2013 Topographic Lidar DEM: Oahu

Office for Coastal Management
Data Set (DS) | ID: 52020 | Published / External
Created: 2018-03-13   |   Last Modified: 2024-01-10

Parent: DEMs
Project (PRJ) | ID: 47844

ID: 52020
Data Set (DS)

* Discovery
• First Pass
» Metadata Rubric

Item Identification

* » Title 2013 Topographic Lidar DEM: Oahu
Short Name 2013 Oahu DEM m8497
* Status Completed
Creation Date  
Revision Date  
• Publication Date 2015-04-14
* » Abstract

The Oahu, Hawaii Elevation Data Task Order involves collecting and delivering topographic elevation point data derived from multiple return light detection and ranging (LiDAR) measurements on the island of Oahu in Hawaii. The Statement of Work (SOW) for the area covering the northern 2/3 of Oahu was developed by the National Oceanic and Atmospheric Administration's (NOAA) Office for Coastal Management. A separate but related task order was issued by the USGS National Geospatial Technical Operations Center (NGTOC), under their Geospatial Products and Services Contract (GPSC), to leverage the same resources committed to the NOAA LiDAR project for the acquisition of LiDAR data in the southern 1/3 portion of Oahu. The combined task orders yielded one study area covering the entire island of Oahu. The data collected for the island of Oahu will exhibit Hydro Flattened DEMs for inclusion into the NED. The purpose of the data is for use in coastal management decision making, including applications such as flood plain mapping and water rights management. The point density for this data set was specified in the SOW at 1.15 pts/m2. The NOAA Office for Coastal Management tested the NPS (nominal pulse spacing) for this data set in April 2015. The NPS was determined to be 0.84 m. The data used in the NPS determination were the first returns of classes 1,2,9, and 10.
* Purpose

Lifts are planned to meet project specifications and are flown under cloud-free conditions in order to collect LIDAR points at an average of 1.0 meter point spacing. This allows the user to create Intensity Images, Break Lines, Hydro Flattened DEMs and fully Classified LiDAR LAS files.
Notes

10210
Other Citation Details
• Supplemental Information
DOI (Digital Object Identifier)  
DOI Registration Authority  
DOI Issue Date  

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 > 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
None Surface
None Terrain
   
   
   

Temporal Keywords

Thesaurus Keyword
   
   
   

* Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > HAWAII
Global Change Master Directory (GCMD) Location Keywords OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS > OAHU
CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Oahu (21N157W0003)
CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu Island > Oahu (21N157W0003)
   
   
   

Stratum Keywords

Thesaurus Keyword
   
   
   

Instrument Keywords

Thesaurus Keyword
   
   
   

Platform Keywords

Thesaurus Keyword
   
   
   

Physical Location

• » Organization Office for Coastal Management
• » City Charleston
• » State/Province SC
• Country  
• » Location Description

Data Set Information

* Data Set Scope Code Data Set
• Data Set Type  
• Maintenance Frequency As Needed
Maintenance Note
» Data Presentation Form  
• 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 USGS, USDA NRCS, NOAA, the Office for Coastal Management or its partners.
Data Set Credit Photo Science, Inc. acquired and post-processed the LiDAR for the island of Oahu in Hawaii.

Support Roles

» At least one Distributor Org, one Metadata Contact, one Point of Contact, and one Data Steward should be listed.
* » Support Role Data Steward
* » Date Effective From 2015-04-14
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
* » Date Effective From 2015-04-14
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
* » Date Effective From 2015-04-14
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
* » Date Effective From 2015-04-14
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
* » Date Effective From
Date Effective To
* » Contact
* Contact Instructions
* » Support Role
* » Date Effective From
Date Effective To
* » Contact
* Contact Instructions
* » Support Role
* » Date Effective From
Date Effective To
* » Contact
* Contact Instructions

Extents

Currentness Reference Publication Date

Extent Group 1

Extent Description

Extent Group 1 / Geographic Area 1

* » W° Bound -158.294904
* » E° Bound -157.645193
* » N° Bound 21.727501
* » S° Bound 21.251804
* » Description

Extent Group 1 / Vertical Extent

EPSG Code
Vertical Minimum
Vertical Maximum

Extent Group 1 / Time Frame 1

* » Time Frame Type Range
* » Start 2013-06-01
End 2013-08-09
Alternate Start As Of Info  
Alternate End As Of Info  
Description

Spatial Information

Spatial Resolution

Angular Distance  
Angular Distance Units  
Horizontal Distance  
Horizontal Distance Units  
Vertical Distance  
Vertical Distance Units  
Equivalent Scale Denominator  
Level of Detail Description

Spatial Representation

Grid Representation Used? Yes
Vector Representation Used?  
Text / Table Representation Used?  
TIN Representation Used?  
Stereo Model Representation Used?  
Video Representation Used?  

