Slide Menu
Search Help Show/Hide Menu
Short Citation:
OCM Partners, 2023: 2011-2012 USACE NCMP Topobathy Lidar: Lake Erie (MI, NY, OH, PA), https://www.fisheries.noaa.gov/inport/item/49734.

Item Identification

Title: 2011-2012 USACE NCMP Topobathy Lidar: Lake Erie (MI, NY, OH, PA)
Short Name: gl2012_usace_lake_erie_mi_ny_oh_pa_m3662_metadata
Status: Completed
Creation Date: 2012
Publication Date: 2014-07-22
Abstract:

This project was delivered to the Coastal Services Center for use and dissemination on the Digital Coast. These files contain classified topographic and bathymetric lidar data as unclassified valid topographic data (1), Valid bathymetric data (reclassed to 11) and valid topographic data classified as ground (2). Classes 1 and 2 are defined in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards. These data were collected by the Coastal Zone Mapping and Imaging Lidar (CZMIL) system. CZMIL integrates a lidar sensor with topographic and bathymetric capabilities, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. Native lidar data is not generally in a format accessible to most Geographic Information Systems (GIS). Specialized USACE 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.

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 water along the Lake Erie shoreline.

Notes:

10379

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/geoid18/3662/supplemental/gl2011_2012_usace_lake_erie_mi_ny_oh_pa_m3662.kmz

A footprint for the Bathymetric points only is available: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/3662/supplemental/gl2011_2012_usace_lake_erie_mi_ny_oh_pa_m3662_bathypoints.kmz

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM)
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > SPECTRAL/ENGINEERING > LIDAR
ISO 19115 Topic Category
elevation
UNCONTROLLED
None Surface
None Terrain

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 2012
None August
None July
None June

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA
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 > MICHIGAN
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW YORK
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OHIO
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > PENNSYLVANIA

Platform Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Platform Keywords
Airplane > Airplane

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 LAZ format (Classes 1,2,11)

Entity Attribute Detail Citation:

none

Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of USACE, JALBTCX, NOAA, the Coastal Services Center or its partners.

Support Roles

Data Steward

CC ID: 674652
Date Effective From: 2014-07-22
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: 674654
Date Effective From: 2014-07-22
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: 674655
Date Effective From: 2014-07-22
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

Point of Contact

CC ID: 674653
Date Effective From: 2014-07-22
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: 1135700
W° Bound: -83.4889
E° Bound: -79.12087
N° Bound: 42.58467
S° Bound: 41.365884

Extent Group 1 / Time Frame 1

CC ID: 1135699
Time Frame Type: Range
Start: 2011-07-31
End: 2012-10-18

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=3662;

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: 741031
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=3662
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2014-07-22 - Present)
File Name: Customized Download
Description:

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

File Type: Zip

Distribution 2

CC ID: 741032
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/3662/index.html
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2014-07-22 - Present)
File Name: Bulk Download
Description:

Simple download of data files.

File Type: LAZ

URLs

URL 1

CC ID: 741034
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: 741035
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: 741036
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/3662/supplemental/usace2012_erie_m3662.kmz
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: kmz
Description:

This graphic shows the coverage of the 2011-2012 USACE Lake Erie lidar.

URL 4

CC ID: 1111425
URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9434/details/9434
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: 674691
Activity Date/Time: 2016-09-12
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 674690
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: 718293
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 741033
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Data Quality

Accuracy:

These data are not attributed.

Horizontal Positional Accuracy:

Topo data - Compiled to meet 1 m @ 95% confidence level. Bathy data - compiled to meet 3.5 + 0.05*d meters @ 95% confidence level (d is depth).

Vertical Positional Accuracy:

Topo data - 19.6 cm @ 95% confidence level (10 cm RMSE). Bathy shallow FOV data - SQRT((0.25^2)+((0.0075d)^2)) meters at @ 95% confidence level. Bathy deep FOV data - SQRT((0.30^2)+((0.013d)^2)) meters @ 95% confidence level (d is depth).

Completeness Report:

This data set covers the spatial extent of topographic lidar data obtained during this survey.

Conceptual Consistency:

During inspection and QC of the lidar point cloud, flightline to flightline elevation differences met the CZMIL sensor specifications.

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: 1135694
Contact Role Type: Originator
Contact Type: Organization
Contact Name: USACE JALBTCX

Process Steps

Process Step 1

CC ID: 1135695
Description:

These data were collected using the CZMIL system. It is owned and operated by the U.S. Army Corps of Engineers (USACE). The system collects lidar data at 20 kHz and RGB imagery at 2 Hz. 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 510 equipment. All raw data streams are transferred to the office for downloading and processing in CZMIL's Hydro Fusion 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. NOAA's VDatum software then converts all valid data from ellipsoid to orthometric heights based on the NGS' GEOID12A model and exports valid lidar data as a series of unclassified LAS files.

Process Date/Time: 2013-06-08 00:00:00

Process Step 2

CC ID: 1135696
Description:

LAS files are imported into GeoCue V2012.1.27.7, 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, A customized classification macro, built upon the TerraScan V13 module within Microstation V8i, classifies valid topographic data as ground points (2), valid bathymetric data as bathy (29), 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 classifications of ground (2) or unclassified (1). They are partitioned into a series of 5km or quarter quad 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), 29 (valid bathymetric data)

Process Date/Time: 2013-11-29 00:00:00

Process Step 3

CC ID: 1135697
Description:

The NOAA Coastal Services Center (CSC) received the topographic/bathymetric files in LAS format from USACE. The files contained lidar easting, northing, elevation, intensity, return number, etc. Some GPS times in the LAS files appeared to be corrupt. The data was received in Geographic Coordinates (decimal degrees). The vertical coordinates were referenced to NAVD88 in meters using the Geoid12a model. CSC performed the following processing for data storage and Digital Coast provisioning purposes:

1. This project is the combination of four separate directories meeting the same specifications. The entire American portion of Lake Erie was delivered to the Digital Coast. There are areas without bathymetry as they do not span the entirety of the project.

2. LAS files were reclassified from Class 29 points (usace provided bathymetry) to Class 11 (CSC stored bathymetry) as this fit the CSC DAV classification scheme.

Process Date/Time: 2014-07-22 00:00:00
Process Contact: Office for Coastal Management (OCM)

Related Items

Item Type Relationship Type Title
Data Set (DS) Cross Reference 2012 USACE NCMP Topobathy Lidar DEM: Lake Erie (MI, NY, OH, PA)

Catalog Details

Catalog Item ID: 49734
GUID: gov.noaa.nmfs.inport:49734
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-15 15:21+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-02-21 18:41+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