2017 NOAA NGS Topobathy Lidar DEM: Florida Keys Outer Reef, Block 04
Office for Coastal Management
Data Set
(DS)
| ID: 51529
| Published / External
Created: 2018-02-12
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Last Modified: 2024-01-10
Project (PRJ) | ID: 47844
ID: 51529
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | 2017 NOAA NGS Topobathy Lidar DEM: Florida Keys Outer Reef, Block 04 |
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Short Name | |
* Status | Completed |
Creation Date | |
Revision Date | |
• Publication Date | 2018-02-19 |
* » Abstract |
These data were collected by the National Oceanic Atmospheric Administration National Geodetic Survey Remote Sensing Division using a Riegl VQ880G system. The data were acquired from 20170216 - 20170220. The data includes topobathy data in an LAS 1.2 format file classified as unclassified (1), ground (2), noise (7), bathymetric point (26), submerged object (29), and International Hydrographic Organization (IHO) S-57 object (30) 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. The DEM was created from the bathymetric points (class 26) using las2dem from LAStools and GDAL. |
* 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 |
10203 |
Other Citation Details | |
• 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. |
DOI (Digital Object Identifier) | |
DOI Registration Authority | |
DOI Issue Date |
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 > SEAFLOOR TOPOGRAPHY |
Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION |
ISO 19115 Topic Category | elevation |
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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None | 20170216 |
None | 20170220 |
* Spatial Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Location Keywords | CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA |
CoRIS Place Thesaurus | COUNTRY/TERRITORY > United States of America > Florida |
CoRIS Place Thesaurus | OCEAN BASIN > Atlantic Ocean > Florida |
Stratum Keywords
Thesaurus | Keyword |
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Instrument Keywords
Thesaurus | Keyword |
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Platform Keywords
Thesaurus | Keyword |
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Physical Location
• » Organization | Office for Coastal Management |
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• » City | Charleston |
• » State/Province | SC |
• Country | |
• » Location Description |
Data Set Information
* Data Set Scope Code | Data Set |
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• Data Set Type | Elevation |
• Maintenance Frequency | None Planned |
Maintenance Note | |
» Data Presentation Form | Model (digital) |
• Entity Attribute Overview | |
Entity Attribute Detail Citation | |
Entity Attribute Detail URL | |
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
* » Support Role | Data Steward |
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* » Date Effective From | 2017-10-27 |
Date Effective To | |
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 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Distributor |
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* » Date Effective From | 2017-10-27 |
Date Effective To | |
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 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Metadata Contact |
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* » Date Effective From | 2017-10-27 |
Date Effective To | |
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 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Point of Contact |
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* » Date Effective From | 2017-10-27 |
Date Effective To | |
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 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
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* Contact Instructions |
Extents
Currentness Reference | Ground Condition |
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Extent Group 1
Extent Description |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -80.289 |
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* » E° Bound | -80.08 |
* » N° Bound | 25.807 |
* » S° Bound | 25.173 |
* » Description |
Extent Group 1 / Vertical Extent
EPSG Code | |
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Vertical Minimum | |
Vertical Maximum |
Extent Group 1 / Time Frame 1
* » Time Frame Type | Range |
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* » Start | 2017-02-16 |
End | 2017-02-20 |
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Alternate End As Of Info | |
Description |
Spatial Information
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Spatial Representation
Grid Representation Used? | Yes |
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Vector Representation Used? | No |
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Video Representation Used? |
Grid Representation
Dimension Count | 2 | ||||||||||||
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Cell Geometry | Point | ||||||||||||
Transformation Parameters Available? | No | ||||||||||||
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Access Information
Data License | |
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Data License URL | |
Data License Statement | |
* » Security Class | Unclassified |
* Security Classification System | |
Security Handling Description | |
• Data Access Policy | |
» Data Access Procedure |
This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8480; |
• » 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. |
Metadata Access Constraints | |
Metadata Use Constraints |
Distribution Information
Start Date | 2024-01-10 |
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End Date | Present |
» Download URL | https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/NGS_FL_keys_outer_reef_block4_2017_8480/index.html |
Distributor | NOAA Office for Coastal Management (NOAA/OCM) (2017-10-27 - Present) |
File Name | |
Description |
Bulk download of data files |
File Date/Time | |
File Type (Deprecated) | |
Distribution Format | GeoTIFF |
File Size | |
Application Version | |
Compression | Uncompressed |
Review Status |
Start Date | 2018-02-19 |
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End Date | Present |
» Download URL | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8480/details/8480 |
Distributor | NOAA Office for Coastal Management (NOAA/OCM) (2017-10-27 - Present) |
File Name | |
Description |
Custom download app allowing subsetting and format/projection changes. |
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File Type (Deprecated) | |
Distribution Format | GeoTIFF |
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Compression | Zip |
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Archive Information
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URLs
URL | https://coast.noaa.gov/dataviewer |
