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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) Bathymetric Lidar: Southern California, https://www.fisheries.noaa.gov/inport/item/50075.

Item Identification

Title: 2009 US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) Bathymetric Lidar: Southern California
Short Name: usace2009_ca_socal_bathy_m1178_metadata
Status: Completed
Publication Date: 2012-05
Abstract:

These files contain bathymetric lidar data collected by the SHOALS-1000T system along the coast of California. Data coverage generally extends along the

coastline from the waterline offshore 1,000 meters or to laser extinction. Exclusively in areas where Fugro Pelagos acquired or planned to acquire

multibeam sonar data by December 31, 2009, data coverage extends from the shoreline either to the 10-m contour, the 20-m contour or the landward extent

of the multibeam data plus an additional 100 m offshore. The SHOALS system 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 are

referenced to the NAD83 ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID09 model is used to transform the vertical positions

from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88). Both ellipsoidal and orthometric heights were

provided to NOAA OCM. For data storage and Digital Coast provisioning, NOAA OCM processed the ellipsoidal height data.

Original contact information:

Contact Org: JALBTCX

Title: Data Production Manager

Phone: 228-252-1111

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

California coastal zone.

Notes:

10719

Supplemental Information:

High water turbidity in the survey area hindered the acquisition of bathymetric data in boxes 23,24,25,31,33,34,35 and 36 and resulted in incomplete coverage.

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

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/1178/supplemental/2009_USACE_JALBTCX_Southern_Calif_Bathy_Lidar.KMZ

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None 006
None 014
None ASCII XYZ
None DOD/US Army/USACE/SAM/Mobile
None JALBTCX
None oceans
None SHOALS
None U.S. Army Corps of Engineers

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 2009
None October
None September

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: 689357
Date Effective From: 2012-05
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: 689359
Date Effective From: 2012-05
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: 689360
Date Effective From: 2012-05
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: 689358
Date Effective From: 2012-05
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: 1132869
W° Bound: -121.400085
E° Bound: -117.112676
N° Bound: 35.834105
S° Bound: 32.534234

Extent Group 1 / Time Frame 1

CC ID: 1132868
Time Frame Type: Range
Start: 2009-09-28
End: 2009-10-28

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=1178

This data set is dynamically generated based on user-specified parameters.

;

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.

Distribution Information

Distribution 1

CC ID: 742906
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=1178
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: 742907
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/1178/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 742909
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/1178/supplemental/2009_USACE_JALBTCX_Southern_Calif_Bathy_Lidar.KMZ
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: kmz
Description:

This kmz file shows the extent of coverage for the 2009 USACE JALBTCX Southern California Bathy Lidar data set.

Activity Log

Activity Log 1

CC ID: 689385
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 689384
Activity Date/Time: 2017-11-14
Description:

Converted from FGDC Content Standard 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: 718679
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 742908
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Technical Environment

Description:

Microsoft Windows Vista Version 6.0 (Build 6001) Service Pack 1; ESRI ArcCatalog 9.3.0.1770

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 +/- 1.5 m.; Quantitative Value: 1.5 meters, Test that produced the value: RMSE (m)

Vertical Positional Accuracy:

The data positions were obtained using post processed KGPS methods. The vertical accuracy of the data is better than +/- 0.15 m.; Quantitative Value: 0.15 meters, Test that produced the value: RMSE (m)

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 0.30 meters (RMSE 95% confidence level)

Lineage

Process Steps

Process Step 1

CC ID: 1132864
Description:

These data were collected using the SHOALS-1000T system. It is owned by Fugro Pelagos Inc. and operated through contract. The system collects bathymetric

lidar data at 1kHz and RGB imagery at 1Hz. A CASI-2 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 package Fledermaus, anomalous data are flagged as invalid.

FPI Workbench then converts all valid data from ellipsoid to orthometric heights based on the NGS' GEOID09 model and exports data as a series of

bathymetry (H) ASCII files. The bathymetry files contain all of the returns from the bathymetric sensor which include returns both above and below the water.

Process Date/Time: 2009-01-01 00:00:00

Process Step 2

CC ID: 1132865
Description:

The NOAA Office for Coastal Management (OCM) received ASCII formatted data in geographic coordinates and ellipsoid heights in meters. The files

contained lidar intensity and elevation measurements. OCM performed the following processing for data storage and Digital Coast provisioning purposes:

1. The data were converted from ASCII format to LAS format.

2. The data were classified as 11 (Bathymetry).

3. The processed las files were zipped.

Process Date/Time: 2012-05-01 00:00:00

Process Step 3

CC ID: 1132866
Description:

Times had originally been stored as POSIX seconds when converted to LAS. This was switched to adjusted GPS time (GPS seconds - 1e9) to conform to the LAS 1.2 standard.

Process Date/Time: 2014-01-09 00:00:00

Catalog Details

Catalog Item ID: 50075
GUID: gov.noaa.nmfs.inport:50075
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