2004 Alaska Lidar Mapping

Office for Coastal Management
Data Set (DS) | ID: 48143 | Published / External
Created: 2017-11-14   |   Last Modified: 2023-10-30

Parent: Lidar
Project (PRJ) | ID: 37231

ID: 48143
Data Set (DS)

* Discovery
• First Pass
» Metadata Rubric

Item Identification

* » Title 2004 Alaska Lidar Mapping
Short Name ak2004_m23_metadata
* Status Completed
Creation Date  
Revision Date  
• Publication Date 2006-03-22
* » Abstract

The data sets are generated using the OPTECH ALTM 70 kHz LIDAR system mounted onboard AeroMap's twin-engine

Cessna 320 aircraft. Classified data sets such as this one may have varying posting due to some LIDAR pulses not

reaching the ground caused by data anomalies. Accuracy statements are based on areas of moderate terrain. Diminished

accuracies are to be expected in areas of extreme terrain and dense vegetation. The accuracy of each point is expected

to meet the vertical accuracy standard; however, derived products may be less accurate in extreme terrain and dense

vegetation due to a lesser number of points defining the bare-earth in these areas. The data were QA/QC'ed but some

data holidays still exist. This data represents the last return data only.

Original contact information:

Contact Org: NOAA Office for Coastal Management

Phone: 843-740-1202

Email: coastal.info@noaa.gov
* Purpose

The purpose of this data set is to provide a source for current and accurate digital elevation models (DEM) with

vertical accuracy's of 30cm root mean square error (RMSE) or better. These data were acquired at flying heights of 1200

and 2000 meters Above Mean Terrain (AMT) with post spacing planned for 1 and 2 meters. This data is not recommended for

design mapping or engineering. A DEM is used as a fundamental layer of information in Geographic Information Systems (GIS).

A number of the priority layers of spatial information recognized by the National Spatial Data Infrastructure may be derived

from LIDAR DEMs, including elevation, hydrography, slope, aspect, and shoreline delineation.
Notes

10166
Other Citation Details
• Supplemental Information

The survey reports for 2004 Alaska Lidar Mapping may be viewed at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/23/supplemental/index.html

There are two reports, one for area ak0301 (Shishmaref) and one for area ak0302 (Kivalina).
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
None Cartography
None Geodesy
None Geography
None Height
None Hydrography
None Interferometric
None Mapping
None Photogrammetry
None Radar
None Remote
None Sensing
None Stereophotogrammetry
None Terrain
   
   
   

Temporal Keywords

Thesaurus Keyword
None 2004
None August
None July
   
   
   

* Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA
   
   
   

Stratum Keywords

Thesaurus Keyword
None Bald
None Earth
None First
None Ground
None Surface
   
   
   

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 Unknown
Maintenance Note
» Data Presentation Form  
• Entity Attribute Overview
Entity Attribute Detail Citation
Entity Attribute Detail URL  
Distribution Liability

Any conclusions drawn from analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners.
Data Set Credit This data set was developed for the NOAA OCM by AeroMap US.

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 2006-03-22
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 2006-03-22
Date Effective To
Organization Office for Coastal Management (OCM)
Address 2234 South Hobson Avenue
Charleston, SC 29405-2413
Email Address  
Phone  
Fax  
Mobile  
URL https://www.coast.noaa.gov/
Business Hours  
Contact Instructions
* » Support Role Metadata Contact
* » Date Effective From 2006-03-22
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 2006-03-22
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 Ground Condition

Extent Group 1

Extent Description

Extent Group 1 / Geographic Area 1

* » W° Bound -168.530215
* » E° Bound -162.633189
* » N° Bound 68.35997
* » S° Bound 65.594656
* » Description

Extent Group 1 / Vertical Extent

EPSG Code
Vertical Minimum
Vertical Maximum

Extent Group 1 / Time Frame 1

* » Time Frame Type Discrete
* » Start 2004-07-21
End  
Alternate Start As Of Info  
Alternate End As Of Info  
Description

Extent Group 1 / Time Frame 2

* » Time Frame Type Discrete
* » Start 2004-07-22
End  
Alternate Start As Of Info  
Alternate End As Of Info  
Description

Extent Group 1 / Time Frame 3

* » Time Frame Type Discrete
* » Start 2004-08-01
End  
Alternate Start As Of Info  
Alternate End As Of Info  
Description

Extent Group 1 / Time Frame 4

* » Time Frame Type Discrete
* » Start 2004-08-05
End  
Alternate Start As Of Info  
Alternate End As Of Info  
Description

Extent Group 1 / Time Frame 5

* » Time Frame Type Discrete
* » Start 2004-08-06
End  
Alternate Start As Of Info  
Alternate End As Of Info  
Description

Extent Group 1 / Time Frame 6

* » Time Frame Type Discrete
* » Start 2004-08-11
End  
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?  
Vector Representation Used? Yes
Text / Table Representation Used?  
TIN Representation Used?  
Stereo Model Representation Used?  
Video Representation Used?  

Grid Representation

Dimension Count
Cell Geometry
Transformation Parameter Available?  

Axis Dimension
Dimension Type
Size
Resolution
Resolution Units
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:6782

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  

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

This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer

The data set is dynamically generated based on user-specified parameters.

