Woolpert Inc 20171031 Lidar point cloud Product: These lidar data are processed Classified LAS 1.4 files, formatted to 5,230 individual 5,000 US Feet x 5,000 US Feet tiles in NAD83 (HARN), StatePlane Indiana East FIPS 1301, NAVD88 Geoid12B US Feet; used to create intensity images, 3D breaklines and hydro-flattened DEMs as necessary. Geographic Extent: AOI is located in NE Indiana. The area of interest covers approximately 4,690 square miles. Dataset Description: Indiana Statewide Lidar 2017 B17 Base Option Lidar project called for the Planning, Acquisition, processing and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.70 meter. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 1.2. The data was developed based on a horizontal projection/datum of NAD83 (HARN), StatePlane Indiana EastFIPS 1301, and vertical datum of NAVD88 (GEOID12B), US Feet. Lidar data was delivered as flightline-extent unclassified LAS swaths, as processed Classified LAS 1.4 files, formatted to 5,230 individual 5,000 US Feet x 5,000 US Feet tiles in NAD83 (HARN), StatePlane Indiana East FIPS 1301, US Feet as tiled Intensity Imagery, and as tiled bare earth DEMs; all tiled to the same 5,000 US Feet x 5,000 US Feet schema. Ground Conditions: Lidar was collected in early 2017 by Woolpert, 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 and meet ASPRS vertical accuracy guidelines, Woolpert established a total of 265 ground control points that were used to calibrate the lidar to known ground locations established throughout the project area. Additional independent accuracy checkpoints were collected (84 NVA points and 64 VVA points) and used to assess the vertical accuracy of the data. These checkpoints were not used to calibrate or post process the data. This project will support the state of Indiana and the Natural Resources Conservation Service (NRCS) in Indiana. USGS Contract No. G16PC00022 CONTRACTOR: Woolpert Inc. USGS NGP Base Specifications v1.2 Leica ALS80 infinite 0.70 2.3 0.70 2.3 2377 150 40 35.5 346 5 2.5 1064 1 0.20 1731 25 GEOID12B NAD83 (HARN), StatePlane Indiana EastFIPS 1301 0 0 0 0 0 0 1.4 6 Geometrically unreliable points were identified using a combination of automated and manual techniques and subsequently classified as high or low noise and given the standard Withheld bit. Swath "overage" points were identified in these files using the standard LAS overlap bit. 16 1 Processed, but unclassified 2 Bare-earth 7 Low noise 9 Water 10 Ignored ground 17 Bridge Decks 18 High Noise 20170308 20170402 ground condition Complete As needed -86.099528 -84.779906 41.768459 40.557541 None Lidar Classified Point Cloud None Indiana Lagrange County Steuben County DeKalb County Kosciusko County Whitley County Allen County Adams County Wells County Huntington County Wabash County Noble County No restrictions apply to these 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. Data covers the entire area specified for this project. These 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 Non-Vegetated Vertical Accuracy specifications. This data set was produced to meet ASPRS Positional Accuracy Standard for Digital Geospatial Data (2014) for a 10-cm RMSEz Vertical Accuracy Class. LAS Point Classification: The point classification is performed as described below. The point cloud underwent a classification process to determine bare-earth points and non-ground points utilizing "first and only" as well as "last of many" lidar returns. This process determined Processed, but unclassified (Class 1), Bare-earth ground (Class 2), Low Noise (Class 7), Water (Class 9), Ignored Ground (Class10), Bridge Decks (Class 17), and High Noise (Class 18). The bare-earth (Class 2 - Ground) lidar points underwent a manual QA/QC step to verify the quality of the DEM as well as a peer-based QC review. This included a review of the DEM surface to remove artifacts and ensure topographic quality. After the bare-earth surface is finalized, it is then used to generate all hydro-breaklines through a semi-automated process. All ground (Class 2) lidar data inside of the Lake Pond and Double Line Drain hydro flattening breaklines were then classified to water (Class 9) using TerraScan/LP360 macro functionality. A buffer of 2.3 feet was also used around each hydro-flattened feature to classify these ground (Class 2) points to Ignored ground (Class 10). All Lake Pond Island and Double Line Drain Island features were checked to ensure that the ground (Class 2) points were reclassified to the correct classification after the automated classification was completed. All overlap data was processed through automated functionality provided by TerraScan to classify the overlapping flight line data to approved classes by USGS. The overlap data was classified using standard LAS overlap bit. These classes were created through automated processes only and were not verified for classification accuracy. Due to software limitations within TerraScan, these classes were used to trip the withheld bit within various software packages. These processes were reviewed and accepted by USGS through numerous conference calls and pilot study areas. All data was manually reviewed and any remaining artifacts removed using functionality provided by TerraScan and TerraModeler. Global Mapper was used as a final check of the bare earth dataset. GeoCue was then used to create the deliverable industry-standard LAS files for both the All Point Cloud Data and the Bare Earth. Woolpert Inc. proprietary software and LP360 was used to perform final statistical analysis of the classes in the LAS files, on a per tile level to verify final classification metrics and full LAS header information. 20170308 Point NAD 1983 HARN StatePlane Indiana East FIPS 1301 0.9999666666666667 -85.66666666666667 37.5 328083.3333333333 820208.3333333333 coordinate pair 0.01 0.01 US Feet D North American 1983 HARN GRS 1980 6378137.0 298.257222101 North American Vertical Datum of 1988 0.01 US Feet Explicit elevation coordinate included with horizontal coordinates USGS/NGTOC mailing and physical address

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Rolla MO 65401 USA (573) 308-3587 Unknown Unknown The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and within the limitations of the data for which it was requested and prepared, in general, and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data. It is not appropriate to use the related graphics as data. Woolpert gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from a Woolpert server, and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully upon Woolpert’s computer system, no warranty, expressed or implied, is made regarding the utility of the data on another system, or for general or scientific purposes; nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. 20170731 Woolpert Inc. mailing and physical

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