2016 3DEP Lidar: Douglas County, WI
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:50444 | Updated: August 15, 2023 | Published / External
Summary
Short Citation
OCM Partners, 2024: 2016 3DEP Lidar: Douglas County, WI, https://www.fisheries.noaa.gov/inport/item/50444.
Full Citation Examples
EagleView acquired highly accurate Light Detection and Ranging (LiDAR) elevation data at the USGS QL2 guidelines for the County of Douglas, Wisconsin in November 2016. This data set represents County of Douglas, comprised of approximately 1,333 square miles. LiDAR for this data set was classified and quality controlled by EagleView. Products were generated by Ground Point and subsequently quality controlled by EagleView.
The NOAA Office for Coastal Management (OCM) downloaded the lidar and breakline data from the City of Superior, WI site, processed it, and made it available on the the NOAA Digital Coast. The breakline data has not been reviewed and is made available at the user's discretion.
Distribution Information
-
Link to custom download
-
Link to bulk download
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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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
Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
Extents
-92.296° W,
-91.55° E,
46.758° N,
46.156° S
2016-11-06 - 2016-11-26
Item Identification
| Title: | 2016 3DEP Lidar: Douglas County, WI |
|---|---|
| Short Name: | wi2016_douglas_m8405_metadata |
| Status: | Completed |
| Publication Date: | 2017-12-14 |
| Abstract: |
EagleView acquired highly accurate Light Detection and Ranging (LiDAR) elevation data at the USGS QL2 guidelines for the County of Douglas, Wisconsin in November 2016. This data set represents County of Douglas, comprised of approximately 1,333 square miles. LiDAR for this data set was classified and quality controlled by EagleView. Products were generated by Ground Point and subsequently quality controlled by EagleView. The NOAA Office for Coastal Management (OCM) downloaded the lidar and breakline data from the City of Superior, WI site, processed it, and made it available on the the NOAA Digital Coast. The breakline data has not been reviewed and is made available at the user's discretion. |
| Purpose: |
The purpose of this data set is to provide a high accuracy land surface model of the County of Douglas, WI and provide geographic products to the client. These products include a LiDAR point cloud and hydrologic breaklines. |
| Supplemental Information: |
CONTRACTOR: EagleView The following are the USGS lidar fields in JSON: {
"lidar" : {
"ldrinfo" : {
"ldrspec" : "USGS-NGP Base Specification v1.2", "ldrsens" : "Optech Galaxy Airborne Laser Terrain Mappers (ALTM)", "ldrmaxnr" : "4", "ldrnps" : "0.53", "ldrdens" : "3.35", "ldranps" : "0.53", "ldradens" : "3.35", "ldrfltht" : "5249", "ldrfltsp" : "122.5", "ldrscana" : "40", "ldrscanr" : "48", "ldrpulsr" : "300", "ldrpulsd" : "10", "ldrpulsw" : "3", "ldrwavel" : "1064", "ldrmpia" : "4", "ldrbmdiv" : "HIGH", "ldrswatw" : "887.36", "ldrswato" : "30", "ldrgeoid" : "National Geodetic Survey (NGS) Geoid12B" }, "ldraccur" : {
"ldrchacc" : "0.5", "rawnva" : "0.9884", "rawnvan" : "35", "clsnva" : "0.243", "clsnvan" : "35" }, "lasinfo" : {
"lasver" : "1.2", "lasprf" : "1", "laswheld" : "Withheld (ignore) points were not identified in these files using the standard LAS Withheld bit.", "lasolap" : "Swath "overage" points were identified in these files using the standard LAS overlap class, but were not identified using the standard LAS Overlap bit.", "lasintr" : "8-bit", "lasclass" : {
"clascode" : "1", "clasitem" : "Default/Unclassified" }, "lasclass" : {
"clascode" : "2", "clasitem" : "Bare earth" }, "lasclass" : {
"clascode" : "7", "clasitem" : "Low Noise (manually identified; if needed)" }, "lasclass" : {
"clascode" : "9", "clasitem" : "Water" }, "lasclass" : {
