Spicer Group2016Lidar point cloudGeographic Extent: Saginaw County, MI, covering approximately 815 square miles. Dataset Description: Saginaw County, MI 2016 LiDAR project called for the Planning, Acquisition, processing and derivative products of LIDAR data to be collected at a nominal pulse spacing (NPS) of 0.7 meter. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base LIDAR Specification, Version 1.0. The data was developed based on a horizontal projection/datum of Michigan State Plane South, NAD83, international feet and vertical datum of NAVD1988 (GEOID12A), international feet. LiDAR data was delivered in RAW flight line swath format, then processed to create Classified LAS 1.2 Files formatted to 991 individual 5000 foot X 5000 foot tiles. Corresponding Intensity Images and Bare Earth DEMs tiles were created with the same 5000 foot X 5000 foot tile schema. Breaklines were produced in Esri geodatabase format. Ground Conditions: LiDAR was collected in spring of 2015, while no snow was on the ground and rivers were at or below normal levels. In order to post process the LiDAR data to meet task order specifications, Spicer Group Inc established a total of 120 Land Cover control points (52 QC checkpoints, 68 calibration control points) which were used to calibrate the LIDAR to known ground locations established throughout the Saginaw County, MI project area. 28 additional check points were surveyed by Kucera for the accuracy check of the initial acquisition. these 28 points have been added to the NVA LiDAR and DEM accuracy reports. The LiDAR Accuracy Information for the NVA and VVA is expressed in meters to the 95th percentile. Raw NVA is in meters to the 95% confidence level.Classified LAS files are used to show the manually reviewed bare earth surface. This allows the user to create Intensity Images, Breaklines and Raster DEM. The purpose of these lidar data was to produce high accuracy 3D hydro-flattened Digital Elevation Model (DEM) with a 2 foot cell size. These raw lidar point cloud data were used to create classified lidar LAS files, intensity images, 3D breaklines and hydro-flattened DEMs as necessary.Lidar data were acquired and calibrated by the Kucera International in April 2015 All follow-on processing including ground survety was completed by the Spicer Group in 2016USGS-NGP Base Specification v1.0Leica ALS 70 Serial Number 716140.652.190.652.1921001402037.726140.48106410.221528.679.97National Geodetic Survey (NGS) Geoid12A0.1960.1842600.1082680.1201441.21Withheld (ignore) points were identified in these files using the standard LAS Withheld bitSwath "overage" points were identified in these files using the standard LAS overlap bit11-bit0Never processed20150324ground conditionCompleteNone planned-84.870419456413-84.34692653316543.10725012272243.47800630311312988960.18042713128627.308549721103.79574014585877.9239188NoneElevation dataLidarHydrologyNoneMichiganMISaginaw CountyNo restrictions apply to this data.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 its limitations. Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data.Kucera International Acquisition DepartmentNat Phillipsmailing and physical

