State of Oregon seal State of Oregon Department of Geology and Mineral Industries
 
 
 
 

Collecting Lidar

 

DOGAMI leads the Oregon Lidar Consortium, which was created in 2007 with the goal of providing high-quality lidar data coverage for the entire state. An initial $2 million seed capital investment by the Oregon Legislature has since been leveraged into more than $19 million of lidar acquisition.

Lidar Projects

Since 2008, DOGAMI has ordered 72 lidar flights, supported by funding from more than 80 partners. High-resolution lidar data has been acquired for almost 46,886 square miles in Oregon—approximately 48 percent of the state and about 98 percent of Oregon’s populated areas.

Projects start with a partner interested in funding a specific area, and DOGAMI then works to enlarge that area by finding additional partners and adding consortium funds to create contiguous blocks of lidar collection.

Interested in partnering with the OLC to collect lidar? Contact us.

landslide revealed by lidarLidar in Action: Portland Metro Area Project. A 2014 $951,000 project collected 976 square miles of lidar data and orthophotos in the Portland area. Ordering individual flights would have cost nearly $6 million, according to calculations by project partner Metro. The more than 30 partners – including cities, counties, transportation agencies and the U.S. Geological Survey – have access to all the data. Partners are putting the lidar to many uses, from helping 9-1-1 dispatchers have up-to-date information for first responders to inventorying buildings to surveying urban tree canopy.

How Lidar is Collected

landslide revealed by lidarAirborne lidar uses a laser range finder mounted in a precisely navigated aircraft to scan the earth's surface at very high rates and collect very dense clouds of X-Y-Z coordinates. OLC projects are collected by Quantum Spatial, Inc. of Corvallis, Ore.

Amendment 8 to Agency-Specific Price Agreement 7525 provides detailed technical specifications and information on optional lidar services. Lidar Pricing (PDF).

Technical Specifications

DOGAMI requires aggregate design multi-swath density of at least 8 pulses per square meter. The higher-than-typical density is absolutely necessary to get accurate bare earth coverage in a state that’s as forested as Oregon. The Agency also has a four-point quality control program in place that stringently reviews specifications for data completeness, swath to swath data consistency, digital elevation model requirements, and absolute accuracy of bare earth DEMs. Current technical specifications include:

Acquisition Value
On-ground Spot Diameter 15 cm - 40 cm measured at 1/e. (note 1)
Number of Returns per Laser Puls e ≥ 4
Intensity Record Range 16 Bits
Laser Scan Angle ≤ +/- 15 degrees (note 2)
Planned Survey Sidelap ≥ 50% Sidelap of adjacent swath (note 3)
Aggregate Pulse Density ≥ 8 (note 4)
Point Dilution of Precision (PDOP) ≤ 3.0
Satellites in View ≥ 6
GPS Stationary Reference Receiver ≥ 2 receivers, each at least 2 hours long
GPS Stationary Reference Receiver Sample Rate ≥ 1 hertz (Hz)
Aircraft GPS Sample Rate ≥ 2 hertz (Hz)
Differential GPS baseline distance ≤ 30 km
Ground Control Point (GCP)⁵ [note 5] Accuracy ≤ 1.5 cm RMSE (note 6)
Data Quality Value Value
Single Swath Vertical Departure from Planarity ≤ 5 cm RMSE per 100 m²
Swath to Swath Reproducibility ≤ 10 cm RMSE
Fundamental Vertical Accuracy of Lidar Ground Points ≤ 9.25 cm RMSE
Absolute Accuracy of Digital Elevation Models ≤ 9.25 cm RMSE
Data Coverage No voids
Swath Overlap ≤ 10% no-overlap area per project area
DEM and DSM Surface Raster no voids or artifacts (note 7)
Aggregate First Return Point Density ≥ 8 pulse per square meter
Notes:

1 – 1/e is defined as the diameter at which the beam irradiance (intensity) has fallen to 36.5 percent of its peak value
2 – Laser scan angle cannot exceed 30 degrees overall
3 – Survey must be designed for 100% double coverage
4 – pertains to the area of each swath with a scan angle between 2 and 12 degrees left and right from nadir
5 – GCPs will be sued for survey calibration and assessment of absolute vertical accuracy
6 – Root Mean Square Error
7 – Determined by DOGAMI and lidar vendor

Project Reports

  • Data survey reports are provided by the vendor and generally contain a project overview as well as aerial acquisition, ground survey, accuracy, and density information.
  • Data acceptance reports contain a description of the project area, data completeness and control checks, quality consistency results, and absolute accuracy analysis.

