With the exception of the 30 M DEM data, all the data on our Web site is projected using the Oregon Lambert Coordinate Reference System . For more information, get help from UO Libraries. The data described in this guide are processed from lidar (an acronym for Light Detection and Ranging) and are freely available in pre-packaged raster file formats from the Oregon Department of Geology and Mineral Industries (DOGAMI). Users of this information should review or consult the primary data and information sources to ascertain the usability of the information. Want to learn more about lidar? Lidar uses pulses of light in the form of lasers to measure distances. ​. Yes, but be sure to read our disclaimer statement prior to downloading data.

This guide describes how to access, begin using, and convert file types for elevation data covering the state of Oregon.

Oregon Elevation Data Standard 3 Version 1.1 . When lidar is combined with other data about aircraft location and movement it can be used to produce detailed topography. The, https://researchguides.uoregon.edu/oregon-lidar-elevation, LIDAR 101: Introduction to LIDAR Technology, Data and Applications. ​. 0000002777 00000 n The Accessing Oregon Lidar page of this guide provides information how to access, download, and unzip Oregon Lidar from DOGAMI, as well as the types of data contained in the downloaded files. We are not set up to make maps for the public.

DEMs are made available in: "raw" source (ascii) files. Elevation, or geometric height, is mainly used when referring to points on the Earth's surface, while altitude or geopotential height is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and depth is used for points below the surface. Links to a United States National Oceanic and Atmospheric Administration (NOAA) webpage providing a short and basic description of what Light Detection and Ranging (LIDAR) is and how and why lidar is acquired. 0000001727 00000 n Have a look at … Email us​ if you would like to list your event on our calendar. This image was generated by NOAA from digital data bases of land and sea-floor elevations on a 2-minute … In this case, raster cell values represent the elevation determined by lidar returns. In early methodologies, DEMs were developed from USGS elevation contours drawn on topographic quadrangle maps. 0000031525 00000 n 0000003058 00000 n 0000031445 00000 n Check out the links below: The Oregon lidar datasets are stored as raster files. H��W]o�J}����D����zBW������[�/�]٦�Ϭ����7B��M"�33{��d��>ݼ>�� Ϟ=�8�6�[���?�wM&��l�>�ˡ������:]����6/�}���6E�A@q�);>���`s˴���V�.��.���5R=��{ 1233 0 obj << /Linearized 1 /O 1236 /H [ 1257 470 ] /L 276204 /E 34603 /N 10 /T 251424 >> endobj xref 1233 19 0000000016 00000 n

The Converting Oregon Lidar page of this guide describes how to view DOGAMI Lidar in ESRI's ArcGIS software package, as well as how to convert lidar files to contour lines and to Computer-Aided Design file format. 0000034204 00000 n %PDF-1.3 %����

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