gov.noaa.csc.maps:2007_OR_ODF_m104 Oregon Department of Forestry (ODF) Watershed Sciences, Inc. 2007 Charleston, SC NOAA's Ocean Service, Coastal Services Center (CSC) http://www.csc.noaa.gov/lidar This lidar dataset encompasses two areas in northwest Oregon. The northern area is located in Clatsop County, encompassing Clatsop State Forest ownership; the southern area is located in Tillamook, Washington and Yamhill Counties, encompassing areas of the Tillamook State Forest. The LiDAR data was collected April 25-28, May 1 and May 3-9, 2007. The lidar data are multiple return and bare earth classified. The survey used a Leica ALS50 Pase II laser system mounted in a Cessna Caravan 208. LiDAR flight lines have been examined to ensure that there was at least 50% sidelap, there are no gaps between flightlines, and overlapping flightlines have consistent elevation values. 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. Elevation values for open water surfaces are not valid elevation values because few LiDAR points are returned from water surfaces. Watershed Sciences, Inc. collected the LiDAR and created this data set for the Oregon Department of Forestry and the Puget Sound LiDAR Consortium. Provide high resolution terrain elevation and land cover elevation data. The Lidar reports for this data set may be viewed at: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/or/odf/LiDAR_Data_Report_ODF_Delivery1.pdf describes the northern area of the data set that falls in Clatsop County. LiDAR_Data_Report_DoGAMI_ODF_Deliv5.pdf and Deliv6.pdf describe the southern area of the data set that falls in Tillamook, Washington and Yamhill Counties. 20070425 20070426 20070427 20070428 20070501 20070503 20070504 20070505 20070506 20070507 20070508 20070509 Ground condition Complete None planned -123.381263 -123.244023 45.877991 45.747008 ISO 19115 Topic Category Elevation None Topography/Bathymetry LiDAR Light Detection and Ranging DEM Digital Terrain Model Elevation Topography High-resolution Bare earth Bare ground DTM Vegetation Land cover Oregon Department of Forestry Watershed Sciences Puget Sound LiDAR Consortium None United States Oregon Pacific Northwest Yamhill County Washington County Tillamook County Clatsop County Coast Range Tillamook State Forest Clatsop State Forest 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. Oregon Department of Geology and Mineral Industries (DOGAMI) Ian Madin Mailing and physical address

800 NE Oregon St. #28, Ste.965

Portland OR 97232 USA 971-673-1542 ian.madin@dogami.state.or.us Oregon Department of Forestry (ODF) Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722 LiDAR flight lines have been examined to ensure that there was at least 50% 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 1:3500 scale. LiDAR data has been collected and processed for all areas within the project study area. 1/3000th AGL For the northern area of the data set that falls in Clatsop County the Root Mean Square Error (RMSE) of the data set is 4.54 cm (0.149 feet). Accuracy was assessed using 580 ground survey (real time kinematic) points. For the southern area of the data set that falls in Tillamook, Washington and Yamhill Counties, the Root Mean Square Error (RMSE) of the data set is 3.04 cm (0.10 feet). Accuracy was assessed using 5,965 ground survey (real time kinematic) points. Acquisition. The LiDAR data was collected April 25-28, May 1, and May 3-9, 2007. This was a leaf-off condition. A Leica ALS50 LiDAR system was mounted in a fixed-wing aircraft and flown 900 meters above ground level (AGL). A pulse rate (PR) of 105 kHz with at least 100% overlap (minimum 50% side-lap) was used. Greater than 8 points per square meter and 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. 2007 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 Processing software and IPAS 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 broken into 7.5 minute quads and output as laser points, TINed and GRIDed surfaces. 10. The highest hit method was used to create a vegetation DEM. 2007 The NOAA Coastal Services Center (CSC) received the files in las format. The files contained Lidar elevation and intensity measurements. The data was in Lambert Conformal Conic and Oregon Lambert projections and NAVD88 Geoid 03 vertical datum. CSC performed the following processing to the data to make it available within Digital Coast: 1. The data were converted from Lambert Conformal Conic/Oregon Lambert coordinates to geographic coordinates. 2. The data were converted from NAVD88 (orthometric) heights to GRS80 (ellipsoid) heights using Geoid 03. 3. The LAS data were sorted by latitude and the headers were updated. 20081115 Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) Coastal Elevation Mapping (CEM) Project Scientist Mailing and physical address

2234 South Hobson Ave.

Charleston SC 29405-2413 843-740-1200 tcm@csc.noaa.gov The NOAA National Geophysical Data Center (NGDC) received Lidar data files on external harddrive. The disk contains LiDAR data from the NOAA Coastal Services Center. The data are currently being served via Digital Coastl at http://www.csc.noaa.gov/digitalcoast/. The data can be used to re-populate the system. The data are provided on this disk in LAS format. LAS format is an industry standard for serving LiDAR data. The data are exclusively in geographic coordinates, however, the datums used vary. Most are NAD 83, however some are in ITRF. Vertical systems include both ellipsoid (ITRF and NAD 83) and NAVD 88. For NAVD 88 values, Geiod 03 is primarily used; however, data received in NAVD 88 prior to 2003 was processed using Geoid 99. 20090821 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Pamela Grothe Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-6120 (303) 497-6958 (303) 497-6513 pamela.grothe@noaa.gov 7:30-5:00 Mountain Contact Data Center Point 0.0000001 0.0000001 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 Ellipsoid 0.001 Meters Explicit elevation coordinate included with horizontal coordinates Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) Coastal Elevation Mapping (CEM) Project Scientist Mailing and physical address

2234 South Hobson Ave.

Charleston SC 29405-2413 843-740-1200 tcm@csc.noaa.gov Downloadable Data Any conclusions drawn from the analysis of this information are not the responsibility of the Oregon Department of Forestry (ODF), the Oregon Department of Geology and Mineral Industries, the Coastal Services Center or its partners. This data can be obtained on-line at the following URL: http://www.csc.noaa.gov/lidar DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Pamela Grothe Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-6120 (303) 497-6958 (303) 497-6513 pamela.grothe@noaa.gov 7:30-5:00 Mountain Contact Data Center Disclaimer While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. The National Geophysical Data Center serves as the archive for this LIDAR data. NGDC should only be contacted for this data if it cannot be obtained from NOAA Coastal Services Center. 20111119 20111119 20121119 Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) Coastal Elevation Mapping (CEM) Project Scientist Mailing and physical address

2234 South Hobson Ave.

Charleston SC 29405-2413 843-740-1200 tcm@csc.noaa.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998