20120629160936001.0FGDC CSDGM MetadataFALSECon R:\LiDAR\Willow\Digital_Elevation_Models\Bare_Earth_DEM\TIFF\WIL_063_DEM.tif R:\LiDAR\Willow\Digital_Elevation_Models\Bare_Earth_DEM\TIFF\WIL_063_DEM.tif R:\LiDAR\Willow\Digital_Elevation_Models\Bare_Earth_DEM\temp\WIL_063_DEM.tif # "Value > -32767"CalculateStatistics R:\LiDAR\Willow\Digital_Elevation_Models\Bare_Earth_DEM\temp\WIL_063_DEM.tif 1 1 #WIL_063_DEM.tiffile://F:\Matsu\LiDAR\Willow\Digital_Elevation_Models\Bare_Earth_DEM\TIFF\WIL_063_DEM.tifLocal Area Network0021654918.0000021671322.0000022854827.0000002871231.0000001ProjectedGCS_North_American_1983Linear Unit: Foot_US (0.304801)NAD_1983_StatePlane_Alaska_4_FIPS_5004_Feet<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/10.0'><WKT>PROJCS["NAD_1983_StatePlane_Alaska_4_FIPS_5004_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",1640416.666666667],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-150.0],PARAMETER["Scale_Factor",0.9999],PARAMETER["Latitude_Of_Origin",54.0],UNIT["Foot_US",0.3048006096012192]],VERTCS["NAVD_1988",VDATUM["North_American_Vertical_Datum_1988"],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["Foot_US",0.3048006096012192]]</WKT><XOrigin>-16806300</XOrigin><YOrigin>-52448700</YOrigin><XYScale>137255069.87923574</XYScale><ZOrigin>-100000</ZOrigin><ZScale>3048.0060960121918</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.0032808333333333335</XYTolerance><ZTolerance>0.0032808333333333335</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102634</WKID></ProjectedCoordinateSystem>32FALSENone1TIFFFALSEcontinuousfloating point-3.4028235e+03820130522112746002013052211274600Lidar ManagerAerometric, Inc.Lidar Manager(907) 272-4495(907) 274-32652014 Merrill Field DriveAnchorageAlaska99501-4116USaerometric@aerometric-ak.com8:00 am to 5:00 pm Alaska Standard Time20130522ArcGIS Metadata1.0Lidar ManagerAerometric, Inc.Lidar Manager(907) 272-4495(907) 274-32652014 Merrill Field DriveAnchorageAlaska99501-4116USaerometric@aerometric-ak.com8:00 am to 5:00 pm Alaska Standard TimeRaster DatasetWIL_063_DEM.tif2012-03-131.0Aerometricdigital raster dataThis delivery contains lidar derived 3.2808 ft resolution raster grid files of the classified ground points in ESRI ArcGrid format. Closed water bodies greater than one acre and double line drain features were used to create flattened water surfaces in these models. The following are the collection parameters and equipment used to create these data sets. Aircrafts: Cessna 310(N7516Q) and Piper Navajos (N6GR and T73TM) Lidar Systems: Optech ALTM Gemini (03SEN145 and 07SEN201) Approximate Collection Altitude (Above Mean Terrain): 1400 meters Ground Speed: 150 kts Pulse Rate Frequency: 70 kHz Mirror Scan Frequency: 40 Hz Scan Angle (+/-): 17 degrees Beam Divergence: Narrow (0.3 mrad) Accuracy statements are based on areas of moderate terrain, with points classified as ground. Diminished accuracies are to be expected in areas of extreme terrain and dense vegetation. The accuracy of each point is expected to meet the vertical accuracy standard, derived products may be less accurate in areas of extreme terrain and dense vegetation due to a lesser number of points defining the ground in these areas.The purpose of this dataset is to provide lidar derived productsLidar ManagerAerometric, Inc.Lidar Manager(907) 272-4495(907) 274-32652014 Merrill Field DriveAnchorageAlaska99501-4116USaerometric@aerometric-ak.com8:00 am to 5:00 pm Alaska Standard TimeWillowUSAAlaskaDEMMay2011Bare-EarthLaserRemote SensingTerrainTopographyLidarElevationWillowBare-EarthLaserRemote SensingTerrainMayTopography2011DEMLidarUSAElevationAlaskaAerometric, Inc. assumes no liability for the data being used for purposes other than stated in this document.PublicMicrosoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.3.3600-150.675928-149.82103661.54271961.858455ground condition2011-05-142011-05-182011-05-102011-05-122011-05-212011-05-132011-05-112011-05-282011-05-262011-05-272011-05-242011-05-201-149.916149-149.82103661.85842961.813469Data has not been verified using ground survey points.Not CompleteNo horizontal accuracy verifications have been completedNo vertical accuracy verifications have been completedCreate breaklines around waterbodiesAutomated classification of the bare-earth data from the lidar point cloud using a series of algorithms customized for the types of terrain encountered in the project.Data Calibration: An in-situ calibration was performed using the data collect for this project. The data was classified in each line separately for ground and other common features between lines, such as building roofs. This data was processed in TerraMatch 11.001 (TerraSolid, Ltd.), to compute corrections for roll, pitch, heading, and mirror scale. These corrections are applied in order to minimize discrepancies between flight lines.Integrate SBET and raw laser data to produce point cloud data in LAS 1.1 format for each flight line.Create a smoothed-best estimated trajectory (SBET) of the sensor at a rate of 200 Hz, by integrating the airborne GPS and IMU data The basis of the GPS coordinates were provided to Aero-Metric by Lounsbury, Inc., and were referenced to NAD83 (CORS96) with GEOID09 derived orthometric heights. The maximum baseline distance for this area was 15 km, the average base line length was 5 km. The mean GPS positional accuracy for this area was +/- 0.06 meters.Manual classification of any data which appears to be properly classified using the automated methods.Create raster files with a resolution of 3.2808 ft of the breakline enforced ground surface.AerometricMatsu Willow DEMMSWB2012-03-131.0Aerometricdigital raster datasurface condition2011-05-112011-05-122011-05-132011-05-242011-05-212011-05-142011-05-102011-05-182011-05-262011-05-202011-05-282011-05-27datasetESRI10.0.02101654918.000002 2854827.0000001654918.000002 2871231.0000001671322.000002 2871231.0000001671322.000002 2854827.0000001663120.000002 2863029.00000050003.28080050003.280800Band_1804.043030346.77499432Foot_US