These reports are also linked from project area layer popups in the data viewer.

Notes: Some report PDF file sizes are very large.

 
Program Project Year Survey Report Accept. Report Dates Flown
OLC Morrow County 3DEP 2018 Survey -- Oct 3 - Nov 15 2018
OLC Santiam 2018 Survey -- Aug 3 2018
OLC Harney 3DEP 2018 Survey -- Aug 3 2018
University of Oregon Eagle Creek Fire Area 2018 Survey -- May 3-6, 2018
OLC Baker County 2018 Survey -- Sep 26-30 2017
OLC Silver Creek 2017 Survey -- Aug 27 - Sep 11 2017
USDA Forest Service DESPCF, MALCRW, UMPTLR, WILWIL 2017 -- -- July 11-20 2017
OLC Big Windy 2017 Survey -- Jun 22-26 2017
OLC Siskiyou 2017 Survey -- Jun 18-21 2017
OLC John Day 2017 Survey -- Jun 14 - Jul 9 2017
OLC Grass Valley 2017 Survey -- Apr 22 - May 4 2017
OLC New River, Topobathymetric 2017 Survey -- Apr 4, 2017
Puget Sound Regional Council Walla Walla, WA 2017 Survey -- Nov 29, 2016, Dec 2, 2016, Mar 19, 2017, Mar 21, 2017, Mar 23, 2017
USDA Forest Service Fremont-Winema, Willamette,
Deschutes, and Umpqua National Forests
2016 Survey -- July 21 - Oct 9 2016
OLC McKenzie River 20162016SurveyAccept.May 28 - June 21 2016
OLC Canyon Creek2016SurveyAccept.June 7 - June 20 2016
OLC Milton-Freewater2016SurveyAccept.May 28 - June 5 2016
Oregon Dept. of Forestry NW Oregon - Abiqua2016Survey--Mar 30 2016
Oregon Dept. of Forestry NW Oregon - Clatsop2016Survey--Dec 31 2015 - Feb 9 2016
Federal Emergency Management Association  Malheur FEMA 3DEP2016Survey--2016
OLC Panther Creek 2015 2015 Survey Accept. June 18 2015
Oregon Dept. of Forestry NW Oregon - Columbia2016Survey--June 8-9 2015
Oregon Dept. of Forestry NW Oregon - McGregor2016Survey--June 6 and 8 2015
Oregon Dept. of Forestry NW Oregon - Wilkerson2016Survey--May 30, June 5-6 2015
Oregon Dept. of Forestry NW Oregon - Salmonberry2016Survey--Apr 19-20 2015
OLC Upper Umpqua 3DEP2015SurveyAccept.Feb 4 - Nov 12 2015
OLC Upper Rogue 3DEP2015Survey Accept.Mar 12 - Oct 12 2015
OLC Middle Fork Willamette Bathymetric Survey2015Survey Accept.Sep 14-15 2015
OLC Wasco2015SurveyAccept.July 15 2014 - Aug 5 2015
OLC Wallowa 3DEP2015SurveyAccept.July 4-15 2015
OLC Big Windy 20152015Survey Accept.June 6 - July 3 2015
OLC Four Rivers2015SurveyAccept.Oct 10 2014 - June 16 2015
OLC Lane County2015SurveyAccept.Sep 5 2013 - June 8 2015
OLC South Fork Crooked River Bathymetric Survey2015SurveyAccept.Apr 16- 17 2015
OLC Lower Malheur2015SurveyAccept.Mar 21 - Apr 9 2015
OLC Harney Basin2015SurveyAccept.Oct 15 2014 - Mar 1 2015
OLC Metro2014SurveyAccept.July 9 - Sep 7 2014
OLC South Warner2014Survey--Aug 7-16 2014
OLC Crooked Ochoco2014SurveyAccept.Sep 27 2013 - June 19 2014
OLC Umatilla_YST2013SurveyAccept.Oct 1-8 2014
OLC Big Windy 20132013SurveyAccept.Sep 26 and Oct 23 2013