"clascode" : "10", "clasitem" : "Ignored Ground (Breakline proximity)" }, "lasclass" : {
"clascode" : "12", "clasitem" : "Overlap" }, "lasclass" : {
"clascode" : "17", "clasitem" : "Bridge Decks" }, "lasclass" : {
"clascode" : "18", "clasitem" : "High Noise (manually identified; if needed)" } } }} |
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
|
| UNCONTROLLED | |
| None | Add any additional keywords from provided metadata |
| None | high resolution |
| None | Light Detection and Ranging |
Spatial Keywords
| Thesaurus | Keyword |
|---|---|
| Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WISCONSIN
|
Physical Location
| Organization: | Office for Coastal Management |
|---|---|
| City: | Charleston |
| State/Province: | SC |
| Country: | USA |
Data Set Information
| Data Set Scope Code: | Data Set |
|---|---|
| Data Set Type: | Elevation |
| Maintenance Frequency: | None Planned |
| Data Presentation Form: | Point Cloud (digital) |
| Distribution Liability: |
Any conclusions drawn from the analysis of this information are not the responsibility of EagleView, Ground Point, the City of Superior, WI, NOAA, the Office for Coastal Management, or its partners. |
| Data Set Credit: | EagleView; Ground Point; City of Superior, WI |
Support Roles
Data Steward
| Date Effective From: | 2017-11-22 |
|---|---|
| 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: | 2017-11-22 |
|---|---|
| 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: | 2017-11-22 |
|---|---|
| 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 |
Originator
| Date Effective From: | 2016-11-06 |
|---|---|
| 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: | 2017-11-22 |
|---|---|
| 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
| W° Bound: | -92.296 | |
|---|---|---|
| E° Bound: | -91.55 | |
| N° Bound: | 46.758 | |
| S° Bound: | 46.156 |
Extent Group 1 / Time Frame 1
| Time Frame Type: | Range |
|---|---|
| Start: | 2016-11-06 |
| End: | 2016-11-26 |
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
| Start Date: | 2017-12-14 |
|---|---|
| End Date: | Present |
| Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8405 |
| Distributor: | |
| Description: |
Link to custom download |
| Compression: | Zip |
Distribution 2
| Start Date: | 2017-12-14 |
|---|---|
| End Date: | Present |
| Download URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8405/index.html |
| Distributor: | |
| Description: |
Link to bulk download |
URLs
URL 1
| URL: | https://coast.noaa.gov/htdata/lidar2_z/geoid12b/data/8405/supplemental/wi2016_douglas_m8405.kmz |
|---|---|
| URL Type: |
Browse Graphic
|
| File Resource Format: | HTML |
| Description: |
This graphic displays the footprint for this lidar data set. |
URL 2
| URL: | https://coast.noaa.gov/dataviewer |
|---|---|
| URL Type: |
Online Resource
|
| File Resource Format: | HTML |
| Description: |
Data Access Viewer for discovering coastal imagery, land cover, and elevation data |
URL 3
| URL: | https://coast.noaa.gov/dataregistry |
|---|---|
| URL Type: |
Online Resource
|
| File Resource Format: | HTML |
| Description: |
Web page to the Digital Coast for finding coastal data |
URL 4
| URL: | https://coast.noaa.gov |
|---|---|
| URL Type: |
Online Resource
|
| File Resource Format: | HTML |
| Description: |
Web page for the NOAA Office for Coastal Management |
URL 5
| URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8405/breaklines/index.html |
|---|---|
| URL Type: |
Online Resource
|
| File Resource Format: | zip |
| Description: |
Breaklines for Douglas County, WI |
URL 6
| URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8405/supplemental/wi2016_douglas_m8405_qc_report.pdf |
|---|---|
| URL Type: |
Online Resource
|
| File Resource Format: | |
| Description: |
QC Report for Douglas County, WI |
Data Quality
| Horizontal Positional Accuracy: |
Not Provided |
