2019 USGS QL2 Lidar: Ashland, Iron, and Florence Counties, WI
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:71674 | Updated: August 20, 2024 | Published / External
Summary
Short Citation
OCM Partners, 2024: 2019 USGS QL2 Lidar: Ashland, Iron, and Florence Counties, WI, https://www.fisheries.noaa.gov/inport/item/71674.
Full Citation Examples
Product: These lidar data are processed Classified LAS 1.4 files, formatted to 2500 ft x 2500 ft tiles.
Geographic Extent: 5 counties in Wisconsin, covering approximately 325 total square miles.
Dataset Description: The WI AshlandIronFlorence project called for the planning, acquisition, processing, and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.71 meters. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base LiDAR Specification, Version 1.3.
Ground Conditions: LiDAR was collected in fall 2019 and spring 2020, 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, Quantum Spatial, Inc. utilized a total of 59 ground control points that were used to calibrate the LiDAR to known ground locations established throughout the project area (19 in Florence, 20 in Iron, and 20 in Ashland County).
Distribution Information
-
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.
-
LAS/LAZ - LASer
Bulk download of data files in LAZ format, with a vertical datum of NAVD88 (GEOID12B) and units in feet. This url links to the USGS copy of the files, from which the Entwine Point Tile files originated. These have not been reviewed by OCM and the link is provided here for convenience.
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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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
COASTAL ELEVATION, 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
-88.5513523488° W,
-88.0480301651° E,
45.996604196° N,
45.7039597157° S
Florence County, WI
2019-10-30 - 2020-05-05
Item Identification
Title: | 2019 USGS QL2 Lidar: Ashland, Iron, and Florence Counties, WI |
---|---|
Short Name: | 2019 ql2 ashland iron florence m9999 |
Status: | Completed |
Publication Date: | 2021-07-21 |
Abstract: |
Product: These lidar data are processed Classified LAS 1.4 files, formatted to 2500 ft x 2500 ft tiles. Geographic Extent: 5 counties in Wisconsin, covering approximately 325 total square miles. Dataset Description: The WI AshlandIronFlorence project called for the planning, acquisition, processing, and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.71 meters. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base LiDAR Specification, Version 1.3. Ground Conditions: LiDAR was collected in fall 2019 and spring 2020, 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, Quantum Spatial, Inc. utilized a total of 59 ground control points that were used to calibrate the LiDAR to known ground locations established throughout the project area (19 in Florence, 20 in Iron, and 20 in Ashland County). |
Purpose: |
To acquire detailed surface elevation data for use in conservation planning, design, research, floodplain mapping, dam safety assessments and elevation modeling, etc. Classified LAS files are used to show the manually reviewed bare earth surface. This allows the user to create intensity images, breaklines and raster DEMs. The purpose of these LiDAR data was to produce high accuracy 3D hydro-flattened digital elevation models (DEMs) 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. |
Supplemental Information: |
Contract No. G16PC00016, Task Order No. 140G0219F0307; CONTRACTOR: Quantum Spatial, Inc. The following are the USGS lidar fields in JSON: {
"ldrinfo" : {
"ldrspec" : "USGS-NGP Base Specification v1.3", "ldrsens" : "Riegl VQ1560i", "ldrmaxnr" : "unlimited", "ldrnps" : "0.71", "ldrdens" : "2.0", "ldranps" : "0.31", "ldradens" : "10.41", "ldrfltht" : "1329", "ldrfltsp" : "160", "ldrscana" : "29", "ldrscanr" : "334", "ldrpulsr" : "2000", "ldrpulsd" : "3", "ldrpulsw" : "0.24", "ldrwavel" : "1064", "ldrmpia" : "1", "ldrbmdiv" : "0.18", "ldrswatw" : "1473.0", "ldrswato" : "20", "ldrgeoid" : "Geoid 12b", "ldrcrs" : "NAD 1983 2011 WISCRS Florence Feet, Foot US" }, "ldrinfo" : {
"ldrspec" : "USGS-NGP Base Specification v1.3", "ldrsens" : "Riegl VQ1560i", "ldrmaxnr" : "unlimited", "ldrnps" : "0.71", "ldrdens" : "2.0", "ldranps" : "0.63", "ldradens" : "2.52", "ldrfltht" : "2300", "ldrfltsp" : "140", "ldrscana" : "29", "ldrscanr" : "320", "ldrpulsr" : "700", "ldrpulsd" : "3", "ldrpulsw" : "0.41", "ldrwavel" : "1064", "ldrmpia" : "1", "ldrbmdiv" : "0.18", "ldrswatw" : "2550.0", "ldrswato" : "20", "ldrgeoid" : "Geoid 12b", "ldrcrs" : "NAD 1983 2011 WISCRS Florence Feet, Foot US" }, "ldraccur" : {
"ldrchacc" : "0", "rawnva" : "0", "rawnvan" : "0" }, "lasinfo" : {
"lasver" : "1.4", "lasprf" : "6", "laswheld" : "Withheld (ignore) points were identified in these files using the standard LAS Withheld bit.", "lasolap" : "Any overage point deemed geometrically reliable will be used within the normal classification schema. Overage points are not specifically flagged with any special bit value.", "lasintr" : "16", "lasclass" : {
"clascode" : "1", "clasitem" : "Processed, but Unclassified" }, "lasclass" : {
"clascode" : "2", "clasitem" : "Bare-Earth Ground" }, "lasclass" : {
"clascode" : "3", "clasitem" : "Low Vegetation" }, "lasclass" : {
"clascode" : "4", "clasitem" : "Medium Vegetation" }, "lasclass" : {
"clascode" : "5", "clasitem" : "High Vegetation" }, "lasclass" : {