OLC Clackamol2013SurveyAccept.May 7 - July 20 2013
OLC Scappoose2013SurveyAccept.July 1 - July 2 2013
OLC Ochoco West2013SurveyAccept.May 20 - June 16 2013
OLC West Metro2013SurveyAccept.Dec 29 2012 - Jan 2 2013
OLC Green Peter2012SurveyAccept.Sep 21 - Nov 27 2012
OLC Tillamook-Yamhill2012SurveyAccept.Sep 23 - Oct 5 2012
OLC Sandy River Bathymetric Survey2012SurveyAccept.Sep 22 2012
OLC Rogue River2012SurveyAccept.Mar 8 - Aug 19 2012
OLC Union Baker2012SurveyAccept.Dec 8 2011 - July 2 2012
OLC Keno2012SurveyAccept.May 19 - June 2 2012
Tualatin NWR Wapato Oregon2012----May 15 2012
OLC Central Coast2012SurveyAccept.Sep 2 2011 - May 11 2012
OLC Eastern Oregon Thermal Infrared Study Area2012Survey--Mar 3 - Apr 8 2012
Bureau of Land Management Panther Creek2012 Survey--Apr 7 2012
David C. Smith & US Army Corp Engineers Fall Creek2012Survey--Jan 13 - Feb 23 2012
USDA Forest Service Blue River2011Survey--Oct 27, 28 and Nov 1 2011
OLC Upper Sandy River2011SurveyAccept.Aug 30 - Sep 3 2011
OLC Ochoco2011SurveyAccept.July 8-16 2011
OLC Burns2011SurveyAccept.June 19-21 2011
US Bureau of Reclamation Klamath BOR2011Survey--Nov 20 2010 - May 30 2011
OLC Pine Creek2011SurveyAccept.May 19-20 2011
OLC Umatilla2011SurveyAccept.Mar 12 - May 13 2011
OLC Deschutes2011SurveyAccept.Oct 2 2009 - May 5 2011
OLC Panther Creek 20112011SurveyAccept.Apr 17 2011
OLC Eagle Point2011SurveyAccept.Oct 29 - Nov 4 2010
OLC CVO Newberry Study Area2011SurveyAccept.July 31 - Aug 10 2010
David C Smith and Associates Lake Billy Chinook2011Survey--Aug 14-15 2008
OLC Klamath2010SurveyAccept.Sep 14 - Oct 27 2010
US Army Corp Engineers Columbia River USACE2010Survey--Nov 17 2009 - Sep 22 2010
OLC Crater Lake2010SurveyAccept.Aug 23 - Sep 5 2010
USDA Forest Service LC West Malheur National Forest2010Survey--July 27 - Aug 19 2010
OLC Newberry2010SurveyAccept.May 28 - July 27 2010
OLC Yambo2010SurveyAccept.Apr 14 - July 14 2010
Oregon Dept. Parks and Recreation Cottonwood Canyon2010Survey--May 13-15 2010
ORMAT Glass_Buttes2010Survey--May 8-14 2010
US Bureau of Reclamation Klamath River (Link River Dam, OR to the confluence with Elk Creek south of Happy Camp, CA)2010Survey--Feb 27 - Mar 15 2010
OLC Malheur River2009SurveyAccept.Nov 19 2008 - July 5 2009
OLC South West Washington Coast 2009 Survey Accept. July 26 2009 - Oct 10 2009
BLM Panther Creek 2009 -- -- Aug 17, 2009
Walla Walla Basin Watershed Council Walla Walla2009Survey--Aug 17 2009
US Bureau of Reclamation Grande Ronde Basin2009Survey--Aug 12-16 2009
OLC North Coast2009SurveyAccept.Apr 5 - Aug 9 2009
National Center for Airborne Lidar Mapping Owhyee2009----June 26 2009
Washington Dept. of Natural Resources Yacolt Burn2009----June 9 2009
