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Short Citation:
OCM Partners, 2023: 2015 USACE NCMP Topobathy Lidar DEM: Florida Gulf Coast, https://www.fisheries.noaa.gov/inport/item/49581.

Item Identification

Title: 2015 USACE NCMP Topobathy Lidar DEM: Florida Gulf Coast
Short Name: fl2015_usace_ncmp_fl_gulf_cst_dem_m5190_metadata
Status: Completed
Publication Date: 2016-12-15
Abstract:

These files contain rasterized bare earth bathymetric and topographic lidar elevations generated from data with a Hawkeye III (HEIII) lidar sensor. The HEIII integrates topographic, shallow water, and deep water bathymetric lidar sensors along with a digital camera on a single remote sensing platform for use in coastal mapping and charting activities. Bathymetric lidar data were required 1000 m seaward of the land/water interface or to laser extinction (whichever came first), while topographic lidar data were required 500 m inland of the land/water interface. Data coverage generally extends along the gulf coast of Florida from Ft. Walton Beach to Mexico Beach and from Anclote Key to Marco Island. In addition to the bare earth DEMs, the topobathy lidar point data are also available. These data are available for download here: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=5183 DEMs that were created from all classes of points (1, 2, 29) at a 1 meter grid size are available by request via email at: coastal.info@noaa.gov.

Original contact information:

Contact Org: JALBTCX

Title: Data Production Manager

Phone: 228-252-1121

Email: JALBTCX@usace.army.mil

Purpose:

These data were collected as a part of the NCMP to depict the elevations above and below water in the Florida coastal zone.

Notes:

12003

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT > LAND MANAGEMENT > LAND USE CLASSES
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL LANDFORMS
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY
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
UNCONTROLLED
GCMD Data Center Keywords v7 DOD/USARMY/USACE/SAM/MOBILE/OPJ/JALBTCX > Department of Defense
GCMD Data Center Keywords v7 Joint Airborne Lidar Bathymetry Technical Center of Expertise
GCMD Data Center Keywords v7 Mobile District
GCMD Data Center Keywords v7 Spatial Data Branch
GCMD Data Center Keywords v7 United States Army
GCMD Data Center Keywords v7 United States Army Corps of Engineers
GCMD Instrument Keywords v7 LIDAR > LIGHT DETECTION AND RANGING
ISO 19115 Topic Categories elevation
ISO 19115 Topic Categories imageryBaseMapsEarthCover
ISO 19115 Topic Categories location
ISO 19115 Topic Category elevation
ISO 19115 Topic Category imageryBaseMapsEarthCover
ISO 19115 Topic Category oceans
None 1mRaster
None BareEarth
None Bathymetry
None Coastal Zone Mapping Imaging Lidar (HawkEye III)
None IWG-OCM
None Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX)
None Mobile District
None National Coastal Mapping Program (NCMP)
None Topography
None U.S. Army Corps of Engineers (USACE)

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 2015
None June

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
VERTICAL LOCATION > LAND SURFACE
Global Change Master Directory (GCMD) Location Keywords
VERTICAL LOCATION > SEA FLOOR
UNCONTROLLED
Geographic Names Information System FL
Geographic Names Information System Florida
Geographic Names Information System United States

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: Map (digital)
Distribution Liability:

These data have been developed from the best available sources. Although efforts have been made to ensure that the data are accurate and reliable, errors and variable conditions originating from physical sources used to develop the data may be reflected in the data supplied. Users must be aware of these conditions and bear responsibility for the appropriate use of the information with respect to possible errors, scale, resolution, rectification, positional accuracy, development methodology, time period, environmental and climatic conditions and other circumstances specific to these data. The user is responsible for understanding the accuracy limitations of the data provided herein. The burden for determining fitness for use lies entirely with the user. The user should refer to the accompanying metadata notes for a description of the data and data development procedures. Any conclusions drawn from the analysis of this information are not the responsibility of JALBTCX, the NOAA Office for Coastal Management, or its partners.

Data Set Credit: Acknowledgement of the Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) would be appreciated in any publications or derived products.

Support Roles

Data Steward

CC ID: 668624
Date Effective From: 2016-12-15
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

CC ID: 668626
Date Effective From: 2016-12-15
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

Metadata Contact

CC ID: 668627
Date Effective From: 2016-12-15
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

CC ID: 668625
Date Effective From: 2016-12-15
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

CC ID: 668630
W° Bound: -86.620555
E° Bound: -81.717855
N° Bound: 30.402589
S° Bound: 25.894789

Extent Group 1 / Time Frame 1

CC ID: 668629
Time Frame Type: Range
Start: 2015-06-06
End: 2015-06-30

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=5190

;

Data Access Constraints:

None. These data have been developed from the best available sources. Although efforts have been made to ensure that the data are accurate and reliable, errors and variable conditions originating from physical sources used to develop the data may be reflected in the data supplied. Users must be aware of these conditions and bear responsibility for the appropriate use of the information with respect to possible errors, scale, resolution, rectification, positional accuracy, development methodology, time period, environmental and climatic conditions and other circumstances specific to these data. The user is responsible for understanding the accuracy limitations of the data provided herein. The burden for determining fitness for use lies entirely with the user. The user should refer to the accompanying metadata notes for a description of the data and data development procedures.

