Manitowoc Co. QL2 LiDAR (2015-16) - Classified Point Cloud
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:50192 | Updated: August 9, 2022 | Published / External
Summary
Short Citation
OCM Partners, 2024: Manitowoc Co. QL2 LiDAR (2015-16) - Classified Point Cloud, https://www.fisheries.noaa.gov/inport/item/50192.
Full Citation Examples
The Manitowoc County lidar project area covers approximately 602 square miles plus a 100 meter buffer around the county boundary. The lidar data was acquired at a nominal point spacing (NPS) of 0.7 meters and a single swath nominal point density (NPD) of 2.0. Project specifications are based on Manitowoc County requirements and on the U.S. Geological Survey National Geospatial Program LiDAR Base Specification, Version 1.2. The data was developed based on a horizontal projection/datum of NAD83(2011) / WISCRS Manitowoc (ftUS) (EPSG code: 7614), and vertical datum of NAVD88 - Geoid12A (Feet). LiDAR data was acquired using the Orion Optech H300 sensor from November 2, 2015 to November 10, 2015 in five total lifts. Acquisition occurred after leaves had fallen from deciduous trees, before snow was on the ground, and with rivers at or below normal levels.
Data were converted to geographic coordinates in ellipsoid heights for ingest into the Digital Coast Data Access Viewer. Further automated processing may have occurred and is noted in the processing section.
Original contact information:
Contact Name: Cathy DeLain
Contact Org: Manitowoc County
Title: GIS Coordinator
Phone: 920-683-2781
Email: cathydelain@co.manitowoc.wi.us
Distribution Information
-
Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
-
Simple download of data files.
No restrictions apply to these data.
None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations. Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data.
Controlled Theme Keywords
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
-88.047445° W,
-87.505089° E,
44.329611° N,
43.889563° S
2015-11-02 - 2015-11-10
Item Identification
Title: | Manitowoc Co. QL2 LiDAR (2015-16) - Classified Point Cloud |
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Short Name: | wi2015_Manitowoc_m6339_metadata |
Status: | Completed |
Publication Date: | 2017-07-15 |
Abstract: |
The Manitowoc County lidar project area covers approximately 602 square miles plus a 100 meter buffer around the county boundary. The lidar data was acquired at a nominal point spacing (NPS) of 0.7 meters and a single swath nominal point density (NPD) of 2.0. Project specifications are based on Manitowoc County requirements and on the U.S. Geological Survey National Geospatial Program LiDAR Base Specification, Version 1.2. The data was developed based on a horizontal projection/datum of NAD83(2011) / WISCRS Manitowoc (ftUS) (EPSG code: 7614), and vertical datum of NAVD88 - Geoid12A (Feet). LiDAR data was acquired using the Orion Optech H300 sensor from November 2, 2015 to November 10, 2015 in five total lifts. Acquisition occurred after leaves had fallen from deciduous trees, before snow was on the ground, and with rivers at or below normal levels. Data were converted to geographic coordinates in ellipsoid heights for ingest into the Digital Coast Data Access Viewer. Further automated processing may have occurred and is noted in the processing section. Original contact information: Contact Name: Cathy DeLain Contact Org: Manitowoc County Title: GIS Coordinator Phone: 920-683-2781 Email: cathydelain@co.manitowoc.wi.us |
Purpose: |
This data, along with its derivatives, is the result of a countywide elevation mapping with cooperative partnerships from Manitowoc County, Wisconsin DOA, and the USGS 3DEP program. This data was produced from lidar data collected in November 2015, which was processed and delivered in 2016. |
Notes: |
10836 |
Supplemental Information: |
Reports for this project may be viewed at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/6339/supplemental The following are the USGS lidar fields in JSON: {
"ldrinfo" : {
"ldrspec" : "USGS-NGP Lidar Base Specification v1.2", "ldrsens" : "Optech Orion H300", "ldrmaxnr" : "5", "ldrnps" : "0.69", "ldranps" : "0.69", "ldrdens" : "2.19", "ldradens" : "2.19", "ldrfltht" : "1700", "ldrfltsp" : "140", "ldrscana" : "38", "ldrscanr" : "52", "ldrpulsr" : "225", "ldrpulsd" : "4", "ldrpulsw" : "0.41", "ldrwavel" : "1064", "ldrmpia" : "1", "ldrbmdiv" : "0.25", "ldrswatw" : "1170.71", "ldrswato" : "30", "ldrcrs" : "NAD83(2011) / WISCRS Manitowoc (ftUS) (EPSG code: 7614)", "ldrgeoid" : "National Geodetic Survey (NGS) Geoid12A" }, "ldraccur" : {
"ldrchacc" : "n/a", "rawnva" : "0.303", "rawnvan" : "45" }, "lasinfo" : {
"lasver" : "1.4", "lasprf" : "1", "laswheld" : "n/a", "lasolap" : "n/a", "lasintr" : "11", "lasclass" : {
"clascode" : "1", "clasitem" : "Processed, but Unclassified" }, "lasclass" : {