"clascode" : "6", "clasitem" : "Buildings" }, "lasclass" : {
"clascode" : "7", "clasitem" : "Low Noise" }, "lasclass" : {
"clascode" : "9", "clasitem" : "Water" }, "lasclass" : {
"clascode" : "17", "clasitem" : "Bridge Decks" }, "lasclass" : {
"clascode" : "18", "clasitem" : "High Noise" }, "lasclass" : {
"clascode" : "20", "clasitem" : "Ignored Ground" } }} |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL 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 > WISCONSIN
|
Global Change Master Directory (GCMD) Location Keywords |
VERTICAL LOCATION > LAND SURFACE
|
UNCONTROLLED | |
None | Ashland County |
None | Florence County |
None | Iron County |
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: | None Planned |
Data Presentation Form: | Model (digital) |
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: | USGS; Quantum Spatial, Inc. |
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 |
---|---|
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: | 2021 |
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Date Effective To: | |
Contact (Organization): | U.S. Geological Survey |
Address: |
12201 Sunrise Valley Drive Reston, VA 20191 USA |
URL: | USGS Home |
Metadata 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 |
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: | -88.5513523488 | |
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E° Bound: | -88.0480301651 | |
N° Bound: | 45.996604196 | |
S° Bound: | 45.7039597157 | |
Description |
Florence County, WI |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2019-10-30 |
End: | 2020-05-05 |
Extent Group 2
Extent Group 2 / Geographic Area 1
W° Bound: | -90.7890108 | |
---|---|---|
E° Bound: | -90.3871563864 | |
N° Bound: | 47.084239482 | |
S° Bound: | 46.8285907554 | |
Description |
Ashland County QL2 area |
Extent Group 2 / Time Frame 1
Time Frame Type: | Discrete |
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Start: | 2020-05-05 |
Description: |
Date of data collection |
Extent Group 3
Extent Group 3 / Geographic Area 1
W° Bound: | -90.555236979 | |
---|---|---|
E° Bound: | -89.9108954796 | |
N° Bound: | 46.5621901618 | |
S° Bound: | 45.9713636421 | |
Description |
Iron County, WI |
Extent Group 3 / Time Frame 1
Time Frame Type: | Range |
---|---|
Start: | 2019-10-26 |
End: | 2020-05-20 |
Description: |
Collection dates for Iron County. |
Spatial Information
Spatial Representation
Representations Used
Grid: | No |
---|---|
Vector: | Yes |
Text / Table: | No |
TIN: | No |
Stereo Model: | No |
Video: | No |
Vector Representation 1
Point Object Present?: | Yes |
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Point Object Count: | 26554941784 |
Reference Systems
Reference System 1
Coordinate Reference System |
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Reference System 2
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 or 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: | 2023-12-13 |
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End Date: | Present |
Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9999/details/9999 |
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. |
Distribution Format: | Not Applicable |
Compression: | Zip |
Distribution 2
Start Date: | 2021 |
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End Date: | Present |
Download URL: | https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/WI_AshlandIronFlorence_2019_D19/ |
Distributor: | U.S. Geological Survey (2021 - Present) |
File Name: | Bulk Download |
Description: |
Bulk download of data files in LAZ format, with a vertical datum of NAVD88 (GEOID12B) and units in feet. This url links to the USGS copy of the files, from which the Entwine Point Tile files originated. These have not been reviewed by OCM and the link is provided here for convenience. |
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://s3-us-west-2.amazonaws.com/usgs-lidar-public/WI_Florence_6_2019/ept.json |
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Name: | EPT Florence QL2 |
URL Type: |
Online Resource
|
File Resource Format: | JSON |
Description: |
Entwine Point Tiles for the Florence County QL2 area |
URL 3
URL: | https://s3-us-west-2.amazonaws.com/usgs-lidar-public/WI_Ashland_4_2019/ept.json |
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Name: | EPT Ashland QL2 |
URL Type: |
Online Resource
|
File Resource Format: | JSON |
Description: |
Entwine Point Tiles for the Ashland County QL2 area |
URL 4
URL: | https://s3-us-west-2.amazonaws.com/usgs-lidar-public/WI_Iron_5_2019/ept.json |
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Name: | EPT Iron QL2 |
URL Type: |
Online Resource
|
File Resource Format: | JSON |
Description: |
Entwine Point Tiles for the Iron County QL2 area |
URL 5
URL: | https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/WI_AshlandIronFlorence_2019_D19/ |
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Name: | Data tiles in LAZ |
URL Type: |
Online Resource
|
File Resource Format: | LAZ |
Description: |
Original data tiles hosted by USGS. |
URL 6
URL: | https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/metadata/WI_AshlandIronFlorence_2019_D19/ |
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Name: | Reports and Metadata |
URL Type: |
Online Resource
|
File Resource Format: | |
Description: |
Reports and metadata for delivered data to USGS. |
