2017 NOAA/OCM Unmanned Aerial System Lidar: Grand Bay NERR
Data Set (DS) | Office for Coastal Management (OCM)GUID: gov.noaa.nmfs.inport:48142 | Updated: October 17, 2023 | Published / External
Summary
Short Citation
Office for Coastal Management, 2025: 2017 NOAA/OCM Unmanned Aerial System Lidar: Grand Bay NERR, https://www.fisheries.noaa.gov/inport/item/48142.
Full Citation Examples
Quantum Spatial (QSI) and PrecisionHawk (PH) collected lidar for test sites within the Grand Bay National Estuarine Research Reserve (NERR) using an unmanned aerial system (UAS). Four sites were flown, covering a total of 177 acres. A fixed-wing PH Lancaster (revision 5) platform was used, carrying a Velodyne Puck VLP-16 based lidar system. The system provides 2 returns (strongest and last) with a pulse rate of 300 kHz using a 903 nm wavelength laser. Flights were conducted from May 9-11, 2017 and were flown at 50 meters above ground level.
Specifications for the collection included 30 pulses per square meter and 0.10 meter RMSE vertical accuracy in non-vegetated areas. The average first return density was over 105 points per square meter with an average ground classified density of over 3 points per square meter.
Deliverables included the lidar point cloud in LAS/LAZ format. Data were delivered in UTM zone 16 NAD83(2011) horizontally and NAVD88 (Geoid12b) meters vertically.
Lidar point clouds were projected back to geographic coordinates for storage in the Digital Coast Data Access Viewer and the vertical datum was converted to the ellipsoid.
Original contact information:
Contact Org: NOAA Office for Coastal Management
Phone: 843-740-1202
Email: coastal.info@noaa.gov
Distribution Information
-
Customized Download allowing user to pick projection, datum, file format, etc.
-
LAS/LAZ - LASer
Simple download of data files.
None
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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no
longer represent actual surface conditions.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.
Controlled Theme Keywords
COASTAL ELEVATION, elevation, SEAFLOOR TOPOGRAPHY, TOPOGRAPHICAL RELIEF MAPS
Child Items
No Child Items for this record.
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
-88.42051° W,
-88.41041° E,
30.41069° N,
30.35701° S
2017-05-09 - 2017-05-11
Item Identification
Title: | 2017 NOAA/OCM Unmanned Aerial System Lidar: Grand Bay NERR |
---|---|
Short Name: | 2017 gbnerr uas lidar m8386 |
Status: | Completed |
Publication Date: | 2017-10-15 |
Abstract: |
Quantum Spatial (QSI) and PrecisionHawk (PH) collected lidar for test sites within the Grand Bay National Estuarine Research Reserve (NERR) using an unmanned aerial system (UAS). Four sites were flown, covering a total of 177 acres. A fixed-wing PH Lancaster (revision 5) platform was used, carrying a Velodyne Puck VLP-16 based lidar system. The system provides 2 returns (strongest and last) with a pulse rate of 300 kHz using a 903 nm wavelength laser. Flights were conducted from May 9-11, 2017 and were flown at 50 meters above ground level. Specifications for the collection included 30 pulses per square meter and 0.10 meter RMSE vertical accuracy in non-vegetated areas. The average first return density was over 105 points per square meter with an average ground classified density of over 3 points per square meter. Deliverables included the lidar point cloud in LAS/LAZ format. Data were delivered in UTM zone 16 NAD83(2011) horizontally and NAVD88 (Geoid12b) meters vertically. Lidar point clouds were projected back to geographic coordinates for storage in the Digital Coast Data Access Viewer and the vertical datum was converted to the ellipsoid. Original contact information: Contact Org: NOAA Office for Coastal Management Phone: 843-740-1202 Email: coastal.info@noaa.gov |
Purpose: |
Test the ability to provide lidar data from a UAS and determine if it is better able to penetrate marsh grasses. |
Notes: |
10165 |
Supplemental Information: |
A final report for this project may be viewed at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8386/supplemental/NOAA_UAS_Grand_Bay_LiDAR_Technical_Data_Report_Combined.pdf |
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 > BATHYMETRY/SEAFLOOR TOPOGRAPHY > SEAFLOOR TOPOGRAPHY
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
|
ISO 19115 Topic Category |
elevation
|
UNCONTROLLED | |
None | Bare earth |
None | Bare ground |
None | Drone |
None | High-resolution |
None | Light Detection and Ranging |
None | UAS |
None | Unmanned Aerial System |
Spatial Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MISSISSIPPI
|
Physical Location
Organization: | Office for Coastal Management |
---|---|
City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
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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 the Quantum Spatial, PrecisionHawk, the Office for Coastal Management, or its partners. |
Data Set Credit: | NOAA, Quantum Spatial, PrecisionHawk, GBNERR |
Support Roles
Data Steward
Date Effective From: | 2017-10-15 |
---|---|
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
Date Effective From: | 2017-10-15 |
---|---|
Date Effective To: | |
Contact (Organization): | Office for Coastal Management (OCM) |
Address: |
2234 South Hobson Avenue Charleston, SC 29405-2413 |
URL: | https://www.coast.noaa.gov/ |
Metadata Contact
Date Effective From: | 2017-10-15 |
---|---|
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
Date Effective From: | 2017-10-15 |
---|---|
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
W° Bound: | -88.42051 | |
---|---|---|
E° Bound: | -88.41041 | |
N° Bound: | 30.41069 | |
S° Bound: | 30.35701 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
---|---|
Start: | 2017-05-09 |
End: | 2017-05-11 |
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 ; |
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
Start Date: | 2018-02-27 |
---|---|
End Date: | Present |
Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8386 |
Distributor: | Office for Coastal Management (OCM) (2017-10-15 - Present) |
File Name: | Customized Download |
Description: |
