NYS Office of Information Technology Services, GIS Program Office 20201005 Steuben County, NY 12in Ortho raster digital data NYS Digital Ortho-imagery Program (NYSDOP) 2020 imagery in Steuben County, NY Albany, New York NYS ITS GIS Program Office These files contain 2020 digital Orthoimagery of Steuben County, New York. Image pixel size is 1.0' GSD. Image type is 4-band, RGB & NIR. Image horizontal accuracy is within 4 feet at the 95% confidence level (NSSDA). Each file contains an image covering 2000 feet by 3000 feet on the ground. This digital Orthoimagery can serve a variety of purposes, from general planning to field reference for spatial analysis to a tool for revision of vector maps. It can also serve as a reference layer for GIS. 20200420 20200526 ground condition Complete Irregular -77.7687 -76.9520 42.5903 41.9922 None Ortho Photo, ortho Digital Orthoimagery None Steuben County New York None None Tim Ruhren NYS ITS GIS Program Office Office of Information Technology Services mailing and physical
W. Averell Harriman State Office Campus Bld 5 - Floor 1
1220 Washington Avenue
Albany New York 12226 USA 518-242-5029 nysgis@its.ny.gov NYS Office of Information Technology Services - GIS Program Office Microsoft Windows 10 Service Pack 1; ESRI ArcCatalog 10.6.1 Not Applicable The New York State Office of Information Technology Services makes no claims to the accuracy of the information in this file. THE GIS DATA IS PROVIDED AS IS AND WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED, AS TO THEIR PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR ANY PARTICULAR PURPOSE. NYS ITS does not represent or warrant that the GIS data is error-free, complete, current, or accurate. The file naming convention was supplied by New York State. When the ortho tiles were created the file names were restricted to a numeric value representing the lower left corner of the ortho tile. These tiles were then all renamed using a batch script so that they reflected the N.Y. state standard (i.e. "l_10440238_06_07400_4bd_2020.tif"). Consistency of file naming was ensured by using a batch process. The file naming convention consists of the first letter for Central, East, West or Long Island for New York State Plane Coordinate Systems (NYSPCS). The following four numeric characters represent the first four characters of the "X" coordinate value for the tile's lower left corner coordinate in NYSPCS and the next four characters represent the first four characters of the "Y" coordinate value for the tile's lower left corner coordinate in NYSPCS. The next two numeric characters represent the tile's Ground Sampling Distance (GSD) value in ft. The following five numeric characters represent the Above Mean Terrain (AMT) nominal height at which the Ultracam sensor recorded or collected the original imagery for the corresponding area. The next three characters are "4bd" for 4-band orthophotos. Lastly, the last four numeric digits represent the year in which the particular ortho was created. The project consisted of 6828 final tiles. +/-4 ft. at the 95% confidence level (NSSDA) for 12 inch resolution. NA The Digital Natural Color aerial imagery was acquired in April-May 2020 using a Microsoft Ultracam Eagle sensor flown at a nominal height of 17670' AGL (Above Ground Level). GNSS/IMU data was also collected and processed using POSPac (version 8.4) Mobile Mapping Suite . The Ground Control used to support the 4-band ortho-imagery production was collected by identifying and surveying photo identifiable points (PID), using existing PIDs. The Aerial Triangulation (AT) was performed using Inpho Match-AT software. Digital Elevation Models (DEM) used for ortho imagery production were supplied by the state and updated as needed. The images were then orthorectified using Inpho OrthoMaster software. Color balancing, seamless mosaicking was performed by automatic seam line creation steps, and final extractions were also accomplished using Inpho OrthoVista software. A final radiometric correction was performed using Adobe PhotoShop software. The imagery product deliverables are GeoTIFF images with embedded header information describing the required projection, pixel size, tile size and other related data and corresponding world files (.tfw). Derivative compressed imagery is also available in JP2000 format. 20200903 Aerial Imagery The Sanborn Map Company, Inc. Shawn Benham Vice President of Programs mailing
Suite 100
Colorado Springs Colorado 80920 USA 719-502-1296 sbenham@sanborn.com Vector G-polygon 6828 Transverse_Mercator 0.0 0.0 -76.58333333333333 0.0 820208.3333333334 0.0 coordinate pair 0.6096 0.6096 survey feet NAD83_NATIONAL_SPATIAL_REFERENCE_SYSTEM_2011 GRS_1980 6378137.0 298.257222101 The Sanborn Map Company, Inc. Shawn Benham Vice President of Programs mailing
Suite 100
Colorado Springs Colorado 80920 USA 719-502-1296 sbenham@sanborn.com Downloadable Data None 20201005 Tim Ruhren NYS ITS GIS Program Office Office of Information Technology Services mailing and physical address
W. Averell Harriman State Office Campus Bld 5 - Floor 1
1220 Washington Avenue
Albany New York 12226 518-242-5029 nysgis@its.ny.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile