2010 King County (WA) Dept of Natural Resources and Parks Lidar: Cedar River
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:50161 | Updated: August 9, 2022 | Published / External
Summary
Short Citation
OCM Partners, 2025: 2010 King County (WA) Dept of Natural Resources and Parks Lidar: Cedar River, https://www.fisheries.noaa.gov/inport/item/50161.
Full Citation Examples
Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data and
true-color orthophotographs of King County, WA from March 18 to March 20, 2010.
The total area of combined study areas orthophotographs and LiDAR, including a
100 m buffer, is approximately 21,038 acres.
Original contact information:
Contact Name: Dan Eastman
Contact Org: King County Dept. of Natural Resources and Parks
Title: Senior Ecologist
Phone: 206-263-6319
Distribution Information
-
Create custom data files by choosing data area, product type, map projection, file format, datum, etc.
-
Simple download of data files.
None
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was collected and some parts of this data may no longer represent actual surface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.
Controlled Theme Keywords
elevation
Child Items
No Child Items for this record.
Contact Information
Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Extents
-122.21932256° W,
-121.9699449° E,
47.5011362° N,
47.3738203° S
2010-05-18
2010-05-19
2010-05-20
Item Identification
Title: | 2010 King County (WA) Dept of Natural Resources and Parks Lidar: Cedar River |
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Short Name: | wa2010_kcdnrp_cedarriver_m2533_metadata |
Status: | Completed |
Publication Date: | 2013-08-14 |
Abstract: |
Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data and true-color orthophotographs of King County, WA from March 18 to March 20, 2010. The total area of combined study areas orthophotographs and LiDAR, including a 100 m buffer, is approximately 21,038 acres. Original contact information: Contact Name: Dan Eastman Contact Org: King County Dept. of Natural Resources and Parks Title: Senior Ecologist Phone: 206-263-6319 |
Purpose: |
More information can be obtained from the LiDAR report. The link to the report can be found here: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2533/supplemental/wa2010_kingcountydnrp_cedarriver_LiDAR_Report.pdf |
Notes: |
10805 |
Supplemental Information: |
Support of the FEMA's FIRM program. A footprint of this data may be viewed in Google Earth at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2533/supplemental/wa2010_kingcountydnrp_cedarriver.KMZ A LiDAR Report from the vendor for this data set may be viewed here: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2533/supplemental/wa2010_kingcountydnrp_cedarriver_LiDAR_Report.pdf |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
ISO 19115 Topic Category |
elevation
|
UNCONTROLLED | |
None | TIN |
Physical Location
Organization: | Office for Coastal Management |
---|---|
City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
---|---|
Maintenance Frequency: | Unknown |
Entity Attribute Overview: |
Lidar points in LAZ format Classed 1,2,7 |
Entity Attribute Detail Citation: |
none |
Distribution Liability: |
Any conclusions drawn from the analysis of this information are not the responsibility of KC DNRP, WS, the Office for Coastal Management, or its partners. |
Support Roles
Data Steward
Date Effective From: | 2013-08-14 |
---|---|
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
Date Effective From: | 2013-08-14 |
---|---|
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
Date Effective From: | 2013-08-14 |
---|---|
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
Date Effective From: | 2013-08-14 |
---|---|
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
W° Bound: | -122.21932256 | |
---|---|---|
E° Bound: | -121.9699449 | |
N° Bound: | 47.5011362 | |
S° Bound: | 47.3738203 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Discrete |
---|---|
Start: | 2010-05-18 |
Extent Group 1 / Time Frame 2
Time Frame Type: | Discrete |
---|---|
Start: | 2010-05-19 |
Extent Group 1 / Time Frame 3
Time Frame Type: | Discrete |
---|---|
Start: | 2010-05-20 |
Spatial Information
Spatial Representation
Representations Used
Vector: | Yes |
---|
Access Information
Security Class: | Unclassified |
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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. |
Distribution Information
Distribution 1
Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2533 |
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Distributor: | |
File Name: | Customized Download |
Description: |
Create custom data files by choosing data area, product type, map projection, file format, datum, etc. |
Distribution 2
Download URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2533/index.html |
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Distributor: | |
File Name: | Bulk Download |
Description: |
Simple download of data files. |
URLs
URL 1
URL: | https://coast.noaa.gov/dataviewer |
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URL Type: |
Online Resource
|
URL 2
URL: | https://coast.noaa.gov |
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URL Type: |
Online Resource
|
URL 3
URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2533/supplemental/wa2010_kingcountydnrp_cedarriver.KMZ |
---|---|
Name: | Browse Graphic |
URL Type: |
Browse Graphic
|
File Resource Format: | kmz |
Description: |
This graphic shows the lidar coverage for the King County Cedar River Topographic LiDAR Survey |
Activity Log
Activity Log 1
Activity Date/Time: | 2016-05-23 |
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Description: |
