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Short Citation:
OCM Partners, 2021: 2013 USACE NCMP Topobathy Lidar: Lanai (HI), https://www.fisheries.noaa.gov/inport/item/49749.

Item Identification

Title: 2013 USACE NCMP Topobathy Lidar: Lanai (HI)
Short Name: hi2013_usace_ncmp_lanai_m5018_metadata
Status: Completed
Publication Date: 2016-04-13
Abstract:

These files contain classified topo/bathy lidar data. Data are classified as 1 (valid non-ground topographic data), 2 (valid ground topographic data), and 29 (valid bathymetric data). Classes 1 and 2 are defined in accordance with the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards. These data were collected by the Coastal Zone Mapping and Imaging Lidar (CZMIL) system. CZMIL integrates a lidar sensor with simultaneous topographic and bathymetric capabilities, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. Native lidar data is not generally in a format accessible to most Geographic Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3-dimensional positions that can be imported into GIS software for visualization and further analysis.

Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 National Adjustment of 2011 (NAD83 PA11).

Vertical positions are referenced to the (NAD83 PA11) ellipsoid and provided in meters. The 3-D position data are sub-divided into a series of LAS files, which are tiled into quarter-quads or 5km boxes. In addition to the lidar point data, Digital Elevation Models (DEMs), created from the lidar point data are also available. DEMs were created from all classes of points (1, 2, 29) at a 1 meter grid size and bare earth DEMs were created from the ground and bathymetric data classes (2, 29) at a 1 meter grid size. These products have not been reviewed by the NOAA Office for Coastal Management (OCM) and any conclusions drawn from the analysis of this information are not the responsibility of NOAA or OCM. The data are available upon request via email at: coastal.info@noaa.gov. Please provide the name of the data set and "DEM Request" in the subject line.

The FTP versions of the LAZ files have GPS-derived orthometric heights. To adjust to the Local Mean Sea Level (LMSL) use the following value to correct the vertical heights: -0.601 m.

Original contact information:

Contact Org: JALBTCX

Title: Data Production Manager

Phone: 228-252-1131

Email: JALBTCX@usace.army.mil

Purpose:

These data were collected as a part of the National Coastal Mapping Project (NCMP) to depict the elevations above and below the water in the Hawaii coastal zone.

Notes:

10393

Supplemental Information:

A footprint of this data set may be viewed in Google Earth at:

https://coast.noaa.gov/htdata/lidar1_z/geoid12b/data/5018/supplemental/hi2013_usace_ncmp_lanai_m5018.kmz

Keywords

Theme Keywords

Thesaurus Keyword
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
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
GCMD Data Center Keywords v7 DOD/USARMY/USACE/SAM/MOBILE/OPJ/JALBTCX > Department of Defense
GCMD Data Center Keywords v7 Spatial Data Branch
GCMD Data Center Keywords v7 United States Army
GCMD Earth Sciences Keywords v7 HUMAN DIMENSIONS > LAND USE/LAND COVER > LAND USE CLASSES
GCMD Earth Sciences Keywords v7 SOLID EARTH > GEOMORPHOLOGY > COASTAL LANDFORMS/PROCESSES
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 Categories oceans
ISO 19115 Topic Category elevation
ISO 19115 Topic Category elevation
ISO 19115 Topic Category imageryBaseMapsEarthCover
ISO 19115 Topic Category oceans
NOAA NOS Harvest Catalog Thesaurus CoRIS
None Bathymetry
None Classified LAS
None Coastal Zone Mapping Imaging Lidar (CZMIL)
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 2013
None November

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
CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Lanai (21N156W0002)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii > Lanai (21N156W0002)
Geographic Names Information System Hawaii
Geographic Names Information System Lanai
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
Entity Attribute Overview:

LAS 1.2 format (classes 1,2,29)

Entity Attribute Detail Citation:

none

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 Office for Coastal Management or its partners.

Support Roles

Data Steward

CC ID: 675375
Date Effective From: 2016-04-13
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: 675377
Date Effective From: 2016-04-13
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: 675378
Date Effective From: 2016-04-13
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: 675376
Date Effective From: 2016-04-13
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: 675381
W° Bound: -156.99784
E° Bound: -156.85556
N° Bound: 20.828278
S° Bound: 20.72647

Extent Group 1 / Time Frame 1

CC ID: 675380
Time Frame Type: Range
Start: 2013-11-07
End: 2013-11-08

Spatial Information

Spatial Representation

Representations Used

Vector: 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=5018;

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. Acknowledgment 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: 741122
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=5018
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: 741123
Download URL: https://coast.noaa.gov/htdata/lidar1_z/geoid12b/data/5018
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 741125
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 741126
URL: https://coast.noaa.gov
URL Type:
Online Resource

URL 3

CC ID: 741127
URL: https://coast.noaa.gov/htdata/lidar1_z/geoid12b/data/5018/supplemental/hi2013_usace_ncmp_lanai_m5018.kmz
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: kmz
Description:

This graphic shows the lidar footprint for the 2013 USACE NCMP topobathy lidar project in Lanai, Hawaii.

Activity Log

Activity Log 1

CC ID: 675424
Activity Date/Time: 2016-09-12
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 675423
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: 718309
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 741124
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: None | Quantitative Test Explanation: These data are not attributed.

Horizontal Positional Accuracy:

Topo data - Compiled to meet 1 m @ 95% confidence level. Bathy data - compiled to meet 3.5 + 0.05*d m @ 95% confidence level (d is depth).

Vertical Positional Accuracy:

Topo data - 19.6 cm @ 95% confidence level (10 cm RMSE). Bathy shallow FOV data - SQRT((0.25^2)+((0.0075d)^2)) m at @ 95% confidence level. Bathy deep FOV data - SQRT((0.30^2)+((0.013d)^2)) m @ 95% confidence level (d is depth).

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 CZMIL sensor specifications.

Lineage

Process Steps

Process Step 1

CC ID: 675364
Description:

These data were collected using the CZMIL system. It is owned and operated by the U.S. Army Corps of Engineers (USACE). The system collects topobathy lidar data at 10 kHz and RGB imagery at 2 Hz. A CASI-1500 hyperspectral line scanner is integrated with the system as well. Aircraft position, velocity and acceleration information are collected through a combination of Novatel and POS A/V 510 equipment. All raw data streams are transferred to the office for downloading and processing in CZMIL's Hydro Fusion software. Aircraft position data are processed using POSPac software and the results are combined with the lidar data to produce 3-D positions for each lidar shot. Upon inspection and QA/QC in the software packages Fledermaus and PFM_ABE, anomalous data are flagged as invalid and have the withheld bit set. PFM_ABE 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: 2013-11-07 00:00:00

Process Step 2

CC ID: 675365
Description:

AS files are imported into GeoCue V2014.1.21.1, 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 (29). 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 1km boxes, one Classified LAS file per box and converted to NAD83 2011 Geoid 12B.. 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 29 (valid bathymetric data). Then the LAS files are adjusted to Local Mean Sea Level (LMSL). The Geoid12B to HI LMSL vertical adjustment value derived from published NGS control point datasheets for HI, The Lanai, was -0.601m.

Process Date/Time: 2016-02-18 00:00:00

Process Step 3

CC ID: 675366
Description:

The NOAA Office for Coastal Management (OCM) received 56 files in las format from JALBTCX. The files contained LiDAR intensity and elevation measurements for the island of Lanai. Tiles were delivered horizontally referenced to geographic coordinate system (decimal degrees) and vertical heights were to the Hawaii ellipsoid in meters. OCM performed the following processing on the data for storage purposes and to make it available within Digital Coast:

1. The LAS files were compressed to laz format using laszip.

2. Data filenames were standardized to OCM file naming convention (retaining USACE names).

3. The LAStools software scripts lasinfo, lasvalidate, and lasduplicate were run on the laz files.

4. The files were sorted by gpstime and zipped to database and to http.

Process Date/Time: 2016-03-29 00:00:00

Catalog Details

Catalog Item ID: 49749
GUID: gov.noaa.nmfs.inport:49749
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-15 15:22+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2021-11-30 16:28+0000
Metadata Record Published: 2018-03-13
Owner Org: OCMP
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2019-03-14