Dale Verges, Sanborn Map Company, Inc., St. Louis Office20100526Boone County 2009 LiDAR Data Collection, MOtabular digital dataChesterfield, MODale VergesSummary of the surface elevation data collection project in Boone County, MO 2009. Products generated include LiDAR point data in LAS Binary format v1.2.Support of FEMA's Floodplain Map Modernization Program. Multiple other uses expected.In the spring of 2009, The Sanborn Map Company, Inc. (Sanborn) acquired 1175 square miles of terrestrial LiDAR data in Boone County, MO. An Optech Airborne LiDAR sensor was used for the collection. The LiDAR data associated with this metadata file is in LAS binary format, version 1.2 (ASPRS specification, see Cross References).en2009030120090630ground conditionUnknown-92.634695-91.98953339.25798038.617071585000.000000604500.0000004574250.0000004595250.000000EDI ThesaurusLiDAR Point CloudLiDARISO 19115 Topic Categoryelevation006GCMD Science KeywordsEARTH SCIENCE > Land Surface > Topography > Terrain ElevationnonecustodialGeographic Names Information SystemBoone County, MONone1. Secondary Distribution of the data is not allowed.
2. Any documentation provided is an integral part of the data set. Failure to use the documentation in conjunction with the digital data constitutes misuse of the data.
3. Although every effort has been made to ensure the accuracy of information, errors may be reflected in the data supplied. The user must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other condidions.mailing and physical address
801 E Walnut, Room 123
ColumbiaMO65201-4890USA573-886-4325Jason WarzinikBoone CountyGIS ManagerUnclassifiedNoneFederal Emergency And Management (FEMA)FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix A: Guidance for Aerial Mapping and Surveying20030430documentWashington, DCFEMAIn Guidelines and Specifications for Flood Hazard Mapping Partners, FEMA defines technical requirements, product specifications for Flood Hazard Maps and related National Flood Insurance Program (NFIP) products, and associated coordination and documentation activities.http://www.fema.gov/library/file;jsessionid=D0EF44533EDCE583281BE729E8827AA3.WorkerLibrary?type=publishedFile&file=frm_gsaa.pdf&fileid=67b09a60-95e8-11db-b057-000bdba87d5bLAS_Binary v1.2Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.4.1420Sanborn20090503Boone County Network SurveydocumentBoone County network adjustment results can be found in a document titiled "AdjustReport" on record at Sanborn, 1935 Jamboree Dr. Suite 100, Colorado Springs, CO 809201935 Jamboree Drive, Colorado Springs, CO 80920SanbornLiDAR Exchange Format - LAS version 1.2http://www.asprs.org/society/committees/standards/asprs_las_format_v12.pdfAmerican Society for Photogrammetry & Remote Sensing 20080902UnknowndocumentAll information regarding the LAS file format and attribution information can be found in the .pdf file titled "LAS Specification Version 1.2 September 02, 2008"Bethesda, Maryland 20814-2160 The American Society for Photogrammetry & Remote Sensing LiDAR data was collected and processed in accordance with FEMA guidelines as published in Appendix A (see Cross References)
0.461 RMSE (Feet)The 2009 Boone County LiDAR data associated with this metadata file completely covers the project-specified boundary with no data voids caused by acquisition or sensor issues.The LiDAR data horizontal accuracy is in compliance with the National Standard for Spatial Data Accuracy (NSSDA) RMSE estimation of elevation data in support of 2ft. contour mapping products as it is referenced in the FEMA guidelines for flood hazard mapping, appendix A (see Cross References). 1.000 m RMSEHorizontal error associated with this LiDAR data set is a function of several factors including acquisition practices, height of the sensor above terrain, point spacing, diameter of the pulse footprint, network control station coordinates, kinematic GPS solutions, IMU calibration and post-processing functions.The LiDAR data vertical accuracy is in compliance with the National Standard for Spatial Data Accuracy (NSSDA) RMSE estimation of elevation data in support of 2ft. contour mapping products as it is referenced in the FEMA guidelines for flood hazard mapping, appendix A (see Cross References). The Sanborn Map Company has performed a data accuracy validation and found this data to be in compliance. Additional survery was performed for a ground control analysis of the Boone LiDAR data using ground control checkpoints in several land cover classes and found the resultant RMSE in the exposed ground class to be within the contract specifications of 0.185 meters.0.185 m RMSEVertical error associated with this LiDAR data is a function of several factors including acquisition practices, height of the sensor above terrain, point spacing, diameter of the pulse footprint, network control station coordinates, kinematic GPS solutions, IMU calibration and post-processing functions.Sanborn20090515Report of Survey - Ground ControldocumentGround Control points in State Plane Missouri Central to NAD83 and NAVD88 (Geiod03) in feet.
