
<metadata>
	<idinfo>
		<citation>
			<citeinfo>
				<origin>Hope Morgan, NC Emergency Management, GIS Manager - GTM</origin>
				<pubdate>20141231</pubdate>
				<title>Lidar data for North Carolina Phase 2 -  QL2 LiDAR 2014</title>
				<geoform>raster</geoform>
			</citeinfo>
		</citation>
		<descript>
		<abstract>
			Geographic Extent: North Carolina Area of Interest for QL2 LiDAR, covering approximately 13,002 square miles. 
			Dataset Description: This project was a joint effort between NC Emergency Management, NC Geodetic Survey, and the NCDOT.  The following people served as the main representatives for each stakeholder:  NC Emergency Management- Hope Morgan(primary contact) and John Dorman; NC Geodetic Survey- Gary Thompson and Steve Kauffman; NCDOT- Keith Johnston and Marc Swartz. The United States Marine Corps (USMC), United States Geological Survey (USGS), and the National Resources Conservation Service(NRCS)were also stakeholders and their representative roles can be found in the project coordination Issue Papers.  The data set was collected specific to the 2014 Phase Two project area consisting of 20 North Carolina counties which are listed below in the "Place Keywords" section of this metadata record. The LiDAR was collected between January 30 and March 13 of 2014, at nominal post spacing of 0.7 meters or beter for a total project area of 14,500 square miles. Three sensors were used for the data collection; two Leica ALS70HP-II (serial numbers 7198 and 7123) and an Optech Pegasus HA500 (serial number 13SEN303). All data was collected during leaf-off conditions and the three coastal counties within the project area were collected during low tide conditions. Ground survey support for the project included the establishment of GPS base stations and the collection of control points used for calibration. All data was delivered in the North Carolina State Plane Coordinate System, with a horizontal datum of NAD83 (2011), vertical datum of NAVD88 (Geoid 12A), in US Survey Feet. Data was delivered tiled to a 5,000 foot by 5,000 foot tiling scheme unless otherwise specified in this product description. All LiDAR was delivered in LASer (LAS) version 1.3 standard format. Products for this project derived from the source LiDAR included: intensity images in GeoTIFF format, hydro-flattening breaklines in ESRI File Geodatabase format, Digital Elevation Models (DEMs) in ESRI Grid format, ESRI Terrain Datasets (by county) in ESRI File Geodatabase format, product and project-level metadata, and project reports to include the Report of Survey, Post-Acquisition Report, and Project Report. All LiDAR and derivative products for this project met the specifications stipulated in Delivery Order 59 and the NC LiDAR Standard. </abstract>
		<purpose>The purpose of this project was to update existing LiDAR data, originally collected between 2000 and 2005, with more accurate and clearly defined LiDAR data utilizing the latest in sensor technology. Although created for the North Carolina Floodplain Mapping Program for specific use in the engineering aspects of floodplain delineation, the data were also developed to address the elevation data requirements of the broader geospatial community. The North Carolina Floodplain Mapping Program was established in response to the extensive damage caused by Hurrican Floyd in 1999.</purpose>
		</descript>
		<timeperd>
			<timeinfo>
				<rngdates>
					<begdate>20140130</begdate>
					<enddate>20141231</enddate>
				</rngdates>
			</timeinfo>
			<current>ground condition</current>
		</timeperd>
		<status>
			<progress>Complete</progress>
			<update>None planned</update>
		</status>
		<spdom>
			<bounding>
				<westbc>-79.483096</westbc>
				<eastbc>-77.047314</eastbc>
				<northbc>36.566115</northbc>
				<southbc>33.81971</southbc>
			</bounding>
		</spdom>
		<keywords>
			<theme>
				<themekt>ISO 19115 Topic Categories</themekt>
				<themekey>model</themekey>
				<themekey>LAS Point Cloud</themekey>
				<themekey>remote sensing</themekey>
				<themekey>Elevation data</themekey>
				<themekey>Lidar</themekey>
			</theme>
			<place>
				<placekt>None</placekt>
				<placekey>North Carolina</placekey>
				<placekey>Bladen</placekey>
				<placekey>Brunswick County</placekey>
				<placekey>Columbus County</placekey>
				<placekey>Duplin County</placekey>
				<placekey>Edgecombe County</placekey>
				<placekey>Franklin County</placekey>
				<placekey>Greene County</placekey>
