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Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
URLs
Activity Log
Data Quality
Lineage
Related Items
Catalog Details

Summary

Short Citation
OCM Partners, 2024: 2012 USACE NCMP Topobathy Lidar DEM: Lake Michigan (MI, WI), https://www.fisheries.noaa.gov/inport/item/64407.
Full Citation Examples

Abstract

These files contain rasterized topographic elevations generated from topographic lidar data classified as ground. These data were data collected with a RIEGL VQ-480 airborne lidar system along the Lake Michigan shoreline. Data coverage generally extends along the shoreline 500 meters onshore, to 1000 meters offshore from the waterline. The VQ-480 sensor has a pulse repetition rate of 150 kHz at near infrared laser wavelength. Native lidar data are not generally in a format accessible to most Geographical 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 exported to standard formats and imported into GIS software for visualization and further analysis. Horizontal positions, provided in geographic coordinates in meters, are referenced to the NAD83 (2011) Epoch 2010 datum. Vertical elevations in meters are also referenced to IGLD85.

Distribution Information

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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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

-87.9458693° W, -84.704474° E, 46.1156698822° N, 41.753854° S

Time Frame 1
2012-09-02
Time Frame 2
2012-09-03
Time Frame 3
2012-09-07
Time Frame 4
2012-09-08
Time Frame 5
2012-09-09
Time Frame 6
2012-09-10
Time Frame 7
2012-09-12
Time Frame 8
2012-09-13
Time Frame 9
2012-09-14
Time Frame 10
2012-09-23
Time Frame 11
2012-09-25
Time Frame 12
2012-09-26
Time Frame 13
2012-09-27
Time Frame 14
2012-09-28
Time Frame 15
2012-09-29
Time Frame 16
2012-10-01
Time Frame 17
2012-10-02
Time Frame 18
2012-10-03
Time Frame 19
2012-10-06
Time Frame 20
2012-10-15
Time Frame 21
2012-10-16
Time Frame 22
2012-10-17
Time Frame 23
2012-10-18
Time Frame 24
2012-10-19
Time Frame 25
2013-11-05
Time Frame 26
2013-11-06
Time Frame 27
2013-11-11
Time Frame 28
2013-11-18
Time Frame 29
2013-11-26

Item Identification

Title: 2012 USACE NCMP Topobathy Lidar DEM: Lake Michigan (MI, WI)
Status: Completed
Abstract:

These files contain rasterized topographic elevations generated from topographic lidar data classified as ground. These data were data collected with a RIEGL VQ-480 airborne lidar system along the Lake Michigan shoreline. Data coverage generally extends along the shoreline 500 meters onshore, to 1000 meters offshore from the waterline. The VQ-480 sensor has a pulse repetition rate of 150 kHz at near infrared laser wavelength. Native lidar data are not generally in a format accessible to most Geographical 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 exported to standard formats and imported into GIS software for visualization and further analysis. Horizontal positions, provided in geographic coordinates in meters, are referenced to the NAD83 (2011) Epoch 2010 datum. Vertical elevations in meters are also referenced to IGLD85.

Purpose:

These data were collected as a part of the NCMP to depict the bare earth elevations above water in the Michigan and Wisconsin coastal zone.

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation

Spatial Keywords

Thesaurus Keyword
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 > WISCONSIN

Instrument Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Instrument Keywords
LIDAR > Light Detection and Ranging

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: Model (digital)
Entity Attribute Detail Citation:

none

Distribution Liability:

Although these data have been processed successfully on a computer system at the US Army Corps of Engineers, no warranty expressed or implied is made by the US Army Corps of Engineers regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the US Army Corps of Engineers in the use of these data. Any conclusions drawn from the analysis of this information are not the responsibility of USACE, JALBTCX, NOAA, the Office for Coastal Management or its partners.

Data Set Credit: USACE JALBTCX

Support Roles

Data Steward

CC ID: 1055737
Date Effective From: 2021-03-22
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: 1055739
Date Effective From: 2021-03-22
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: 1055740
Date Effective From: 2021-03-22
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: 1055738
Date Effective From: 2021-03-22
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: 1294453
W° Bound: -87.9458693
E° Bound: -84.704474
N° Bound: 46.1156698822
S° Bound: 41.753854

