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Short Citation:
OCM Partners, 2022: 2005 US Army Corps of Engineers (USACE) National Coastal Mapping Program Topo/Bathy Lidar: Delaware, Maryland, New Jersey, New York, North Carolina and Virginia, https://www.fisheries.noaa.gov/inport/item/50053.

Item Identification

Title: 2005 US Army Corps of Engineers (USACE) National Coastal Mapping Program Topo/Bathy Lidar: Delaware, Maryland, New Jersey, New York, North Carolina and Virginia
Short Name: usace2005_ec_m33_metadata
Status: Completed
Publication Date: 2006-11-14
Abstract:

The data contained in these files are hydrographic and topographic data collected by the SHOALS-1000T system

along the Delaware, Maryland, New Jersey, New York, North Carolina and Virginia coastline as part of the National

Coastal Mapping Program.

The lidar data for DE, MD, NJ and VA was collected from 20050824-20050908.

The lidar data for NY and NC was collected from 20051001-20051126.

Original contact information:

Contact Org: NOAA Office for Coastal Management

Phone: 843-740-1202

Email: coastal.info@noaa.gov

Purpose:

These data were collected as a part of the National Coastal Mapping Program to depict the elevations above

and below water for the Delaware, Maryland, New Jersey, New York, North Carolina and Virginia coastal zones.

Notes:

10697

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None August 2005
None November 2005
None October 2005
None September 2005

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 JALBTCX, NOAA, the Office for Coastal Management or it's partners.

Data Set Credit: Acknowledgement of the Joint Airborne Lidar Bathymetry Center of Expertise (JALBTCX) would be appreciated in any publications or derived products.

Support Roles

Data Steward

CC ID: 688564
Date Effective From: 2006-11-14
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: 688566
Date Effective From: 2006-11-14
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: 688567
Date Effective From: 2006-11-14
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: 688565
Date Effective From: 2006-11-14
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: 1135359
W° Bound: -78.55
E° Bound: -71.86
N° Bound: 41.07
S° Bound: 33.84

Extent Group 1 / Time Frame 1

CC ID: 1135358
Time Frame Type: Range
Start: 2005-08-24
End: 2005-11-26

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/ldart

;

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 it's limitations. Any conclusions drawn from analysis of this information

are not the responsibility of NOAA, the Office for Coastal Management, or JALBTCX.

Distribution Information

Distribution 1

CC ID: 742807
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=33
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: 742808
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/33/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 742810
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 742811
URL: https://coast.noaa.gov
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 688586
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 688585
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: 718657
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 742809
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Data Quality

Accuracy:

Data are not attributed. | Quantitative Value: N/A | Quantitative Test Explanation: These data are not attributed.

Horizontal Positional Accuracy:

FOR DE,MD,NJ,VA DATA:

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

than +/- 0.75m at 1 Sigma.

FOR NY,NC DATA:

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

than +/- 3.0 m at 2 Sigma.

Vertical Positional Accuracy:

FOR DE,MD NJ,VA DATA

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

than +/- 0.20m at 1 Sigma.

FOR NY,NC DATA

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

than +/- 0.30m at 2 Sigma.

Completeness Report:

These data covered the required survey area with minimal gaps in data coverage. The data postings are very

consistent with postings at about 1.3m density.

Conceptual Consistency:

Lidar data between different flight lines matched within 0.20 meters

Lineage

Sources

Shoreline Mapping

CC ID: 1135353
Extent Type: Range
Extent Start Date/Time: 2005-08-24
Extent End Date/Time: 2005-11-26
Source Contribution:

This is an xyz dataset collected and provided by CESAM-OP-J, JALBTCX.

| Source Geospatial Form: globe | Type of Source Media: disc

Process Steps

Process Step 1

CC ID: 1135354
Description:

FOR DE,MD,NJ,VA DATA:

These data were collected using a SHOALS-1000T system. It is owned and operated by Fugro Pelagos performing

contract survey services for the US Army Corps of Engineers. The system collects topographic lidar data at 10kHz and

hydrographic data at 1kHz. The system also collects RGB imagery at 1Hz. Aircraft position, velocity and acceleration

information are collected through a combination of Novatel and POS A/V equipment. Raw data are collected and transferred

to the office for downloading and processing in SHOALS GCS software. The data were collected and processed in geographic

coordinates and ellipsoid heights. The positions are provided relative to NAD83 in decimal degrees of longitude and latitude.

The heights were converted from ellipsoid to geoid heights (NAVD88) using NGS' Geoid03 model file "g2003u08.bin" with the

results in meters. GPS data are processed using POSPac software and the results are combined with the lidar data to produce

3-D positions for each lidar shot. These data are edited using Fledermaus software where anomalous data are removed from

the dataset. The edited data are unloaded from SHOALS GCS, converted from ellipsoid to orthometric heights, based on the

GEOID03 model, and split into geographic tiles covering approximately 5km each. The process date for this data set is

20060406, which is listed below as the process date for this process step.

FOR NY,NC DATA:

Acquisition

Data were acquired using a SHOALS-1000T. Sensor orientation was measured using a POS AV 410, while images were acquired at 1Hz

using a Duncantech DT4000 digital camera. Prior to survey, PDOP was checked and missions planned to avoid PDOP greater than 3.5.

During survey, the plane was always within 30km of a GPS ground control point, to provide a good quality position solution.

Final positions were determined using a post-processed inertially aided Kinematic GPS (KGPS) solution. GPS ground control

data were acquired at 1Hz.

Data received by the airborne system were continually monitored for data quality during acquisition operations.

Display windows showed coverage and information about the system status. In addition, center waveforms at 5Hz were shown.

All of this information allowed the airborne operator to assess the quality of data being collected.

Data were processed in the field to verify coverage and data quality. Data were processed using the SHOALS Ground Control

System (GCS). The GCS includes links to Applanix POSPac software for GPS and inertial processing, and IVS Fledermaus

software for data visualization, 3D editing and tie-line analysis. Data were processed in NAD83 horizontal and vertical

datum. Data were later converted to the NAVD88 vertical datum using the GEOID03 model. Fugro in-house utilities were used

to extract XYZ data from the native LIDAR files and split the data in to pre-defined boxes, each covering approximately

5km of shoreline. ASCII files include Longitude Latitude Elevation Date Time Intensity (Topo) or Depth Confidence (Hydro).

The process date for this data set is 20060422.

Process Date/Time: 2006-04-06 00:00:00

Process Step 2

CC ID: 1135355
Description:

The NOAA Office for Coastal Management (OCM) received files in ascii format. The files contained lidar intensity and elevation

measurements. OCM performed the following processing on the data to make it available within the Lidar Data Retrieval

Tool (LDART):

1. Each hydro/topo last return ascii file was converted to las files. Default values for which there is no corresponding

input were assigned as follows for each las elevation data record: intensity = 0, retn = 1, nret = 1, class = 0

2. The las files were sorted by latitude and the las header fields were updated.

3. The data were converted to ellipsoid.

Process Date/Time: 2006-08-01 00:00:00

Process Step 3

CC ID: 1135356
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: 50053
GUID: gov.noaa.nmfs.inport:50053
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