2016 NOAA NGS Topobathy Lidar DEM: Florida Keys Outer Reef Block 01
Data Set (DS) | Office for Coastal Management (OCM)GUID: gov.noaa.nmfs.inport:48373 | Updated: January 10, 2024 | Published / External
Item Identification
Title: | 2016 NOAA NGS Topobathy Lidar DEM: Florida Keys Outer Reef Block 01 |
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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 |
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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 |
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UNCONTROLLED | |
None | 20160721 |
None | 20161121 |
Spatial Keywords
Thesaurus | Keyword |
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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 |
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City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
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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
Date Effective From: | 2017-09-14 |
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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: | 2017-09-14 |
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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
Date Effective From: | 2017-09-14 |
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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: | 2017-09-14 |
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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 |
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Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -81.948 | |
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E° Bound: | -80.622 | |
N° Bound: | 24.874 | |
S° Bound: | 24.436 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2016-07-21 |
End: | 2016-11-21 |
Spatial Information
Spatial Representation
Representations Used
Grid: | Yes |
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Access Information
Security Class: | Unclassified |
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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
Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6365 |
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Distributor: | |
File Name: | Customized Download |
Description: |
Create custom data files by choosing data area, product type, map projection, file format, datum, etc. |
Distribution 2
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 |
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Distributor: | |
File Name: | Bulk Download |
Description: |
Simple download of data files. |
URLs
URL 1
URL: | https://coast.noaa.gov/dataviewer |
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URL Type: |
Online Resource
|
URL 2
URL: | https://coast.noaa.gov/digitalcoast/data |
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URL Type: |
Online Resource
|
URL 3
URL: | https://coast.noaa.gov |
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URL Type: |
Online Resource
|
URL 4
URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/6271/supplemental/fl2016_ngs_topobathy_lidar_keys_outer_reef_block01_m6271.kmz |
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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
Activity Date/Time: | 2017-08-22 |
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Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
Activity Date/Time: | 2017-11-14 |
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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 |
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Description: |
Partial upload of Positional Accuracy fields only. |
Activity Log 4
Activity Date/Time: | 2018-03-13 |
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Description: |
Partial upload to move data access links to Distribution Info. |
Technical Environment
Description: |
OS Independent |
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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 |
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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
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. |
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Process Date/Time: | 2017-03-27 00:00:00 |
Process Step 2
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 |
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Process Date/Time: | 2017-04-10 00:00:00 |
Process Step 3
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. |
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Process Date/Time: | 2017-08-21 00:00:00 |
Catalog Details
Catalog Item ID: | 48373 |
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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 |