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2011 USACE NCMP Topobathy Lidar: Michigan (Lake Superior) and New York (Lakes Erie and Ontario) Coastlines

Data Set (DS)  |  OCM Partners (OCMP)
GUID: gov.noaa.nmfs.inport:50095  |  Updated: October 17, 2023  |  Published / External 
Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
URLs
Activity Log
Tech Environment
Data Quality
Lineage
Related Items
Catalog Details

Summary

Browse Graphic

Short Citation
OCM Partners, 2024: 2011 USACE NCMP Topobathy Lidar: Michigan (Lake Superior) and New York (Lakes Erie and Ontario) Coastlines, https://www.fisheries.noaa.gov/inport/item/50095.
Full Citation Examples

Abstract

These files contain classified topographic and bathymetric lidar data as unclassified valid topographic data (1), valid topographic data classified as ground (2), low points or noise (7), valid bathymetric data (11). Classes 1, 2 and 7 are defined in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS)

classification standards, while class 11 is specific to the NOAA OCM. These data were collected by the Compact Hydrographic Airborne Rapid Total Survey (CHARTS) system along the coast of Michigan and New York. CHARTS integrates topographic and bathymetric lidar sensors, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. Data coverage generally extends along the coastline from the waterline inland 500 meters (topography) and offshore 1,000 meters or to laser extinction (bathymetry). Native lidar data is not generally in a format accessible to most Geographic Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3-dimensional positions that can be imported into GIS software for visualization and further analysis. The 3-D position data are sub-divided into a series of LAS files, each covering approximately 5 kilometers of shoreline. LiDAR data was collected at a nominal point spacing (NPS) of 2.0 meters. The format of the file is LAS version 1.2.

In addition to these lidar point data, the bare earth Digital Elevation Models (DEM) created from the lidar point data are also available. These data are available for custom download at the link provided in the URL section of this metadata record.

Distribution Information

  • Create custom data files by choosing data area, product type, map projection, file format, datum, etc.

  • LAS/LAZ - LASer

    Simple download of data files.

Access Constraints:

None

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. These data

depict the heights at the time of the survey and are only accurate for that time.

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

Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202

Extents

Geographic Area 1

-88.265652° W, -76.108973° E, 47.253288° N, 42.542072° S

Time Frame 1
2011-06-06 - 2011-09-23

Item Identification

Title: 2011 USACE NCMP Topobathy Lidar: Michigan (Lake Superior) and New York (Lakes Erie and Ontario) Coastlines
Short Name: usace2011_GreatLakes_m1407_metadata
Status: Completed
Creation Date: 2011
Publication Date: 2012-11-02
Abstract:

These files contain classified topographic and bathymetric lidar data as unclassified valid topographic data (1), valid topographic data classified as ground (2), low points or noise (7), valid bathymetric data (11). Classes 1, 2 and 7 are defined in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS)

classification standards, while class 11 is specific to the NOAA OCM. These data were collected by the Compact Hydrographic Airborne Rapid Total Survey (CHARTS) system along the coast of Michigan and New York. CHARTS integrates topographic and bathymetric lidar sensors, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. Data coverage generally extends along the coastline from the waterline inland 500 meters (topography) and offshore 1,000 meters or to laser extinction (bathymetry). Native lidar data is not generally in a format accessible to most Geographic Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3-dimensional positions that can be imported into GIS software for visualization and further analysis. The 3-D position data are sub-divided into a series of LAS files, each covering approximately 5 kilometers of shoreline. LiDAR data was collected at a nominal point spacing (NPS) of 2.0 meters. The format of the file is LAS version 1.2.