				<placekey>Halifax County</placekey>
				<placekey>Johnston County</placekey>
				<placekey>Hertford County</placekey>
				<placekey>Lenoir County</placekey>
				<placekey>Nash County</placekey>
				<placekey>New Hanover County</placekey>
				<placekey>Northampton County</placekey>
				<placekey>Pender County</placekey>
				<placekey>Robeson County</placekey>
				<placekey>Sampson County</placekey>
				<placekey>Vance County</placekey>
				<placekey>Warren County</placekey>
				<placekey>Wayne County</placekey>
				<placekey>Wilson County</placekey>
			</place>
		</keywords>
		<accconst>No restrictions apply to these data.</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 it's limitations. Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data.</useconst>
		<ptcontac>
			<cntinfo>
				<cntorgp>
					<cntorg>NC Emergency Management - Risk Management</cntorg>
					<cntper>Hope Morgan</cntper>
				</cntorgp>
				<cntpos>GIS Manager - GTM</cntpos>
				<cntaddr>
					<addrtype>mailing</addrtype>
					<address>4218 Mail Service Center</address>
					<city>Raleigh</city>
					<state>NC</state>
					<postal>27699-4218</postal>
					<country>USA</country>
				</cntaddr>
				<cntaddr>
					<addrtype>physical</addrtype>
					<address>NCNG Campus- Bowers Building</address>
					<address>4105 Reedy Creek Road</address>
					<city>Raleigh</city>
					<state>NC</state>
					<postal>27607</postal>
					<country>USA</country>
				</cntaddr>
				<cntvoice>919-715-5711</cntvoice>
				<cntfax>919-715-0408</cntfax>
				<cntemail>hope.morgan@ncdps.gov</cntemail>
				<hours>Monday through Friday 9:00 AM to 5:00 PM (Eastern Time)</hours>
				<cntinst>If unable to reach the contact by telephone, please send an email.</cntinst>
			</cntinfo>
		</ptcontac>
		<datacred>The ESP Team, consisting of ESP Associates, Surdex Corporation, Merrick and Company, and The Atlantic Group, performed all data collection, ground support, and data processing for this project.</datacred>
		<native>MicroStation Version 8; TerraScan Version 14; ESRI ArcGIS 10.2.1; Optech DashMAP 5.1000; ALS Post Processor 2.75; Windows 7 Operating System; ESP Analyst; QCoherent LP360</native>
	</idinfo>
	<dataqual>
		<logic>Data collection information and raw flight lines were tested and reviewed by ESP Associates for consistency and completeness prior to data calibration. Calibrated data was reviewed for completness, the horizontal and vertical "fit" to project control, as well as the relative fit line to line and lift to lift. Each data product was reviewed for completness and homogeneity prior to delivery. Independent verification of the classified LAS files to ensure that the data meet the RMSE standards of the North Carolina Floodplain Mapping Program was conducted by the North Carolina Geodetic Survey and is described in further detail under the "Absolute External Positional Accuracy" section of this metadata. Derivative products were reviewed for adherance to the project specifications, consistency, and completeness prior to delivery.</logic>
		<complete>
			Datasets contain complete coverage of tiles.
			No points have been removed or excluded.
			A visual qualitative assessment was performed to ensure data completeness.
			There are no void areas or missing data. The raw point cloud is of good quality and data passes Fundamental Vertical Accuracy specifications.
		</complete>
		<posacc>
			<vertacc>
				<vertaccr>The project specification required LiDAR to be collected at a nominal post spacing of 0.7 meter or better and post-processed to meet a LiDAR Specification at a Fundamental Vertical Accuracy (FVA) of 18.2 centimeters (cm) at the 95-percent confidence level (9.25cm RMSEZ)or better to support a 1' contour interval.</vertaccr>
				<qvertpa>
					<vertaccv>0.0925</vertaccv>
					<vertacce>LiDAR full return mass points were compared with surveyed elevations provided by independent contractors to the North Carolina Geodetic Survey. For the North Carolina Floodplain Mapping Program, LiDAR Specification at a Fundamental Vertical Accuracy (FVA) of 18.2 centimeters (cm) at the 95-percent confidence level (9.25cm RMSEZ).  (in bare ground). Data was tested by county. The RMSEz value by county is available in the LiDAR Accuracy Assessment Report. These reports are available and may be viewed at: http://www.ncgs.state.nc.us</vertacce>
				</qvertpa>
			</vertacc>
		</posacc>
		<lineage>
			<procstep>
				<procdesc>