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Name | |
URL Type | Online Resource |
File Resource Format | |
Description |
URL | https://coast.noaa.gov/digitalcoast/data/home.html |
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Name | |
URL Type | Online Resource |
File Resource Format | |
Description |
URL | https://coast.noaa.gov |
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Name | |
URL Type | Online Resource |
File Resource Format | |
Description |
URL | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/8412/supplemental/fl2017_ngs_keys_outer_reef_block04_m8412.kmz |
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Name | footprint |
URL Type | Browse Graphic |
File Resource Format | kmz |
Description |
This graphic shows the lidar footprint for the 2017 NOAA NGS topobathy lidar project of the outer reef keys block04 in Florida. |
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Activity Log
Activity Time | 2017-11-07 |
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Activity Type | |
Responsible Party | |
Description |
Date that the source FGDC record was last modified. |
Activity Time | 2017-11-14 |
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Activity Type | |
Responsible Party | |
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 Time | 2018-02-08 |
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Description |
Partial upload of Positional Accuracy fields only. |
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Issues
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Technical Environment
Description |
OS Independent |
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Data Quality
Representativeness | |
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Accuracy | |
Analytical Accuracy | |
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 |
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Completeness Report |
Data covers the 1690 tiles (500m x 500m tiles). |
Conceptual Consistency |
Not applicable |
» Quality Control Procedures Employed |
Data Management
» Have Resources for Management of these Data Been Identified? | |
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» Approximate Percentage of Budget for these Data Devoted to Data Management | |
» Do these Data Comply with the Data Access Directive? | |
» Is Access to the Data Limited Based on an Approved Waiver? | |
» If Distributor (Data Hosting Service) is Needed, Please Indicate | |
» Approximate Delay Between Data Collection and Dissemination | |
» If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed |
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» Actual or Planned Long-Term Data Archive Location | |
» If World Data Center or Other, Specify | |
» If To Be Determined, Unable to Archive, or No Archiving Intended, Explain |
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» Approximate Delay Between Data Collection and Archiving | |
» How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive? |
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Lineage
» Lineage Statement |
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Sources
Citation Title | 2017 NOAA NGS Topobathy Lidar: Florida Keys Outer Reef, Block 04 |
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Publish Date | 2017-11-04 |
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Citation URL | https://www.fisheries.noaa.gov/inport/item/48180 |
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Process Steps
Process Step Number | 1 |
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» 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 | 2017-10-27 00:00:00 |
Process Contact | |
Phone (Voice) | |
Email Address | |
Source |
Process Step Number | 2 |
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» Description |
The NOAA Office for Coastal Management (OCM) received files in las format. The files contained lidar elevation and intensity measurements of the Florida outer keys block4. The data were in UTM Zone 17 coordinates and ellipsoid elevations in meters. The data classifications for the data are: unclassified (1), ground (2), noise (7), bathymetric point (26), submerged object (29), and International Hydrographic Organization (IHO) S-57 object (30) CM 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 | |
Phone (Voice) | |
Email Address | |
Source |
Process Step Number | 3 |
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» Description |
The point cloud data were converted to UTM zone 17N coordinates and tiled into 10 million point LAZ files or smaller using lastile from LAStools. Tiles incorporated a buffer to allow DEM creation one tile at a time. |
Process Date/Time | 2018-02-12 00:00:00 |
Process Contact | Office for Coastal Management (OCM) |
Phone (Voice) | |
Email Address | |
Source | 2017 NOAA NGS Topobathy Lidar: Florida Keys Outer Reef, Block 04 |
Process Step Number | 4 |
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» Description |
Tiled point cloud files were interpolated to raster tifs using las2dem. This uses a triangulated irregular network approach. |
Process Date/Time | 2018-02-12 00:00:00 |
Process Contact | Office for Coastal Management (OCM) |
Phone (Voice) | |
Email Address | |
Source | 2017 NOAA NGS Topobathy Lidar: Florida Keys Outer Reef, Block 04 |
Process Step Number | 5 |
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» Description |
DEM TIFF tiles were mosaiced into a single file using GDAL utilities gdalbuildvrt and gdal_translate. |
Process Date/Time | 2018-02-12 00:00:00 |
Process Contact | Office for Coastal Management (OCM) |
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Acquisition Information
Instruments
Identifier | Riegl VQ-880-G |
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Docucomp UUID | |
Instrument / Gear | Instrument |
Instrument Type | Topobathymetric lidar sensor |
Description |
The RIEGL VQ-880-G is a fully integrated airborne laser scanning system for combined hydrographic and topographic surveying. |
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FAQs
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Child Items
Rubric scores updated every 15m
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Related Items
Item Type | Relationship Type | Title |
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Data Set (DS) | Cross Reference |
2017 NOAA NGS Topobathy Lidar: Florida Keys Outer Reef, Block 04 Point cloud used to create this data. |
Catalog Details
Catalog Item ID | 51529 |
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Metadata Record Created By | Kirk Waters |
Metadata Record Created | 2018-02-12 13:14+0000 |
Metadata Record Last Modified By | Kirk Waters |
» Metadata Record Last Modified | 2024-01-10 18:44+0000 |
Metadata Record Published | 2022-03-16 |
Owner Org | OCM |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2022-03-16 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2023-03-16 |
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