2018 ILHMP Lidar: Boone and Winnebago Counties, IL
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:70718 | Updated: October 17, 2023 | Published / External
Summary
Short Citation
OCM Partners, 2024: 2018 ILHMP Lidar: Boone and Winnebago Counties, IL, https://www.fisheries.noaa.gov/inport/item/70718.
Full Citation Examples
LIDAR-derived binary (.las) files ASPRS ver 1.4 format containing classified points of all returns. We have 11 classifications: Unclassified, Ground, Low Veg (0.5 - 5 ft), Medium Veg (5 - 20 ft), High Veg (> 20 ft), Buildings, Low Noise, Water, Ignore Ground, Bridge Decks and High Noise. Model key points are bit-flagged and created from ground (class = 2) points using a two foot horizontal and a 0.2 foot vertical variance. The files are delivered in section formatted tiles. These files adhere to the National Enhanced Elevation Assessment (NEEA) Quality Level 2 (QL2) standards. The contractual aggregate nominal pulse spacing (ANPS) is less than or equal to 0.5m. The contractual aggregate nominal point density (ANPD) is 4.0 points or greater per square meter.
Boone County is approximately 303 square miles.
Winnebago County is approximately 554.5 square miles.
Distribution Information
-
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.
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LAS/LAZ - LASer
Bulk download of data files in LAZ format, geographic coordinates, orthometric heights. Note that the vertical datum (hence elevations) of the files here are different than described in this document. They will be in an orthometric datum.
None
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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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
-89.4° W,
-88.699328° E,
42.499958° N,
42.147692° S
2018-04-24 - 2018-04-25
Dates of collection for Boone County
2018-04-28
Date of collection for Boone County
2018-04-22 - 2018-04-23
Dates of collection for Winnebago County
Item Identification
Title: | 2018 ILHMP Lidar: Boone and Winnebago Counties, IL |
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Short Name: | il2018_boone_winne_m9887_metadata |
Status: | Completed |
Creation Date: | 2018 |
Publication Date: | 2018 |
Abstract: |
LIDAR-derived binary (.las) files ASPRS ver 1.4 format containing classified points of all returns. We have 11 classifications: Unclassified, Ground, Low Veg (0.5 - 5 ft), Medium Veg (5 - 20 ft), High Veg (> 20 ft), Buildings, Low Noise, Water, Ignore Ground, Bridge Decks and High Noise. Model key points are bit-flagged and created from ground (class = 2) points using a two foot horizontal and a 0.2 foot vertical variance. The files are delivered in section formatted tiles. These files adhere to the National Enhanced Elevation Assessment (NEEA) Quality Level 2 (QL2) standards. The contractual aggregate nominal pulse spacing (ANPS) is less than or equal to 0.5m. The contractual aggregate nominal point density (ANPD) is 4.0 points or greater per square meter. Boone County is approximately 303 square miles. Winnebago County is approximately 554.5 square miles. |
Purpose: |
U18049 - Acquisition and processing of high fidelity Light Detection and Ranging (LiDAR) data for Boone and Winnebago counties commencing in the Spring of 2018. Services include LiDAR acquisition; ground control survey; LiDAR post-processing; LiDAR classification; hydro-flattening; QA/QC, and; development of derivative deliverable products (including metadata and reporting). |
Supplemental Information: |
The following are the USGS lidar fields in JSON: {
"ldrinfo" : {
"ldrspec" : "USGS NGP Base Specification v1.2", "ldrsens" : "Optech Galaxy Airborne Laser Terrain Mappers (ALTM) SN5060385", "ldrmaxnr" : "8", "ldrnps" : "0.5", "ldrdens" : "4", "ldranps" : "0.5", "ldradens" : "4", "ldrfltht" : "1650", "ldrfltsp" : "170", "ldrscana" : "30", "ldrscanr" : "88", "ldrpulsr" : "400", "ldrpulsd" : "3.5", "ldrpulsw" : "1.05", "ldrwavel" : "1064", "ldrmpia" : "1", "ldrbmdiv" : "0.25", "ldrswatw" : "2901", "ldrswato" : "20", "ldrcrs" : "NAD_1983_2011_StatePlane_Illinois_East_FIPS_1201_Ft_US", "ldrgeoid" : "National Geodetic Survey (NGS) Geoid12B" }, "ldraccur" : {
"ldrchacc" : "0.17", "rawnva" : "0.047", "rawnvan" : "25", "clsnva" : "0.049", "clsnvan" : "15", "clsvva" : "0.059", "clsvvan" : "15" }, "lasinfo" : {
"lasver" : "1.4", "lasprf" : "6", "laswheld" : "Withheld (ignore) points were identified in these files using the standard LAS Withheld bit.", "lasolap" : "Swath "overage" points were identified in these files by a separate bit flag.", "lasintr" : "12-bit", "lasclass" : {
"clascode" : "1", "clasitem" : "Undetermined/Unclassifed" }, "lasclass" : {
"clascode" : "2", "clasitem" : "Ground" }, "lasclass" : {
"clascode" : "3", "clasitem" : "Low Veg" }, "lasclass" : {
"clascode" : "4", "clasitem" : "Medium Veg" }, "lasclass" : {
"clascode" : "5", "clasitem" : "High Veg" }, "lasclass" : {
"clascode" : "6", "clasitem" : "Building" }, "lasclass" : {
"clascode" : "7", "clasitem" : "Low point (noise)" }, "lasclass" : {
"clascode" : "9", "clasitem" : "Water" }, "lasclass" : {
"clascode" : "10", "clasitem" : "Ignore ground (near a breakline)" }, "lasclass" : {
"clascode" : "17", "clasitem" : "Bridge Decks" }, "lasclass" : {
"clascode" : "18", "clasitem" : "High Noise" } }} |
Keywords
Theme Keywords
