<?xml version="1.0"?>
<!DOCTYPE metadata SYSTEM "http://www.fgdc.gov/metadata/fgdc-std-001-1998.dtd"[]>
<metadata>
  <idinfo>
    <citation>
      <citeinfo>
        <origin>State of Ohio Office of Information Technology, Ohio Geographically Referenced Information Program</origin>
        <pubdate>20110509</pubdate>
        <pubtime>Unknown</pubtime>
        <title>2011 Huron County, OH Digital Orthoimagery</title>
        <geoform>raster digital file</geoform>
        <pubinfo>
          <pubplace>Columbus, OH</pubplace>
          <publish>OGRIP</publish>
        </pubinfo>
        <onlink>AN000532.tif</onlink>
      </citeinfo>
    </citation>
    <descript>
      <abstract>2011 Huron County Digital Orthoimagery Project – In the Spring of 2011 Huron County obtained new orthoimagery covering the entire county (+/- 496.4 sq. miles). Products produced were 4-band, 8-bit orthophotos with a 0.5-foot ground sample distance (GSD). The aerial imagery was collected during leaf-off conditions at a minimum resolution of 6-inch resolution.  The orthos are delivered as a countywide dataset, consisting of 2,500' x 2,500' uncompressed 8-bit, 4-band color geotiff files.  Horizontal accuracy is based upon NMAS Standards for 1"=100' scale base mapping. Along the perimeter of the project area, ortho-imagery is buffered at 100-feet, with any ortho tile within or touching this 100-foot buffer zone to be a full image tile.  Adjacent flight lines overlap by an average of 30 percent. Imagery was collected with Leica ADS digital cameras and rectified using LiDAR data. The file naming convention is as follows: anxxxyyy (Ohio North 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. Ownership of the data products resides with Huron County and the state of Ohio. Orthoimagery and ancillary data products produced through this contract are public domain data.

LiDAR was acquired Statewide to provide a solid and very accurate base to use during the image rectification process.  This same LiDAR can be supplemented with 3D breaklines to generate 2-foot and/or 4/5-foot contours.  The average post spacing between LiDAR points is 7-feet.  The flying altitude was ~7,300-feet AMT, with the targeted flying speed at ~170 knots.</abstract>
      <purpose>The state of Ohio has a goal to develop and maintain a seamless statewide base map, referred to as OSIP (Ohio Statewide Imagery Program). OSIP is an initiative partnered through several State Agencies (i.e. ODOT, ODNR, OEPA) through OGRIP. USGS is also a partner.  Data from this project forms the foundation of the statewide base map, and was developed primarily to support multi-use applications, including homeland security, emergency management, economic development, and the business of government.</purpose>
    </descript>
    <timeperd>
      <timeinfo>
        <sngdate>
          <caldate>20110413</caldate>
        </sngdate>
      </timeinfo>
      <current>ground condition</current>
    </timeperd>
    <status>
      <progress>Complete</progress>
      <update>As needed</update>
    </status>
    <spdom>
      <bounding>
        <westbc>-82.385655</westbc>
        <eastbc>-82.376567</eastbc>
        <northbc>41.135085</northbc>
        <southbc>41.128213</southbc>
      </bounding>
    </spdom>
    <keywords>
      <theme>
        <themekt>None</themekt>
        <themekey>Raster</themekey>
        <themekey>Orthophoto</themekey>
        <themekey>imageryBaseMapsEarthCover</themekey>
      </theme>
      <place>
        <placekt>none</placekt>
        <placekey>United States</placekey>
        <placekey>Ohio</placekey>
        <placekey>Huron County, OH</placekey>
      </place>
    </keywords>
    <accconst>This data may be used by the requested party for stated purposes and should not be re-distributed.</accconst>
    <useconst>This data is for planning purposes only and should not be used for legal or cadastral purposes.</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>
    <secinfo>
      <secsys>Unclassified</secsys>
      <secclass>Unclassified</secclass>
      <sechandl>Unclassified</sechandl>
    </secinfo>
    <native>Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350</native>
  </idinfo>
  <dataqual>
    <logic>This orthophoto imagery follows the boundary of Huron County (+/- 496.4 square miles).</logic>
    <complete>The dataset is complete</complete>
    <posacc>
      <horizpa>
        <horizpar>The orthoimagery meets the National Map Accuracy Standards for 1”=100’ scale.</horizpar>
        <qhorizpa>
          <horizpav>3.33 feet</horizpav>
          <horizpae>All control points and test points that are visible on the aerial photography are visited on screen and the X, Y coordinates are displayed. This information is cross-referenced with the X, Y information provided by the ground survey.</horizpae>
        </qhorizpa>
      </horizpa>
    </posacc>
    <lineage>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>Huron County, OH GIS</origin>
            <pubdate>2011</pubdate>
            <pubtime>Unknown</pubtime>
