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OCM Partners Metadata Library > Lidar - partner (no harvest) >

2017 ISGS Lidar: Hancock County, IL

Data Set (DS)  |  OCM Partners (OCMP)
GUID: gov.noaa.nmfs.inport:72529  |  Updated: July 31, 2024  |  Published / External 
Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
URLs
Tech Environment
Data Quality
Data Management
Lineage
Catalog Details

Summary

Short Citation
OCM Partners, 2024: 2017 ISGS Lidar: Hancock County, IL, https://www.fisheries.noaa.gov/inport/item/72529.
Full Citation Examples

Abstract

This project involved fixed wing aerial LIDAR data collected at a contracted point spacing of 0.70 meters for the Illinois County of Hancock totaling approximately 863 square miles. This classified LAS Data was created from the final controled swath data.

This metadata record supports the data entry in the NOAA Digital Coast Data Access Viewer (DAV). For this data set, the DAV is leveraging the Entwine Point Tiles (EPT) hosted by USGS on Amazon Web Services.

Distribution Information

  • Customized Download
    Not Applicable

    Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base. Change to an orthometric vertical datum is one of the many options.

  • Bulk Download
    LAS/LAZ - LASer

    Bulk download of data files in LAZ format, IL State Plane West (NAD83 2011), US feet coordinates and NAVD88 (GEOID12B) elevations in feet.

Access Constraints:

None

Use Constraints:

Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations.

Controlled Theme Keywords

elevation, TERRAIN ELEVATION

Child Items

No Child Items for this record.

Contact Information

Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov

Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov

Extents

Geographic Area 1

-91.5130261° W, -90.8985331° E, 40.6407242° N, 40.1915909° S

Time Frame 1
2017-03-15
Time Frame 2
2017-03-16
Time Frame 3
2017-03-20
Time Frame 4
2017-04-12
Time Frame 5
2017-06-07
Time Frame 6
2017-06-08

Item Identification

Title: 2017 ISGS Lidar: Hancock County, IL
Short Name: il2017_hancock_m10114_metadata
Status: Completed
Creation Date: 2017
Abstract:

This project involved fixed wing aerial LIDAR data collected at a contracted point spacing of 0.70 meters for the Illinois County of Hancock totaling approximately 863 square miles. This classified LAS Data was created from the final controled swath data.

This metadata record supports the data entry in the NOAA Digital Coast Data Access Viewer (DAV). For this data set, the DAV is leveraging the Entwine Point Tiles (EPT) hosted by USGS on Amazon Web Services.
Purpose:

To acquire detailed surface elevation data for the Illinois Height Modernization Program (ILHMP) which is managed by the Illinois State Geological Survey (ISGS).
Supplemental Information:

LiDAR

The following are the USGS lidar fields in JSON:

{

"ldrinfo" : {

"ldrsens" : "Optech Galaxy",

"ldrspec" : "1.2",

"ldrmaxnr" : "4",

"ldrnps" : "0.67",

"ldrdens" : "2.20",

"ldranps" : "0.67",

"ldradens" : "2.20",

"ldrfltht" : "1847",

"ldrfltsp" : "150",

"ldrscana" : "45",

"ldrscanr" : "49",

"ldrpulsr" : "250",

"ldrpulsd" : "10",

"ldrpulsw" : "3",

"ldrwavel" : "1064",

"ldrmpia" : "1",

"ldrbmdiv" : "0.22",

"ldrswatw" : "1535",

"ldrswato" : "20",

"ldrcrs" : "NAD_1983_2011_Stateplane_Illinois_West_FIPS_1202_Ft_US",

"ldrgeoid" : "National Geodetic Survey (NGS) Geoid12B. The GEOID12B 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."

},

"ldraccur" : {

"ldrchacc" : "0.328 feet RMSEz",

"rawnva" : "0.104 feet RMSEz, 0.204 feet 95% CL bare earth, short grass",

"rawnvan" : "36",

"clsnva" : "0.097 feet RMSEz, 0.191 feet 95% CL bare earth, short grass",

"clsnvan" : "36",

"clsvva" : "0.427 feet 95th Percentile, Tall Grass, Trees/Forested, Brush",

"clsvvan" : "23"

},

"lasinfo" : {

"lasver" : "1.4",

"lasolap" : "17",

"laswheld" : "11",

"lasintr" : "11",

"lasprf" : "6",

"lasclass" : {

"clascode" : "1",

"clasitem" : "Unclassified"

},

"lasclass" : {

"clascode" : "2",

"clasitem" : "Ground"

},

"lasclass" : {

"clascode" : "3",

"clasitem" : "Low vegetation"

},

"lasclass" : {

"clascode" : "4",

"clasitem" : "Medium vegetation"