Grid Representation

Dimension Count 2
Cell Geometry Point
Transformation Parameters Available? Yes

Axis Dimension
Dimension Type Column
Size 66857
Resolution Type Length
Resolution 1.0
Resolution Units Meter
Description

Axis Dimension
Dimension Type
Size
Resolution
Resolution Units
Resolution Type
Description

Grid Representation

Dimension Count
Cell Geometry
Transformation Parameter Available?  

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Size
Resolution
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Resolution Type
Description

Axis Dimension
Dimension Type
Size
Resolution
Resolution Units
Resolution Type
Description

Vector Representation

Topology Level
Complex Object Present?  
Complex Object Count
Composite Object Present?  
Composite Object Count
Curve Object Present?  
Curve Object Count
Point Object Present?  
Point Object Count
Solid Object Present?  
Solid Object Count
Surface Object Present?  
Surface Object Count

Reference Systems

Reference System

EPSG Code EPSG:6634

Horizontal Resolution
Horizontal Encoding Method  
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Longitude Resolution  
Coordinate X Resolution  
Coordinate Y Resolution  
Row Resolution  
Column Resolution  
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Reference Meridian  

Vertical Resolution
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Vertical Resolution  
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Reference System

EPSG Code

Horizontal Resolution
Horizontal Encoding Method
Latitude Resolution
Longitude Resolution
Coordinate X Resolution
Coordinate Y Resolution
Row Resolution
Column Resolution
Horizontal Units
Distance Resolution
Distance Units
Bearing Resolution
Bearing Units
Reference Direction
Reference Meridian

Vertical Resolution
Vertical Encoding Method
Vertical Resolution
Vertical Units

Access Information

Data License  
Data License URL  
Data License Statement
* » Security Class Unclassified
* Security Classification System
Security Handling Description
• Data Access Policy
» Data Access Procedure
• » 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. These data depict the heights at the time of the survey and are only accurate for that time.

This data is in the public domain.
Metadata Access Constraints
Metadata Use Constraints

Distribution Information

Start Date 2018-03-13
End Date Present
» Download URL https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8497
Distributor NOAA Office for Coastal Management (NOAA/OCM) (2015-04-14 - Present)
File Name Customized Download
Description

Create custom data files by choosing data area, map projection, file format, etc.
File Date/Time  
File Type (Deprecated) Zip
Distribution Format  
File Size  
Application Version  
Compression Zip
Review Status  
Start Date 2018-03-13
End Date Present
» Download URL https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/NOAA_Oahu_DEM_2013_8497/index.html
Distributor NOAA Office for Coastal Management (NOAA/OCM) (2015-04-14 - Present)
File Name Bulk Download
Description

Simple download of data files.
File Date/Time  
File Type (Deprecated) IMG
Distribution Format IMG - ERDAS Imagine
File Size  
Application Version  
Compression  
Review Status  
Start Date
End Date
» Download URL
Distributor
File Name
Description
File Date/Time
File Type
FGDC Content Type
File Size
Application Version
Compression
Review Status
Start Date
End Date
» Download URL
Distributor
File Name
Description
File Date/Time
File Type
FGDC Content Type
File Size
Application Version
Compression
Review Status
Start Date
End Date
» Download URL
Distributor
File Name
Description
File Date/Time
File Type
FGDC Content Type
File Size
Application Version
Compression
Review Status

Archive Information

Location
File Identifier
File Name
URL
Description
DOI
Archive Date
Archive Update Frequency
Location
File Identifier
File Name
URL
Description
DOI
Archive Date
Archive Update Frequency
Location
File Identifier
File Name
URL
Description
DOI
Archive Date
Archive Update Frequency

URLs

URL https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/3655/supplemental/hi2013_noaa_oahu_surveyreport_m3655.pdf
Name Survey Report
URL Type Online Resource
File Resource Format pdf
Description

Report of the ground survey supporting this collection.
URL https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/3655/supplemental/hi2013_noaa_oahu_collectionreport_m3655.pdf
Name Collection Report
URL Type Online Resource
File Resource Format PDF
Description