|---|---|
| Vertical Positional Accuracy: |
The RMSEz was computed to be 7.2 cm RMSE. AccuracyZ has been tested to meet 19.0 cm Fundamental Vertical Accuracy at 95 percent confidence level using (RMSEz * 1.9600) as defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported using National Digital Elevation Program (3DEP)/ASPRS Guidelines. The QC report is available via a link in the URL section of this metadata record. |
Lineage
Sources
Vector digital data and tabular data used to geo-reference the lidar point cloud data
Process Steps
Process Step 1
| Description: |
Lidar Preprocessing: Airborne GPS and IMU data were merged to develop a Single Best Estimate of Trajectory (SBET) of the lidar system trajectory for each lift. Lidar ranging data were initially calibrated using previous best parameters for this instrument and aircraft. Relative calibration was evaluated using advanced plane-matching analysis and parameter corrections were derived. This relative calibration was repeated iteratively until residual errors between overlapping swaths, across all project lifts, was reduced to 3 cm or less. Data were then block adjusted to match surveyed calibration control. |
|---|---|
| Process Date/Time: | 2016-11-22 00:00:00 |
Process Step 2
| Description: |
Lidar Post-Processing: After generation of the calibrated point cloud data in LAS format from Optech's Lidar Mapping Suite (LMS), the data is imported into the TerraSolid software suite (running under Bentleys MicroStation) for matching and classification. Upon import, the data is divided into tiles for the purpose of creating more manageable data. Once imported to TerraSolid, blocks of data containing overlapping flight lines are selected. The data in these blocks is analyzed by TerraMatch and adjustments to the roll, pitch, heading, and scale that minimize any data misalignment between the flight lines are computed. These adjustments are then applied to the entire missions worth of data. Data across the mission is then manually reviewed to ensure proper alignment between flightlines has been achieved. This process is then repeated for each mission; once complete, intra-sortie alignment is verified |
|---|---|
| Process Date/Time: | 2016-12-13 00:00:00 |
Process Step 3
| Description: |
The NOAA Office for Coastal Management (OCM) downloaded the lidar point cloud and breakline data from the City of Superior, WI site on Oct 20, 2017. The files contained lidar elevation and intensity measurements. The data were in WISCRS Douglas feet (NAD83 2011) coordinates and NAVD88 (Geoid12b) elevations in feet. OCM did the following processing to the data for Digital Coast storage and provisioning purposes: 1. Converted the lidar point cloud data from WISCRS Douglas ft (NAD83 2011) coordinates to geographic coordinates 2. Converted the lidar point cloud data from NAVD88 (Geoid12b) elevations to NAD83 (2011) ellipsoid elevations using Geoid12b grids 3. Converted the lidar point cloud data from ft to meters 4. Copied the lidar point cloud laz files to database and https 5. Created an OGC GeoPackage (gpkg) version of the breaklines from the ESRI GeoDatabase (gdb) and copied it and the gdb to https |
|---|---|
| Process Date/Time: | 2017-11-20 00:00:00 |
| Process Contact: | Office for Coastal Management (OCM) |
Catalog Details
| Catalog Item ID: | 50444 |
|---|---|
| GUID: | gov.noaa.nmfs.inport:50444 |
| Metadata Record Created By: | Rebecca Mataosky |
| Metadata Record Created: | 2017-11-29 11:15+0000 |
| Metadata Record Last Modified By: | SysAdmin InPortAdmin |
| Metadata Record Last Modified: | 2023-08-15 17:09+0000 |
| Metadata Record Published: | 2022-03-16 |
| Owner Org: | OCMP |
| Metadata Publication Status: | Published Externally |
| Do Not Publish?: | N |
| Metadata Last Review Date: | 2022-03-16 |
| Metadata Review Frequency: | 1 Year |
| Metadata Next Review Date: | 2023-03-16 |