					Raster DEM Process for a 5, 10, or 20 foot cel size DEM: 
					Class 2 LiDAR was used by NCEM - Risk Management to create a 5, 10, and 20 foot Raster DEM.  Using automated scripting routines within QCoherent's LP360, an ESRI raster ACS file was created for each tile within the project area.  Each surface is reviewed using CompassTA to check for any surface anomalies or incorrect elevations found within the surface.</procdesc>				<procdesc>
					Hydro Enforced Raster DEM Process for a 50 foot cel size hydro enforeced DEM: 
					Class 2 LiDAR in conjunction with the hydro breaklines were used by NCEM - Risk Management to create a 50 foot Raster DEM.  Using automated scripting routines within QCoherent's LP360, an ESRI raster ACS file was created for each tile.  Each surface is reviewed using CompassTA to check for any surface anomalies or incorrect elevations found within the surface.</procdesc>
				<srcused>Lidar data for North Carolina Phase 2 -  QL2 LiDAR 2014</srcused>
				<procdate>2014</procdate>
				<srcprod>Hydro Enforced Raster DEMs</srcprod>
				<proccont>
					<cntinfo>
						<cntorgp>
							<cntorg>NCEM - Risk Management.</cntorg>
						</cntorgp>
						<cntaddr>
							<addrtype>mailing</addrtype>
							<address>4218 Mail Service Center</address>
							<city>Raleigh</city>
							<state>NC</state>
							<postal>27699-4218</postal>
							<country>USA</country>
						</cntaddr>
						<cntaddr>
							<addrtype>physical</addrtype>
							<address>NCNG Campus- Bowers Building</address>
							<address>4105 Reedy Creek Road</address>
							<city>Raleigh</city>
							<state>NC</state>
							<postal>27607</postal>
							<country>USA</country>
						</cntaddr>
						<cntvoice>919-715-5711</cntvoice>
						<cntfax>919-715-0408</cntfax>
						<cntemail>hmorgan@ncdps.gov</cntemail>
						<hours>Monday through Friday 8:00 AM to 5:00 PM (Eastern Time)</hours>
						<cntinst>If unable to reach the contact by telephone, please send an email.</cntinst>
					</cntinfo>
				</proccont>
			</procstep>
		</lineage>
	</dataqual>
	<spdoinfo>
		<direct>Point</direct>
		<ptvctinf>
			<sdtsterm>
				<sdtstype>Point</sdtstype>
			</sdtsterm>
		</ptvctinf>
	</spdoinfo>
	<spref>
		<horizsys>
			<planar>
				<gridsys>
					<gridsysn>State Plane Coordinate System 1983</gridsysn>
					<spcs>
						<spcszone>3200</spcszone>
						<lambertc>
							<stdparll>34.33333333</stdparll>
							<stdparll>36.16666667</stdparll>
							<longcm>36.16666667</longcm>
							<latprjo>33.75000000</latprjo>
							<feast>2000000.00261667</feast>
							<fnorth>0.0</fnorth>
						</lambertc>
					</spcs>
				</gridsys>
				<planci>
					<plance>coordinate pair</plance>
					<coordrep>
					<absres>5.0</absres>
					<ordres>5.0</ordres>
					</coordrep>
					<plandu>feet</plandu>
				</planci>
			</planar>
			<geodetic>
				<horizdn>North American Datum of 1983 (2011)</horizdn>
				<ellips>Geodetic Reference System 80</ellips>
				<semiaxis>6378137</semiaxis>
				<denflat>298.257222101</denflat>
			</geodetic>
		</horizsys>
		<vertdef>
			<altsys>
				<altdatum>North American Vertical Datum of 1988 GEOID12a</altdatum>
				<altres>0.01</altres>
				<altunits>feet</altunits>
				<altenc>Explicit elevation coordinate included with horizontal coordinates</altenc>
			</altsys>
		</vertdef>
	</spref>
	<metainfo>
		<metd>20150123</metd>
		<metc>
			<cntinfo>
				<cntorgp>
					<cntorg>NCEM - Risk Management.</cntorg>
					<cntper>Hope Morgan</cntper>
				</cntorgp>
				<cntpos>GIS Manager - GTM</cntpos>
				<cntaddr>
					<addrtype>mailing</addrtype>
					<address>4218 Mail Service Center</address>
					<city>Raleigh</city>
					<state>NC</state>
					<postal>27699-4218</postal>
					<country>USA</country>
				</cntaddr>
				<cntaddr>
					<addrtype>physical</addrtype>
					<address>NCNG Campus- Bowers Building</address>
					<address>4105 Reedy Creek Road</address>
					<city>Raleigh</city>
					<state>NC</state>
					<postal>27607</postal>
					<country>USA</country>
				</cntaddr>
				<hours>Monday through Friday 8:00 AM to 5:00 PM (Eastern Time)</hours>
				<cntinst>If unable to reach the contact by telephone, please send an email.</cntinst>
			</cntinfo>
		</metc>
		<metstdn>FGDC Content Standard for Digital Geospatial Metadata</metstdn>
		<metstdv>FGDC-STD-001-1998</metstdv>
		<metac>None.</metac>
		<metuc>None.</metuc>
		<metsi>
			<metscs>None.</metscs>
			<metsc>Unclassified</metsc>
			<metshd>NONE</metshd>
		</metsi>
	</metainfo>
</metadata>

