Surdex Corporation
Unpublished Material
Unknown
Digital Surface Model (DSM) Clinton County, Illinois. 2015
vector data
This Digital Surface Model (DSM) data was produced all or in part from LiDAR information as of 2015. The LiDAR derived DSM covers Clinton County, Illinois and include inland streams, rivers, lakes ponds and tidal features. These data are appropriate for use in local and regional analysis. This data set has a vertical accuracy of 6.24 centimeters RMSEz, horizontal accuracy of 0.6 meters and point spacing of 0.89 meters. Digital Elevation Models (including terrain and surface models) are raster data sets created from whole LiDAR point cloud data sets (LAS files). The LAS files are the standard LiDAR file format which contains the raw point cloud data, these data are normally classified and distinguished between points on the ground, water or elevated features such as buildings, trees, towers, bridges, etc.. These LAS files are processed into elevation models to create gridded rasters. The first returns can be used to map the top reflective surface (Digital Surface Models - DSM), these normally include open terrain areas, as well as the tops of buildings, trees, towers, and other features elevated above the bare earth. The last returns are used to map the bare-earth terrain (Digital Terrain Models - DTM), these are normally produced with irregularly-spaced points rather than the uniform grid structure of a Digital Elevation Model (DEM), Digital Terrain Models will often include breaklines to help define edges of water bodies.
These acquisitions of the LiDAR data and its derivatives were made possible by a grant from the National Geodetic Survey for the National Height Modernization Program. The program is in place to enable states access to accurate, reliable heights using global positioning satellite (GPS) technology in conjunction with traditional leveling, gravity, and modern remote sensing technologies. LiDAR data and its derivatives assist in real-world uses around the state of Illinois such as; highway engineering, flood prediction, agricultural land management, mining subsidence, monitoring archaeological features, locating sinkholes and applied geologic science.
The data do not replace the need for detailed site-specific studies. The information is not appropriate for, and is not to be used as, a geodetic, legal, or engineering base. The information has no legal basis in the definition of boundaries or property lines and is not intended as a substitute for surveyed locations such as can be determined by a registered Public Land Surveyor.
LiDAR
Leica ALS70-HP
1.0
4
0.89
1.18
0.89
1.18
2777
150
40
53.4
198
10
3
1064
1
0.22
2021
20
NAD_1983_2011_Stateplane_Illinois_West_FIPS_1202_Ft_US
National Geodetic Survey (NGS) Geoid12A. The GEOID12A model is intended to transform between NAD 83 (2011/PA11/MA11) and the respective vertical datums for the different regions, including NAVD88, GUVD04, ASVD02, NMVD03, PRVD02 and VIVD09.
0.410 feet RMSEz
0.249 feet RMSEz, 0.488 feet 95% CL
35
0.205 feet RMSEz, 0.401 feet 95% CL hard surface; 0.263 feet RMSEz, 0.515 feet 95% CL short grass
50
0.788 feet 95th Percentile, hard surface, Short Grass, Tall Grass, Trees/Forested, Brush
124
1.2
Swath coverage points were identified by adding 16 to the standard classification values.
Withheld (ignore) points were identified in these files using the standard LAS Withheld bit.
11
6
1
Unclassified
2
Ground
3
Low vegetation
4
Medium vegetation
5
High vegetation
6
All structures except bridges
7
All noise
8
Keypoint
9
Water
10
Proximity to hydro breakline
17
Overlap unclassified
18
Overlap Ground
19
Overlap Low vegetation
20
Overlap Medium vegetation
21
Overlap High vegetation
22
Overlap All structures except bridges
23
Overlap All noise
24
Overlap Keypoint
25
Overlap Water
26
Overlap proximity to hydro breakline
20150101
20150102
20150110
20150113
20150115
20150116
20150117
20150119
20150120
20150315
ground condition
Unknown
-89.71976374
-89.11606470
38.20009327
39.04131154
2425000.00
2595000.00
560000.00
865000.00
LiDAR
Digital Elevation Data
State
Illinois
County
Bond_Clinton_Washington
unknown
unknown
Illinois State Geological Survey
Sheena K Beaverson
Program Manager, Illinois Height Modernization
mailing address
Prairie Research Institute, Univ of IL Urbana-Champaign
615 East Peabody Drive
Champaign
IL
61820
(217) 244-9306
sbeavers@illinois.edu
Illinois Department of Natural Resources, Illinois State Geological Survey, Illinois Department of Transportation and Surdex Corp.
none
Unclassified
none
Microsoft Windows 7.0 Service Pack 1; ESRI ArcCatalog 9.3.0.1770
ILHMP
20150908
Unknown
Illinois LiDAR
raster digital data
All files are inspected to ensure that they conform to the specified file naming conventions.
0
See Surdex LiDAR Accuracy Report
All files load in their correct geographic position and conform to the USGS LiDAR Base Specifications Version 1.0.
