2012 Oregon Department of Geology and Mineral Industries (DOGAMI) Lidar DEM: Rogue River Oregon

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Oregon Department of Geology and Mineral Industries (DOGAMI)
Originator: Bureau of Land Management
Originator: Federal Emergency Management Agency
Originator:
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
Publication_Date: 2017
Title:
2012 Oregon Department of Geology and Mineral Industries (DOGAMI) Lidar DEM: Rogue River Oregon
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Charleston, SC
Publisher: NOAA's Ocean Service (NOS), Office for Coastal Management (OCM)
Online_Linkage: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6370
Online_Linkage:
https://coast.noaa.gov/htdata/raster2/elevation/OLC_rogue_river_2012_6370
Online_Linkage: https://coast.noaa.gov/dataviewer
Online_Linkage: https://coast.noaa.gov
Description:
Abstract:
The dataset encompasses portions of Coos, Curry, Douglas, Jackson, and Josephine Counties.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 international feet. The elevation units are in international feet. Some elevation units have been interpolated across areas in the ground model where there is no elevation data (e.g. over water, over dense vegetation).WSI collected the LiDAR and created this data set for the Oregon Department of Geology and Mineral Industries (DoGAMI).
Purpose:
Provide high resolution terrain elevation and land cover elevation data.
Supplemental_Information:
A final report for this project may be viewed at: https://coast.noaa.gov/htdata/lidar2_z/geoid12b/data/6369/supplemental/OLC_Rogue_Report_Final_121016.pdf
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20120308
Ending_Date: 20120816
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -123.829671
East_Bounding_Coordinate: -123.748218
North_Bounding_Coordinate: 42.627359
South_Bounding_Coordinate: 42.589610
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: elevation
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: LiDAR
Theme_Keyword: Light Detection and Ranging
Theme_Keyword: DEM
Theme_Keyword: digital terrain 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: Oregon
Place_Keyword: Pacific Northwest
Place_Keyword: Coos County
Place_Keyword: Curry County
Place_Keyword: Douglas County
Place_Keyword: Jackson County
Place_Keyword: Josephine County
Access_Constraints: None
Use_Constraints:
In some areas of heavy vegetation and 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.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: DOGAMI
Contact_Person: Jacob Edwards
Contact_Address:
Address_Type: mailing and physical
Address: 800 NE Oregon St. #28, Ste. 965
City: Portland
State_or_Province: OR
Postal_Code: 97232
Country: USA
Contact_Voice_Telephone: 971-673-1557
Contact_Electronic_Mail_Address: jacob.edwards@oregon.gov
Browse_Graphic:
Browse_Graphic_File_Name:
https://coast.noaa.gov/htdata/lidar2_z/geoid12b/data/6369/supplemental/2012_OLC_RogueRiver_area.kmz
Browse_Graphic_File_Description: A polygon footprint of this data set.
Browse_Graphic_File_Type: kmz
Data_Set_Credit: DoGAMI, WSI
Data_Quality_Information:
Logical_Consistency_Report:
LiDAR flight lines have been examined to ensure that there was at least 60% 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 30cm based on sensor specifications.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The Root Mean Square Error (RMSE) of the data set is 0.05 meters. Accuracy was assessed using 19,453 ground survey (real time kinematic) points. These ground survey points are distributed through out the OLC Rogue River study area. See LiDAR data report.
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Value: 0.05
Vertical_Positional_Accuracy_Explanation: Root mean square error in meters.
Lineage:
Process_Step:
Process_Description:
Acquisition. LiDAR data acquisition began March 8, 2012 and was completed August 16, 2012. The survey utilized Leica ALS50 Phase II and ALS60 laser systems mounted in a Cessna Caravan 208B and Partenavia P.38. Near nadir scan angles were used to increase penetration of vegetation to ground surfaces. Ground level GPS and aircraft IMU were collected during the flight.
Process_Date: 2012
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: 2012
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: WSI
Contact_Address:
Address_Type: mailing and physical
Address: 421 SW 6th Avenue, Suite 800
City: Portland
State_or_Province: OR
Postal_Code: 97204
Contact_Voice_Telephone: (503) 505-5100
Process_Step:
Process_Description:
The NOAA Office for Coastal Management (OCM) received the files in the proprietary ESRI grid format. The files were converted to floating point GeoTIFF format in vertical meters using gdal_translate from GDAL version 2.1.1.
Process_Date: 201705
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Office for Coastal Management
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
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 4304
Column_Count: 7144
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: D_North_American_1983_CORS96
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: 0.01
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
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 the Oregon Department of Geology and Mineral Industries (DOGAMI), the 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
Metadata_Reference_Information:
Metadata_Date: 20171019
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Office for Coastal Management
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 11:32:47 2017