- <metadata>
- <idinfo>
- <citation>
- <citeinfo>
  <origin>USDA-NRCS</origin>
  <pubdate>unknown</pubdate>
  <title>buffalo2m</title>
  <geoform>raster digital data</geoform>
- <serinfo>
  <sername>DEM_IMG</sername>
  <issue>DEM_IMG</issue>
  </serinfo>
- <pubinfo>
  <pubplace>Lincoln, NE</pubplace>
  <publish>USDA-NRCS</publish>
  </pubinfo>
  </citeinfo>
  </citation>
- <descript>
  <abstract>One-meter cell size Erdas Imagine (.img) files created from the ground classified (class = 2) lidar points which results in the Digital Elevation Model (DEM). These are delivered in both 5000m by 5000m tiles and also by a countywide DEM raster. Nebraska Department of Natural Resources produced 2 meter resolution ESRI rasters by resampling 1 meter ESRI rasters (provided by NRCS).</abstract>
  <purpose>The Lidar data combined with the 3d breaklines can be used to produce a highly accurate representation of the earth's surface (x, y and z).</purpose>
  <supplinf>Project Projection, Datums and Units Projection - UTM Zone 14 North Horizontal datum - North American Datum of 1983 (NAD83) using the latest adjustment revision (NSRS 2007) Vertical datum - North American Vertical Datum of 1988 (NAVD88) using the latest geoid (Geoid03) for converting ellipsoidal heights to orthometric heights Units - meters (to 1cm resolution) See the LIDAR report for detailed information.</supplinf>
  </descript>
- <timeperd>
- <timeinfo>
- <rngdates>
  <begdate>20120125</begdate>
  <begtime>unknown</begtime>
  <enddate>20120318</enddate>
  <endtime>unknown</endtime>
  </rngdates>
  </timeinfo>
  <current>ground condition</current>
  </timeperd>
- <status>
  <progress>Complete</progress>
  <update>Unknown</update>
  </status>
- <spdom>
- <bounding>
  <westbc>-99.428890</westbc>
  <eastbc>-98.719913</eastbc>
  <northbc>41.047356</northbc>
  <southbc>40.651331</southbc>
  </bounding>
  </spdom>
- <keywords>
- <theme>
  <themekt>None</themekt>
  <themekey>DEM</themekey>
  <themekey>LIDAR</themekey>
  <themekey>LAS</themekey>
  </theme>
- <place>
  <placekt>None</placekt>
  <placekey>Nebraska</placekey>
  </place>
- <temporal>
  <tempkt>None</tempkt>
  <tempkey>2012</tempkey>
  </temporal>
  </keywords>
  <accconst>Unknown</accconst>
  <useconst>Unknown</useconst>
- <ptcontac>
- <cntinfo>
- <cntorgp>
  <cntorg>USDA-NRCS</cntorg>
  <cntper>Shandy Bittle</cntper>
  </cntorgp>
  <cntpos>Project Manager</cntpos>
- <cntaddr>
  <addrtype>mailing and physical</addrtype>
  <address>Suite 152</address>
  <address>100 Centennial Mall N.</address>
  <city>Lincoln</city>
  <state>Ne</state>
  <postal>68508</postal>
  <country>US</country>
  </cntaddr>
  <cntvoice>402-437-4020</cntvoice>
  <cntemail>Shandy.Bittle@ne.usda.gov</cntemail>
  <hours>0800-1500</hours>
  </cntinfo>
  </ptcontac>
  <native>Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.5.4400</native>
  </idinfo>
- <dataqual>
- <attracc>
  <attraccr>Verification of attribute accuracy of LIDAR data involves the use of filtering techniques. Auto-filtering uses algorithms to reclassify data in the point cloud. Hand-filtering involves the use of a technician working in a graphic environment to reclassify the erroneous points that may remain in the LIDAR point cloud after auto filter.</attraccr>
  </attracc>
  <logic>Calibrations of the LIDAR flightline data are performed; this process is known as boresighting. The flightlines are compared to evaluate both their relative and absolute accuracies.</logic>
  <complete>This dataset contains unclassified returns of the LIDAR sensor. The sensor data was verified in MARS software to ensure complete coverage.</complete>
- <posacc>
- <horizpa>
  <horizpar>Horizontal accuracy will meet or exceed 0.6m RMSE (Accuracyr = 1.04m at the 95% confidence level).</horizpar>
- <qhorizpa>
  <horizpav>.6 meters RMSE</horizpav>
  <horizpae>Horizontal accuracy will meet or exceed 0.6m RMSE (Accuracyr = 1.04m at the 95% confidence level).</horizpae>
  </qhorizpa>
  </horizpa>
- <vertacc>
  <vertaccr>Vertical elevation will meet or exceed 0.185m RMSE (Accuracyz = 0.36m at the 95% confidence level)</vertaccr>
- <qvertpa>
  <vertaccv>.185 meters RMSE</vertaccv>
  <vertacce>Vertical elevation will meet or exceed 0.185m RMSE (Accuracyz = 0.36m at the 95% confidence level)</vertacce>
  </qvertpa>
  </vertacc>
  </posacc>
