gov.noaa.nmfs.inport:49622
eng
UTF8
dataset
OCM Partners
resourceProvider
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
2024-02-29T00:00:00
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
ISO 19115-2:2009(E)
NAD83(NSRS2007)
2008-11-12
publication
European Petroleum Survey Group
https://apps.epsg.org/api/v1/CoordRefSystem/4759/export/?format=gml
urn:ogc:def:crs:EPSG:4759
6.18.3
North American Vertical Datum of 1988 (NAVD88) (GEOID12B) meters
North American Vertical Datum of 1988 (NAVD88) (GEOID12B) meters
https://apps.epsg.org/api/v1/VerticalCoordRefSystem/5703/?api_key=gml
North American Vertical Datum of 1988 (NAVD88) (GEOID12B) meters
Link to Geographic Markup Language (GML) description of reference system.
information
resourceProvider
European Petroleum Survey Group
https://www.epsg.org/
European Petroleum Survey Group Geodetic Parameter Registry
Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
search
publisher
vertical
OGP
2006-11-28
false
urn:ogc:def:cs:EPSG::6499
Vertical CS. Axis: height (H). Orientation: up. UoM: meter.
Used in vertical coordinate reference systems.
urn:ogc:def:axis:EPSG::114
H
up
urn:ogc:def:crs:EPSG::5703
2009 Aero-Metric Inc. Topographic LiDAR: Yukon Flats, Alaska
ak2009_aerometric_yukonflats_m1467_metadata
2013-03
publication
NOAA/NMFS/EDM
49622
https://www.fisheries.noaa.gov/inport/item/49622
WWW:LINK-1.0-http--link
Full Metadata Record
View the complete metadata record on InPort for more information about this dataset.
information
https://coast.noaa.gov/dataviewer
WWW:LINK-1.0-http--link
Citation URL
Online Resource
download
https://coast.noaa.gov
WWW:LINK-1.0-http--link
Citation URL
Online Resource
download
This delivery contains point cloud data in LAS 1.2 format, classified in the following manner. Class 1: Unclassified and Class 2: Ground. Overlap points have been flagged as withheld. The timestamps are in absolute
GPS time minus 1 billion, in accordance with the LAS 1.2 documentation.
The following are the collection parameters and equipment used to create this data set.
Aircraft: Piper Navajo (N6GR)
Lidar System: Optech ALTM Gemini (03SEN145)
Approximate Collection Altitude (Above Mean Terrain): 3800 meters
Ground Speed: 160 kts
Pulse Rate Frequency: 33 kHz
Mirror Scan Frequency: 18 Hz
Scan Angle (+/-): 16 degrees
Beam Divergence: Narrow (0.25 mrad)
Scan Cutoff: 0.02 degrees
Accuracy statements are based on areas of moderate terrain, with points classified as ground. 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, derived products may be less accurate in areas of extreme terrain and dense vegetation due to a lesser number of points defining the ground in these areas.
Classified data sets such as this one may have varying posting due to some pulses not reaching the ground.
Original contact information:
Contact Name: Jacques Cloutier
Contact Org: Aero-Metric, Inc.
Title: Senior Geodetic Surveyor
Phone: (907) 272-4495
Email: aerometric@aerometric-ak.com
This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.
The purpose of this data set is to provide bare-earth processed lidar data over the project area Southwest of Fort Yukon, at an average point spacing of 2.3 meters.
completed
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
pointOfContact
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
custodian
asNeeded
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/1467/supplemental/ak2009_aerometric_yukonflats_footprint.KMZ
This graphic shows topographic LiDAR coverage for the Yukon Flats, Alaska.
kmz
Lidar - partner (no harvest)
project
InPort
otherRestrictions
Cite As: OCM Partners, [Date of Access]: 2009 Aero-Metric Inc. Topographic LiDAR: Yukon Flats, Alaska [Data Date Range], https://www.fisheries.noaa.gov/inport/item/49622.
NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
otherRestrictions
Access Constraints: None
otherRestrictions
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.
otherRestrictions
Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility
of Aero-Metric Inc, NOAA, the Office for Coastal Management or its partners.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
49622
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/49622.pdf
WWW:LINK-1.0-http--link
NOAA Data Management Plan (DMP)
NOAA Data Management Plan for this record on InPort.
information
crossReference
vector
eng; US
elevation
-146.740652
-145.033223
65.754782
66.592735
| Currentness: Ground Condition
2009-07-14
| Currentness: Ground Condition
2009-07-15
| Currentness: Ground Condition
2009-07-16
| Currentness: Ground Condition
2009-07-22
| Currentness: Ground Condition
2009-09-03
false
eng
false
none
NOAA Office for Coastal Management
(843) 740-1202
2234 South Hobson Ave
Charleston
SC
29405-2413
coastal.info@noaa.gov
https://coast.noaa.gov
WWW:LINK-1.0-http--link
NOAA Office for Coastal Management Website
NOAA Office for Coastal Management Home Page
information
distributor
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=1467
WWW:LINK-1.0-http--link
Customized Download
Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
download
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/1467/index.html
WWW:LINK-1.0-http--link
Bulk Download
Simple download of data files.
download
dataset
Horizontal Positional Accuracy
All these data products were acquired at 3800 meters above mean terrain (AMT) and have a horizontal accuracy of 1.15 meters, with a nominal point spacing of 2.3 meters as per manufacturer's specifications, not field verified.; Quantitative Value: 1.15 meters, Test that produced the value: Compiled to meet value (meters)
Vertical Positional Accuracy
These values were computed by verifying the ground classified lidar data against ground surveyed points at the Fort Yukon airport. The points were collected throughout the project area by John Seibert of Pro Survey Services.
We recommend additional ground truth surveys of the data set to verify the vertical accuracy has not changed due to natural causes, such as techtonic motion or freeze/thaw cycles, and non-natural causes such as road construction.
Without ground truth survey checks this data is not recommended for design grade mapping or engineering.
; Quantitative Value: 0.10 meters, Test that produced the value: Consolidated vertical accuracy at the 95th percentile along road and runway surfaces (meters).
Completeness Report
Complete
Conceptual Consistency
Data has been verified using surveyed check points around the Fort Yukon Airport within the project area. All data was collected to meet the National Standard for Spatial Database Accuracy (NSSDA).
Create a smoothed-best estimated trajectory (SBET) of the sensor at a rate of 200 Hz, by integrating the airborne GPS and IMU data The basis of the GPS coordinates were established using OPUS, and were referenced to
NAD83 (CORS96) with ellipsoidal heights. The mean GPS positional accuracy for this area was +/- 0.08 meters.
2009-07-15T00:00:00
Integrate SBET and raw laser data to produce point cloud data in LAS 1.2 format for each flight line.
2009-07-17T00:00:00
Compute the roll, pitch, heading, and mirror scale correction factors for each flight line, then apply corrections to the corresponding flight line.
2009-08-01T00:00:00
Automated classification of the bare-earth data from the lidar point cloud using a series of algorithms customized for the types of terrain encountered in the project.
2009-09-15T00:00:00
Manual classification of any data which appears to be bare-earth but was not properly classified using the automated methods.
2009-09-20T00:00:00
Create point clouds in LAS 1.2 format for all returns with GPS week timstamps.
2009-12-20T00:00:00
Convert point clouds with GPS week timestamps, to point clouds with absolute GPS timestamps, in LAS 1.2 format.
2009-11-14T00:00:00
Data verified using survey control points, located throughout the area.
2009-11-16T00:00:00
The NOAA Office for Coastal Management (OCM) received topographic files in LAS 1.2 format. The files contained lidar
elevation and intensity measurements. The data were received in projected coordinates of NAD83 UTM6N, meters
and were vertically referenced to NAVD88 orthometric elevations using GEOID06(Alaska). The vertical units of the data were
meters. OCM performed the following processing for data storage and Digital Coast provisioning purposes:
1. The topographic las files were converted from Projected Coordinates (NAD83 UTM6N, meters) to Geographic Coordinates (NAD83, decimal degrees).
2. The topographic las files were vertically converted from orthometric elevations (NAVD88) to ellipsoidal elevations (NAD83) with GEOID06.
2013-03-01T00:00:00
The vertical values in this data set have been converted to reference North American Vertical Datum of 1988 (NAVD88) (GEOID12B) meters, using the GEOID12B grids provided by the National Geodetic Survey.
Any datum and projection transformations were then done with the Office for Coastal Management 'datum_shift' program. Compression to an LAZ file was done with the LAStools 'laszip' program and can be unzipped with the same free program (laszip.org)
Processing notes:
2024-03-01T05:09:49
NOAA Office for Coastal Management
coastal.info@noaa.gov
processor