Technical Environment
Description: |
MicroStation Version Connect; TerraScan Version 20.011; TerraModeler Version 20.004; GeoCue Version 2017.1.14.1; Esri ArcGIS 10.6; Global Mapper 19/20; RiProcess 1.8.5; Windows 10 Operating System \\point_cloud\tilecls\*.las |
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Data Quality
Vertical Positional Accuracy: |
This data set was produced to meet ASPRS Positional Accuracy Standard for Digital Geospatial Data (2014) for a 10-cm RMSEz Vertical Accuracy Class. |
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Completeness Report: |
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 the data pass Non-Vegetated Vertical Accuracy specifications. |
Conceptual Consistency: |
Data cover the entire area specified for this project. |
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-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
Process Steps
Process Step 1
Description: |
Raw Data and Boresight Processing: The boresight for each lift was done individually as the solution may change slightly from lift to lift. The following steps describe the Raw Data Processing and Boresight process: 1) Technicians processed the raw data to LAS format flight lines using the final GPS/IMU solution. This LAS data set was used as source data for boresight. 2) Technicians first used Quantum Spatial, Inc. proprietary and commercial software to calculate initial boresight adjustment angles based on sample areas selected in the lift. These areas cover calibration flight lines collected in the lift, cross tie, and production flight lines. These areas are well distributed in the lift coverage and cover multiple terrain types that are necessary for boresight angle calculation. The technicians then analyzed the results and made any necessary additional adjustment until it was acceptable for the selected areas. 3) Once the boresight angle calculation was completed for the selected areas, the adjusted settings were applied to all of the flight lines of the lift and checked for consistency. The technicians utilized commercial and proprietary software packages to analyze how well flight line overlaps matched for the entire lift and adjusted as necessary until the results met the project specifications. 4) Once all lifts were completed with individual boresight adjustment, the technicians checked and corrected the vertical misalignment of all flight lines and also the matching between data and ground truth. The relative accuracy was less than or equal to 7 cm RMSEz within individual swaths and less than or equal to 10 cm RMSEz or within swath overlap (between adjacent swaths). 5) The technicians ran a final vertical accuracy check of the boresighted flight lines against the surveyed checkpoints after the z correction to ensure the requirement of NVA = 19.6 cm 95% Confidence Level (Required Accuracy) was met. |
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Process Date/Time: | 2020-01-01 00:00:00 |
Process Step 2
Description: |
LAS Point Classification: The point classification was performed as described below. The bare earth surface was manually reviewed to ensure correct classification on the Class 2 (Ground) points. After the bare-earth surface was finalized, it was then used to generate all hydro-breaklines through heads-up digitization. All ground (ASPRS Class 2) LiDAR data inside of the Lake Pond and Double Line Drain hydro-flattened breaklines were then classified to Water (ASPRS Class 9) using proprietary tools. A buffer of 1 meter was also used around each hydro-flattened feature to classify these ground (ASPRS Class 2) points to Ignored ground (ASPRS Class 20). All Lake Pond Island and Double Line Drain Island features were checked to ensure that the ground (ASPRS Class 2) points were reclassified to the correct classification after the automated classification was completed. Any noise that was identified either through manual review or automated routines was classified to the appropriate class ( ASPRS Class 7 and/or ASPRS Class 18) followed by flagging with the withheld bit. All data were 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. Quantum Spatial, Inc. proprietary software 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. |
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Process Date/Time: | 2020-01-01 00:00:00 |
Process Step 3
Description: |
USGS converted the data to Entwine Point Tiles (EPT) in Web Mercator projection. NOAA ingested references to the EPT data into the Digital Coast Data Access Viewer. This metadata was created to support custom processing of the data in the Data Access Viewer. |
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Process Date/Time: | 2023-12-13 00:00:00 |
Process Contact: | NOAA Office for Coastal Management (NOAA/OCM) |
Phone (Voice): | (843) 740-1202 |
Email Address: | coastal.info@noaa.gov |
Catalog Details
Catalog Item ID: | 71674 |
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GUID: | gov.noaa.nmfs.inport:71674 |
Metadata Record Created By: | Kirk Waters |
Metadata Record Created: | 2023-12-13 20:41+0000 |
Metadata Record Last Modified By: | Rebecca Mataosky |
Metadata Record Last Modified: | 2024-08-20 13:10+0000 |
Metadata Record Published: | 2023-12-13 |
Owner Org: | OCMP |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2023-12-13 |
Metadata Review Frequency: | 3 Years |
Metadata Next Review Date: | 2026-12-13 |