- <lineage>
- <srcinfo>
- <srccite>
- <citeinfo>
  <origin>Merrick & Co</origin>
  <pubdate>unknown</pubdate>
  <title>LIDAR</title>
  <geoform>LAS data</geoform>
- <serinfo>
  <sername>LIDAR</sername>
  <issue>LIDAR</issue>
  </serinfo>
- <pubinfo>
  <pubplace>Aurora, Co</pubplace>
  <publish>Merrick & Co</publish>
  </pubinfo>
  </citeinfo>
  </srccite>
  <typesrc>hardDisk</typesrc>
- <srctime>
- <timeinfo>
- <rngdates>
  <begdate>20120125</begdate>
  <begtime>unknown</begtime>
  <enddate>20120318</enddate>
  <endtime>unknown</endtime>
  </rngdates>
  </timeinfo>
  <srccurr>ground condition</srccurr>
  </srctime>
  <srccitea>LIDAR</srccitea>
  <srccontr>LIDAR points form the basis of the DTM surface.</srccontr>
  </srcinfo>
- <srcinfo>
- <srccite>
- <citeinfo>
  <origin>Merrick & Co</origin>
  <pubdate>unknown</pubdate>
  <title>Ground Control</title>
  <geoform>spreadsheet</geoform>
- <serinfo>
  <sername>Ground Control</sername>
  <issue>Ground Control</issue>
  </serinfo>
- <pubinfo>
  <pubplace>Aurora, Co</pubplace>
  <publish>Merrick & Co.</publish>
  </pubinfo>
  </citeinfo>
  </srccite>
  <typesrc>hardDisk</typesrc>
- <srctime>
- <timeinfo>
- <sngdate>
  <caldate>20120101</caldate>
  <time>unknown</time>
  </sngdate>
  </timeinfo>
  <srccurr>ground condition</srccurr>
  </srctime>
  <srccitea>Ground_Control</srccitea>
  <srccontr>GPS control network for LIDAR acquisition and processing.</srccontr>
  </srcinfo>
- <procstep>
  <procdesc>Using MARS software ESRI float grid files (.flt/.hdr) files are created with a one meter cell size. The .flt files are imported to Erdas Imagine (.img) files. The tiles are delivered in 5000m by 5000m tiles.</procdesc>
  <srcused>Ground_Control</srcused>
  <srcused>LIDAR</srcused>
  <procdate>20090414</procdate>
  <proctime>142854</proctime>
- <proccont>
- <cntinfo>
- <cntorgp>
  <cntorg>Merrick & Co</cntorg>
  <cntper>Doug Jacoby</cntper>
  </cntorgp>
  <cntpos>Project Manager</cntpos>
- <cntaddr>
  <addrtype>mailing and physical</addrtype>
  <address>2450 S. Peoria St</address>
  <city>Aurora</city>
  <state>Co</state>
  <postal>80014</postal>
  <country>US</country>
  </cntaddr>
  <cntvoice>303-353-3903</cntvoice>
  <cntemail>doug.jacoby@merrick.com</cntemail>
  <hours>0800-1500 MST</hours>
  </cntinfo>
  </proccont>
  </procstep>
  </lineage>
  </dataqual>
- <spdoinfo>
  <direct>Raster</direct>
- <rastinfo>
  <rasttype>Grid Cell</rasttype>
  <rowcount>21937</rowcount>
  <colcount>29792</colcount>
  </rastinfo>
  </spdoinfo>
- <spref>
- <horizsys>
- <planar>
- <mapproj>
  <mapprojn>Transverse Mercator</mapprojn>
- <transmer>
  <sfctrmer>0.9996</sfctrmer>
  <longcm>-99.0</longcm>
  <latprjo>0.0</latprjo>
  <feast>500000.0</feast>
  <fnorth>0.0</fnorth>
  </transmer>
  </mapproj>
- <planci>
  <plance>coordinate pair</plance>
- <coordrep>
  <absres>0.000000002220024164500956</absres>
  <ordres>0.000000002220024164500956</ordres>
  </coordrep>
  <plandu />
  </planci>
  </planar>
- <geodetic>
  <horizdn>D North American 1983</horizdn>
  <ellips>GRS 1980</ellips>
  <semiaxis>6378137.0</semiaxis>
  <denflat>298.257222101</denflat>
  </geodetic>
  </horizsys>
  </spref>
- <eainfo>
- <detailed>
- <enttyp>
  <enttypl>LAS</enttypl>
  <enttypd>LAS</enttypd>
  <enttypds>Merrick & Co</enttypds>
  </enttyp>
  </detailed>
- <overview>
  <eaover>4 classifications for LAS ver 1.2 1 = Unclassified 2 = Classified 7 = Low Points/Noise 8 = Model Keypoints</eaover>
  <eadetcit>4 classifications for LAS ver 1.2 1 = Unclassified 2 = Classified 7 = Low Points/Noise 8 = Model Keypoints</eadetcit>
  </overview>
  </eainfo>
- <metainfo>
  <metd>20130313</metd>
- <metc>
- <cntinfo>
- <cntorgp>
  <cntorg>USDA-NRCS</cntorg>
  <cntper>Shandy Bittle</cntper>
  </cntorgp>
  <cntpos>Project Manager</cntpos>
- <cntaddr>
  <addrtype>mailing and physical</addrtype>
  <address>100 Centennial Mall N.</address>
  <address>Suite 152</address>
  <city>Lincoln</city>
  <state>Ne</state>
  <postal>68508</postal>
  <country>US</country>
  </cntaddr>
  <cntvoice>402-437-4020</cntvoice>
  <cntemail>Shandy.Bittle@ne.usda.gov</cntemail>
  <hours>0800-1500</hours>
  </cntinfo>
  </metc>
  <metstdn>FGDC Content Standard for Digital Geospatial Metadata</metstdn>
  <metstdv>FGDC-STD-001-1998</metstdv>
  <mettc>local time</mettc>
  </metainfo>
  </metadata>