On record at Sanborn, 1935 Jamboree Drive, Suite 100, Colorado Springs, CO 809201935 Jamboree Drive, Colorado Springs, CO 80920SanbornNot Applicableunknownground conditionBoone County Ground Control PointsGround Control: X,Y,Z
1719706.380,1086295.299,884.647
1720365.934,1085982.875,884.893
1688254.972,1184125.227,744.512
1756968.065,1199299.757,888.485
1641227.571,1149151.144,801.068
1646069.596,1128156.670,710.849
1684547.241,1093494.727,771.716
1666457.753,1061432.903,564.975
1688933.483,1229556.428,864.044
1703539.826,1238339.974,841.857
1768467.729,1233556.927,830.751
1744106.827,1222231.167,887.27
1697342.091,1197787.108,867.042
1654457.475,1207115.964,821.312
1675717.539,1188088.174,763.602
1724090.860,1186647.395,899.834
1773144.742,1194809.666,854.631
1722470.826,1171915.299,848.935
1664983.885,1174373.650,771.638
1645087.747,1176270.833,794.616
1614358.332,1160840.189,597.832
1675322.280,1151952.822,597.694
1619978.825,1136675.343,580.309
1701045.332,1104565.410,806.849
1735236.263,1102611.352,769.368
1730358.095,1083589.482,830.165
1703486.626,1085583.578,842.957
1673951.089,1085675.622,570.214
1739242.924,1065205.826,774.765
1734405.881,1045769.886,804.272
1681771.703,1026701.719,726.781
1654670.969,1234518.304,861.939
1665606.985,1224214.041,775.74
1768139.779,1217651.242,826.8
1696705.447,1223745.672,866.71
1676049.490,1212478.149,840.877
1633579.399,1186313.423,758.683
1731554.631,1211980.780,885.968
1679499.109,1170100.306,754.708
1621927.519,1174731.113,712.456
1746289.793,1154502.647,839.86
1617567.354,1119456.970,607.075
1676310.007,1061927.237,563.778
1690484.212,1067432.831,872.136
1721710.776,1027683.256,595.804
1655216.357,1026685.264,806.697
1654752.320,1042005.895,690.429
1747045.569,1230932.544,868.146
1717955.314,1194772.846,894.985
1766072.008,1162925.977,893.316
1764467.438,1176279.591,929.282
1710803.414,1181728.375,914.7
1747114.177,1176545.721,911.459
1705620.234,1166592.009,858.096
1655614.049,1161859.289,630.979
1703243.787,1152251.541,802.186
1726586.643,1152241.144,890.117
1741672.406,1136666.466,825.807
1724490.202,1135402.502,890.425
1699949.051,1137952.601,725.86
1682288.649,1140150.063,784.857
1669285.467,1128776.671,627.121
1650527.958,1115681.524,576.709
1675615.019,1106658.108,647.499
1724296.139,1114541.836,891.959
1708374.577,1071995.830,902.884
1694976.978,1042062.918,565.87
Data collection:
An Optech Light Detection And Ranging (LiDAR) system collected flightlines of standard density (1.4 meter ground sample distance) data were collected over areas in Boone County, MO (approximately 1175 square miles). Two returns were recorded for each laser pulse along with an intensity value for each return. The data acquisition occurred missions between March 01, 2009 , and June 30, 2009. During the LiDAR campaign, the Sanborn field crew conducted a GPS field survey to establish final coordinates of the ground control stations for final processing of the base-remote GPS solutions.2009Sean MorganSanborn Map Company, Inc.LiDAR Production Managermailing and physical address1935 Jamboree Drive, Suite 100Colorado SpringsColorado80920United States719.264.5513N/A719.528.5093smorgan@sanborn.com8:00 AM - 5:00 PM MSTAirborne GPS processing:
Airborne GPS data was differentially processed and integrated with the post processed IMU data to derive a smoothed best estimate of trajectory (SBET). The SBET was used to reduce the LiDAR slant range measurements to a raw georeferenced point.
Airborne GPS is differentially processed using the GrafNAV v7.50 software by Waypoint Consulting of Calgary, Alberta, Canada.
2009Jamie YoungSanborn Map Company, Inc.LiDAR General Managermailing and physical address1935 Jamboree Drive Suite 100Colorado SpringsColorado80920United States719.264.5602N/A719.264.5637jyoung@sanborn.com8:00 AM - 5:00 PM MSTWaypoint Consulting - GrafNav v7.50IMU data processing:
IMU data provides information concerning roll, pitch and yaw of collection platform during collection event. IMU information allows the pulse vector to be properly placed in 3D space allowing the distance from the aircraft reference point to be properly positioned on the elevation model surface. IMU data is processed using the POSPac v4.2 software by Applanix Corporation of Richmond Hill, Ontario, Canada.2009Jamie YoungSanborn Map Company, Inc.LiDAR General Managermailing and physical address1935 Jamboree Drive Suite 100Colorado SpringsColorado80920United States719.264.5602N/A719.264.5637jyoung@sanborn.com8:00 AM - 5:00 PM MSTApplanix - POSPac v4.2LiDAR point classification
The classification and quality control (QC) of LiDAR data is carried out using TerraScan software v. 8.003 by Terrasolid Limited of Helinski, Finland. The bare earth extraction from the point cloud is the result of a morphological processing routine run in TerraScan. A set of user-defined distances and angles are used by the software to build a ground surface from established 'aerial low seed points'. The reclassifying of the data in areas of overlapping scans is done before the classification of the LAS ground points (DEM). This means the point cloud from which the ground points are extracted is more uniform in terms of point density.
The 'cut-overlap' process is performed with the aid of the aircraft trajectory (reduced to the sensor's trajectory) and the scan angle value within the LAS data. For this project, the value used for cutting the overlap was 25 degrees. This means that data from a single scan greater than 12.5 degrees off nadir was classified to class 12 overlap. Using the trajectory and embedded angle information, the software (TerraScan) is able to properly reclassify the overlap points so that the remaining point cloud is edge-matched. That is to say, there are no data voids within the point cloud with class 12 overlap points turned off. 2009Jamie YoungSanborn Map Company, Inc.LiDAR General Managermailing and physical address1935 Jamboree Drive Suite 100Colorado SpringsColorado80920United States719.264.5602N/A719.264.5637719.264.56378:00 AM - 5:00 PM MSTTerraSolid - TerraScan v.8.000Output LAS files
The tiling and final LAS file creation was performed using LiDAR CuePac v5.0 from GeoCue Corporation of Madison, Alabama, USA. By client specification, the LiDAR point cloud data were cut to square, 750 x 750 meter (~56 Ha, 140 acres) tiles. The naming convention used for the tiles is based on the truncated grid coordinate at the southwest corner point of origin of the tile.2009Jamie YoungSanborn Map Company, Inc.LiDAR General Managermailing and physical address1935 Jamboree Drive Suite 100Colorado SpringsColoradoColoradoUnited States719.264.5602N/A719.264.5602jyoung@sanborn.com8:00 AM - 5:00 PM MSTGeoCue - LiDAR CuePac v5.0Summary and algorithms for filtering data:
The classification algorithms used on the LiDAR point cloud involved several iterative steps including the removal of low points and other outlyers, the culling of overlap data, and finally the classification of the LiDAR DEM. This process begins with automated routines and ends with a 100% manual edit and QC check of the data. Once the data set classification accuracy was deemed sufficient and no quality issues were found, a final vertical accuracy assessment was performed on the LiDAR DEM.2009Jamie YoungSanborn Map Company, Inc.LiDAR General Managermailing and physical address1935 Jamboree Drive Suite 100Colorado SpringsColorado80920United States719.264.5602N/A719.264.5637jyoung@sanborn.com8:00 AM - 5:00 PM MSTData Validation -
The final LiDAR LAS 1.2 was created in State Plane Missouri Central, referenced to NAD83 and NAVD 88, in feet. The final LiDAR DEM was verified against FEMA checkpoints in order to perform a redundency check against the GPS solutions. These accuracy checks also verified that the data meets the guidelines outlined in FEMA's Guidelines and Specifications for Flood Hazard Mapping Partners and Appendix 4B, Airborne Light Detection and Ranging Systems.Not Applicable2009Dataset copied.\\cos-svr-7\vol1\Proj_Management\322009150.Boone County.MO LiDAR\Metadata and Templates\9150_Boone_County_MO_LiDAR_Metadata.xml20100527115000The 2009 Boone County LiDAR data associated with this metadata file has met all quality checks in terms of relative accuracy, absolute accuracy, coverage. and point and file format. The relative accuracy of the LiDAR data refers to how well the data set matches within itself. That is to say, adjacent LiDAR scans are in alignment with each other with no vertical or horizontal shifts caused by improper calibration and/or georeferencing. The absolute elevation has been validated by both offices of Sanborn. This was done by comparing the LiDAR ground surface against known ground control points. The data file format and point attribution is in compliance with the LAS version 1.2 specifications (see ASPRS LAS1.2 cross reference).Pointcoordinate pair0.010.01survey feetState Plane Coordinate System24020.999933-92.50000035.8333331640416.6666670.000000North American Datum of 1983Geodetic Reference System 806378137.000000298.257222GCS_North_American_1983NAD_1983_StatePlane_Missouri_Central_FIPS_2402_FeetNorth American Vertical Datum of 1988 (Geoid03)0.01feetImplicit coordinateSanborn Map Company, Inc., St. Louis Officemailing and physical address
625 Broadway
3rd Floor
AlbanyNY12233-2750USADownloadable DataSanborn Map Company, Inc., provides these geographic data "as is". Sanborn makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. Sanborn further makes no warranty, either expressed or implied, regarding the condition of the product or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on a computer system at Sanborn, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. Sanborn shall not be held liable for improper or incorrect use od the data described and/or contained herein.0.0020.002unknown20100526Sanborn Map Company, Inc.Dale VergesProject Managermailing and physical address
1935 Jamboree Dr. Suite 100
Colorado SpringsCO80920USA636-449-0189719-528-5093dverges@sanborn.com8:00 AM - 5:00 PM MSTN/AFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local timeenhttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile2009090408093300FALSE20100527151231002008071515574900{AB7E4062-C8AE-475F-BF04-056BEBF46013}Local Area Network0020.002Shapefile20100527Raw LAS binary
NAD83 MO Central State Plane, NAVD88 - Geiod03 - US Survey Feet
LAS Version 1.2
Classification:
1 - Unclassified
2 - Bare Earth
7 - Low Points
12 - OverlapThe LAS file is version 1.2 (see ASPRS LAS 1.2 cross reference) and includes the following information at the file level: GUID (project identifier), file creation day and year, Variable Length Records (VLR) which include file projection information. The LAS 1.2 file contains the following information at the point level: Grid coordinate (x,y,z), 8-bit intensity value, return number, scan direction, classification value, Point Source ID (flight-line delineator), GPS Time (GPS seconds of the week). The Point Source ID is an arbitrarily assigned number that is only used to delineate LAS data between different LiDAR scans. The Point Source IDs in this dataset were incremented in chronological order following the LiDAR collection. That is to say line No. 36 was collected after line No. 35. GPS seconds of the week are referenced to UTC time and begin at 00:00:01 Sunday morning and end at 24:00:00 Saturday midnight.Although the header/VLR information varies depending on the sensor used, Sanborn's production software used in this project (point generating software, final tiled LAS file creation software) does not provide a good user interface to this information and hence could not be retrieved for this project.ClassificationLAS Version 1.2, POINT DATA RECORD FORMATN/AN/A2009030120090630Irregular1Unclassified PointSanborn2Bare Earth PointSanborn7Low Points (noise) - Outlyer Point ClassSanborn12Overlap: Flight Line Overlap PointSanbornStandard ASPRS classifications as defined in the values below.Airborne LiDAR Data Point RecordsLiDAR for Boone County, MOSanbornMicrosoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.4.1420Putnam2007-2Collect585000604500459525045742501-73.98447-73.74791741.5043741.3129491ISO 19115 Geographic Information - MetadataDIS_ESRI1.0datasetNAD_1983_UTM_Zone_18N1