gov.noaa.nmfs.inport:50155
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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
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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)
2009 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Douglas Co.
wa2009_pslc_douglas_m2605_metadata
2013-12-02
publication
NOAA/NMFS/EDM
50155
https://www.fisheries.noaa.gov/inport/item/50155
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Full Metadata Record
View the complete metadata record on InPort for more information about this dataset.
information
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Citation URL
Online Resource
download
https://coast.noaa.gov
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Citation URL
Online Resource
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Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data of the Douglas
County PUD area of interest (AOI) east of Wenatchee, WA on May 2nd - May 27th, 2009. The total
area of delivered LiDAR is 105,134 acres (Figure 1). The requested area was expanded to include
a 100 m buffer to ensure complete coverage and adequate point densities around survey area
boundaries.
Provide high resolution terrain elevation and land cover elevation data.
Please credit the Puget Sound LiDAR Consortium (PSLC) for these data. The PSLC is supported by the Puget Sound Regional Council,
the National Aeronautical and Space Administration (NASA), the United States Geological Survey (USGS) and numerous partners
in local, state, and tribal government.
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/geoid18/2605/supplemental/wa2009_pslc_douglas.KMZ
This graphic shows the lidar coverage for the Douglas County, Washington area collected in 2009.
kmz
LAZ
theme
Lidar - partner (no harvest)
project
InPort
otherRestrictions
Cite As: OCM Partners, [Date of Access]: 2009 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Douglas Co. [Data Date Range], https://www.fisheries.noaa.gov/inport/item/50155.
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 Watershed Sciences, PSLC, NOAA, the Office for Coastal Management or its partners.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
50155
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocmp/dmp/pdf/50155.pdf
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NOAA Data Management Plan (DMP)
NOAA Data Management Plan for this record on InPort.
information
crossReference
vector
eng; US
elevation
-120.3249854
-119.9999855
47.23047465
47.52499416
A footprint of this data set may be viewed in Google Earth at:
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2605/supplemental/wa2009_pslc_douglas.KMZ
Reports explaining collection and quality assurance is available at:
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2605/supplemental/wa2009_pslc_douglas.pdf
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=2605
WWW:LINK-1.0-http--link
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https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2605/index.html
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Bulk Download
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dataset
Accuracy
Elevations are recorded in floating-point meters and the vertical datum is ellipsoidal (GEOID03).
Horizontal Positional Accuracy
Horizontal positional accuracy for LiDAR is dependent upon the quality of
the GPS/INS solution, sensor calibration and ground conditions at the time of data capture.
The standard system results for horizontal accuracy are less than 1 meter. Not reported, assumed as 1.0 m.
; Quantitative Value: 1.0 meters, Test that produced the value: See LiDAR data report.
Vertical Positional Accuracy
Review the report cited as supplemental information above for details on accuracy assessment.; Quantitative Value: 0.039 meters, Test that produced the value:
Summary statistics for point resolution and
accuracy (relative and absolute) of the LiDAR data collected in the Douglas County
survey area are presented below in terms of central tendency, variation around
the mean, and the spatial distribution of the data (for point resolution by bin).
Calculated to 0.13 ft RMSEz.
Completeness Report
LiDAR data has been collected and processed for all areas within the project study area.
Conceptual Consistency
LiDAR survey datasets were referenced to the 1 Hz static ground GPS data collected over presurveyed
monuments with known coordinates. While surveying, the aircraft collected 2 Hz kinematic GPS data,
and the onboard inertial measurement unit (IMU) collected 200 Hz aircraft attitude data. Leica IPAS
Suite was used to process the kinematic corrections for the aircraft. The static and kinematic GPS
data were then post-processed after the survey to obtain an accurate GPS solution and aircraft
positions. Waypoint was used to develop a trajectory file that includes corrected aircraft position
and attitude information. The trajectory data for the entire flight survey session were incorporated
into a final smoothed best estimated trajectory (SBET) file that contains accurate and continuous
aircraft positions and attitudes.
Acquisition.
The LiDAR survey uses a Leica ALS50 Phase II laser system. For the Douglas County survey area,
the sensor scan angle was +/- 14 degrees from nadir with a pulse rate designed to yield an
average native density (number of pulses emitted by the laser system) of = 8 points per
square meter over terrestrial surfaces. All survey areas were surveyed with an opposing
flight line side-lap of more than 50% (more than 100% overlap) to reduce laser shadowing and increase surface
laser painting. The Leica ALS50 Phase II system allows up to four range measurements (returns)
per pulse, and all discernable laser returns were processed for the output dataset. It is not
uncommon for some types of surfaces (e.g. dense vegetation or water) to return fewer pulses
than the laser originally emitted. These discrepancies between 'native' and 'delivered'
density will vary depending on terrain, land cover and the prevalence of water bodies.
2009-05-02T00:00:00
Resolved kinematic corrections for aircraft position data using kinematic aircraft GPS and
static ground GPS data.
Software - Waypoint GPS v.8.10, Trimble Geomatics Office v.1.62
Developed a smoothed best estimate of trajectory (SBET) file that blends post-processed aircraft
position with attitude data Sensor head position and attitude were calculated throughout the survey.
The SBET data were used extensively for laser point processing.
Software - IPAS v.1.4
Calculated laser point position by associating SBET position to each laser point return time, scan
angle, intensity, etc. Created raw laser point cloud data for the entire survey in *.las (ASPRS v1.1) format.
Software - ALS Post Processing Software v.2.69
Imported raw laser points into manageable blocks (less than 500 MB) to perform manual relative
accuracy calibration and filter for pits/birds. Ground points were then classified for individual
flight lines (to be used for relative accuracy testing and calibration).
Software - TerraScan v.9.001
Using ground classified points per each flight line, the relative accuracy was tested. Automated
line-to-line calibrations were then performed for system attitude parameters (pitch, roll, heading),
mirror flex (scale) and GPS/IMU drift. Calibrations were performed on ground classified points from
paired flight lines. Every flight line was used for relative accuracy calibration.
Software - TerraMatch v.9.001
Position and attitude data were imported. Resulting data were classified as ground and nonground
points. Statistical absolute accuracy was assessed via direct comparisons of ground classified
points to ground RTK survey data. Data were then converted to orthometric elevations (NAVD88)
by applying a Geoid03 correction. Ground models were created as a triangulated surface and exported
as ArcInfo ASCII grids at a 3-foot pixel resolution.
Software - TerraScan v.9.001, ArcMap v.9.3, TerraModeler v.9.001
The NOAA Office for Coastal Management (OCM) downloaded topographic files in LAZ format from PSLC's website.
The files contained lidar easting, northing, elevation, intensity, return number, class, scan angle
and GPS time measurements; the data was received in state plane Washington (in feet) and vertical coordinates were
referenced to NAVD88 in feet using the Geoid03 model.
OCM performed the following processing for data storage and Digital Coast provisioning purposes:
1. The All-Return LAZ files were checked for bad elevations
2. The laz files were converted from a Projected Coordinate System (SP 4601) to a Geographic Coordinate system (NAD83)
3. The laz files were then converted to ellipsoidal vertical units in meters using the geoid03 conversion.
2013-12-02T00:00:00