2009 - 2011 OLC Lidar DEM: Deschutes (OR)

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: DOGAMI
Originator: Watershed Sciences, Inc.
Originator:
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
Publication_Date: 201710
Title: 2009 - 2011 OLC Lidar DEM: Deschutes (OR)
Publication_Information:
Publication_Place: Charleston, SC
Publisher: NOAA's Ocean Service, Office for Coastal Management (OCM)
Online_Linkage:
https://coast.noaa.gov/htdata/raster2/elevation/OLC_Deschutes_DEM_2009-2011_7382
Online_Linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=7382
Online_Linkage: https://coast.noaa.gov/dataviewer
Online_Linkage: https://coast.noaa.gov/dataregistry
Online_Linkage: https://coast.noaa.gov
Description:
Abstract:
Watershed Sciences, Inc. collected Light Detection and Ranging (LiDAR) data of the Deschutes Study Area for the Oregon Department of Geology and Mineral Industries (DOGAMI).The dataset covers portions of Deschutes, Crook, Jefferson, Klamath, Lake, and Lane counties in Oregon. The study area totals 2899 square miles (1,855,159 acres). The data were collected in 17 deliveries, from 2009 through 2011. The bare earth digital elevation model (DEM) represents the earth's surface with all vegetation and human-made structures removed. The bare earth DEMs were derived from lidar data using TIN processing of the ground point returns. The DEM grid cell size is 3 feet. Some elevation values have been interpolated across areas in the models where there is no elevation data (e.g. over water, over dense vegetation). In addition to the bare earth DEMs, the topobathy lidar point data are also available. These data are available for custom download here: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8397
Purpose:
Provide high resolution terrain elevation and land cover elevation data.
Supplemental_Information:
The lidar report may be accessed here: https://coast.noaa.gov/htdata/lidar2_z/geoid12b/data/8397/supplemental/or2009_olc_deschutes_m8397_lidar_report.pdf The acceptance report may be accessed here: https://coast.noaa.gov/htdata/lidar2_z/geoid12b/data/8397/supplemental/or2009_olc_deschutes_m8397_acceptance_report.pdf
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20091002
Ending_Date: 20110505
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.06614
East_Bounding_Coordinate: -120.599682
North_Bounding_Coordinate: 44.804781
South_Bounding_Coordinate: 42.991949
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: elevation
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Bathymetry/Topography
Theme_Keyword: LiDAR
Theme_Keyword: Light Detection and Ranging
Theme_Keyword: DEM
Theme_Keyword: digital terrain model
Theme_Keyword: digital elevation model
Theme_Keyword: DoGAMI
Theme_Keyword: elevation data
Theme_Keyword: topography
Theme_Keyword: bare earth
Theme_Keyword: high-resolution
Theme_Keyword: bare ground
Theme_Keyword: DTM
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: Oregon
Place_Keyword: Pacific Northwest
Place_Keyword: Jefferson County
Place_Keyword: Crook County
Place_Keyword: Deschutes County
Place_Keyword: Klamath County
Place_Keyword: Lake County
Place_Keyword: Lane County
Access_Constraints: None
Use_Constraints:
In some areas of heavy vegetation or forest cover, there may be relatively few ground points in the LiDAR data. TINing the points produces large triangles and hence the elevations may be less accurate within such areas.
In some areas with large bodies of water, competing water surface levels may be visible. This is due to seasonal water level fluctuation and intervals of time between acquisition of an area. Users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Nature of the Northwest
Contact_Person: Don Haines
Contact_Position: Manager
Contact_Address:
Address_Type: mailing and physical
Address: 800 NE Oregon St., Ste. 965
City: Portland
State_or_Province: OR
Postal_Code: 97232
Country: USA
Contact_Voice_Telephone: 971-673-2331
Contact_Electronic_Mail_Address: orders@naturenw.org
Hours_of_Service: Mon-Fri 9:00 AM to 5:00 PM
Contact_Instructions: http://www.naturenw.org/contact.htm
Browse_Graphic:
Browse_Graphic_File_Name:
https://coast.noaa.gov/htdata/lidar2_z/geoid12b/data/8397/supplemental/or2009_olc_deschutes_m8397.kmz
Browse_Graphic_File_Description:
This graphic shows the lidar coverage for the 2009 - 2011 topographic lidar acquisition in the Deschutes study area.
Browse_Graphic_File_Type: kmz
Data_Set_Credit: DOGAMI, Watershed Sciences Inc.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850
Cross_Reference:
Citation_Information:
Originator: DOGAMI
Publication_Date: 2011
Title: DOGAMI Lidar Data Quadrangle Series - Klamath
Series_Information:
Series_Name: Lidar Data Quadrangle Series
Issue_Identification: Klamath
Publication_Information:
Publication_Place: Portland, OR
Publisher: DOGAMI
Data_Quality_Information:
Logical_Consistency_Report:
LiDAR flight lines have been examined to ensure that there was at least 75% sidelap, there are no gaps between flightlines, and overlapping flightlines have consistent elevation values.