In addition to these lidar point data, the bare earth Digital Elevation Models (DEM) created from the lidar point data are also available. These data are available for custom download at the link provided in the URL section of this metadata record.
Purpose:

These data were collected as a part of the NCMP to depict the elevations above and below the water in the Michigan and New York Great Lakes coastal zones.
Notes:

10739
Supplemental Information:

A footprint of this data set may be viewed in Google Earth at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/1407/supplemental/2011_USACE_NY_MI_GreatLakes_TopoBathy_Lidar_Footprint.kmz

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None Compact Hydrographic Airborne Rapid Total Survey (CHARTS)
None IWG-OCM
None National Coastal Mapping Program (NCMP)
None U.S. Army Corps of Engineers (USACE)

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: las
Entity Attribute Overview:

LiDAR points in LAS 1.2 format
Entity Attribute Detail Citation:

none
Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility

of JALBTCX, USACE, the Office for Coastal Management or its partners.

Support Roles

Data Steward

CC ID: 690224
Date Effective From: 2012-11-02
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: 690226
Date Effective From: 2012-11-02
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: 690227
Date Effective From: 2012-11-02
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: 690225
Date Effective From: 2012-11-02
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: 1133180
W° Bound: -88.265652
E° Bound: -76.108973
N° Bound: 47.253288
S° Bound: 42.542072

Extent Group 1 / Time Frame 1

CC ID: 1133179
Time Frame Type: Range
Start: 2011-06-06
End: 2011-09-23

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Access Information

Security Class: Unclassified
Data Access Procedure:

This data can be obtained on-line at the following URL:

https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=1407

;
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. These data

depict the heights at the time of the survey and are only accurate for that time.

Distribution Information

Distribution 1

CC ID: 743001
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=1407
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2012-11-02 - Present)
File Name: Customized Download
Description:

Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
File Type (Deprecated): Zip
Compression: Zip

Distribution 2

CC ID: 743002
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/1407/index.html
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2012-11-02 - Present)
File Name: Bulk Download
Description:

Simple download of data files.
File Type (Deprecated): LAZ
Distribution Format: LAS/LAZ - LASer
Compression: Zip

URLs

URL 1

CC ID: 743004
URL: https://coast.noaa.gov/dataviewer
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

CC ID: 743005
URL: https://coast.noaa.gov
Name: NOAA's Office for Coastal Management (OCM) website
URL Type:
Online Resource
File Resource Format: HTML
Description:

Information about the NOAA Office for Coastal Management (OCM)

URL 3

CC ID: 743006
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/1407/supplemental/2011_USACE_NY_MI_GreatLakes_TopoBathy_Lidar_Footprint.kmz
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: kmz
Description:

This graphic shows the lidar coverage for the Great Lakes regions of New York and Michigan.

URL 4

CC ID: 1111801
URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9431/details/9431
Name: Custom DEM Download
URL Type:
Online Resource
File Resource Format: Zip
Description:

Link to custom download, from the Data Access Viewer (DAV), the raster Digital Elevation Model (DEM) data that were created from this lidar data set.

Activity Log

Activity Log 1

CC ID: 690259
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 690258
Activity Date/Time: 2017-11-14
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

CC ID: 718699
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 743003
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Technical Environment

Description:

Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.3.3600

Data Quality

Horizontal Positional Accuracy:

The data positions were obtained using post processed KGPS methods.; Quantitative Value: 0.75 meters, Test that produced the value: Points measured will produce an error less than 0.75m RMSE at the 95% Confidence Level.
Vertical Positional Accuracy:

The data positions were obtained using post processed KGPS methods.; Quantitative Value: 0.20 meters, Test that produced the value: Points measured will produce an error less than 0.20m RMSE at the 95% Confidence Level.
Completeness Report:

This data set covers the spatial extent of bathymetric and topographic lidar data obtained during this survey.
Conceptual Consistency:

Differences between a DEM created from the lidar data representing bare ground and the ground truth data is unbiased and within +/- 20 cm (RMSE) in flat terrain and within +/-30 cm (RMSE) in hilly terrain.

Lineage

Lineage Statement:

The USACE collected, processed, and provided the data to the NOAA Office for Coastal Management (OCM). OCM received the data and processed it to be available for custom download from the Data Access Viewer (DAV) and for bulk download from https.

