<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE metadata SYSTEM "http://www.fgdc.gov/metadata/fgdc-std-001-1998.dtd">
<metadata>
	<idinfo>
		<citation>
			<citeinfo>
				<origin>Surdex Corporation</origin>
				<pubdate>2021</pubdate>
				<pubtime>Unknown</pubtime>
				<title>Douglas County:City of Lawrence DEM</title>
				<geoform>raster data</geoform>
			</citeinfo>
		</citation>
		<descript>
<abstract>A 3.0 feet cell size Digital Elevation Model (DEM) raster was created from the ground classified lidar points plus the breaklines for the County's QL2 data set while a cell size of 1.0 foot was created for the City in their QL1 area. The files are delivered in ISGS tile format (3,072ft by 3,072ft), The rasters are delivered in GeoTIFF format.</abstract>
		<purpose>To acquire detailed surface elevation data for the County of Douglas, Kansas and the City of Lawrence, Kansas.</purpose>
</descript>
<timeperd>
<timeinfo>
<rngdates>
<begdate>20210121</begdate>
<begtime>unknown</begtime>
<enddate>20210123</enddate>
<endtime>unknown</endtime>
</rngdates>
</timeinfo>
<current>ground condition</current>
</timeperd>
<status>
<progress>Complete</progress>
<update>Unknown</update>
</status>
<spdom>
<bounding>
<westbc>
-95.502042</westbc>
<eastbc>
-95.055523</eastbc>
<northbc>
39.069932</northbc>
<southbc>
38.737985</southbc>
</bounding>
</spdom>
<keywords>
<theme>
<themekt>none</themekt>
<themekey>lidar</themekey>
<themekey>dem</themekey>
<themekey>breaklines</themekey>
</theme>
<place>
<placekt>none</placekt>
<placekey>Douglas</placekey>
<placekey>Kansas</placekey>
</place>
<temporal>
<tempkt>none</tempkt>
<tempkey>2021</tempkey>
</temporal>
</keywords>
<accconst>Unknown</accconst>
<useconst>Unknown</useconst>
<ptcontac>
<cntinfo>
<cntorgp>
					<cntorg>County of Douglas</cntorg>
					<cntper>Bryce Hirschman</cntper>
				</cntorgp>
				<cntpos>GIS Coordinator, Douglas County GIS</cntpos>
				<cntaddr>
					<addrtype>mailing address</addrtype>
					<address>Douglas County</address>
					<address>1100 Massachusetts St.</address>
					<city>Lawrence</city>
					<state>KS</state>
					<postal>66044</postal>
				</cntaddr>
				<cntvoice>(785) 838-2422</cntvoice>
				<cntemail>bhirschman@douglascountyks.org</cntemail>
</cntinfo>
</ptcontac>
<native>Microsoft Windows 10 Service Pack 1; ESRI ArcCatalog 10.6.1</native>
</idinfo>
<dataqual>
<attracc>
<attraccr>Verification of attribute accuracy for lidar data involves the use of filtering techniques.  Auto-filtering uses algorithms to reclassify data in the point cloud.  Hand-filtering involves the analysis 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>The dataset was reviewed to ensure completeness and accuracy.</complete>
<posacc>
<horizpa>
<horizpar>This data set was produced to meet ASPRS Positional Accuracy Standards for Digital Geospatial Data (2014) for a 24.47cm RMSEx / RMSEy Horizontal Accuracy Class which equates to Positional Horizontal Accuracy = +/- 42.35cm at a 95% confidence level.</horizpar>
</horizpa>
<vertacc>
<vertaccr>This data set was tested to meet ASPRS Positional Accuracy Standard for Digital Geospatial Data (2014) for a 10.0-cm RMSEz Vertical Accuracy Class. Actual NVA accuracy was found to be RMSEz = 2.726cm, equating to +/- 5.344cm at the 95% confidence level. Actual VVA accuracy was found to be +/- 14.888cm at the 95th percentile.</vertaccr>
</vertacc>
</posacc>
<lineage>
<srcinfo>
<srccite>
<citeinfo>
<origin>Surdex</origin>
<pubdate>2021</pubdate>
<pubtime>Unknown</pubtime>
<title>Lidar checkpoints</title>
<geoform>spreadsheet</geoform>
<serinfo>
<sername>LIDAR checkpoints</sername>
<issue>LIDAR checkpoints</issue>
</serinfo>
<pubinfo>
