20130321154757001.0FGDC CSDGM MetadataFALSE1500000005000file://\\CVO-168\D\Vectors\Ground_Survey_Points\Wallowa_Ground_Check_Points.shpLocal Area NetworkWallowa_Ground_Check_Points1952172.8360002222509.2280001315343.7690001445772.71800010.008ProjectedGCS_NAD_1983_2011Linear Unit: Foot (0.304800)NAD_1983_2011_Oregon_Statewide_Lambert_Feet_Intl<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.1'><WKT>PROJCS["NAD_1983_2011_Oregon_Statewide_Lambert_Feet_Intl",GEOGCS["GCS_NAD_1983_2011",DATUM["D_NAD_1983_2011",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["false_easting",1312335.958005249],PARAMETER["false_northing",0.0],PARAMETER["central_meridian",-120.5],PARAMETER["standard_parallel_1",43.0],PARAMETER["standard_parallel_2",45.5],PARAMETER["latitude_of_origin",41.75],UNIT["Foot",0.3048]]</WKT><XOrigin>-118489100</XOrigin><YOrigin>-97381100</YOrigin><XYScale>37592196.316242374</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.0032808398950131233</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision></ProjectedCoordinateSystem>FGDC20160130122613002016013012233000Provide support for high resolution terrain elevation data from the OLC Wallowa LiDAR dataset. <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This shapefile represents the RTK (real time kinematic) ground check points collected for the OLC Wallowa LiDAR dataset. RTK ground check points are used to assess the vertical accuracy of the LiDAR data. The horizontal datum for this dataset is NAD83 (2011), the vertical datum is NAVD88, Geoid 12A, and the data is projected in Oregon Statewide Lambert. Units are in International Feet. Quantum Spatial collected the OLC Wallowa LiDAR data for the Oregon LiDAR Consortium between 07/04/15 and 07/15/15.</SPAN></P></DIV></DIV></DIV>2016/01/29Quantum Spatial541-752-1204517 SW 2nd St., Suite 400CorvallisOR97333UShttp://www.quantumspatial.comQuantum Spatialvector digital dataWallowa_Ground_Check_PointsLiDARLight Detection and Rangingreal time kinematicRTKground check pointGCPWallowa CountyOregonWallowaGrande RondeEnterpriseJosephLiDARRTKreal time kinematicground check pointGCPShapefileWallowa CountyOregonWallowa, Grande Ronde, Enterprise, JosephOregon LiDAR ConsortiumThis data is projected in Oregon Statewide Lambert.Jacob EdwardsOregon LiDAR Consortium800 NE Oregon St, Suite 965PortlandOregon97232jacob.edwards@dogami.state.or.usUS971-673-1557Jacob EdwardsPlease contact the Oregon LiDAR Consortium for information regarding the use of this data.OLC Wallowa LiDAR2015-07-042015-07-15Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.0.30351-118.011633-116.93940945.68942945.30469420130319Quantum Spatial541-752-1204517 SW 2nd St., Suite 400CorvallisOR97333UShttp://www.quantumspatial.comQuantum SpatialAcquisition. Quantum Spatial collected the OLC Wallowa LiDAR data between 07/04/15 and 07/15/15. The survey used a Leica ALS70 laser system mounted in a Cessna Caravan. Data was collected using multi pulse flight plan. Near nadir scan angles were used to increase penetration of vegetation to ground surfaces. Ground level GPS and aircraft IMU were collected during the flight.
Leica ALS70 Instrument Parameters:
Beam diameter: 32 cm,
Pulse rate: 198 kHz,
Maximum returns: 4,
Speed: 110 knots,
Overlap: 60 %,
Laser power: 71 %,
Field of view (FOV): 28°,
Beam wavelength: 1064 nm,
Frequency of GPS sampling: 2 Hz,
Frequency of IMU sampling: 200 Hz,
Swath width: 750 m,
AGL: 1400 m,
Average pulse density: 8ppms2015-07-15For the real time kinetic (RTK) check point data collection, a Trimble R7 base unit was positioned at a nearby monument to broadcast a kinematic correction to a roving Trimble R8 and R10 receiver. All RTK measurements were made during periods with a Position Dilution of Precision (PDOP) of 3.0 or less with at least six satellites in view of the stationary and roving receivers. When collecting RTK data, the rover would record data while stationary for five seconds, then calculate the pseudorange position using at least three one-second epochs. RTK positions were collected on paved roads and other hard surface locations such as gravel or stable dirt roads with good satellite visibility. RTK measurements were not taken on highly reflective surfaces such as center line stripes or lane markings on roads due to the increased noise seen in the laser returns over these surfaces.Relative error for the RTK check point must be less than 1.5 cm horizontal and 2.0 cm vertical in order to be accepted. 192 ground check points were collected and utilized in the verification of the vertical accuracy of the LiDAR data point cloud.The distribution of ground check points depended on ground access constraints and may not be equitably distributed throughout the study area. Jacob EdwardsOregon LiDAR Consortium800 NE Oregon St, Suite 965PortlandOregon97232jacob.edwards@dogami.state.or.usUS971-673-1557Jacob EdwardsShapefile10.10.008RTK ground control pointQuantum SpatialWallowa_Ground_Check_PointsFeature Class192FIDFIDOID400Internal feature number.EsriSequential unique whole numbers that are automatically generated.ShapeShapeGeometry000Feature geometry.EsriCoordinates defining the features.XXEasting Quantum SpatialEasting of the control point in Oregon Statewide Lambert, International FeetDouble1900YYNorthingQuantum SpatialNorthing of the control point in Oregon Statewide Lambert, International FeetDouble1900ZZElevationQuantum SpatialElevation of the control point, NAVD88, Geoid 12ADouble1900dataset192SimpleFALSE192TRUETRUE