},

"lasclass" : {

"clascode" : "5",

"clasitem" : "High vegetation"

},

"lasclass" : {

"clascode" : "6",

"clasitem" : "All structures except bridges"

},

"lasclass" : {

"clascode" : "7",

"clasitem" : "Low noise"

},

"lasclass" : {

"clascode" : "9",

"clasitem" : "Water"

},

"lasclass" : {

"clascode" : "10",

"clasitem" : "Proximity to breaklines"

},

"lasclass" : {

"clascode" : "17",

"clasitem" : "Bridge decks"

},

"lasclass" : {

"clascode" : "18",

"clasitem" : "High noise"

}

}}

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
ISO 19115 Topic Category
elevation

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ILLINOIS
Global Change Master Directory (GCMD) Location Keywords
VERTICAL LOCATION > LAND SURFACE

Instrument Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Instrument Keywords
LIDAR > Light Detection and Ranging

Platform Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Platform Keywords
Airplane > Airplane

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: Elevation
Maintenance Frequency: Unknown
Data Presentation Form: Model (digital)
Entity Attribute Detail Citation:

ASPRS
Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners.
Data Set Credit: Created by Surdex Corporation through Contract with the University of Illinois, ISGS

Support Roles

Data Steward

CC ID: 1332395
Date Effective From: 2024
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 1332394
Date Effective From: 2024
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 1332418
Date Effective From: 2018
Date Effective To:
Contact (Organization): U.S. Geological Survey
Address: 12201 Sunrise Valley Drive
Reston, VA 20191
USA
URL: USGS Home

Metadata Contact

CC ID: 1332396
Date Effective From: 2024
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 1332397
Date Effective From: 2024
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1332405
W° Bound: -91.5130261
E° Bound: -90.8985331
N° Bound: 40.6407242
S° Bound: 40.1915909

Extent Group 1 / Time Frame 1

CC ID: 1332399
Time Frame Type: Discrete
Start: 2017-03-15

Extent Group 1 / Time Frame 2

CC ID: 1332400
Time Frame Type: Discrete
Start: 2017-03-16

Extent Group 1 / Time Frame 3

CC ID: 1332401
Time Frame Type: Discrete
Start: 2017-03-20

Extent Group 1 / Time Frame 4

CC ID: 1332402
Time Frame Type: Discrete
Start: 2017-04-12

Extent Group 1 / Time Frame 5

CC ID: 1332403
Time Frame Type: Discrete
Start: 2017-06-07

Extent Group 1 / Time Frame 6

CC ID: 1332404
Time Frame Type: Discrete
Start: 2017-06-08

Spatial Information

Spatial Representation

Representations Used

Grid: No
Vector: Yes
Text / Table: No
TIN: No
Stereo Model: No
Video: No

Vector Representation 1

CC ID: 1332389
Point Object Present?: Yes
Point Object Count: 7046242882

Reference Systems

Reference System 1

CC ID: 1332419

Coordinate Reference System
CRS Type: Projected
EPSG Code: EPSG:3857
EPSG Name: WGS 84 / Pseudo-Mercator
▾ See Full Coordinate Reference System Information

Reference System 2

CC ID: 1343096

Coordinate Reference System
CRS Type: Vertical
EPSG Code: EPSG:5703
EPSG Name: NAVD88 height
▾ See Full Coordinate Reference System Information

Access Information

Security Class: Unclassified
Data Access Procedure:

Data is available online for bulk and custom downloads.
Data Access Constraints:

None
Data Use Constraints:

Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations.

Distribution Information

Distribution 1

CC ID: 1332406
Start Date: 2024-04-29
End Date: Present
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=10114/details/10114
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2024 - Present)
File Name: Customized Download
Description:

Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base. Change to an orthometric vertical datum is one of the many options.
Distribution Format: Not Applicable
Compression: Zip

Distribution 2

CC ID: 1332407
Start Date: 2018
End Date: Present
Download URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/IL_HancockCounty_2017_C18/IL_HancockCo_2017/LAZ
Distributor: U.S. Geological Survey (2018 - Present)
File Name: Bulk Download
Description:

Bulk download of data files in LAZ format, IL State Plane West (NAD83 2011), US feet coordinates and NAVD88 (GEOID12B) elevations in feet.
Distribution Format: LAS/LAZ - LASer
Compression: LAZ

URLs

URL 1

CC ID: 1332392
URL: https://coast.noaa.gov/dataviewer/
Name: NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV)
URL Type:
Online Resource
File Resource Format: HTML
Description:

The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer.

