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Short Citation:
Office for Coastal Management, 2024: 2016 NOAA NGS Topobathy Lidar DEM: Florida Keys Outer Reef Block 01, https://www.fisheries.noaa.gov/inport/item/48373.

Item Identification

Title: 2016 NOAA NGS Topobathy Lidar DEM: Florida Keys Outer Reef Block 01
Short Name: fl2016_ngs_topobathy_keys_outer_reef_block01_dem_m6365_metadata
Status: Completed
Publication Date: 2017-09-14
Abstract:

These data were collected by the National Oceanic Atmospheric Administration National Geodetic Survey Remote Sensing Division using a Riegl VQ820G system. The data were acquired from 20160721 - 20161121. The data includes topobathy data in an LAS 1.2 format file classified as unclassified (1), noise (7), bathymetric point (26), and submerged object (29) in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards. This data set may also include lidar intensity values and encoded RGB image values. A digital elevation model was then derived from the lidar points.

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:

This lidar data are an ancillary product of NOAA's Coastal Mapping Program (CMP), created through a wider Integrated Ocean and Coastal Mapping initiative to increase support for multiple uses of the data. It is not intended for mapping, charting, or navigation. In addition, it will be used for ongoing research efforts for testing and developing standards for airborne lidar.

Notes:

11391

Supplemental Information:

Data include all lidar returns. Outliers or false returns (e.g., returns from birds, atmospheric particles, and/or system noise) may be present in the data. An automated ground classification algorithm was used to determine bare earth point classification. It should be noted that not all returns were correctly classified; therefore the user should examine for acceptability.

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 > BATHYMETRY
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 20160721
None 20161121

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 > Gulf of Mexico > 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
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: 632168
Date Effective From: 2017-09-14
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: 632170
Date Effective From: 2017-09-14
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: 632171
Date Effective From: 2017-09-14
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: 632169
Date Effective From: 2017-09-14
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: 1290051
W° Bound: -81.948
E° Bound: -80.622
N° Bound: 24.874
S° Bound: 24.436

Extent Group 1 / Time Frame 1

CC ID: 1290050
Time Frame Type: Range
Start: 2016-07-21
End: 2016-11-21

Spatial Information

Spatial Representation

Representations Used

Grid: 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/#/lidar/search/where:ID=6271;

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: 746428
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6365
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: 746429
Download URL: https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/NGS_FL_keys_outer_reef_block1_2016_6365/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 746431
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 746432
URL: https://coast.noaa.gov/digitalcoast/data
URL Type:
Online Resource

URL 3

CC ID: 746433
URL: https://coast.noaa.gov
URL Type:
Online Resource

URL 4

CC ID: 746434
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/6271/supplemental/fl2016_ngs_topobathy_lidar_keys_outer_reef_block01_m6271.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 Florida Keys Outer Reef Block01.

Activity Log

Activity Log 1

CC ID: 632194
Activity Date/Time: 2017-08-22
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 632193
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: 717829
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 746430
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

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 2452 tiles (500m x 500m tiles).

Conceptual Consistency:

Not applicable

Lineage

Process Steps

Process Step 1

CC ID: 1290046
Description:

Data were processed to an initial LAS format using the Riegl RiProcess software. The Applanix POSPac software was utilized for GPS and inertial processing, and GeoCue, Terrasolid, and LP360 software for data visualization, 3D editing, and export to final LAS file. Data were processed in NAD83 horizontal and vertical datum.

Process Date/Time: 2017-03-27 00:00:00

Process Step 2

CC ID: 1290047
Description:

The NOAA Office for Coastal Management (OCM) received files in las format. The files contained lidar elevation and intensity measurements of the Florida Keys Outer Reef Block 01. The data were in UTM Zone 17 coordinates and ellipsoid elevations in meters. The data classifications for the data are: 1 - unclassified, 7 - noise, 26 - bathymetric point, and 29 - submerged object . 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: 2017-04-10 00:00:00

Process Step 3

CC ID: 1290048
Description:

The NOAA Office for Coastal Management used the point cloud data to derive a digital elevation model (DEM) for the area. The DEM was created by using the ground and bathy points processed through these steps: 1) reprojected to UTM zone 17 coordinates and orthometric heights via geoid12b; 2) retiled with a buffer using lastile from LAStools; 3) tiles rasterized with las2dem from LAStools; 4) tiles mosaiced into a single DEM with gdalbuildvrt and gdal_translate.

Process Date/Time: 2017-08-21 00:00:00

Catalog Details

Catalog Item ID: 48373
GUID: gov.noaa.nmfs.inport:48373
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-14 14:43+0000
Metadata Record Last Modified By: Kirk Waters
Metadata Record Last Modified: 2024-01-10 18:58+0000
Metadata Record Published: 2024-01-10
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