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

CC ID: 698084

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

CC ID: 698083

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

CC ID: 698085

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

CC ID: 698082

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

CC ID: 698086

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

CC ID: 1140562

W° Bound:	-92.296
E° Bound:	-91.55
N° Bound:	46.758
S° Bound:	46.156

Extent Group 1 / Time Frame 1

CC ID: 1140561

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

CC ID: 698090

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

CC ID: 698091

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

CC ID: 698078

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

CC ID: 698079

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

CC ID: 698080

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

CC ID: 698081

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

CC ID: 698111

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

CC ID: 702128

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:	pdf
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

CC ID: 1140556

Process Steps

Process Step 1

CC ID: 1140557

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

CC ID: 1140558

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

CC ID: 1140559

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:	2022-08-09 17:11+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