OLC Willamette Valley2009SurveyAccept.Oct 22 2008 - June 9 2009
OLC Medford - Rogue Valley2009SurveyAccept.Apr 29 - May 12 2009
OLC South Coast2009SurveyAccept.May 3 2008 - Apr 5 2009
OLC and Puget Sound Lidar Consortium Portland - Mt. Hood Study Area2009Survey--Mar 16 2007 - Apr 11 2009
US Geologic Survey Umpqua River2008Survey--Apr 21 - July 13 2009
OLC Ontario2008SurveyAccept.Dec 3-10 2008
USDA Forest Service Sandy River2008Survey--Sep 29 2008 - Oct 1 2008
US Bureau of Reclamation Grande Ronde and Lemhi River Basins2008Survey--Oct 19 2007 - Sep 5 2008
OLC Willamette Mission and Bowers Rock State Park 2008 Survey -- Sep 15  - Oct 9 2008
OLC Camp Creek2008SurveyAccept.Aug 19-27 2008
USDA Forest Service HJ Andrews & Willamette National Forest2008Survey--Aug 10-11 2008
Douglas County PUD Macdonald Dunn2008----Apr 2 2008
Bureau of Land Management Yamhill County2007Survey--Sep 3 and Dec 8 2007
USDA Forest Service Biscuit Fire2007Survey--Sep 19-23 2007
Wallowa-Whitman National Forest Sumpter2007Survey--Sep 17 2007
USDA Forest Service Damon Malheur2007Survey--Sep 15-16 2007
USDA Forest Service Salmon River2007Survey--Aug 25 2007
Rogue Valley Council of Governments Rogue Valley2007Survey--May 30-31 2007
Oregon Trout Lower Salmon River2007Survey--May 18-19 2007
Oregon Trout Still Creek2007Survey--May 18 2007
Oregon Dept. Parks and Recreation Honeyman Dunes2007Survey--Mar 13 2007
Oregon Dept. Parks and Recreation Silver Falls2007Survey--Mar 14 2007
Portland General Electric Sand River 20062006Survey--Oct 22 2006
USDA Forest Service Rogue River - Siskiyou National Forest2006Survey--July 1- 4 2006
Oregon Dept. of Environmental Quality Yamhill River2005Survey--Oct 12 2005
Wetland & Watershed Assessment Group South Slough Esturary Reserve 20052005Survey--Sep 6 2005
USDA Forest Service Yaquina and Elk Creek Watershed2005Survey--July 13-15 2005
U.S. Fish and Wildlife SF John Day River2005Survey--Mar 11 2005
Puget Sound Lidar Consortium Lower Columbia 20052005Survey--Jan 10 - Feb 20 2005
Klamath Tribes Sprague River2004Survey--Nov 2004
Klamath Tribes Wood River2004Survey--Sep 26-27 2004
Puget Sound Lidar Consortium Portland Hills 2004 -- -- July 2 2004
JALBTCX (Joint Airborne Lidar Bathymetry Technical Center of eXpertise) Coastal Bathymetry 2010-2011 Survey (metadata) -- June 18 2010 - June 08 2011
Puget Sound Lidar Consortium Portland Pilot2004----Mar 7 2004
Oregon City Oregon City2004Survey-- report dated Feb 16, 2006
US Geologic Survey Deschutes River2002----May 25 2006
Bureau of Land Management Cascade Siskiyou National Monument2002Survey--June 27-29 2002
US Bureau of Reclamation Umatilla River2000Survey--Oct 8 - Nov 1 2000

(last updated 04/29/2021)

 

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