USDA-FSA-APFO Aerial Photography Field Office 20070118 vector digital data Salt Lake City, Utah USDA_FSA_APFO Aerial Photography Field Office http://www1.usgs.gov/vip/gosp/gosportho.zip doi:10.5066/F7N29TXN This imagery dataset was used to map the vegetation at Golden Spike National Historic Site. This data set contains imagery from the National Agricultural Imagery Program (NAIP). 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 a year of acquisition. NAIP provides two main products: 1 meter ground sample distance (GSD) ortho imagery rectified to a horizontal accuracy of within +/- 5 meters of reference digital ortho quarter quads (DOQQS) from the National Digital Ortho Program (NDOP); and, 2 meter GSD ortho imagery rectified to within +/- 10 meters of reference DOQQs. The tiling format of NAIP imagery is based on a 3.75' x 3.75' quarter quadrangle with a 360 meter buffer on all four sides. NAIP quarter quads are rectified to the UTM coordinate system NAD83. NAIP imagery can obtain as much as 10% cloud cover per tile. All Golden Spike tiles were mosaicked into a MrSID format. The 1 meter GSD NAIP is intended as a source for current digital ortho imagery in USDA Field Service Center GIS and for other uses that require ortho imagery acquired during the agricultural growing season. The intended use of all data in the park's GIS library is to support diverse park activities including planning, management, maintenance, research, and interpretation. 20060818 ground condition Complete None planned Golden Spike National Historic Site -112.683062 -112.390750 41.723345 41.539415 None Digital Georectified Image Georectified Image Georectified Georectification Georeferenced Image Georeferenced Quarter Quadrangle Centered NAIP Aerial Compliance Compliance USDA-FSA-APFO Aerial Photography Field Office United States Department of Agriculture (USDA) Aerial photography National Park Service Theme Category Thesaurus Digital Orthophoto ISO 19115 Topic Category imageryBaseMapsEarthCover None Golden Spike National Historic Site GOSP Box Elder County Utah UT Colorado Plateau National Park Service NPS USA National Park System Unit Name Thesaurus Golden Spike National Historic Site National Park System Unit Code Thesaurus GOSP There are no limitations for access. None, The Aerial Photography Field Office asks to be credited in derived products. Aerial Photography Field Office (APFO) mailing and physical address

2222 West 2300 South

Salt Lake City Utah 84119-2020 USA 801-975-3503 801-975-3532 sales@apfo.usda.gov Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.3.1.1850 Coles, J., A. Wight, J. Von Loh, K. Schulz, and A. Evenden 20110915 report http://science.nature.nps.gov/im/units/ncpn/ NAIP 3.75 minute tile file names are based on the USGS quadrangle naming convention. None The positional accuracy for the digital data is tested by visual comparison to a data source with a higher order of accuracy. USDA-FSA-APFO Aerial Photography Field Office 20070118 remote-sensing image Digital Linear Tape (DLT) 20060818 Aerial Photography Date for aerial photo source. Georectifed Image Digital Georectifed Image. Imagery was flown with Leica ADS40 digital sensors to capture 0.9m raw data. Raw data is then downloaded using Leica GPro software into 12 bit TIFF format. The raw TIFF imagery is then georeferenced and reprojected using GPS/INS 200Hz exterior orientation information (x/y/z/o/p/k) to allow stereo viewable imagery. This stereo viewable imagery is processed with the GPro/LPS automatic point matching algorithm to determine common match points every 2000 pixels across the imagery strip and 333 pixels along strip. This pattern includes dual rows of line ties to the adjacent line of imagery. The resulting point data is imported in Leica ORIMA and used to perform a full bundle adjustment of the imagery point data. Any blunders are removed, and weak areas are manually supplemented to ensure good coverage of points. Once the point data is cleaned and point coverage is acceptable vertical control points from the prior generation MDOQQ's are introduced in the corners and center of the block being adjusted. This control is used to perform any datum shift (x/y/z and rotation) to ensure the new adjusted imagery fits the existing MDOQQ reference imagery. The output from this bundle adjustment process is revised exterior orientation data for the sensor with any GPS/INS, datum, and sensor calibration errors modeled and compensated for. Using this revised EO data orthorectified image strips are created using the USGS DEM. The 10m DEM is used where available and 30m DEM is used elsewhere. The orthorectified strips are overlaid over the existing MDOQQ compressed files to ensure accuracy is met by a visual inspection and manually measuring features. Once the accuracy of the orthorectified image strips are validated the strips are processed with a NWG proprietary dodging package that compensates for the bi-directional reflectance function that is caused by the sun's position relative to the image area. This compensated imagery is then imported into Inpho's OrthoVista 4.0 package which is used for the final radiometric balance, and DOQQ sheet creation. These final DOQQ sheets contain a 300m minimum buffer. These final DOQQ tiles are edge inspected to the existing MDOQQ sheets for accuracy validation. A visual inspection is performed of the DOQQ to ensure the radiometric quality and content of the DOQQ looks good. 20070118 Box Elder County, UT Raster Pixel 80000 96000 Universal Transverse Mercator 12 0.999600 -111.000000 0.000000 500000.000000 0.000000 coordinate pair 0.25 0.25 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 GOSP_2006_1Ft Table USDA-FSA-APFO Aerial Photography Field Office OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. Raster Unknown field created by originator but not documented. ESRI Unknown Name Unknown field created by originator but not documented. ESRI Unknown Shape_Length Length of feature in internal units. ESRI Positive real numbers that are automatically generated. Shape_Area Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. 24-bit pixels, 3 band color(RGB) values 0 - 255 None USGS/CSS/Core Science Analytics and Synthesis USGS-NPS Vegetation Characterization Program Coordinator mailing and physical address

Denver Federal Center, Building 810, MS 302

Denver Colorado 80225 (303) 202-4220 303-202-4219 gs-b-npsveg@usgs.gov Downloadable Data The U.S. Geological Survey and the National Park Service shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics (if available) are not legal documents and are not intended to be used as such. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. Any related graphics (if available) are intended to aid the data user in acquiring relevant data; it is not approriate to use the related graphics as data. The U.S. Geological Survey and the National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from an U.S. Geological Survey and National Park Service servers and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. Mention of trade names or commercial products in this metadata report does not constitute endorsement or recommendation for use by the U. S. Department of the Interior, U. S. Geological Survey and National Park Service. HTML http://www.usgs.gov/core_science_systems/csas/vip/parks/gosp.html Internet Access None GeoTIFF - Georeferenced Tagged Image File Format Natural Color http://gis.utah.gov/naip2006 CD-ROM ISO 9660 Mode 1 Level 2 Extensions Contact the Aerial Photography Field Office for more information 20070118 20111209 USGS/CSS/Core Science Analytics and Synthesis USGS-NPS Vegetation Characterization Program Coordinator mailing and physical address

Denver Federal Center, Building 810, MS 302

Denver Colorado 80225 (303) 202-4220 303-202-4219 gs-b-npsveg@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999 http://www.usgs.gov/core_science_systems/csas/metadata/index.html