<pubplace>Chesterfield, MO</pubplace>
<publish>Surdex</publish>
</pubinfo>
</citeinfo>
</srccite>
<srcscale>1200</srcscale>
<typesrc>disc</typesrc>
<srctime>
<timeinfo>
<sngdate>
<caldate>2021</caldate>
<time>unknown</time>
</sngdate>
</timeinfo>
<srccurr>ground condition</srccurr>
</srctime>
<srccitea>Lidar checkpoints</srccitea>
<srccontr>Minimum 30 NVA checkpoints, 20 VVA checkpoints</srccontr>
</srcinfo>
<srcinfo>
<srccite>
<citeinfo>
<origin>Surdex Corporation</origin>
<pubdate>2021</pubdate>
<pubtime>Unknown</pubtime>
<title>Lidar</title>
<geoform>LAS data</geoform>
<serinfo>
<sername>LIDAR</sername>
<issue>LIDAR</issue>
</serinfo>
<pubinfo>
<pubplace>Chesterfield, MO</pubplace>
<publish>Surdex Corporation</publish>
</pubinfo>
</citeinfo>
</srccite>
<srcscale>1200</srcscale>
<typesrc>disc</typesrc>
<srctime>
<timeinfo>
<rngdates>
<begdate>2021021</begdate>
<begtime>unknown</begtime>
<enddate>20210123</enddate>
<endtime>unknown</endtime>
</rngdates>
</timeinfo>
<srccurr>ground condition</srccurr>
</srctime>
<srccitea>Lidar</srccitea>
<srccontr>ASPRS LAS 1.4 QL2 specifications, two points per square meter.</srccontr>
</srcinfo>
<procstep>
<procdesc>Using ESRI software a 3.0 foot DEM ESRI Grid file was created using the ground classified lidar points along with the breaklines. The files are delivered in 3,072 ft by 3,072 ft tiles.</procdesc>
<procdate>20210503</procdate>
<proccont>
<cntinfo>
<cntperp>
<cntper>Jim Gottgetreu</cntper>
<cntorg>Surdex</cntorg>
</cntperp>
<cntpos>Project Manager</cntpos>
<cntaddr>
<addrtype>mailing and physical address</addrtype>
<address>520 Spirit of St. Louis Blvd.</address>
<city>Chesterfield</city>
<state>MO</state>
<postal>63005</postal>
</cntaddr>
<cntvoice>636-368-4400</cntvoice>
<cntemail>jimg@surdex.com</cntemail>
</cntinfo>
</proccont>
</procstep>
</lineage>
</dataqual>
<spdoinfo>
<direct>Raster</direct>
<rastinfo>
<rasttype>Pixel</rasttype>
</rastinfo>
</spdoinfo>
<spref>
		<horizsys>
			<planar>
				<planci>
					<plance>coordinate pair</plance>
					<coordrep>
						<absres>1</absres>
						<ordres>1</ordres>
					</coordrep>
					<plandu Sync="TRUE">feet</plandu>
				</planci>
				<gridsys>
					<gridsysn>State Plane Coordinate System 1983</gridsysn>
					<spcs>
						<spcszone Sync="TRUE">1501</spcszone>
						<transmer>
							<sfctrmer Sync="TRUE">0.9999411764705882</sfctrmer>
							<longcm Sync="TRUE">-98.00000</longcm>
							<latprjo Sync="TRUE">38.333333</latprjo>
							<feast Sync="TRUE">1312333.333333</feast>
							<fnorth Sync="TRUE">0.00000</fnorth>
						</transmer>
					</spcs>
				</gridsys>
			</planar>
			<geodetic>
				<horizdn>NAD_1983_StatePlane_Kansas_North_Ft_US</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,Geoid2018</altdatum>
				<altres>1</altres>
				<altunits>feet</altunits>
				<altenc>Explicit elevation coordinate included with horizontal coordinates</altenc>
			</altsys>
		</vertdef>
</spref>
<eainfo>
<detailed>
<enttyp>
<enttypl>
DEM</enttypl>
<enttypd>DEM</enttypd>
<enttypds>Surdex</enttypds>
</enttyp>
</detailed>
<overview>
<eaover>3.0 foot cell size Digital Elevation Model (DEM)</eaover>
<eadetcit>3.0 foot cell size Digital Elevation Model (DEM)</eadetcit>
</overview>
</eainfo>
<metainfo>
<metd>20210522</metd>
<metc>
<cntinfo>
<cntperp>
<cntper>Jim Gottgetreu</cntper>
<cntorg>Surdex</cntorg>
</cntperp>
<cntpos>Project Manager</cntpos>
<cntaddr>
<addrtype>mailing and physical address</addrtype>
<address>520 Spirit of St. Louis Blvd.</address>
<city>Chesterfield</city>
<state>MO</state>
<postal>63005</postal>
</cntaddr>
<cntvoice>636-368-4400</cntvoice>
<cntemail>jimg@surdex.com</cntemail>
</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>
