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Short Citation:
OCM Partners, 2022: 2009 US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) Topobathy Lidar: Apostle Islands, WI, https://www.fisheries.noaa.gov/inport/item/50077.

Item Identification

Title: 2009 US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) Topobathy Lidar: Apostle Islands, WI
Short Name: usace2009_gl_apostle_islands_m1392_metadata
Status: Completed
Publication Date: 2012-11
Abstract:

These files contain topographic and bathymetric lidar data collected by the Compact Hydrographic Airborne Rapid Total Survey (CHARTS) system along the coast

of Wisconsin. CHARTS integrates topographic and bathymetric lidar sensors, a digital camera and a hyperspectral scanner 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). The topographic lidar sensor has a pulse repetition rate of 9 kHz at 1064 nm (near-infrared wavelength).

The bathymetric lidar sensor has a pulse repetition rate of 1 kHz at 532 nm (green wavelength).

Native lidar data is 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 imported into GIS software for visualization and further analysis.

Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 (NAD83). Vertical positions

were referenced to the NAD83 ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID03 model was used to transform the vertical positions

from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88). The format of the files was LAS version 1.0.

The NOAA Office for Coastal Management received the data and converted the topo and hydro files from NAVD88 heights to ellipsoid heights using GEOID03.

These files were converted for data storage and Digital Coast provisioning purposes. The data are classified as:

1 - Unclassified

2 - Ground

11 - Bathymetry

Original contact information:

Contact Org: JALBTCX

Title: Data Production Manager

Phone: 228-252-1121

Email: shoals-info@sam.usace.army.mil

Purpose:

These data were collected as a part of the National Coastal Mapping Program (NCMP) to depict the elevations above and below the water line in the Wisconsin

coastal zone.

Notes:

10721

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/geoid18/1392/supplemental/2009_USACE_Great_Lakes_TopoBathy_Lidar_Apostle_Islands_Wisconsin.kmz

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None CHARTS
None JALBTCX
None SHOALS
None U.S. Army Corps of Engineers

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 2009
None August
None July

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
Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of USACE, JALBTCX, the Office for Coastal Management or its partners.

Data Set Credit: Acknowledgement of US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) would be appreciated in products derived from these data.

Support Roles

Data Steward

CC ID: 689464
Date Effective From: 2012-11
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: 689466
Date Effective From: 2012-11
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: 689467
Date Effective From: 2012-11
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: 689465
Date Effective From: 2012-11
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: 1132980
W° Bound: -90.8944749
E° Bound: -90.3411983
N° Bound: 47.1519069
S° Bound: 46.7496769

Extent Group 1 / Time Frame 1

CC ID: 1132979
Time Frame Type: Range
Start: 2009-07-19
End: 2009-08-02

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=1392

;

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: 742914
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=1392
Distributor:
File Name: Customized Download
Description:

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

Distribution 2

CC ID: 742915
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/1392/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 742917
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/1392/supplemental/2009_USACE_Great_Lakes_TopoBathy_Lidar_Apostle_Islands_Wisconsin.kmz
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: kmz
Description:

This graphic shows the lidar coverage for the Apostle Islands, Wisconsin in Lake Superior.

Activity Log

Activity Log 1

CC ID: 689490
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 689489
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: 718681
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 742916
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. | Quantitative Value: N/A | Quantitative Test Explanation: These data are not attributed.

Horizontal Positional Accuracy:

The data positions were obtained using post processed KGPS methods. The horizontal accuracy of the data is better than plus or minus 0.75 m.; Quantitative Value: 0.75 meters, Test that produced the value: 1 Sigma

Vertical Positional Accuracy:

The data positions were obtained using post processed KGPS methods. The vertical accuracy of the data is better

than plus or minus 0.20 m.

; Quantitative Value: 0.20 meters, Test that produced the value: 1 Sigma

Completeness Report:

Not Provided

Conceptual Consistency:

The data provided in this file were tested against ground truth data. At these locations the lidar data matched within 0.20 meters, and different

flight line data agreed within 0.20 meters.

Lineage

Process Steps

Process Step 1

CC ID: 1132975
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 9 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 chartsLAS module then converts all valid data from ellipsoid to orthometric heights based on

the NGS' GEOID03 model and exports topographic data as a series of LAS files with a single file per flightline per 5 km box and the bathymetric data

files contain all of the returns from the bathymetric sensor which includes returns both above and below the water.

Process Step 2

CC ID: 1132976
Description:

The NOAA Office for Coastal Management (OCM) received the topo files in LAS v1.1 format and the hydro files in ascii format. The files contained lidar

elevation and intensity measurements. The topo data were classified as 0 (never classified) and received in geographic coordinates (NAD83) and

vertically referenced to NAVD88 using the Geoid03 model. The vertical units of the data were meters. The hydro files were unclassified and received

in geographic coordinates (NAD83) and vertically referenced to NAVD88. OCM performed the following processing for data storage and Digital Coast

provisioning purposes:

1. Both topo and hydro files were filtered for elevation outliers.

2. The topo las files were converted from orthometric (NAVD88) heights to ellipsoidal heights using Geoid03.

3. The hydro ascii files were converted from orthometric (NAVD88) heights to ellipsoidal heights using Geoid03.

4. The hydro ascii files were converted from ascii format to las format and the points were reclassified from 0 to 11 (Bathymetry).

Process Date/Time: 2012-09-01 00:00:00

Process Step 3

CC ID: 1132977
Description:

The NOAA Office for Coastal Management (OCM) used MARS to classify this data set to include the following classifications:

1 - Unclassified

2 - Ground

11 - Bathymetry

Process Date/Time: 2012-10-01 00:00:00

Catalog Details

Catalog Item ID: 50077
GUID: gov.noaa.nmfs.inport:50077
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