Project report from the contractor.
URL https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/3655/supplemental/hi2013_noaa_oahu_m3655.kmz
Name Browse Graphic
URL Type Browse Graphic
File Resource Format kmz
Description

This graphic shows the lidar coverage for the 2013 collection of topographic lidar in Oahu.
URL https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/3655/supplemental/hi2013_noaa_oahu_lidarreport_m3655.pdf
Name Quality Assurance Report
URL Type Online Resource
File Resource Format pdf
Description

QA report assessing the lidar data used to create this DEM.
URL
Name
URL Type
File Resource Format
Description
URL
Name
URL Type
File Resource Format
Description
URL
Name
URL Type
File Resource Format
Description

Activity Log

Activity Time 2017-08-01
Activity Type  
Responsible Party  
Description

Date that the source FGDC record was last modified.
Activity Time 2017-11-14
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
Activity Type  
Responsible Party  
Description

Partial upload of Positional Accuracy fields only.
Activity Time 2018-03-13
Activity Type  
Responsible Party  
Description

Partial upload to move data access links to Distribution Info.
Activity Time
Activity Type
Responsible Party
Description
Activity Time
Activity Type
Responsible Party
Description
Activity Time
Activity Type
Responsible Party
Description

Issues

Issue Date
Author
Issue
Issue Date
Author
Issue
Issue Date
Author
Issue

Technical Environment

Description  
 

Data Quality

Representativeness
Accuracy
Analytical Accuracy
Horizontal Positional Accuracy

The LiDAR data was compiled to meet a 1 meter horizontal accuracy. The calibration of the LiDAR sensor itself and the calibration process of the data produced by this sensor ensure that this accuracy is met.; Quantitative Value: 1.0 meters, Test that produced the value: Value stated in meters
Vertical Positional Accuracy

The classified LiDAR data was tested by Photo Science, Inc. for vertical accuracy. Photo Science collected a total of 42 ground control points for use in verifying the vertical accuracy of the classified LiDAR data on the island of Oahu in Hawaii. These points were tested against the classified LiDAR data and a vertical adjustment was made to the classified LiDAR for each county in order to obtain a higher level of accuracy. All data are seamless from one tile to the next, no gaps or no data areas. The vertical unit of the data file is in meters with 2-decimal point precision. The Photo Science tested vertical accuracy for this data set was 8.7 cm RMSEz. An independent accuracy assessment was also done. NOAA OCM collected check points for the vertical accuracy determination. These points were then provided to Dewberry, who completed an independent accuracy assessment. The results of the independent assessment resulted in a FVA (Fundamental Vertical Accuracy) of 19.8 cm or an RMSEz of 10.1 cm.; Quantitative Value: 0.101 meters, Test that produced the value: The RMSEz for this data set is 10.1 cm as determined in the independent vertical assessment performed by Dewberry. The Fundamental vertical accuracy (FVA) was determined to be 19.8 cm in bare earth-open terrain areas. Consolidated vertical accuracy (CVA) of 26.8 cm in all classifications. And Supplemental Vertical Accuracy (SVA) of 25 cm for urban land covers and 33.2 cm in vegetative land covers.
Quantitation Limits
Bias
Comparability
Completeness Measure
Precision
Analytical Precision
Field Precision
Sensitivity
Detection Limit
Completeness Report

Datasets contain complete coverage of tiles
Conceptual Consistency

Deliverables were tested by Photo Science, Inc. for vertical accuracy. All data are seamless from one tile to the next, no gaps or no data areas.
» Quality Control Procedures Employed

Data Management

» Have Resources for Management of these Data Been Identified?  
» 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  
 
» 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  
 
» 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?  
 

Lineage

» Lineage Statement

Sources

Citation Title LiDAR
Contact Role Type  
Contact Type  
Contact Name  
Publish Date 2013-01-01
Extent Type Range
Extent Start Date/Time 2013-06-01
Extent End Date/Time 2013-08-09
Scale Denominator  
Citation URL  
Citation URL Name  
Citation URL Description
Source Contribution

LiDAR points were used to produce the deliverables. | Source Geospatial Form: digital data | Type of Source Media: Hard Drive
Citation Title
Contact Role Type
Contact Type
Contact Name
Publish Date
Extent Type
Extent Start Date/Time
Extent End Date/Time
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Citation URL Description
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Scale Denominator

