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NGS Metadata Library > NGS Lidar >

2016 NOAA NGS Topobathy Lidar: Sugarloaf Key to Big Pine Key, Florida

Data Set (DS)  |  National Geodetic Survey (NGS)
GUID: gov.noaa.nmfs.inport:53123  |  Updated: October 17, 2023  |  Published / External 
Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
URLs
Tech Environment
Data Quality
Lineage
Child Items
Catalog Details

Summary

Browse Graphic

Short Citation
National Geodetic Survey, 2024: 2016 NOAA NGS Topobathy Lidar: Sugarloaf Key to Big Pine Key, Florida, https://www.fisheries.noaa.gov/inport/item/53123.
Full Citation Examples

Abstract

These data were collected by NOAA using a Riegl VQ880G sensor. The data were acquired from October 11, 2016 through October 24, 2016. The data includes topobathy data in LAS 1.2 format classified as created, unclassified (1); ground (2); noise (7); bathymetric noise (22); water column (25); bathymetric bottom (26); water surface (27); derived water surface (28); Submerged object, not otherwise specified (29); International Hydrographic Organization S-57 object, not otherwise specified (30); in accordance with project specifications. The project consists of approximately 190 square miles of data along the shores of the Florida Keys. This dataset contains 1,997 500 m x 500 m lidar tiles..

Original contact information:

Contact Org: National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Geodetic Survey (NGS), Remote Sensing Division

Title: Chief, Remote Sensing Division

Phone: 240-533-9576

Distribution Information

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

  • LAS/LAZ - LASer

    Simple download of data files.

Access Constraints:

None

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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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

Controlled Theme Keywords

COASTAL ELEVATION, elevation, SEAFLOOR TOPOGRAPHY, TOPOGRAPHICAL RELIEF MAPS

Child Items

Type Title
Entity NOAA NGS Topobathy Lidar Class Scheme: Sugarloaf Key, FL

Contact Information

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

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

Extents

Geographic Area 1

-81.632448° W, -81.360463° E, 24.828247° N, 24.511913° S

Time Frame 1
2016-10-11 - 2016-10-24

Item Identification

Title: 2016 NOAA NGS Topobathy Lidar: Sugarloaf Key to Big Pine Key, Florida
Status: Completed
Publication Date: 2018-08-10
Abstract:

These data were collected by NOAA using a Riegl VQ880G sensor. The data were acquired from October 11, 2016 through October 24, 2016. The data includes topobathy data in LAS 1.2 format classified as created, unclassified (1); ground (2); noise (7); bathymetric noise (22); water column (25); bathymetric bottom (26); water surface (27); derived water surface (28); Submerged object, not otherwise specified (29); International Hydrographic Organization S-57 object, not otherwise specified (30); in accordance with project specifications. The project consists of approximately 190 square miles of data along the shores of the Florida Keys. This dataset contains 1,997 500 m x 500 m lidar tiles..

Original contact information:

Contact Org: National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Geodetic Survey (NGS), Remote Sensing Division

Title: Chief, Remote Sensing Division

Phone: 240-533-9576
Purpose:

The Florida Keys have been identified as having critical topographic and bathymetric data gaps by NOAA. This lidar data will fill those critical gaps.
Supplemental Information:

The full workflow used for this project is found in the final project report submitted to NOAA.

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
CoRIS Discovery Thesaurus Geographic Information > LiDAR
CoRIS Theme Thesaurus EARTH SCIENCE > Land Surface > Topography> Terrain Elevation
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
NOAA NOS Harvest Catalog CoRIS

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 20161011
None 20161012
None 20161014
None 20161015
None 20161017
None 20161020
None 20161022
None 20161023
None 20161024

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA
UNCONTROLLED
CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Florida
CoRIS Place Thesaurus OCEAN BASIN > Atlantic Ocean > Florida

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: Model (digital)
Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the National Geodetic Survey, the Office for Coastal Management, or its partners.
Data Set Credit: We request that you credit the National Oceanic and Atmospheric Administration (NOAA) when you use these data in a report, publication, or presentation.

Support Roles

Data Steward

CC ID: 763223
Date Effective From: 2018-07-24
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: 763225
Date Effective From: 2017-07-24
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

CC ID: 763226
Date Effective From: 2018-07-24
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: 763224
Date Effective From: 2018-07-24
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: 1141535
W° Bound: -81.632448
E° Bound: -81.360463
N° Bound: 24.828247
S° Bound: 24.511913

Extent Group 1 / Time Frame 1

CC ID: 1141534
Time Frame Type: Range
Start: 2016-10-11
End: 2016-10-24

Spatial Information

Spatial Representation

Representations Used

Vector: No

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=8574;
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: 763227
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8574
Distributor: Office for Coastal Management (OCM) (2017-07-24 - 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
Compression: Zip