"clascode" : "2", "clasitem" : "Bare Earth" }, "lasclass" : {
"clascode" : "5", "clasitem" : "High Vegetation" }, "lasclass" : {
"clascode" : "6", "clasitem" : "Building" }, "lasclass" : {
"clascode" : "7", "clasitem" : "Noise" }, "lasclass" : {
"clascode" : "9", "clasitem" : "Water" }, "lasclass" : {
"clascode" : "10", "clasitem" : "Ignored Ground" }, "lasclass" : {
"clascode" : "17", "clasitem" : "Bridge Decks" }, "lasclass" : {
"clascode" : "18", "clasitem" : "High Noise" } }} |
Keywords
Theme Keywords
Thesaurus | Keyword |
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ISO 19115 Topic Category |
elevation
|
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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Maintenance Frequency: | None Planned |
Distribution Liability: |
Any conclusions drawn from the analysis of this information are not the responsibility of Ayers Associates, the U.S. Geological Survey, the NOAA Office for Coastal Management or its partners. |
Support Roles
Data Steward
Date Effective From: | 2017-07-15 |
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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: | 2017-07-15 |
---|---|
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: | 2017-07-15 |
---|---|
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: | 2017-07-15 |
---|---|
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: | -88.047445 | |
---|---|---|
E° Bound: | -87.505089 | |
N° Bound: | 44.329611 | |
S° Bound: | 43.889563 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2015-11-02 |
End: | 2015-11-10 |
Spatial Information
Spatial Representation
Representations Used
Vector: | Yes |
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Access Information
Security Class: | Unclassified |
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Data Access Procedure: |
This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer ; |
Data Access Constraints: |
No restrictions apply to these data. |
Data Use Constraints: |
None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations. Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data. |
Distribution Information
Distribution 1
Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6339 |
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Distributor: | |
File Name: | Customized Download |
Description: |
Create custom data files by choosing data area, product type, map projection, file format, datum, etc. |
Distribution 2
Download URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/6339/index.html |
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Distributor: | |
File Name: | Bulk Download |
Description: |
Simple download of data files. |
URLs
URL 1
URL: | https://coast.noaa.gov/dataviewer |
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URL Type: |
Online Resource
|
URL 2
URL: | https://coast.noaa.gov |
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URL Type: |
Online Resource
|
Activity Log
Activity Log 1
Activity Date/Time: | 2017-07-06 |
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Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
Activity Date/Time: | 2017-11-14 |
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Description: |
Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. |
Activity Log 3
Activity Date/Time: | 2018-02-08 |
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Description: |
Partial upload of Positional Accuracy fields only. |
Activity Log 4
Activity Date/Time: | 2018-03-13 |
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Description: |
Partial upload to move data access links to Distribution Info. |
Technical Environment
Description: |
Environment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1 (Build 4959) Service Pack N/A (Build N/A) |
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Data Quality
Accuracy: |
No formal attribute accuracy tests were conducted. |
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Vertical Positional Accuracy: |
The project specifications require the vertical accuracy of the LiDAR data to be calculated and reported according to Non-vegetated Vertical Accuracy (NVA) and Vegetated Vertical Accuracy (VVA) classifications. The required NVA for this project is 19.6 cm (0.643 survey feet) calculated at the 95 percent confidence level (AccuracyZ). The 95 percent confidence level statistic is derived according to National Standards for Spatial Data Accuracy (NSSDA) methodologies using RMSEz * 1.9600. This requirement is for the vertical accuracy testing of the raw swath lidar data and the derived digital elevation model (DEM). The AccuracyZ statistic is assessed and reported using National Digital Elevation Program (NDEP)/ASPRS Guidelines. The minimum required number of NVA checkpoints for this project area is 45.
The required VVA for this project is 29.4 cm (0.965 survey feet) calculated at the 95th percentile derived according to ASPRS Guidelines, Vertical Accuracy Reporting for Lidar Data, i.e., based on the 95th percentile error in all vegetated land cover classes combined. This requirement is for the vertical accuracy testing of the derived digital elevation model (DEM). The minimum required number of VVA checkpoints for this project area is 35. The NVA (bare earth and urban area land cover classes) and VVA (tall weeds, forested, and swamp land cover classes) checkpoints were distributed throughout the project area and were surveyed using GPS techniques. See survey report for additional survey methodologies. Elevations from the hydro flattened raster DEM were measured for the x,y location of each check point. Elevations interpolated from the hydro flattened raster DEM surface were then compared to the elevation values of the surveyed control points.; Quantitative Value: 0.092 meters, Test that produced the value: Tested 0.092 meters (0.303 survey feet) NVA at the 95 percent confidence level. The NVA of the raw swath was calculated using 45 independent checkpoints located in the Bare Earth and Urban land cover categories. |
Completeness Report: |
Spatial consistency of coverage of the Manitowoc Co. QL2 LiDAR (2015-16) project area was maintained throughout the dataset. |
Conceptual Consistency: |
Spatial consistency of coverage of the Manitowoc Co. QL2 LiDAR (2015-16) project area was maintained throughout the dataset. |
Lineage
Process Steps
Process Step 1
Description: |
LiDAR processing utilizes several software packages, including GeoCue and the TerraSolid suite of processing components. The GeoCue software is a database management system for housing the LiDAR dataset (usually multiple gigabytes in size). GeoCue incorporates a thorough checklist of processing steps and quality assurance/quality control (QA/QC) procedures that assist in the LiDAR workflow. The TerraSolid software suite is used to automate the initial classification of the LiDAR point cloud based on a set of predetermined parameters. Lidar technicians refer to ground cover research (natural and cultural features) within the project area and determine algorithms most suitable for the initial automated LiDAR classification. (Some algorithms/filters recognize the ground in forests well, while others have greater capability in urban areas). During this process each point is given an initial classification (e.g., as ground, vegetation, or noise) based on the point's coordinates and the relation to its neighbors. Classifications to be assigned include all those outlined by ASPRS standards. The initial classifications produce a coarse and inexact dataset, but offer an adequate starting point for the subsequent manual classification procedure. During this step, "overlap" points are automatically classified (those originating from neighboring flightlines) using information gathered from the ABGPS and IMU data. Any duplicate points existing from adjacent flightlines are removed during this process. Hydrographic breaklines are collected using LiDARgrammetry to ensure hydro flattened water surfaces. This process involves manipulating the LiDAR data's intensity information to create a metrically sound stereo environment. From this generated "imagery", breaklines are photogrammetrically compiled. Breakline polygons are created to represent open water bodies. The LiDAR points that fall within these areas are classified as "water." All hydrographic breaklines include a 3.125 foot buffer, with the Class 2 (bare earth) points being re-classified as Class 10 (ignored ground). TerraSolid is further used for the subsequent manual classification of the LiDAR points allowing technicians to view the point cloud in a number of ways to ensure accuracy and consistency of points and uniformity of point coverage. |
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Process Step 2
Description: |
The NOAA Office for Coastal Management received the data from the Wisconsin Department of Natural Resources in LAS 1.4 format. The data were reprojected from NAD83(2011) / WISCRS Manitowoc (ftUS) (EPSG code: 7614) to NAD83(2011) geographic coordinates horizontally. Vertically, the data was converted to meters and then the GEOID12a model was removed to obtain ellipsoid heights. Existing georeferencing information in the files was superseded by setting to record id = 7. |
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Process Date/Time: | 2017-07-05 00:00:00 |
Catalog Details
Catalog Item ID: | 50192 |
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GUID: | gov.noaa.nmfs.inport:50192 |
Metadata Record Created By: | Anne Ball |
Metadata Record Created: | 2017-11-15 15:24+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 |