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Short Citation:
OCM Partners, 2023: 2014 Lidar: St. Charles Parish, LA, https://www.fisheries.noaa.gov/inport/item/49767.

Item Identification

Title: 2014 Lidar: St. Charles Parish, LA
Short Name: la2014_st_charles_m6351_metadata
Status: Completed
Publication Date: 2017-08-12
Abstract:

Under this task order, Precision Aerial Reconnaissance, LLC was contracted to provide acquisition and processing of airborne Lidar over St. Charles Parish, Louisiana. Airborne Lidar was captured to provide digital elevation models, lidar intensity imagery and contours for the project area. The NOAA Office for Coastal Management received the data for processing to the Digital Coast. This metadata record describes the lidar point data. In addition to the lidar point data, bare earth Digital Elevation Models (DEMs), at a 2 ft grid spacing, created from the lidar point data are also available. These data are available for download here: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6353 The DEM products have not been reviewed by the NOAA Office for Coastal Management (OCM) and any conclusions drawn from the analysis of this information are not the responsibility of NOAA, OCM or its partners.

Original contact information:

Contact Name: Luis Martinez

Contact Org: St Charles Parish, LA

Title: GIS Coordinator

Phone: 504.235.1902

Email: lmartinez@stcharlesgov.net

Purpose:

This survey was conducted in order to obtain measurements of the bare ground surface as discrete lidar points and derivative elevation products as well as lidar intensity and orthophoto imagery.

Notes:

10411

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None airborne
None St. Charles Parish

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: None Planned
Data Presentation Form: Map (digital)
Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of Precision Aerial Reconnaissance, St. Charles Parish, NOAA, the NOAA Office for Coastal Management (OCM) or its partners.

Support Roles

Data Steward

CC ID: 676228
Date Effective From: 2017-08-12
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: 676230
Date Effective From: 2017-08-12
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: 676231
Date Effective From: 2017-08-12
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: 676229
Date Effective From: 2017-08-12
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: 1140092
W° Bound: -90.549763
E° Bound: -90.169503
N° Bound: 30.081556
S° Bound: 29.696955

Extent Group 1 / Time Frame 1

CC ID: 1140091
Time Frame Type: Range
Start: 2014-02-15
End: 2014-03-30

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Access Information

Security Class: Unclassified
Security Classification System:

None

Security Handling Description:

No security restrictions

Data Access Procedure:

This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6351;

Data Access Constraints:

None

Data Use Constraints:

None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations. Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data.

Distribution Information

Distribution 1

CC ID: 741227
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6351
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: 741228
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/6351/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 741230
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 741231
URL: https://coast.noaa.gov/dataregistry
URL Type:
Online Resource

URL 3

CC ID: 741232
URL: https://coast.noaa.gov
URL Type:
Online Resource

URL 4

CC ID: 741233
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/6351/supplemental/la2014_st_charles_m6351.kmz
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: kmz
Description:

This graphic shows the lidar footprint for the 2014 St. Charles Parish, LA project.

Activity Log

Activity Log 1

CC ID: 676247
Activity Date/Time: 2017-08-01
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 676246
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: 718334
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 741229
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Data Quality

Accuracy:

Products comply with FEMA specifications for Aerial Mapping and Surveying to Support 2-foot contours.

Vertical Positional Accuracy:

Confidence interval on the estimate of RMSEz at 95% probability; Quantitative Value: 0.097 meters, Test that produced the value: Tested 0.32 feet (0.097 meters) fundamental vertical accuracy (FVA) at 95 percent confidence level in open terrain.

Completeness Report:

Complete dataset

Conceptual Consistency:

Products have been derived from airborne Lidar data

Lineage

Sources

St. Charles Parish, Parish-wide Ortho and Lidar

CC ID: 1140085
Extent Type: Discrete
Extent Start Date/Time: 2014-02-15
Source Contribution:

Airborne Lidar and processing to seamless tiles | Source Geospatial Form: vector digital data | Type of Source Media: digital data files

Process Steps

Process Step 1

CC ID: 1140086
Description:

All products were reviewed and approved by ASPRS Certified Photogrammetrist, Ken Comeaux.

Process Date/Time: 2014-06-19 00:00:00

Process Step 2

CC ID: 1140087
Description:

DATA ACQUISITION: - Ground Control Survey: All lidar control and check points were collected by Precision Aerial Reconnaissance field crews by means of Real time VRS with a Trimble R10 receiver with internal antennas and using a TSC3 data collector. Trimble Business Center (TBC) software was used to process collected field data against a network of established NGS control. Each control or check point was occupied for a duration of at least 3 minutes. LiDAR check points were collected in the following ground classification categories: Bare Ground, Marsh, Tall Grass and Urban. In addition, a sampling of vertical LiDAR control points was collected in areas of Bare Ground. The LiDAR check and control points were also collected using VRS-RTK techniques. - LiDAR Acquisition: The LiDAR data was collected using a Leica ALS70CM sensor between 15-Feb-2014 and 30-Mar-2014 at an altitude of 4,500 feet AMT with a planned average point density of 9.1 points per square meter to support the generation of 2' contours meeting FEMA specifications for Aerial Mapping and Surveying to Support 2-foot contours. The LiDAR collection was supported by ground base stations.

Process Date/Time: 2014-06-19 00:00:00

Process Step 3

CC ID: 1140088
Description:

LIDAR PROCESSING: - LiDAR Calibration: Initial processing of the GPS and IMU data was performed using Leica IPAS TC. The SOL was generated and Leica ALS Post Processor software was used to generate georeferenced laser returns which were then processed in strip form allowing for the QC of the overlap between strips (lines). The data from each line were combined and automated classification routines run to determine the initial surface model. This initial surface model was then verified to the LiDAR test points. - LiDAR Classification: The calibrated LiDAR data was run through automated classification routines and then manually checked. The data was classified into the following classes: Unclassified (1), Ground (2), Medium Vegetation (4), Low point and noise (7), Water (9) and Overlap (12).

Process Date/Time: 2014-06-19 00:00:00

Process Step 4

CC ID: 1140089
Description:

The NOAA Office for Coastal Management (OCM) received 770 files in las 1.2 format. The files contained lidar intensity and elevation measurements for the St. Charles Parish, LA project area. The data were in LA State Plane, Zone 1702 (NAD83 2011) coordinates and in NAVD88 elevations in feet. OCM performed the following processing on the data for Digital Coast storage and provisioning purposes:

1. The LAStools software scripts lasinfo and lasvalidate were run on the las files to check for errors.

2. Internal OCM scripts were run to convert the files from LA State Plane Zone 1702 coordinates to geographic coordinates and to convert from NAVD88 elevations in feet to ellipsoid elevations in meters, using Geoid12A.

3. Internal OCM scripts were run on the las files to assign the geokeys, to sort the data by gps time and zip the data to database and to http.

Process Date/Time: 2017-07-28 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity Airborne Lidar data

Catalog Details

Catalog Item ID: 49767
GUID: gov.noaa.nmfs.inport:49767
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-15 15:22+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