Thesaurus | Keyword |
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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 |
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City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
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Data Set Type: | Elevation |
Maintenance Frequency: | Unknown |
Data Presentation Form: | Model (digital) |
Entity Attribute Detail Citation: |
ASPRS ver 1.4 format:1 = Unclassified2 = Ground3 = Low Veg4 = Medium Veg5 = High Veg6 = Building7 = Low Noise9 = Water10 = Ignore Ground17 = Bridge18 = High NoiseModel key points are bit-flagged and created from ground (class = 2) points using a 2 foot horizontal and a 0.2 foot vertical variance. |
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: | Merrick & Co, USGS |
Support Roles
Data Steward
Date Effective From: | 2023 |
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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
Date Effective From: | 2023 |
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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 |
Metadata Contact
Date Effective From: | 2023 |
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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
Date Effective From: | 2023 |
---|---|
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 |
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Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -89.4 | |
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E° Bound: | -88.699328 | |
N° Bound: | 42.499958 | |
S° Bound: | 42.147692 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2018-04-24 |
End: | 2018-04-25 |
Description: |
Dates of collection for Boone County |
Extent Group 1 / Time Frame 2
Time Frame Type: | Discrete |
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Start: | 2018-04-28 |
Description: |
Date of collection for Boone County |
Extent Group 1 / Time Frame 3
Time Frame Type: | Range |
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Start: | 2018-04-22 |
End: | 2018-04-23 |
Description: |
Dates of collection for Winnebago County |
Spatial Information
Spatial Representation
Representations Used
Grid: | No |
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Vector: | Yes |
Text / Table: | No |
TIN: | No |
Stereo Model: | No |
Video: | No |
Reference Systems
Reference System 1
Coordinate Reference System |
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Access Information
Security Class: | Unclassified |
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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
Start Date: | 2023-08-31 |
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End Date: | Present |
Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9887/details/9887 |
Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2023 - 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. |
File Type (Deprecated): | Zip |
Compression: | Zip |
Distribution 2
Start Date: | 2023-08-31 |
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End Date: | Present |
Download URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9887/index.html |
Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2023 - Present) |
File Name: | Bulk Download |
Description: |
Bulk download of data files in LAZ format, geographic coordinates, orthometric heights. Note that the vertical datum (hence elevations) of the files here are different than described in this document. They will be in an orthometric datum. |
File Type (Deprecated): | LAZ |
Distribution Format: | LAS/LAZ - LASer |
URLs
URL 1
URL: | https://coast.noaa.gov/dataviewer/ |
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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
URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9887/supplemental/il2018_boone_winnebago_m9887.kmz |
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Name: | Browse graphic |
URL Type: |
Browse Graphic
|
File Resource Format: | KML |
Description: |
This graphic displays the footprint for this lidar data set. |
URL 3
URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/entwine/geoid18/9887/ept.json |
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Name: | 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 4
URL: | https://coast.noaa.gov/lidar/viewer/v/noaapotree.html?r=https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/entwine/geoid18/9887/ept.json |
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Name: | Potree 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 5
URL: | https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/metadata/IL_BooneWinnebago_2018_C19/IL_Winnebago_2018/reports/2018_ISGS_Boone_Winnebago_County_Lidar_mapping_report.pdf |
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Name: | Lidar Report |
URL Type: |
Online Resource
|
File Resource Format: | |
Description: |
Link to the Merrick Acquisition and Processing Report. |
Technical Environment
Description: |
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095 |
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Data Quality
Horizontal Positional Accuracy: |
This data set was produced to meet ASPRS Positional Accuracy Standards for Digital Geospatial Data (2014) for a 17 cm RMSEx / RMSEy Horizontal Accuracy Class which equates to Positional Horizontal Accuracy = +/- 40 cm at a 95% confidence level. |
