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Data Set Info
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Access Info
Distribution Info
URLs
Activity Log
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Lineage
Child Items
Related Items
Catalog Details

Summary

Browse Graphic

Short Citation
OCM Partners, 2024: 2014 Lidar DEM: St. Charles Parish (LA), https://www.fisheries.noaa.gov/inport/item/49432.
Full Citation Examples

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 2 ft bare earth raster digital elevation models (DEMs) created from the lidar point data.

In addition to the raster DEM data, the lidar point data are also available. These data are available for download here: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6351 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

Distribution Information

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

  • GeoTIFF

    Simple download of data files.

Access Constraints:

None

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aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions.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

Controlled Theme Keywords

COASTAL ELEVATION, elevation, TOPOGRAPHICAL RELIEF MAPS

Child Items

Type Title
Entity Airborne Lidar data

Contact Information

Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov

Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov

Extents

Geographic Area 1

-90.549763° W, -90.169503° E, 30.081556° N, 29.696955° S

Time Frame 1
2014-02-15 - 2014-03-30

Item Identification

Title: 2014 Lidar DEM: St. Charles Parish (LA)
Short Name: la2014_st_charles_dem_m6353_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 2 ft bare earth raster digital elevation models (DEMs) created from the lidar point data.

In addition to the raster DEM data, the lidar point data are also available. These data are available for download here: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6351 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:

12099

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > TOPOGRAPHICAL RELIEF MAPS
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
ISO 19115 Topic Category
elevation
UNCONTROLLED
None airborne
None DEM
None grid
None St. Charles Parish

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > LOUISIANA

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: 662367
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: 662369
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: 662370
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: 662368
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: 1289925
W° Bound: -90.549763
E° Bound: -90.169503
N° Bound: 30.081556
S° Bound: 29.696955

Extent Group 1 / Time Frame 1

CC ID: 1289924
Time Frame Type: Range
Start: 2014-02-15
End: 2014-03-30

Spatial Information

Spatial Resolution

Horizontal Distance: 2.0 Foot

Spatial Representation

Representations Used

Grid: Yes

Reference Systems

Reference System 1

CC ID: 1289922

Coordinate Reference System

CRS Type: Vertical
EPSG Code: EPSG:6360
EPSG Name: NAVD88 height (ftUS)
See Full Coordinate Reference System Information

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=6353;

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: 720866
Start Date: 2017-08-12
End Date: Present
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6353
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2017-08-12 - Present)
File Name: Customized Download
Description:

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

File Type (Deprecated): Zip

Distribution 2

CC ID: 720867
Start Date: 2017-08-12
End Date: Present
Download URL: https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/LA_St_Charles_DEM_2014_6353/index.html
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2017-08-12 - Present)
File Name: Bulk Download
Description:

Simple download of data files.

File Type (Deprecated): GeoTIFF
Distribution Format: GeoTIFF

URLs

URL 1

CC ID: 720869
URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6351
Name: Point cloud custom download
URL Type:
Online Resource
Description:

Custom download site for the point cloud used for this DEM.

URL 2

CC ID: 720872
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: 662393
Activity Date/Time: 2017-08-01
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 662392
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: 718333
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 720868
Activity Date/Time: 2018-02-13
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: Source lidar point data 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: 1289916
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: 1289917
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: 1289918
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: 1289919
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). - Breakline Collection: Breaklines were collected in a 3-D MicroStation/Terrasolid software environment. Breakline vertex elevations were established based on surrounding lidar point elevations. - DEM Creation: Terrasolid software was used to generate DEMs from a Triangulated Irregular Network (TIN) comprised of lidar points and 3-D hydro-enforcement breaklines.

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

Process Step 4

CC ID: 1289920
Description:

The NOAA Office for Coastal Management (OCM) received 770 files in .adf format. The bare earth raster files were at a 2 ft grid spacing. The data were in LA State Plane South, Zone 1702 (NAD83 NA11) coordinates and NAVD88 elevations in feet. OCM did the following for Digital Coast storage and provisioning purposes:

1. Converted the .adf format files to .tif format using gdal_translate

2. Converted the files from vertical units of feet to meters using gdal_translate

3. Copied the raster files to database and https

Process Date/Time: 2017-07-27 00:00:00
Process Contact: NOAA Office for Coastal Management (NOAA/OCM)
Phone (Voice): (843) 740-1202
Email Address: coastal.info@noaa.gov
Source: St. Charles Parish, Parish-wide Ortho and Lidar

Process Step 5

CC ID: 1289921
Description:

Files were converted to cloud optimized geotiff format to support streaming and the vertical units were reverted to feet to match the horizontal units.

Process Date/Time: 2023-08-17 00:00:00
Process Contact: NOAA Office for Coastal Management (NOAA/OCM)
Phone (Voice): (843) 740-1202
Email Address: coastal.info@noaa.gov

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity Airborne Lidar data

Related Items

Item Type Relationship Type Title
Data Set (DS) Cross Reference 2014 Lidar: St. Charles Parish, LA

Point cloud used to make this DEM

Catalog Details

Catalog Item ID: 49432
GUID: gov.noaa.nmfs.inport:49432
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-15 15:13+0000
Metadata Record Last Modified By: Kirk Waters
Metadata Record Last Modified: 2024-01-10 18:57+0000
Metadata Record Published: 2024-01-10
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