Extent Group 1 / Time Frame 1

CC ID: 1294424
Time Frame Type: Discrete
Start: 2012-09-02

Extent Group 1 / Time Frame 2

CC ID: 1294425
Time Frame Type: Discrete
Start: 2012-09-03

Extent Group 1 / Time Frame 3

CC ID: 1294426
Time Frame Type: Discrete
Start: 2012-09-07

Extent Group 1 / Time Frame 4

CC ID: 1294427
Time Frame Type: Discrete
Start: 2012-09-08

Extent Group 1 / Time Frame 5

CC ID: 1294428
Time Frame Type: Discrete
Start: 2012-09-09

Extent Group 1 / Time Frame 6

CC ID: 1294429
Time Frame Type: Discrete
Start: 2012-09-10

Extent Group 1 / Time Frame 7

CC ID: 1294430
Time Frame Type: Discrete
Start: 2012-09-12

Extent Group 1 / Time Frame 8

CC ID: 1294431
Time Frame Type: Discrete
Start: 2012-09-13

Extent Group 1 / Time Frame 9

CC ID: 1294432
Time Frame Type: Discrete
Start: 2012-09-14

Extent Group 1 / Time Frame 10

CC ID: 1294433
Time Frame Type: Discrete
Start: 2012-09-23

Extent Group 1 / Time Frame 11

CC ID: 1294434
Time Frame Type: Discrete
Start: 2012-09-25

Extent Group 1 / Time Frame 12

CC ID: 1294435
Time Frame Type: Discrete
Start: 2012-09-26

Extent Group 1 / Time Frame 13

CC ID: 1294436
Time Frame Type: Discrete
Start: 2012-09-27

Extent Group 1 / Time Frame 14

CC ID: 1294437
Time Frame Type: Discrete
Start: 2012-09-28

Extent Group 1 / Time Frame 15

CC ID: 1294438
Time Frame Type: Discrete
Start: 2012-09-29

Extent Group 1 / Time Frame 16

CC ID: 1294439
Time Frame Type: Discrete
Start: 2012-10-01

Extent Group 1 / Time Frame 17

CC ID: 1294440
Time Frame Type: Discrete
Start: 2012-10-02

Extent Group 1 / Time Frame 18

CC ID: 1294441
Time Frame Type: Discrete
Start: 2012-10-03

Extent Group 1 / Time Frame 19

CC ID: 1294442
Time Frame Type: Discrete
Start: 2012-10-06

Extent Group 1 / Time Frame 20

CC ID: 1294443
Time Frame Type: Discrete
Start: 2012-10-15

Extent Group 1 / Time Frame 21

CC ID: 1294444
Time Frame Type: Discrete
Start: 2012-10-16

Extent Group 1 / Time Frame 22

CC ID: 1294445
Time Frame Type: Discrete
Start: 2012-10-17

Extent Group 1 / Time Frame 23

CC ID: 1294446
Time Frame Type: Discrete
Start: 2012-10-18

Extent Group 1 / Time Frame 24

CC ID: 1294447
Time Frame Type: Discrete
Start: 2012-10-19

Extent Group 1 / Time Frame 25

CC ID: 1294448
Time Frame Type: Discrete
Start: 2013-11-05

Extent Group 1 / Time Frame 26

CC ID: 1294449
Time Frame Type: Discrete
Start: 2013-11-06

Extent Group 1 / Time Frame 27

CC ID: 1294450
Time Frame Type: Discrete
Start: 2013-11-11

Extent Group 1 / Time Frame 28

CC ID: 1294451
Time Frame Type: Discrete
Start: 2013-11-18

Extent Group 1 / Time Frame 29

CC ID: 1294452
Time Frame Type: Discrete
Start: 2013-11-26

Spatial Information

Spatial Representation

Representations Used

Grid: Yes

Reference Systems

Reference System 1

CC ID: 1294421

Coordinate Reference System

CRS Type: Vertical
EPSG Code: EPSG:5609
EPSG Name: IGLD 1985 height
See Full Coordinate Reference System Information

Reference System 2

CC ID: 1294422

Coordinate Reference System

CRS Type: Geographic 2D
EPSG Code: EPSG:6318
EPSG Name: NAD83(2011)
See Full Coordinate Reference System Information

Access Information

Security Class: Unclassified
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: 1055741
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9268/details/9268
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2021-03-22 - Present)
File Name: Customized Download
Description:

Create custom data files by choosing data area, file format, datum, etc.

File Type (Deprecated): Zip
Compression: Zip

Distribution 2

CC ID: 1055742
Download URL: https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/USACE_Lake_Mich_MI_WI_DEM_2012_9268/index.html
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2021-03-22 - Present)
File Name: Bulk Download
Description:

Simple download of data files.