;
• » 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 2007
End Date Present
» Download URL https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=23
Distributor Office for Coastal Management (OCM) (2006-03-22 - Present)
File Name Customized Download
Description

Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
File Date/Time  
File Type (Deprecated) Zip
Distribution Format  
File Size  
Application Version  
Compression Zip
Review Status  
Start Date 2007
End Date Present
» Download URL https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/23/index.html
Distributor Office for Coastal Management (OCM) (2006-03-22 - Present)
File Name Bulk Download
Description

Simple download of data files in orthometric.
File Date/Time  
File Type (Deprecated) LAZ
Distribution Format LAS/LAZ - LASer
File Size  
Application Version  
Compression Zip
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/23/supplemental/AK0301_REVISED.pdf
Name Data report flights 0301
URL Type Online Resource
File Resource Format Pdf
Description

Report

URL https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/23/supplemental/AK0302_REVISED.pdf
Name Data report 0302
URL Type Online Resource
File Resource Format Pdf
Description

Data report for 0302
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 2016-05-23
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

All data products were processed to meet 0.6 & 1.0 meters RMSE or better in horizontal

accuracy.
Vertical Positional Accuracy

All data products were processed to meet 30cm RMSE or better in vertical accuracy.

We recommend a ground quality control check of the data set. This data is not recommended for design grade mapping or

engineering.
Quantitation Limits
Bias
Comparability
Completeness Measure

Cloud Cover: 0
Precision
Analytical Precision
Field Precision
Sensitivity
Detection Limit
Completeness Report

Complete
Conceptual Consistency

Unknown
» 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 point cloud
Contact Role Type Originator
Contact Type Organization
Contact Name Aeromap
Publish Date  
Extent Type  
Extent Start Date/Time  
Extent End Date/Time  
Scale Denominator  
Citation URL  
Citation URL Name  
Citation URL Description
Source Contribution
Citation Title
Contact Role Type
Contact Type
Contact Name
Publish Date
Extent Type
Extent Start Date/Time
Extent End Date/Time
Citation URL
Citation URL Name
Citation URL Description
Scale Denominator
Citation Title
Contact Role Type
Contact Type
Contact Name
Publish Date
Extent Type
Extent Start Date/Time
Extent End Date/Time
Citation URL
Citation URL Name
Citation URL Description
Scale Denominator
Citation Title
Contact Role Type
Contact Type
Contact Name
Publish Date
Extent Type
Extent Start Date/Time
Extent End Date/Time
Citation URL
Citation URL Name
Citation URL Description
Scale Denominator

Process Steps

Process Step Number 1
» Description

The raw points for the point cloud data product were captured using AeroMap U.S.'s twin-engine Cessna equipped with our OPTECH ALTM 70 kHz LIDAR data acquisition system. The system includes differential GPS and inertial measurement systems to provide superior accuracy. The flying height is 1200 & 2000 meters Above Mean Terrain (AMT). These data were post-processed utilizing Optech's REALM (Version 3.5.4) software, which applies AeroMap U.S.'s Applanix Inertial Measurement Unit (IMU) values to the acquired Airborne Global Positioning Systems (ABGPS) data. These results are then applied to the acquired LIDAR data points and output to a LIDAR accuracy standard (LAS) format in a WGS 84, Universal Transverse Mercator (UTM), Zone 3, Meters coordinate system. Using Bentley's Microstation V8 LIDAR these data were imported in LAS format. Using TerraSolid's TerraScan (version 6.04) software, these data were imported into a TerraScan project files (PRJ) and converted (on import) to a binary files, no data were classified, all original "point cloud" data as output from REALM. These data were then output to the deliverable ASCII, space delimited, CTIXYZ format, (see attribute section for explanation of ASCII file syntax).
Process Date/Time 2006-03-24 00:00:00
Process Contact  
Phone (Voice)  
Email Address  
Source  
Process Step Number 2
» Description

Created initial metadata
Process Date/Time 2006-03-24 00:00:00
Process Contact  
Phone (Voice)  
Email Address  
Source Lidar point cloud
Process Step Number 3
» Description

The NOAA Office for Coastal Management (OCM) received files in LAS format. The files contained lidar intensity and elevation measurements. OCM performed the following processing on the data to make it available within the Lidar Data Retrieval Tool (LDART):

1. All data points in the ASCII files were projected geographic decimals degrees using the USGS General Cartographic

Transformation Package (GCTP) software.

2. All ASCII files containing points collected on the same date were combined into a single file and sorted by latitude.

3. The sorted files were then converted to binary LAS files and the las header fields were updated.

4. Data was QA/QC'ed and many points removed - there still remains several 'data holidays' as unique outliers in otherwise

ordered areas. They can be manually edited by user if required. This data represents the last return data only.
Process Date/Time 2007-02-09 00:00:00
Process Contact Office for Coastal Management (OCM)
Phone (Voice)  
Email Address  
Source Lidar point cloud
Process Step Number
» Description
Process Date/Time
Process Contact
Phone (Voice)
Email Address
Source
Process Step Number
» Description
Process Date/Time
Process Contact
Phone (Voice)
Email Address
Source
Process Step Number
» 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

Platform Unavailable Reason  
Identifier
Docucomp UUID
Description

Mounted Instruments
Identifier  
Identifier  
Identifier  
Identifier
Docucomp UUID
Description

Mounted Instruments
Identifier  
Identifier  
Identifier  
Identifier
Docucomp UUID
Description

Mounted Instruments
Identifier  
Identifier  
Identifier  

FAQs

Date
Author
Question
Answer

Child Items

Rubric scores updated every 15m

Score Type Title
  Entity (ENT) *.xyz
  Entity (ENT) C
  Entity (ENT) I
  Entity (ENT) T
  Entity (ENT) X
  Entity (ENT) Y
  Entity (ENT) Z
     
     
     

Related Items

Item Type Relationship Type Title
     
     
     

Catalog Details

Catalog Item ID 48143
Metadata Record Created By Anne Ball
Metadata Record Created 2017-11-14 14:19+0000
Metadata Record Last Modified By Kirk Waters
» Metadata Record Last Modified 2023-10-30 14:42+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
Tags