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Vertical Positional Accuracy: |
This data set was tested to meet ASPRS Positional Accuracy Standard for Digital Geospatial Data (2014) for a 10-cm RMSEz Vertical Accuracy Class. Boone County Actual NVA accuracy was found to be RMSEz = 2.411 cm, equating to +/- 4.725 cm at the 95% confidence level. Actual VVA accuracy was found to be +/- 5.882 cm at the 95th percentile. Winnebago County Actual NVA accuracy was found to be RMSEz = 2.674 cm, equating to +/- 5.241 cm at the 95% confidence level. Actual VVA accuracy was found to be +/- 7.616 cm at the 95th percentile. |
Completeness Report: |
The dataset was captured, attributed, and reviewed to ensure completeness and accuracy of at least 95%. |
Conceptual Consistency: |
The dataset was captured, attributed, and reviewed to ensure completeness and accuracy of at least 95%. |
Data Management
Have Resources for Management of these Data Been Identified?: | Yes |
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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-CO |
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?: |
Data is backed up to tape and to cloud storage. |
Lineage
Lineage Statement: |
The NOAA Office for Coastal Management (OCM) downloaded this data from the USGS rockyweb site. OCM processed the data to make it available for custom download from the NOAA Digital Coast Data Access Viewer (DAV) and for bulk download from AWS S3. |
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Sources
USGS LAZ Download - Boone County
Contact Role Type: | Publisher |
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Contact Type: | Organization |
Contact Name: | USGS |
Citation URL: | https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/USGS_LPC_IL_Boone_2018/laz/ |
Citation URL Name: | USGS LAZ download |
USGS LAZ Download - Winnebago County
Contact Role Type: | Publisher |
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Contact Type: | Organization |
Contact Name: | USGS |
Citation URL: | https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/USGS_LPC_IL_Winnebago_2018/laz/ |
Citation URL Name: | USGS LAZ download |
Process Steps
Process Step 1
Description: |
LIDAR data was collected using the Optech Galaxy sensor. The raw data was verified in MARS software for complete coverage of the project area, and boresighted to align the flightlines. Raw data files were parsed into manageable client-specific tiles. These tiles were then processed through automated filtering that separates the data into different classification groups: unclassified points, ground points, low veg, medium veg, high veg, buildings, low noise, water, ignored ground, bridge decks and high noise. The data was next taken into MARS to reclassify the erroneous points that may remain in the LIDAR point cloud after auto filter. Four points or greater per square meter (QL2) ASPRS ver 1.4 format. |
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Process Date/Time: | 2018-08-17 00:00:00 |
Process Step 2
Description: |
The NOAA Office for Coastal Management (OCM) downloaded 5977 (Boone - 2112 files, Winnebago - 3865 files) laz point data files from these USGS sites: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/USGS_LPC_IL_Boone_2018/laz/ https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/USGS_LPC_IL_Winnebago_2018/laz/ The data were in IL State Plane East (Boone County) and IL State Plane West (Winnebago County) (NAD83 (2011)), US survey feet coordinates and NAVD88 (Geoid12B) elevations in feet. The data were classified as: 1 - Unclassified, 2 - Ground, 3 - Low Vegetation (0.5 - 5 ft), 4 - Medium Vegetation (5 - 20 ft), 5 - High Vegetation (>20 ft), 6 - Buildings, 7 - Low Noise, 9 - Water, 10 - Ignored Ground, 17 - Bridge Deck, 18 - High Noise. OCM processed all classifications of points to the Digital Coast Data Access Viewer (DAV). Classes available on the DAV are: 1, 2, 3, 4, 5, 6, 7, 9, 10, 17, 18. OCM performed the following processing on the data for Digital Coast storage and provisioning purposes: 1. Internal OCM scripts were run to check the number of points by classification and by flight ID and the gps, elevation, and intensity ranges. 2. Internal OCM scripts were run on the laz files to: a. Convert from orthometric (NAVD88) elevations to NAD83 (2011) ellipsoid elevations using the Geoid12B model b. Convert from IL State Plane East and West (NAD83 (2011)), US survey feet coordinates to geographic coordinates c. Convert the elevations from feet to meters. d. Assign the geokeys, sort the data by gps time and zip the data to database and to AWS S3 |
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Process Date/Time: | 2023-08-31 00:00:00 |
Process Contact: | Office for Coastal Management (OCM) |
Catalog Details
Catalog Item ID: | 70718 |
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GUID: | gov.noaa.nmfs.inport:70718 |
Metadata Record Created By: | Rebecca Mataosky |
Metadata Record Created: | 2023-08-31 18:04+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2023-10-17 16:12+0000 |
Metadata Record Published: | 2023-08-31 |
Owner Org: | OCMP |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2023-08-31 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2024-08-31 |