            <title>2011 Digital Orthophoto Huron County</title>
            <geoform>raster digital data</geoform>
          </citeinfo>
        </srccite>
        <srcscale>4800</srcscale>
        <typesrc>disc</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>20110413</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>ground condition</srccurr>
        </srctime>
        <srccitea>Orthophoto</srccitea>
        <srccontr>Digital aerial imagery was acquired to produce 4-band, 8-bit ortho-imagery. This imagery was orthorectified to the terrain data and the ground control survey.</srccontr>
      </srcinfo>
      <procstep>
        <procdesc>The Leica ADS Airborne Digital Sensor acquires all digital, 12-bit data with the swath width and coverage area of a traditional film camera with up to a 5-centimeter spatial resolution. The sensor is capable of simultaneous acquisition of seven bands of imagery: 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 the Huron Co. 2011 Ortho task order was acquired using the Leica ADS multispectral scanner. The fundamental resolution of the imagery was 0.5 foot. The ADS utilizes the Applanix POSAV direct positioning and orientation system that is based on airborne GPS and inertial measurement unit (IMU) technology. POSAV data were reduced using the Applanix POSPAC software package (V5.3). All of the source imagery was processed using the Leica XPRO (V5.0.1) software package. This package provides the capability to perform digital image processing, aerial triangulation, and image rectification. The strips of imagery were ortho rectified to newly collected LiDAR digtial elevation model (DEM) data. 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 (V4.5) by Inpho GmbH. The final digital orthophoto imagery (DOI) 2500 x 2500 feet tiles based on the Ohio North State Plane Zone coordinates, were extracted using OrthoVista.</procdesc>
        <procdate>20110496.4</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>
    </lineage>
    <cloud>0</cloud>
  </dataqual>
  <spdoinfo>
    <direct>Raster</direct>
    <rastinfo>
      <rasttype>Pixel</rasttype>
      <rowcount>2500</rowcount>
      <colcount>2500</colcount>
      <vrtcount>1</vrtcount>
    </rastinfo>
  </spdoinfo>
  <spref>
    <horizsys>
      <planar>
        <gridsys>
          <gridsysn>State Plane Coordinate System 1983</gridsysn>
          <spcs>
            <spcszone>3402</spcszone>
            <lambertc>
              <stdparll>38.73333333333333</stdparll>
              <stdparll>40.03333333333333</stdparll>
              <longcm>-82.5</longcm>
              <latprjo>38.0</latprjo>
              <feast>1968500.0</feast>
              <fnorth>0.000000</fnorth>
            </lambertc>
          </spcs>
        </gridsys>
        <planci>
          <plance>row and column</plance>
          <coordrep>
            <absres>0.5</absres>
            <ordres>0.5</ordres>
          </coordrep>
          <plandu>survey feet</plandu>
        </planci>
      </planar>
      <geodetic>
        <horizdn>North American Datum of 1983</horizdn>
        <ellips>Geodetic Reference System 80</ellips>
        <semiaxis>6378137.000000</semiaxis>
        <denflat>298.257222</denflat>
      </geodetic>
    </horizsys>
    <vertdef>
      <altsys>
        <altdatum>North American Vertical Datum of 1988</altdatum>
        <altres>1</altres>
        <altunits>feet</altunits>
        <altenc>Explicit elevation coordinate included with horizontal coordinates</altenc>
      </altsys>
    </vertdef>
  </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>Due to the easily alterable nature of electronic media, files, documents, and other deliverables, Woolpert, Inc. makes no warranties, either expressed or implied, with respect to the accuracy, completeness, merchantability, or fitness for any particular purpose, including, but not limited to, use of any/all data as described within this metadata file, by the Client or any other consultant or contractor. Any reuse will be at the Client’s sole risk unless Woolpert, Inc., for compensation to be agreed upon, reviews and adapts such deliverables.</distliab>
    <stdorder>
      <digform>
        <digtinfo>
          <formname>TIFF</formname>
          <transize>100.0</transize>
        </digtinfo>
        <digtopt>
          <offoptn>
            <offmedia>CD-ROM</offmedia>
            <recfmt>Digital</recfmt>
          </offoptn>
        </digtopt>
      </digform>
      <fees>None.</fees>
    </stdorder>
    <availabl>
      <timeinfo>
        <sngdate>
          <caldate>unknown</caldate>
          <time>unknown</time>
        </sngdate>
      </timeinfo>
    </availabl>
  </distinfo>
  <metainfo>
    <metd>20110509</metd>
    <metc>
      <cntinfo>
        <cntorgp>
          <cntorg>OGRIP</cntorg>
          <cntper>Jeff Smith</cntper>
        </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>
    <metextns>
      <onlink>http://www.esri.com/metadata/esriprof80.html</onlink>
      <metprof>ESRI Metadata Profile</metprof>
    </metextns>
  </metainfo>
</metadata>