Sources

USACE JALBTCX

CC ID: 1133174
Contact Role Type: Originator
Contact Type: Organization
Contact Name: USACE JALBTCX

Process Steps

Process Step 1

CC ID: 1133175
Description:

These data were collected using the CHARTS system. It is owned by the Naval

Oceanographic Office and operated through contract. The system collects topographic lidar data at 10 kHz,

bathymetric lidar data at 1 kHz and RGB imagery at 1Hz. A CASI-1500 hyperspectral line scanner is

integrated with the system as well. Aircraft position, velocity and acceleration information are collected

through a combination of Novatel and POS A/V 410 equipment. All raw data streams are transferred to the

office for downloading and processing in SHOALS GCS software. Aircraft position data are processed using

POSPac software and the results are combined with the lidar data to produce 3-D positions for each lidar

shot. Upon inspection and QA/QC in the software packages Fledermaus and PFM_ABE, anomalous data are flagged

as invalid. PFM_ABE's charts2las module then converts all valid data from ellipsoid to orthometric heights

based on the NGS' GEOID03 model and exports topographic and bathymetric data as a series of LAS files, one

file per flight line. The format of the file is LAS version 1.2. Data are classified as 0 (valid topographic data),

21 (valid topographic data acquired with the bathymetric sensor), 27 (invalid topographic and bathymetric data),

29 (valid bathymetric data). The data are then shifted vertically to the International Great Lakes Datum of 1985 (IGLD85)

using the VDatum program from NOAA (National Oceanic and Atmospheric Administration).
Process Date/Time: 2011-12-16 00:00:00

Process Step 2

CC ID: 1133176
Description:

The flightline LAS files are imported into GeoCue V7.0.3.5, which is a geospatial

workflow production and management software tool employed by JALBTCX to perform and monitor production of

data products. Upon import into GeoCue, the flightline LAS files are divided into a series of boxes, each

of which are 1500 meters in length and width. A customized classification macro, built upon the TerraScan

V11 module within Microstation V8i, classifies valid topographic data as ground points (2) and unclassified

points (1). Upon completion the macro, the classification results undergo quality control and any

misclassified points are manually edited. In areas of dense vegetation the bare earth ground points might

be incorrectly classified due to the inability of the laser to penetrate the canopy and reach the bare

ground. In these areas, JALBTCX defaults to the algorithms ground surface instead of manually reclassifying

those points. The final classification results are comprised of individual lidar points with classification

s of ground (2) or unclassified (1). They are partitioned into a series of 5km delivery boxes, one

Classified LAS file per box. The format of the file is LAS version 1.2. Data are classified as 1

(valid non-ground topographic data), 2 (valid ground topographic data), 21 (valid topographic data acquired

with the bathymetric sensor), 27 (invalid topographic and bathymetric data), 29 (valid bathymetric data).
Process Date/Time: 2011-12-19 00:00:00

Process Step 3

CC ID: 1133177
Description:

The NOAA Office for Coastal Management (OCM) received classified topographic files in LAS format. The files contained lidar

elevation measurements. The data were received in North American Datum 1983 (NAD83) geographic coordinates

and were vertically referenced to NAVD88 using the Geoid09 model. The vertical units of the data were

meters. OCM performed the following processing for data storage and Digital Coast provisioning purposes:

1. The topographic las files were converted from orthometric (NAVD88) heights to GRS80 ellipsoidal heights using Geoid09.

2. Points in class 29 (valid bathymetric data) were reclassified to class 11 (valid bathymetric data) using las2las software.
Process Date/Time: 2012-11-01 00:00:00
Process Contact: Office for Coastal Management (OCM)

Related Items

Item Type Relationship Type Title
Data Set (DS) Cross Reference 2011 USACE NCMP Topobathy Lidar DEM: Lake Superior (MI), Lake Erie & Lake Ontario (NY)

Catalog Details

Catalog Item ID: 50095
GUID: gov.noaa.nmfs.inport:50095
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: 2023-10-17 16:12+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