<?xml version="1.0"?>
<metadata>
  <idinfo>
    <citation>
      <citeinfo>
        <origin>State of Ohio Office of Information Technology, Ohio Geographically Referenced Information Program</origin>
        <pubdate>20190925</pubdate>
        <title>BS853795.tif</title>
        <geoform>raster digital file</geoform>
      </citeinfo>
    </citation>
    <descript>
      <abstract>The City of Columbus, OH – 2019 Ortho and LiDAR project consists of the following: New area-wide, 1”=50 scale 8-bit, 4-band (R,G,B,NIR) stacked “Leaf - Off” orthoimagery with a 3-inch pixel resolution and new area-wide QL0 LiDAR.  New ground control will be collected and DEM data will be derived from the new lidar to provide the City the most current, up to date product. 

2019 City of Columbus Digital Orthoimagery Project – In the spring of 2019 City of Columbus obtained new orthoimagery covering the entire city service area. Products produced 4-band, 8-bit orthophotos with a 0.25-foot ground sample distance (GSD). The aerial imagery was collected during leaf-off conditions at a minimum resolution of 3-inch. Imagery was collected with Leica ADS100 digital cameras and rectified using LiDAR data. Adjacent flight lines overlap by an average of 80 percent. The orthos are delivered as a citywide dataset, consisting of 1,250' x 1,250' uncompressed 8-bit, 4-band color geotiff files. All ortho tiles are full image tiles. The file naming convention is as follows: bsxxxyyy (Ohio South Zone); Please note that xxx and yyy represent the easting and northing coordinates (respectively) in state plane feet. Each geotiff ortho file is approximately 100 megabytes in size.  Additional deliverables include color and color infrared MrSID images, FGDC compliant metadata per file, and tile index provided in ESRI shapefile format. Ownership of the data products resides with the City of Columbus and the state of Ohio. Orthoimagery and ancillary data products produced through this contract are public domain data.</abstract>
      <purpose>The City of Columbus, OH has a goal to develop and/or update their existing orthoimagery and lidar geospatial dataset for use by city agencies, other levels of government, academia, and the general public, and to provide these datasets for inclusion to OGRIP.  OGRIP is a State of Ohio resource for geographic information technology users.</purpose>
    </descript>
    <timeperd>
      <timeinfo>
        <sngdate>
          <caldate>20190327</caldate>
        </sngdate>
      </timeinfo>
      <current>ground condition</current>
    </timeperd>
    <status>
      <progress>Complete</progress>
      <update>As needed</update>
    </status>
    <spdom>
      <bounding>
        <westbc>-82.910683</westbc>
        <eastbc>-82.906190</eastbc>
        <northbc>40.185403</northbc>
        <southbc>40.181956</southbc>
      </bounding>
    </spdom>
    <keywords>
      <theme>
        <themekt>None</themekt>
        <themekey>Raster</themekey>
        <themekey>Orthophoto</themekey>
      </theme>
      <place>
        <placekt>none</placekt>
        <placekey>United States</placekey>
        <placekey>Ohio</placekey>
        <placekey>City of Columbus</placekey>
      </place>
    </keywords>
    <accconst>None</accconst>
    <useconst>None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations.</useconst>
    <ptcontac>
      <cntinfo>
        <cntorgp>
          <cntorg>OGRIP</cntorg>
        </cntorgp>
        <cntpos>GIS Manager</cntpos>
        <cntaddr>
          <addrtype>mailing and physical address</addrtype>
          <address>77 S. High St. - Rm 1990</address>
          <city>Columbus</city>
          <state>OH</state>
          <postal>43215</postal>
          <country>USA</country>
        </cntaddr>
        <cntvoice>(614) 466-4747</cntvoice>
        <cntfax>(614) 728-5297</cntfax>
      </cntinfo>
    </ptcontac>
    <native>Windows 10 Enterprise; Esri ArcGIS 10.4</native>
  </idinfo>
  <dataqual>
    <logic>This orthophoto imagery follows the boundary of City of Columbus.</logic>
    <complete>The dataset is complete</complete>
    <posacc>
      <horizpa>
        <horizpar>The 7.5cm (3-inch) orthoimagery will be produced by Woolpert to meet ASPRS Positional Accuracy Standards for Digital Geospatial Data (2014) for a 15cm RMSEx / RMSEy Horizontal Accuracy Class which equates to Positional Horizontal Accuracy = +/- 37cm (+/- 1.2ft) at a 95% confidence level.</horizpar>
      </horizpa>
    </posacc>
    <lineage>
      <procstep>
        <procdesc>The Leica ADS100 Airborne Digital Sensor is a push-broom geometry sensor, collecting 12-bit data with 12,000 pixel swath coverage with up to a 5-centimeter spatial resolution. The sensor is capable of collecting multiple spectral bands and angles simultaneously. Leica ADS100 collects seven bands of imagery simultaneously: three panchromatic CCD lines capture information in the forward, nadir and backward views from the aircraft, while four multispectral lines capture data in the red, green, blue, and near color infrared band. The imagery for this task order was acquired using the Leica ADS100 multispectral scanner. The ADS100 utilizes the Leica IPAS20 direct positioning and orientation system that is based on airborne GPS and inertial measurement unit (IMU) technology. The IPAS20 data were reduced using Leica Inertial Explorer software package. All of the source imagery was processed using the Leica XPRO software package. This package provides the capability to perform digital image processing, aerial triangulation, and image rectification.</procdesc>