Customized Download allowing user to pick projection, datum, file format, etc. |
File Type (Deprecated): | Zip |
Compression: | Zip |
Distribution 2
Start Date: | 2018-02-27 |
---|---|
End Date: | Present |
Download URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8386/index.html |
Distributor: | Office for Coastal Management (OCM) (2017-10-15 - Present) |
File Name: | Bulk Download |
Description: |
Simple download of data files. |
File Type (Deprecated): | LAZ |
Distribution Format: | LAS/LAZ - LASer |
Compression: | Zip |
URLs
URL 1
URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8386/supplemental/2017_GBNERR_UAS_area.kmz |
---|---|
Name: | 2017_GBNERR_UAS_area.kmz |
URL Type: |
Browse Graphic
|
File Resource Format: | kmz |
Description: |
Browse graphic showing the area of coverage. |
URL 2
URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8386/supplemental/ |
---|---|
Name: | Technical report |
URL Type: |
Online Resource
|
File Resource Format: | |
Description: |
Contractor technical report from data collection. |
Activity Log
Activity Log 1
Activity Date/Time: | 2017-09-25 |
---|---|
Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
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
Activity Date/Time: | 2018-02-08 |
---|---|
Description: |
Partial upload of Positional Accuracy fields only. |
Activity Log 4
Activity Date/Time: | 2018-03-13 |
---|---|
Description: |
Partial upload to move data access links to Distribution Info. |
Data Quality
Horizontal Positional Accuracy: |
unknown |
---|---|
Vertical Positional Accuracy: |
Vertical Accuracy reporting is designed to meet guidelines presented in the National Standard for Spatial Data Accuracy (NSSDA) (FGDC, 1998) and the ASPRS Guidelines for Vertical Accuracy Reporting for LiDAR Data V1.0 (ASPRS, 2014). The statistical model compares known ground survey points (GSPs) to the closest laser point. Vertical accuracy statistical analysis uses ground survey points in open areas where the LiDAR system has a "very high probability" that the sensor will measure the ground surface and is evaluated at the 95th percentile. For the Grand Bay NERR area, NOAA and Grand Bay NERR collected 106 points in non-vegetated areas for comparison. Analysis indicated a vertical RMSE of 0.072 meters. Non-parametric examination of the errors showed a 95% confidence level of 0.145 meters. ; Quantitative Value: 0.072 meters, Test that produced the value: Tested to meet FVA at a 95 percent confidence level in meters. |
Completeness Report: |
LiDAR data has been collected and processed for all areas within the project study area. |
Conceptual Consistency: |
Upon receipt from vendor (Quantum Spatial), all LiDAR data was independently reviewed by staff from the NOAA Office for Coastal Management (OCM) to ensure project specifications were met. All data were inventoried for completeness and data were checked for quality, which included examining LiDAR data for errors associated with internal data consistency, model quality, and accuracy. |
Lineage
Sources
Processed Lidar Data
Contact Role Type: | Originator |
---|---|
Contact Type: | Organization |
Contact Name: | Quantum Spatial, Inc |
Process Steps
Process Step 1
Description: |
The LiDAR survey occurred between May 9, 2017 and May 11, 2017 using a Velodyne Puck VLP-16 laser system mounted in PrecisionHawk's Lancaster Rev 5 Dual-Frequency GPS UAS and flown by PrecisionHawk pilots. Upon completion of data acquisition, Precision Hawk processed SBETs and raw point data into geolocated swaths. Processing tasks included GPS control computations, smoothed best estimate trajectory (SBET) calculations, kinematic corrections, and calculation of laser point position. Ground control data was collected by Precision Hawk to be used in the post-processing and calibration of the LIDAR flights. Following calibration, QSI initiated a suite of automated and manual techniques to classify the LiDAR points and create the requested deliverables. Processing methodologies were tailored for the landscape. Classifications were as follows: Unclassified (class 1) - Laser returns that are not included in the ground class or other vegetation classes, retained in order to avoid false vegetation classing within roads or other bare ground surfaces. Ground (class 2) - Laser returns that are determined to be ground using automated and manual cleaning algorithms. Low Noise (class 7) - Laser returns that are determined to be artificial points below the ground surface. Water (class 9) - Laser returns that are determined to be water using manual cleaning techniques. Near Ground Noise (class 14) - Laser returns that are determined to be artificial points between 0 and 20 meters above the ground surface. High Noise (class 18) - Laser returns that are determined to be artificial points, equal to or greater than 20 meters above the ground surface. |
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Process Date/Time: | 2017-01-01 00:00:00 |
Process Step 2
Description: |
The NOAA Office for Coastal Management (OCM) received the files in laz format. The files contained Lidar elevation and intensity measurements. The data were in UTM zone 16 (NAD83 2011 Epoch 2010.0) and NAVD88 (Geoid12b) vertical meters. OCM performed the following processing to the data to make it available within the Digital Coast: 1. The data were converted from UTM to geographic coordinates. 2. The data were converted from NAVD88 (orthometric) heights to NAD83(2011) ellipsoid heights using Geoid12b grids. The data was received without a metadata record. This record was produced based on the data quality report. |
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Process Date/Time: | 2017-09-01 00:00:00 |
Process Contact: | Office for Coastal Management (OCM) |
Source: | Processed Lidar Data |
Catalog Details
Catalog Item ID: | 48142 |
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GUID: | gov.noaa.nmfs.inport:48142 |
Metadata Record Created By: | Anne Ball |
Metadata Record Created: | 2017-11-14 14:19+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2023-10-17 16:12+0000 |
Metadata Record Published: | 2022-03-16 |
Owner Org: | OCM |
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 |