Data Use Constraints:

These data depict the heights at the time of the survey and are only accurate for that time. Acknowledgement of the Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) would be appreciated in any publications or derived products. The data herein, including but not limited to geographic data, tabular data, analytical data, electronic data structures or files, are provided "as is" without warranty of any kind, either expressed or implied, or statutory, including, but not limited to, the implied warranties or merchantability and fitness for a particular purpose. The entire risk as to the quality and performance of the data is assumed by the user. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the U.S. Army Corps of Engineers, Mobile District Office, Spatial Data Branch be liable for direct, indirect, incidental, consequential or special damages of any kind, including, but not limited to, loss of anticipated profits or benefits arising out of use of or reliance on the data. The Spatial Data Branch does not accept liability for any damages or misrepresentation caused by inaccuracies in the data or as a result of changes to the data caused by system transfers or other transformations or conversions, nor is there responsibility assumed to maintain the data in any manner or form. 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: 740231
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=5190
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: 740232
Download URL: https://coast.noaa.gov/htdata/raster2/elevation/USACE_Florida_Gulf_Cst_Topobathy_DEM_2015_5190
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 740234
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 740235
URL: https://coast.noaa.gov/dataregistry
URL Type:
Online Resource

URL 3

CC ID: 740236
URL: https://coast.noaa.gov
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 668670
Activity Date/Time: 2016-12-09
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 668669
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: 718270
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 740233
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Technical Environment

Description:

Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.0.3035

Data Quality

Accuracy:

These data are not attributed. | Quantitative Value: N/A | Quantitative Test Explanation: These data are not attributed.

Horizontal Positional Accuracy:

Compiled to meet 1 m horizontal RMSE at 95% confidence level.

Vertical Positional Accuracy:

HawkEye III topographic data - Tested 9.5 cm vertical RMSE at 95% confidence level.

HawkEye III bathymetric shallow FOV data - Tested 12.5 cm vertical RMSE at 95% confidence level.

HawkEye III bathymetric deep FOV data - Tested 20 cm vertical RMSE at 95% confidence level.

Completeness Report:

This data set covers the spatial extent of topographic lidar data obtained during this survey.

Conceptual Consistency:

During inspection and QC of the lidar point cloud, flightline to flightline elevation differences met the HawkEye III sensor specifications.

Lineage

Process Steps

Process Step 1

CC ID: 668612
Description:

These data were collected using the HawkEye III system. It is owned by GDS and operated by Woolpert. The system collects topo/bathy lidar data at 300 kHz and RGB imagery with the RCD30 8-bit TiIFF images. All raw data streams are transferred to the office for downloading and processing in Leica Lidar Survey Studio (LSS). Aircraft position data are processed using NovAtel Inertial Explorer and converted to GPB format and imported with aircraft GNSS and IMU data. Upon inspection and QA/QC in the software package LSS, anomalous data are flagged as invalid. GeoCue software then converts all valid data from ellipsoid to orthometric heights based on the NGS' GEOID12B model and exports valid lidar data as a series of unclassified LAS files.

Process Date/Time: 2015-06-06 00:00:00

Process Step 2

CC ID: 668613
Description:

LAS files are imported into GeoCue V2016.1.21.4, which is a geospatial workflow production and management software tool employed by JALBTCX to perform and monitor production of data products. Upon import into GeoCue, A customized classification macro, built upon the TerraScan V13 module within Microstation V8i, classifies valid topobathy data as ground points (2), unclassified points (1), and bathymetric points (22). Upon completion the macro, the classification results undergo quality control and any misclassified points are manually edited. In areas of dense vegetation the bare earth ground points might be incorrectly classified due to the inability of the laser to penetrate the canopy and reach the bare ground. In these areas, JALBTCX defaults to the algorithm's "ground" surface instead of manually reclassifying those points. They are partitioned into a series of 5km or quarter quad delivery boxes, one Classified LAS file per box. The format of the file is LAS version 1.2. Data are classified as 1 (valid non-ground topographic data), 2 (valid ground topographic data), and 22 (valid bathymetric data).

Process Date/Time: 2016-02-29 00:00:00

Process Step 3

CC ID: 668614
Description:

Data classified as ground points (2) and bathymetric points (22) in the las files are converted to a grid by generating a triangulated irregular network (TIN) and then extracting the grid node elevations from the TIN surface. The origin point of the grid is located at a horizontal position whose value is evenly divisible by the 1m grid resolution such that rasters from subsequent surveys have common cell boundaries. JALBTCX uses Quick Terrain Modeler V8 to perform this operation utilizing the following parameters; "Legacy Triangulation", "Max Sample Excursion - 30000", "Max Triangle Side - 30000", "Radius - none", "Tolerance - 1", and "Tiling Settings Snap to Grid (Expand)." The grid is exported from Quick Terrain Modeler as an ESRI ASCII Z grid file. Utilizing an in-house python script within ESRI ArcMap V10.1, the ASCII Z grid file is converted to a tiff-format raster file whose projection is defined as "The North American Datum of 1983 (2011)." The raster is then multiplied against a corresponding 1m Grid mask raster, a mask image produced from JALBTCX's 1m Grid, in ESRI's Raster Calculator to remove interpolated areas where data does not exist.

Process Date/Time: 2016-09-07 00:00:00

Process Step 4

CC ID: 668615
Description:

The NOAA Office for Coastal Management (OCM) received data in tif format from JALBTCX. The bare earth raster files were at a 1 m grid spacing. The data were in geographic coordinates and NAVD88 elevations in meters. OCM copied the raster files to database and https for Digital Coast storage and provisioning purposes.

Process Date/Time: 2016-12-05 00:00:00

Catalog Details

Catalog Item ID: 49581
GUID: gov.noaa.nmfs.inport:49581
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-15 15:15+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2018-03-13
Owner Org: OCMP
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2018-03-13
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2019-03-13