Agriculture Imagery Program (NAIP); 1 meter GSD ortho imagery rectified within +/- 6 meters to true ground. The tiling format of NAIP imagery is based on a 3.75' x 3.75' quarter quadrangle with a 300 meter buffer on all four sides. The NAIP imagery is formatted to the UTM coordinate system using the North American Datum of 1983 (NAD83). The NAIP imagery may contain as much as 10% cloud cover per tile. This file was generated by compressing NAIP imagery that cover the county extent. Two types of compression may be used for NAIP imagery: MrSID and JPEG 2000. Target value for the compression ratio is (15:1). CALVERT CO. MD FSA FIPS 24009 Calvert Maryland farming Digital Ortho rectified Image Mosaic Quarter Quadrangle Centered Ortho Rectification Compression MrSID JPEG 2000 NAIP Compliance Aerial Compliance The NAIP imagery is available for distribution within 60 days of the end of a flying season and is intended to provide current information of agricultural... Calvert_2011_NAIP