Date that the source FGDC record was last modified. |
Activity Log 2
Activity Date/Time: | 2017-11-14 |
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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
Activity Date/Time: | 2018-02-08 |
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Description: |
Partial upload of Positional Accuracy fields only. |
Activity Log 4
Activity Date/Time: | 2018-03-13 |
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Description: |
Partial upload to move data access links to Distribution Info. |
Data Quality
Accuracy: |
Attribute accuracy is tested in the LiDAR processing stage. After classification of the LiDAR data, the 'bald earth' point class is compared to ground control collected within the project area. |
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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.; Quantitative Value: 1 meters, Test that produced the value: This value is computed by comparing ground control to an intensity based image derived from the classified LiDAR data and represents the RMSE of residuals on controls within the project area. |
Vertical Positional Accuracy: |
Vertical 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 vertical accuracy for this project was tested with a resultant RMSE of 0.030 meter (0.099 feet).; Quantitative Value: 0.03 meters, Test that produced the value: This value is computed by comparing ground control elevation to the classified LiDAR ground surface and represents the RMSE of residuals on controls within the project area. |
Completeness Report: |
LiDAR data is collected for the project area. Post processing of the simultaneously acquired GPS/INS is performed and applied to the laser returns to output a point cloud in the specified project coordinate system and datums. The point cloud data is then subjected to automated classification routines to assign all points in the point cloud to ground, water, overlap and unclassified point classes. Anomalous laser returns that occur infrequently are removed entirely from the data set. The ground class points are then compared to surveyed ground control to develop an accuracy measure of the laser terrain data. |
Conceptual Consistency: |
LiDAR data is collected within the project area, processed and verified against control. |
Lineage
Process Steps
Process Step 1
Description: |
Applications and Work Flow Overview: 1.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 2.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.1.35 3.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 v. 1.2) format. Software: ALS Post Processing Software v.2.7 4.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.10.009 5.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.10.006 6.Position and attitude data were imported. Resulting data were classified as ground and non-ground 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 1 -meter pixel resolution. Software: TerraScan v.10.009, ArcMap v. 9.3.1, TerraModeler v.10.004 7.Converted raw images to tif format, calibrating raw image pixels for gain and exposure settings of each image. Software: Leica Calibration Post Processing v.1.0.4 8.Calculated photo position and orientation by associating the SBET position (Step 3) to each image capture time. Software: IPASCO v.1.3 9.Orthorectified calibrated tiffs utilizing photo orientation information (Step 8) and the LiDAR-derived ground surface (Step 6). Software: Leica Photogrammetry Suite v.9.2 10.To correct light imbalances between overlapping images, radiometric global tilting adjustments were applied to the rectified images. Software: OrthoVista v.4.4. 11.The color corrected images were then mosaicked together for the survey area and subset into tiles to make the file size more manageable. Software: OrthoVista v.4.4. 12.Mosaicked tiles were inspected for misalignments introduced by automatic seam generation. Misalignments were corrected by manual adjustments to seams. Software: Adobe Photoshop 7.0, OrthoVista v.4.4. |
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Process Date/Time: | 2010-01-01 00:00:00 |
Process Step 2
Description: |
LiDAR data is processed using the GPS/INS solution. Data is classified to produce: Class 1: unclassified points Class 2: ground points Class 7: low point (noise) |
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Process Date/Time: | 2012-08-13 00:00:00 |
Process Step 3
Description: |
The NOAA Office for Coastal Management (OCM) received the files in las format. The files contained lidar elevation and intensity measurements. The data were in GA State Plane coordinates and NAVD88 (orthometric) heights in feet. OCM performed the following processing for data storage and Digital Coast provisioning purposes: 1. The data were converted from WA State Plane North coordinates to geographic coordinates. 2. The data were converted from NAVD88 (orthometric) heights in feet to GRS80 (ellipsoid) heights in meters using Geoid 03. 3. The data were filtered to remove outliers. 4. The LAS data were sorted by latitude and the headers were updated. |
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Process Date/Time: | 2013-08-12 00:00:00 |
Catalog Details
Catalog Item ID: | 50161 |
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GUID: | gov.noaa.nmfs.inport:50161 |
Metadata Record Created By: | Anne Ball |
Metadata Record Created: | 2017-11-15 15:24+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2022-08-09 17:11+0000 |
Metadata Record Published: | 2022-03-16 |
Owner Org: | OCMP |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2022-03-16 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2023-03-16 |