38133 Western Parkway

WilloughbyOH44094USA44097542304409754238n.phillips@kucerainternational.comMonday through Friday 8:00 AM to 5:00 PM (Eastern Time)If unable to reach the contact by telephone, please send an email. You should get a response within 24 hours.MicroStation Version 8; TerraScan Version 15; TerraModeler Version 15; GeoCue Version 2014.1.21.1; ESRI ArcGIS 10.2; Global Mapper 16; Leica Cloud Pro 1.2; Windows 7 Operating System \\psihq_nx3200\Projects\26242_Saginaw_Co\ 42.1 GB and \\Matrix\LIDAR\Data cover the entire area specified for this project.These raw LAS data files include all data points collected. No points have been removed or excluded. A visual qualitative assessment was performed to ensure data completeness. No void areas or missing data exist. The raw point cloud is of good quality and data passes Nonvegetated Vertical Accuracy specifications. The NVA was tested using 68 independent surveys located in open terrain. The survey check points were distributed throughout the project area. The 68 independent check points (40 Spicer Group & 28 Kuchera) were surveyed using the closed level loop technique. Elevations from the classified lidar surface were measured for the x,y location of each check point. Elevations interpolated from the lidar surface were then compared to the elevation values of the surveyed control. The NVA RMSE was computed to be 0.181 international feet (5.52 cm). 95% confidence level has been tested to meet 19.6 cm Nonvegetated Vertical Accuracy at 95 percent confidence level using (RMSEz * 1.9600) as defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported using National Digital Elevation Program (NDEP)/ASPRS Guidelines. The NVA RMSE @ 95% confidence level was computed to be 0.355 international feet (10.82 cm). The NVA @ 95th percentile was computed to be 0.345 international feet (10.52 cm). 0.1082 The NVA was tested using 68 independent surveys located in open terrain. The survey check points were distributed throughout the project area. The 68 independent check points (40 Spicer Group & 28 Kuchera) were surveyed using the closed level loop technique. Elevations from the classified lidar surface were measured for the x,y location of each check point. Elevations interpolated from the lidar surface were then compared to the elevation values of the surveyed control. The NVA RMSE was computed to be 0.181 international feet (5.52 cm). 95% confidence level has been tested to meet 19.6 cm Nonvegetated Vertical Accuracy at 95 percent confidence level using (RMSEz * 1.9600) as defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported using National Digital Elevation Program (NDEP)/ASPRS Guidelines. The NVA RMSE @ 95% confidence level was computed to be 0.355 international feet (10.82 cm). The NVA @ 95th percentile was computed to be 0.345 international feet (10.52 cm). Spicer Group20160324vector digital data and tabular dataSaginaw MISpicer GroupCD-ROM20160324ground conditionMI_SaginawCo_2016_LiDAR_ctrlThis data source was used (along with the airborne GPS/IMU Data) to aid in the georeferencing of the lidar point cloud data.Spicer Group2016lidar dataSpicer Group2016online2016031620160324ground conditionMI_SaginawCo_2016_LiDAR_DataThis data source was used to populate the lidar point cloud data.Lidar Pre-Processing: Airborne GPS and IMU data were merged to develop a Single Best Estimate (SBET) of the lidar system trajectory for each lift. Lidar ranging data were initially calibrated using previous best parameters for this instrument and aircraft. Relative calibration was evaluated using advanced plane-matching analysis and parameter corrections derived. This was repeated iteratively until residual errors between overlapping swaths, across all project lifts, was reduced to acceptable levels. Data were then block adjusted to match surveyed calibration control. Raw data NVA were checked using independently surveyed checkpoints. Swath overage points were identified and tagged within each swath file. The results of the final calibration, NVA and horizontal accuracy assessments, and the "raw" swaths were forwarded to the client to obtain a Notice To Proceed on classification and derivative product generation.MI_SaginawCO_2016_LiDAR_gnd_ctrl2015LiDAR datasets with USGS classificationsSpicer Groupmailing and physical

6600 Peachtree Dunwoody Rd Bldg 400 Ste 108

AtlantaGA30328USA678-585-6501678-585-6501Monday through Friday 8:00 AM to 5:00 PM (Eastern Time)If unable to reach the contact by telephone, please send an email. You should get a response within 24 hours.Lidar Post-Processing: The calibrated and controlled lidar swaths were processed using automatic point classification routines in proprietary software. These routines operate against the entire collection (all swaths, all lifts), eliminating character differences between files. Data were then distributed as virtual tiles to experienced lidar analysts for localized automatic classification, manual editing, and peer-based QC checks. Supervisory QC monitoring of work in progress and completed editing ensured consistency of classification character and adherence to project requirements across the entire project area. All classification tags are stored in the original swath files. After completion of classification and final QC approval, the NVA and VVA for the project are calculated. Sample areas for each land cover type present in the project area were extracted and forwarded to the client, along with the results of the accuracy tests. Upon acceptance, the complete classified lidar swath files were delivered to the client.MI_SaginawCo_2015_LiDAR_ctrlMI_Saginaw_2015_LiDAR_Data2015MI_SaginawCo_2015_LiDAR_DataSpicer GroupNathan Shepherdmailing and physical

6600 Peachtree Dunwoody Rd Bldg 400 Ste 108

AtlantaGA30328USA678-585-6501678-585-6501nathans@spicergroup.comMonday through Friday 8:00 AM to 5:00 PM (Eastern Time)If unable to reach the contact by telephone, please send an email. You should get a response within 24 hours.VectorPointState Plane Coordinate System 1983211342.143.66666666666666-84.3666666666666641.513123359.580052490.0coordinate pair0.010.01international feetNorth American Datum of 1983Geodetic Reference System 806378137298.257222101North American Vertical Datum of 19880.01international feetExplicit elevation coordinate included with horizontal coordinates20160509Spicer GroupNathan Shepherdmailing and physical

6600 Peachtree Dunwoody Rd, Bldg 400, Sutie 108

AtlantaGA30328USA678-585-6501678-585-6501sheperdn@spicergroup.comMonday through Friday 8:00 AM to 5:00 PM (Eastern Time)If unable to reach the contact by telephone, please send an email. You should get a response within 24 hours.FGDC Content Standard for Digital Geospatial MetadataFGDC-STD-001-1998None.None.None.UnclassifiedNONE