URL 2

CC ID: 1332421
URL: https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_IL_HancockCo_2017_LAS_2018/ept.json
Name: USGS Entwine Point Tile (EPT)
URL Type:
Online Resource
File Resource Format: json
Description:

Entwine Point Tile (EPT) is a simple and flexible octree-based storage format for point cloud data. The data is organized in such a way that the data can be reasonably streamed over the internet, pulling only the points you need. EPT files can be queried to return a subset of the points that give you a representation of the area. As you zoom further in, you are requesting higher and higher densities. A dataset in EPT will contain a lot of files, however, the ept.json file describes all the rest. The EPT file can be used in Potree and QGIS to view the point cloud.

URL 3

CC ID: 1332422
URL: https://usgs.entwine.io/data/view.html?r=%22https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_IL_HancockCo_2017_LAS_2018%22
Name: USGS 3D View
URL Type:
Online Resource
Description:

Link to view the point cloud, using the Entwine Point Tile (EPT) format, in the 3D Potree viewer.

URL 4

CC ID: 1332423
URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/metadata/IL_HancockCounty_2017_C18/IL_HancockCo_2017/
Name: USGS Additional Info
URL Type:
Online Resource
Description:

Link to the reports, breaklines, metadata, spatial metadata, and shapefiles.

Technical Environment

Description:

Microsoft Windows 7.0 Service Pack 1; ESRI ArcCatalog 9.3.0.1770

Data Quality

Horizontal Positional Accuracy:

2 ft RMSE
Vertical Positional Accuracy:

The LAS Data must meet a Non-Vegetated Vertical Accuracy (NVA) equal to or less than 0.328 feet (10cm ) RMSEz and Vegetated Vertical Accuracy (VVA) equal to or less than 29.4cm at the 95th percentile. These vertical accuracies were tested using 36 independent survey check points.

NVA = 0.104 ft (3.1 cm) RMSE

VVA = 10.98 cm at 95th Percentile
Completeness Report:

All 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
Conceptual Consistency:

This total point cloud classified LAS Data was created from the final controled swath data.

Data Management

Have Resources for Management of these Data Been Identified?: Yes
Approximate Percentage of Budget for these Data Devoted to Data Management: Unknown
Do these Data Comply with the Data Access Directive?: Yes
Actual or Planned Long-Term Data Archive Location: NCEI-NC
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

Data is backed up to cloud storage.

Lineage

Lineage Statement:

The NOAA Office for Coastal Management (OCM) ingested references to the USGS Entwine Point Tile (EPT) file hosted on Amazon Web Services (AWS) into the Digital Coast Data Access Viewer (DAV). The DAV accesses the point cloud as it resides on AWS under the usgs-lidar-public-container.

Sources

USGS AWS Entwine Point Tile (EPT)

CC ID: 1332424
Contact Role Type: Publisher
Contact Type: Organization
Contact Name: USGS
Citation URL: https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_IL_HancockCo_2017_LAS_2018/ept.json
Citation URL Name: Entwine Point Tile file for USGS_LPC_IL_HancockCo_2017_LAS_2018

Process Steps

Process Step 1

CC ID: 1332387
Description:

Acquisition was completed in March, April and June 2017 using a single engine Cessna 206 equipped with an Optech Galaxy. Flight plan parameters were based on 6060 feet AGL, 45 deg FOV, 250,400 pulse rate, 20% sidelap, 0.67 meter NPS. Crews based out of Keokuk, Iowa Airport.

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 30 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 V1.2 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.

Process Step 2

CC ID: 1332425
Description:

Original point clouds in LAS/LAZ format were restructured as Entwine Point Tiles and stored on Amazon Web Services. The data were re-projected horizontally to WGS84 web mercator (EPSG 3857) and the vertical units were converted to meters (NAVD88 GEOID12B).
Process Contact: U.S. Geological Survey

Process Step 3

CC ID: 1332426
Description:

The NOAA Office for Coastal Management (OCM) created references to the Entwine Point Tile (EPT) file that was ingested into the NOAA Digital Coast Data Access Viewer (DAV). No changes were made to the data. The DAV will access the point cloud as it resides on Amazon Web Services (AWS) under the usgs-lidar-public container.

This is the AWS URL being accessed:

https://s3-us-west-2.amazonaws.com/usgs-lidar-public/USGS_LPC_IL_HancockCo_2017_LAS_2018/ept.json
Process Date/Time: 2024-04-26 00:00:00
Process Contact: Office for Coastal Management (OCM)

Catalog Details

Catalog Item ID: 72529
GUID: gov.noaa.nmfs.inport:72529
Metadata Record Created By: Rebecca Mataosky
Metadata Record Created: 2024-04-29 15:33+0000
Metadata Record Last Modified By: Rebecca Mataosky
Metadata Record Last Modified: 2024-07-31 17:37+0000
Metadata Record Published: 2024-04-29
Owner Org: OCMP
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2024-04-29
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2025-04-29