File Type (Deprecated): GeoTIFF
Distribution Format: GeoTIFF

URLs

URL 1

CC ID: 1055743
URL: https://coast.noaa.gov/dataviewer
Name: Data Access Viewer
URL Type:
Online Resource
Description:

Link to the Data Access Viewer.

URL 2

CC ID: 1055744
URL: https://coast.noaa.gov
Name: NOAA OCM
URL Type:
Online Resource
Description:

Link to the NOAA Office for Coastal Management (OCM) website.

Activity Log

Activity Log 1

CC ID: 1055747
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 1055746
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: 1055748
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 1055749
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Data Quality

Horizontal Positional Accuracy:

The data point positions were obtained using post processed KGPS methods. The horizontal accuracy of the data is better than +/- 0.50 m RMSE.

Vertical Positional Accuracy:

The data point positions were obtained using post processed KGPS methods. The vertical accuracy of the data is better than +/- 0.15 m RMSE.

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 point data is unbiased and within +/- 15 cm (RMSE) in flat terrain and within +/-30 cm (RMSE) in hilly terrain

Lineage

Lineage Statement:

Data collected and processed by USACE JALBTCX, Data sent to NOAA OCM for distribution on the NOAA Digital Coast.

Sources

USACE JALBCTX

CC ID: 1294416

Process Steps

Process Step 1

CC ID: 1294417
Description:

These data were collected using the RIEGL VQ-480 lidar system, operated by Fugro Pelagos through contract. The system collects topographic lidar data at maximum pulse rate of 150 kHz in a wavelength near infrared. Aircraft position, velocity and acceleration information are collected a POS AV 510 equipment. All logged raw data were transferred to the office and processed in RiPROCESS software. Aircraft position data are processed using POSPac software and the results combined with the lidar data to produce 3-D positions for each lidar shot. Upon processing and export to LAS format, QA/QC is performed with Fledermaus and FPI Workbench tools. 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 Step 2

CC ID: 1294418
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 V12 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. The resulting LAS file is then combined with valid bathymetric data (29). 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 algorithm’s “ground” surface instead of manually reclassifying those points. The final classification results are comprised of individual lidar points with classifications of ground (2), unclassified (1), water (9), and valid bathymetric data (29).

Process Step 3

CC ID: 1294419
Description:

Data classified as ground (2) and valid bathymetric data (29) in the las files are converted to a grid by generating a triangulated irregular network (TIN) and then extracting the grid node elevations from the TIN surface. The origin point of the grid is located at a horizontal position whose value is evenly divisible by the 1m grid resolution such that rasters from subsequent surveys have common cell boundaries. JALBTCX uses Quick Terrain Modeler V7.1.5 Beta to perform this operation utilizing the following parameters;” Legacy Triangulation”, and “Tiling Settings Snap to Grid (Expand)." The grid is exported from Quick Terrain Modeler as an ESRI ASCII Z grid file. Utilizing an in-house python script within ESRI ArcMap V10.0, the ASCII Z grid file is converted to a tiff-format raster file whose projection is defined as “The North American Datum of 1983.” The raster is then multiplied against a corresponding 1m Grid mask raster, a mask image produced from JALBTCX’s 1m Grid, in ESRI’s Raster Calculator to remove interpolated areas where data does not exist.

Process Step 4

CC ID: 1294420
Description:

The NOAA Office for Coastal Management (OCM) received 140 1 meter bare earth raster files in GeoTiff format from USACE JALBTCX along the Michigan and Wisconsin coastlines. The data were in geographic, NAD83 (2011) coordinates and IGLD85 elevations. OCM assigned the appropriate EPSG codes (Horiz - 6318, Vert - 5609) and copied the raster files to https for Digital Coast storage and provisioning purposes.

Process Date/Time: 2021-03-18 00:00:00
Process Contact: Office for Coastal Management (OCM)

Related Items

Item Type Relationship Type Title
Data Set (DS) Cross Reference 2012 USACE Great Lakes Topobathy Lidar: Lake Michigan

Catalog Details

Catalog Item ID: 64407
GUID: gov.noaa.nmfs.inport:64407
Metadata Record Created By: Rebecca Mataosky
Metadata Record Created: 2021-03-19 15:57+0000
Metadata Record Last Modified By: Kirk Waters
Metadata Record Last Modified: 2024-01-10 19:14+0000
Metadata Record Published: 2024-01-10
Owner Org: OCMP
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2021-03-26
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2022-03-26