A small 11-acre area in tile 24400585 over the southwest portion of Washington County does not contain bare-earth classified points due to smoke that was present over the Marissa Coal Power Plant during the flight acquisition. All other files are inspected to ensure that they conform to the specified file naming conventions, all files load in their correct geographic position, all files conform to the project specifications for file standard and content
2 ft RMSE
The LAS Data must meet a Fundamental Vertical Accuracy (FVA) equal to or less than 0.410 feet (12.5cm ) RMSEz. These vertical accuracies were tested using 124 independent survey check points in the following feature types: Hard Surface (26), Short Grass (24), Tall Grass (26), Trees/Forrested (24) and Brush (24).
0.205 feet RMSEz, 0.401 feet 95% CL
USGS Quality Level 3 or better
Acquisition was completed in late January 2015 using a twin engine Cessna 335 equipped with a Leica ALS70HP. Flight plan parameters were based on 9100 feet AGL, 40 deg FOV, 198,600 pulse rate, 20% sidelap, 0.89 meter NPS. Crews based out of Greenville, Centralia, Pickneyville and Mid-America, IL airports.
All flights have calibration lines flown at beginning and end of flight perpendicular to lines captured during that mission. Base stations were continuously running during missions and placed so flight baseline never exceeds 25 miles.
GPS-IMU captured during flight was processed using Waypoint's Inertial Explorer software. The bare-earth Lidar data was processed to USGS (NGP) Base Lidar Specifications V1.0 using the Terrasolid software suite. LiDAR point was initally processed with macros to locate bare earth ground, buildings and three classes of vegetation but was manually reviewed by experienced technicians in TerraScan or LP360 software for proper point classifciations in LAS tile format. Derivative product formats such as *.DAT, *.DGN, ESRI raster grid and TIN formats were produced using ESRI, Microstation and other software formats.
Hydro features were collected on streams and rivers 100~ feet or wider and on lakes 2~ acres or larger. These lines were hydro flattened into the Lidar data and delivered in ESRI geodatabase file format. Due to the multiple dates (1/10/2015 to 1/15/205) of acquisition over the Carlyle Lake area, Surdex hydro flattened using one consistent elevation.
Unknown
Surdex Corporation
Wade Williams, CP
Project Manager
mailing and physical address
520 Spirit of St. Louis Blvd
Chesterfield
Missouri
63005
636-368-4458
(636) 368-4459
wadew@surdex.com
Raster
coordinate pair
1
1
feet
State Plane Coordinate System 1983
1202
0.9999411764705882
-90.16666666666667
36.6666666
2296583.333333333
0.000000
NAD_1983_2011_Stateplane_Illinois_West_FIPS_1202_Ft_US
Geodetic Reference System 80
6378137.000000
298.257222
North American Vertical Datum of 1988,Geoid2012A
1
feet
Explicit elevation coordinate included with horizontal coordinates
This LiDAR project was contracted by ISGS.
ASPRS
The class field is defined as:
Class 1 (Default/unclassified)
Class 2 (Ground)
Class 3 (Low Vegetation)
Class 4 (Medium Vegetation)
Class 5 (High Vegetation)
Class 6 (Structures/Building)
Class 7 (Noise)
Class 9 (Water)
Class 10 (Breakline Proximity)
Class 17 Overlap (Default/unclassified)
Class 18 Overlap (Ground)
Class 19 Overlap (Low Vegetation)
Class 20 Overlap (Medium Vegetation)
Class 21 Overlap (High Vegetation)
Class 22 Overlap (Structures/Building)
Class 23 Overlap (Noise)
Class 24 Overlap (Keypoint)
Class 25 Overlap (Water)
Class 26 Overlap ( Breakline Proximity)
Illinois State Geological Survey
Sheena K Beaverson
Program Manager, Illinois Height Modernization
mailing address
Prairie Research Institute, Univ of IL Urbana-Champaign
615 East Peabody Drive
Champaign
IL
61820
(217) 244-9306
sbeavers@illinois.edu
Downloadable Data
unknown
LAS
1.2
1.00
DVD
ISO 9660
unknown
20150909
Surdex Corporation
Wade Williams, CP
Project Managert
mailing and physical address
520 Spirit of St. Louis Blvd
Chesterfield
Missouri
63005
636-368-4458
(636) 368-4459
wadew@surdex.com
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
http://www.esri.com/metadata/esriprof80.html
ESRI Metadata Profile
These acquisitions of the LiDAR data and its derivatives were made possible by a grant from the National Geodetic Survey for the National Height Modernization Program. The program is in place to enable states access to accurate, reliable heights using global positioning satellite (GPS) technology in conjunction with traditional leveling, gravity, and modern remote sensing technologies. LiDAR data and its derivatives assist in real-world uses around the state of Illinois such as; highway engineering, flood prediction, agricultural land management, mining subsidence, monitoring archaeological features, locating sinkholes and applied geologic science.