        <procdate>20190409</procdate>
        <proccont>
          <cntinfo>
            <cntorgp>
              <cntorg>Woolpert, Inc.</cntorg>
            </cntorgp>
            <cntpos>Geospatial Services</cntpos>
            <cntaddr>
              <addrtype>mailing and physical address</addrtype>
              <address>4454 Idea Center Blvd.</address>
              <city>Dayton</city>
              <state>OH</state>
              <postal>45430</postal>
              <country>USA</country>
            </cntaddr>
            <cntvoice>(937) 461-5660</cntvoice>
            <cntfax>(937) 461-0743</cntfax>
            <hours>8:00 a.m. to 5:00 p.m. Eastern Time</hours>
          </cntinfo>
        </proccont>
      </procstep>
      <procstep>
        <procdesc>The individual rectified strips of ortho rectified imagery were then mosaicked together to form a seamless imagery database over the entire task order area using the OrthoVista software by Inpho GmbH. The final digital orthophoto imagery (DOI) were extracted using OrthoVista. Final orthophoto non-overlapping tiles were produced in GeoTIFF format (with World files) using a cell size of 3-inch and a tile size of 1,250’ x 1,250’.</procdesc>
        <procdate>20190925</procdate>
        <proccont>
          <cntinfo>
            <cntorgp>
              <cntorg>Woolpert, Inc.</cntorg>
            </cntorgp>
            <cntpos>Geospatial Services</cntpos>
            <cntaddr>
              <addrtype>mailing and physical address</addrtype>
              <address>4454 Idea Center Blvd.</address>
              <city>Dayton</city>
              <state>OH</state>
              <postal>45430</postal>
              <country>USA</country>
            </cntaddr>
            <cntvoice>(937) 461-5660</cntvoice>
            <hours>8:00 a.m. to 5:00 p.m. Eastern Time</hours>
          </cntinfo>
        </proccont>
      </procstep>
    </lineage>
  </dataqual>
  <spdoinfo>
    <direct>Raster</direct>
    <rastinfo>
      <rasttype>Pixel</rasttype>
      <rowcount>5000</rowcount>
      <colcount>5000</colcount>
    </rastinfo>
  </spdoinfo>
  <spref>
    <horizsys>
      <planar>
        <mapproj>
          <mapprojn>NAD 1983 HARN StatePlane Ohio South FIPS 3402 Feet</mapprojn>
          <lambertc>
            <stdparll>38.73333333333333</stdparll>
            <stdparll>40.03333333333333</stdparll>
            <longcm>-82.5</longcm>
            <latprjo>38.0</latprjo>
            <feast>1968500.0</feast>
            <fnorth>0.0</fnorth>
          </lambertc>
        </mapproj>
        <planci>
          <plance>row and column</plance>
          <coordrep>
            <absres>0.25</absres>
            <ordres>0.25</ordres>
          </coordrep>
          <plandu>survey feet</plandu>
        </planci>
      </planar>
      <geodetic>
        <horizdn>D North American 1983 HARN</horizdn>
        <ellips>GRS 1980</ellips>
        <semiaxis>6378137.0</semiaxis>
        <denflat>298.257222101</denflat>
      </geodetic>
    </horizsys>
  </spref>
  <distinfo>
    <distrib>
      <cntinfo>
        <cntorgp>
          <cntorg>OGRIP</cntorg>
        </cntorgp>
        <cntpos>GIS Manager</cntpos>
        <cntaddr>
          <addrtype>mailing and physical address</addrtype>
          <address>77 S. High St. - Rm 1990</address>
          <city>Columbus</city>
          <state>OH</state>
          <postal>43215</postal>
          <country>USA</country>
        </cntaddr>
        <cntvoice>(614) 466-4747</cntvoice>
        <cntfax>(614) 728-5297</cntfax>
      </cntinfo>
    </distrib>
    <resdesc>Downloadable Data</resdesc>
    <distliab>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 within the limitations of the data for which it was requested and prepared, in general, and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data. It is not appropriate to use the related graphics as data. Woolpert 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 a Woolpert server, and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully upon Woolpert’s computer system, 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.</distliab>
    <stdorder>
      <digform>
        <digtinfo>
          <formname>TIFF</formname>
          <transize>100.0</transize>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>http://ogrip.oit.ohio.gov/ServicesData/StatewideImagery/tabid/86/Default.aspx</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <fees>None</fees>
    </stdorder>
  </distinfo>
  <metainfo>
    <metd>20190925</metd>
    <metc>
      <cntinfo>
        <cntorgp>
          <cntorg>OGRIP</cntorg>
        </cntorgp>
        <cntpos>GIS Manager</cntpos>
        <cntaddr>
          <addrtype>mailing and physical address</addrtype>
          <address>77 S. High St. - Rm 1990</address>
          <city>Columbus</city>
          <state>OH</state>
          <postal>43215</postal>
          <country>USA</country>
        </cntaddr>
        <cntvoice>(614) 466-4747</cntvoice>
        <cntfax>(614) 728-5297</cntfax>
      </cntinfo>
    </metc>
    <metstdn>FGDC Content Standards for Digital Geospatial Metadata</metstdn>
    <metstdv>FGDC-STD-001-1998</metstdv>
    <mettc>local time</mettc>
  </metainfo>
</metadata>