Process Steps

Process Step Number 1
» Description

Applanix software was used in the post processing of the airborne GPS and inertial data that is critical to the positioning and orientation of the sensor during all flights. POSPac MMS provides the smoothed best estimate of trajectory (SBET) that is necessary for Optech's post processor to develop the point cloud from the LiDAR missions. The point cloud is the mathematical three dimensional collection of all returns from all laser pulses as determined from the aerial mission. At this point this data is ready for analysis, classification, and filtering to generate a bare earth surface model in which the above ground features are removed from the data set. The point cloud was manipulated within the Optech or Leica software; GeoCue, TerraScan, and TerraModeler software was used for the automated data classification, manual cleanup, and bare earth generation from this data. Project specific macros were used to classify the ground and to remove the side overlap between parallel flight lines.

All data was manually reviewed and any remaining artifacts removed using functionality provided by TerraScan and TerraModeler.

Class 2 LIDAR was used to create a bare earth surface model. The surface model was then used to heads-up digitize 2D breaklines of inland streams and rivers. Inland Ponds and Lakes of 2 acres or greater were also collected.

Elevation values were assigned to all Inland Ponds and Lakes using TerraModeler functionality.

Elevation values were assigned to all Inland Streams and Rivers using Photo Science proprietary software.

All Class 2 LIDAR data falling inside of the collected breaklines were then classified to Class 9 and Class 2 LIDAR data falling within a proximity of one meter will be classified to Class 10 using TerraScan macro functionality.

The breakline files were translated to ESRI Shapefile format using ESRI conversion tools.

Data was then run through additional macros to ensure deliverable classification levels matching LAS ASPRS Classification structure. GeoCue functionality was used to ensure correct LAS Version. In house software was used as a final QA/QC check to provide LAS Analysis of the delivered tiles.

Tiles were run through automated scripting within ArcMap and were combined with the Hydro Flattened Breaklines to create the 1 meter DEM. Final DEM tiles were clipped to the tile boundary in order to provide a seamless dataset.

A manual QA review of the tiles was completed in ArcMap and Global Mapper to ensure full coverage with no gaps or slivers within the project area.
Process Date/Time 2013-01-01 00:00:00
Process Contact  
Phone (Voice)  
Email Address  
Source LiDAR
Process Step Number 2
» Description

The NOAA Office for Coastal Management (OCM) received the DEM files in img format via hard drive from PhotoScience, Inc. Data were ingested into the Digital Coast Data Access Viewer.
Process Date/Time 2018-03-13 00:00:00
Process Contact NOAA Office for Coastal Management (NOAA/OCM)
Phone (Voice) (843) 740-1202
Email Address coastal.info@noaa.gov
Source  
Process Step Number 3
» Description

DEM data were found to be tagged with NAD83(2011) UTM zone 4, which is valid for Alaska. The proper tag should have been NAD83(PA11) UTM zone 4. The proper tagging was added and the data was converted to cloud optimized Tiff format at the same time. Note that the tagging does not have a vertical component, though the data are in ellipsoid heights.
Process Date/Time 2021-07-08 00:00:00
Process Contact NOAA Office for Coastal Management (NOAA/OCM)
Phone (Voice) (843) 740-1202
Email Address coastal.info@noaa.gov
Source  
Process Step Number
» Description
Process Date/Time
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Phone (Voice)
Email Address
Source
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» Description
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Process Contact
Phone (Voice)
Email Address
Source
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» Description
Process Date/Time
Process Contact
Phone (Voice)
Email Address
Source

Acquisition Information

Instruments

Instrument Unavailable Reason  
Identifier
Docucomp UUID
Instrument / Gear
Instrument Type
Description
Identifier
Docucomp UUID
Instrument / Gear
Instrument Type
Description
Identifier
Docucomp UUID
Instrument / Gear
Instrument Type
Description

Platforms

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Identifier
Docucomp UUID
Description

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Identifier  
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FAQs

Date
Author
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Answer

Child Items

Rubric scores updated every 15m

Score Type Title
     
     
     

Related Items

Item Type Relationship Type Title
Data Set (DS) Cross Reference 2013 NOAA Oahu Topographic Lidar

Point cloud from which the DEMs were generated.
     
     
     

Catalog Details

Catalog Item ID 52020
Metadata Record Created By Kirk Waters
Metadata Record Created 2018-03-13 15:35+0000
Metadata Record Last Modified By Kirk Waters
» Metadata Record Last Modified 2024-01-10 19:00+0000
Metadata Record Published 2024-01-10
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
Tags