Watershed Sciences 2007 remote-sensing image \\WINXP\D$\PDX_DELIVERY_9\RASTERS\INTENSITIES\45121c5101.tif 45121c6101.tif45121c6101.tif The dataset encompasses portions of the following counties in northwest Oregon: Tillamook, Columbia, Multnomah, Washington, Marion, Yamhill, Hood River, and Clackamas. Each intensity image depicts, at a 1.5-foot resolution, intensity values of the LiDAR laser returns. Watershed Sciences, Inc. collected the LiDAR and created this data set for the Oregon Department of Geology and Mineral Industries (DoGAMI). Provide intensity images. This data is assembled by .75 minute quadrangles (1/100 of a 7.5 minute quad) and delivered in the Oregon State Plane North, FIPS 3601 projection. en 03/15/07 10/23/07 REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground. ground condition Complete None planned 7880835.0000007884120.000000620689.500000625299.000000 REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords. LiDAR Light Detection and Ranging Intensity topography high-resolution intensity image intensity Oregon Marion County Pacific Northwest Washington County Clackamas County Yamhill County Portland Metro Area Tillamook County Columbia County Multnomah County Hood River County None. REQUIRED: Restrictions and legal prerequisites for using the data set after access is granted. Ian Madin DoGAMI mailing and physical address
800 NE Oregon St. #28, Ste. 965
Portland OR 97232 971-673-1542 ian.madin@dogami.state.or.us Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.0.1324 Raster Dataset 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 selected 7.5-minute quadrangles included in this delivery cycle. 1/3000th AGL See LiDAR data report. Acquisition. The LiDAR data was collected between March 15 amd October 23, 2007. The survey utilized a Leica ALS50 Phase II mounted in a Cessna Caravan 208, and an Optech 3100 laser system mounted in a Cessna Caravan 208B. 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. LiDAR Data 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, REALM survey suite, IPAS, and PosPac 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 and REALM software tools, 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 RTK ground survey points collected to verify the vertical accuracies. 9. Points were broken into .75 minute quads and output as GeoTiffs, colored (0-255) by intensity values. Metadata imported. C:\crap\PDX\metadata\int_metadata.xml Metadata imported. C:\crp\PDX\metadata\int_metadata.xml Metadata imported.C:\crp\PDX\metadata\int_metadata.xml20080302 G-polygon 2 RasterPixel307321901.5000001.50000081Upper LeftFALSENone3pixel codesFALSE row and column 1.500000 1.500000 international feet Lambert Conformal Conic44.33333346.000000-120.50000043.6666678202099.7375330.000000 D_North_American_1983_HARN Geodetic Reference System 80 6378137.000000 298.257222 GCS_North_American_1983_HARNNAD_1983_HARN_StatePlane_Oregon_North_FIPS_3601 FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. FID_vector Id ET_ID ET_Index FID_sister Id_1 Band_2 ObjectID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Value Count Band_3 ObjectID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Value Count DoGAMI mailing and physical address
800 NE Oregon St. #28, Ste. 965
Portland OR 97232 USA 971-673-1542 Downloadable Data 0.000 0.000 20080302 Watershed Sciences, Inc. REQUIRED: The person responsible for the metadata information. mailing and physical address
215 SE 9th Ave. Suite 106
Portland OR 97214 USA REQUIRED: The telephone number by which individuals can speak to the organization or individual. watershedsciences.com FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile enhttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile {6ED77BB0-6FDA-4D1D-8955-449E2ED3DA70}2008030220055600FALSE20080302200651002008030220065100Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.0.132445121c6101.tif78808357884120625299620689.51-121.750275-121.73721845.37514245.3623621ISO 19115 Geographic Information - MetadataDIS_ESRI1.0datasetfile://\\WINXP\D$\PDX_DELIVERY_9\RASTERS\INTENSITIES\45121c6101.tifLocal Area Network0020.000Raster DatasetNAD_1983_HARN_StatePlane_Oregon_North_FIPS_3601221901.5Foot1 Foot = 0.3048 Meter(s)30731.5Foot1 Foot = 0.3048 Meter(s)120080302