Shaded relief images have been visually inspected for data errors such as pits, border artifacts, gaps, and shifting. The data was examined at a 1:3000 scale.
Completeness_Report:
LiDAR data has been collected and processed for all areas within the project study area.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Within 30 cm based on sensor specifications.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The Root Mean Square Error (RMSE) of the data set is 0.04 meters. Accuracy was assessed using 31,073 ground survey (real time kinematic) points. These ground survey points are distributed through out the study area.
Lineage:
Process_Step:
Process_Description:
Watershed Sciences, Inc. has collected Light Detection and Ranging (LiDAR) data of the Deschutes Study Area for the Oregon Department of Geology and Mineral Industries (DOGAMI). The area of interest (AOI) totals 3,001 square miles (1,920,429 acres) and the total area flown (TAF) covers 3,053 square miles (1,953,949 acres). The TAF acreage is greater than the original AOI acreage due to buffering and flight planning optimization (Figure 1.1 below). DOGAMI data are delivered in OGIC (HARN): Projection: Oregon Statewide Lambert Conformal Conic; horizontal and vertical datum: NAD83 (HARN)/NAVD88 (Geoid03); units: International Feet.
The LiDAR survey utilized Leica ALS50 Phase II and ALS60 sensors mounted in multiple Cessna Caravan 208Bs. The Leica systems were set to acquire greater than or equal to 105,000 laser pulses per second (i.e. 105 kHz pulse rate) and flown at 900 and 1300 meters above ground level (AGL), capturing a scan angle of plus or minus 14 degrees from nadir. These settings are developed to yield points with an average native density of 8 points per square meter over terrestrial surfaces. The native pulse density is the number of pulses emitted by the LiDAR system. Some types of surfaces (i.e. dense vegetation or water) may return fewer pulses than the laser originally emitted. Therefore, the delivered density can be less than the native density and vary according to distributions of terrain, land cover and water bodies.
Process_Date: Unknown
Process_Step:
Process_Description:
Processing.
1. Flight lines and data were reviewed to ensure complete coverage of the study area and positional accuracy of the laser points. 2. Laser point return coordinates were computed using ALS Post Processor software and IPAS Pro GPS/INS software, based on independent data from the LiDAR system, IMU, and aircraft. 3. The raw LiDAR file was assembled into flight lines per return with each point having an associated x, y, and z coordinate. 4. Visual inspection of swath to swath laser point consistencies within the study area were used to perform manual refinements of system alignment. 5. Custom algorithms were designed to evaluate points between adjacent flight lines. Automated system alignment was computed based upon randomly selected swath to swath accuracy measurements that consider elevation, slope, and intensities. Specifically, refinement in the combination of system pitch, roll and yaw offset parameters optimize internal consistency. 6. Noise (e.g., pits and birds) was filtered using ALS postprocessing software, based on known elevation ranges and included the removal of any cycle slips. 7. Using TerraScan and Microstation, ground classifications utilized custom settings appropriate to the study area. 8. The corrected and filtered return points were compared to the RTK ground survey points collected to verify the vertical and horizontal accuracies. 9. Points were output as laser points, TINed and GRIDed surfaces.
Process_Date: Unknown
Process_Step:
Process_Description:
The NOAA Office for Coastal Management (OCM) received the data in the proprietary ESRI grid format from DOGAMI. The bare earth raster files were at a 3 ft grid spacing. The data were in Oregon Statewide Lambert (NAD83 HARN) International feet coordinates and NAVD88 (Geoid03) elevations in International feet. OCM did the following processing to the data for Digital Coast storage and provisioning purposes: 1. Converted the raster files from the proprietary ESRI grid format to floating point GEOTIFF format 2. Converted the raster files from elevations in international feet to meters using gdal_translate from GDAL version 2.1.1. 3. Copied the raster files to database and https
Process_Date: 20171010
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Office for Coastal Management (OCM)
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: SC
Postal_Code: 29405-2413
Country: US
Contact_Voice_Telephone: 843-740-1202
Contact_Electronic_Mail_Address: coastal.info@noaa.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Oregon Statewide Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 43
Standard_Parallel: 45.5
Longitude_of_Central_Meridian: -120.5
Latitude_of_Projection_Origin: 41.75
False_Easting: 1312335.958005249
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 3
Ordinate_Resolution: 3
Planar_Distance_Units: international feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.001
Altitude_Distance_Units: meters
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Office for Coastal Management (OCM)
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: SC
Postal_Code: 29405-2413
Contact_Voice_Telephone: 843-740-1202
Contact_Electronic_Mail_Address: coastal.info@noaa.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Any conclusions drawn from the analysis of this information are not the responsibility of Watershed Sciences,Inc., DOGAMI, OLC, the NOAA Office for Coastal Management, or its partners.
Custom_Order_Process:
This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=7382
Metadata_Reference_Information:
Metadata_Date: 20171019
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Office for Coastal Management (OCM)
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: SC
Postal_Code: 29405-2413
Contact_Voice_Telephone: 843-740-1202
Contact_Electronic_Mail_Address: coastal.info@noaa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Generated by mp version 2.9.32 on Thu Oct 19 15:15:14 2017