Distribution 2

CC ID: 763228
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8574/index.html
Distributor: Office for Coastal Management (OCM) (2017-07-24 - 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

CC ID: 763229
URL: https://coast.noaa.gov/dataviewer
Name: Digital Coast Data Access Viewer
URL Type:
Online Resource

URL 2

CC ID: 763230
URL: https://coast.noaa.gov/digitalcoast/data/home.html
Name: Digital Coast
URL Type:
Online Resource

URL 3

CC ID: 763231
URL: https://coast.noaa.gov
Name: Office for Coastal Management
URL Type:
Online Resource

URL 4

CC ID: 763232
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8574/supplemental/fl2016_ngs_topobathy_m8574.kmz
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: kmz
Description:

This graphic shows the lidar footprint for the 2016 NOAA NGS topobathy lidar project of Sugarloaf Key to Big Pine Key, FL.

Technical Environment

Description:

OS Independent

Data Quality

Horizontal Positional Accuracy:

The data positions were obtained using post processed KGPS methods. The horizontal accuracy of the data is better than plus or minus 1.0 m.; Quantitative Value: 1.0 meters, Test that produced the value: 1 Sigma
Vertical Positional Accuracy:

The data positions were obtained using post processed KGPS methods. Data used to test the lidar was collected with Static GPS Observations and compared against the published data. The vertical accuracy of the data is better than plus or minus 0.15 m.; Quantitative Value: 0.15 meters, Test that produced the value: 1 Sigma
Completeness Report:

Data covers the project boundary.
Conceptual Consistency:

Not applicable

Lineage

Sources

Lidar

CC ID: 1141530

Process Steps

Process Step 1

CC ID: 1141531
Description:

>Data for the Florida Keys project was acquired by NOAA using a Riegl VQ880G sensor. All delivered lidar data is referenced to:

Horizontal Datum-NAD83 (2011) epoch: 2010

Projection-UTM Zone 17 North

Horizontal Units-meters

Vertical Datum-NAD83(2011) epoch: 2010

Vertical Units-meters

This dataset encompasses 1,997 500m x 500m tiles. Both green lidar data and NIR lidar data was acquired.

NOAA acquired, calibrated, and performed the refraction correction of the lidar data. Light travels at different speeds in air versus water and its direction of travel or angle is changed or refracted when entering the water column. The refraction correction process corrects for this difference by adjusting the depth (distance traveled) and horizontal position (change of angle/direction) of the lidar data acquired within water.

Dewberry received the calibrated green and NIR data and verified complete coverage. Relative accuracy of the green swaths compared to overlapping and adjacent green swaths as well as the relative accuracy of green swaths compared to overlapping and adjacent NIR swaths was verified through the use of Delta-Z (DZ) orthos created in GeoCue software. Intraswath or within a swath relative accuracy was verified using Quick Terrain Modeler. Profiles of elevated planar features, such as roofs, were used to verify horizontal alignment between overlapping swaths.

Dewberry used algoritms in TerraScan to create the intial ground/submerged topography surface.

Dewberry created 2-D breaklines by digitizing breaklines in a 2-D environment using intensity imagery as a reference. Dewberry used the 2-D breaklines to classify the bathymetric bottom and ground points properly in TerraScan.

All lidar data was peer-reviewed. Dewberry's QAQC also included creating void polygons for use during review. All necessary edits were applied to the dataset. GeoCue software was used to update LAS header information, including all projection and coordinate reference system information. The final lidar data are in LAS format 1.2 and point data record format 3.

The final classificaton scheme is as follows:

1-Unclassified

2-Ground

7-Noise

22-Bathymetric Noise

25-Water Column

26-Bathymetric Bottom

27-Water surface

30-International Hydrograpic Organization (IHO) S-57 objects

All data is then verified by an Independent QC department within Dewberry. The independent QC is performed by separate analysts who do not perform manual classification or editing. The independent QC involves quantitative and qualitative reviews.
Process Date/Time: 2018-01-03 00:00:00

Process Step 2

CC ID: 1141532
Description:

The NOAA Office for Coastal Management (OCM) received files in las format. The files contained lidar elevation and intensity measurements. The data were in UTM Zone 17 coordinates and ellipsoid elevations in meters. OCM performed the following processing on the data for Digital Coast storage and provisioning purposes: 1. Converted from UTM Zone 17 to geographic coordinates 2. Sorted by gps time 3. Compressed the data using laszip
Process Date/Time: 2017-02-01 00:00:00
Process Contact: Office for Coastal Management (OCM)

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity NOAA NGS Topobathy Lidar Class Scheme: Sugarloaf Key, FL

Catalog Details

Catalog Item ID: 53123
GUID: gov.noaa.nmfs.inport:53123
Metadata Record Created By: Maryellen Sault
Metadata Record Created: 2018-07-24 07:16+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: NGS
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