The data do not replace the need for detailed site-specific studies. The information is not appropriate for, and is not to be used as, a geodetic, legal, or engineering base. The information has no legal basis in the definition of boundaries or property lines and is not intended as a substitute for surveyed locations such as can be determined by a registered Public Land Surveyor.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This Digital Surface Model (DSM) data was produced all or in part from LiDAR information as of 2015. The LiDAR derived DSM covers Clinton County, Illinois and include inland streams, rivers, lakes ponds and tidal features. These data are appropriate for use in local and regional analysis. This data set has a vertical accuracy of 6.24 centimeters RMSEz, horizontal accuracy of 0.6 meters and point spacing of 0.89 meters. Digital Elevation Models (including terrain and surface models) are raster data sets created from whole LiDAR point cloud data sets (LAS files). The LAS files are the standard LiDAR file format which contains the raw point cloud data, these data are normally classified and distinguished between points on the ground, water or elevated features such as buildings, trees, towers, bridges, etc.. These LAS files are processed into elevation models to create gridded rasters. The first returns can be used to map the top reflective surface (Digital Surface Models - DSM), these normally include open terrain areas, as well as the tops of buildings, trees, towers, and other features elevated above the bare earth. The last returns are used to map the bare-earth terrain (Digital Terrain Models - DTM), these are normally produced with irregularly-spaced points rather than the uniform grid structure of a Digital Elevation Model (DEM), Digital Terrain Models will often include breaklines to help define edges of water bodies.</SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
Illinois Department of Natural Resources, Illinois State Geological Survey, Illinois Department of Transportation and Surdex Corp.
IL_Clinton_DSM_2015
2016-03-15T00:00:00
2016-03-15T00:00:00
Illinois State Geological Survey
615 E Peabody Dr.
Champaign
IL
61821
info@isgs.edu
US
217-333-4747
Monday thru Friday 8 am to 5 pm
Illinois State Geological Survey
Recommended Publishing Citation:
Illinois Height Modernization Program, Illinois State Geological Survey, and Illinois Department of Transportation, 2002–2016, Illinois Height Modernization Program (ILHMP): LiDAR data: Illinois State Geological Survey http://clearinghouse.isgs.illinois.edu/ (accessed June 8, 2016)
Digital Elevation Data
Light Detection and Ranging
LiDAR
Bare Earth
Point Cloud
Digital Elevation Model
DEM
Elevation
Surface Model
Digital Surface Model
DSM
Hillshade
Clinton County
<DIV STYLE="text-align:Left;"><DIV><DIV><DIV STYLE="font-size:12pt"><P><SPAN><SPAN>ISGS information is the property of and copyrighted by the Board of Trustees of the University of Illinois with all rights reserved. University copyright policy is stated in the General Rules Concerning University Organization and Procedure, Article III, Section 4. A link is provided in the Cross References section. Individuals or entities may make fair use of copyrighted ISGS material, such as reproducing a single figure or table, or using a brief text quotation, without obtaining formal permission, but in all cases the Illinois State Geological Survey must be credited as the source of the material. To reproduce ISGS information beyond the fair use standard, permission must be obtained from the ISGS Information Office, 615 East Peabody Drive, Champaign, Illinois 61820, 217-333-4747, isgs@isgs.illinois.edu. License fees and a license agreement may be required, depending on the proposed usage. Any use of these data is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice. Links to these are provided in the Cross References section. Map information is to be used at a scientifically and cartographically appropriate scale, that is, at a scale no greater than indicated on the map or as described in the documentation of the map or map data. Map information is not appropriate for, and is not to be used as, a geodetic, legal, or engineering base. Map information has no legal basis in the definition of boundaries or property lines and is not intended as a substitute for surveyed locations such as can be determined by a registered Public Land Surveyor. The data do not replace the need for detailed site-specific studies.</SPAN></SPAN></P><P><SPAN /></P></DIV></DIV></DIV></DIV>
-89.72
-89.12
38.75
38.41
1
dates of collection
2015-01-01T00:00:00
2015-03-15T00:00:00
Access Constraints ISGS information must be obtained directly from the ISGS or from an authorized distributor. Be aware that ISGS information obtained from an unauthorized third party may have been altered subsequent to original distribution, or may no longer be current. Any access to these data, Web sites, computer systems, electronic services, and electronic networks is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice. Links to these are provided in the Cross References section.
Illinois State Geological Survey
615 E Peabody Dr.
Champaign
IL
61821
info@isgs.edu
US
217-333-4747
Monday thru Friday 8 am to 5 pm
Illinois State Geological Survey
150000000
5000
1.0
FGDC
20160608
11191200