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snippet: Provide high resolution terrain elevation data from the Russian River dataset.
summary: Provide high resolution terrain elevation data from the Russian River dataset.
accessInformation: Sonoma County Water Agency
thumbnail:
maxScale: NaN
typeKeywords: ["ArcGIS Server","Data","Image Service","Service"]
description: <span style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'>The bare earth digital elevation model (DEM) represents the earth's surface with all vegetation and anthropogenic features removed. It is derived from NIR Lidar data using TIN processing of the ground point returns. Some elevation values have been interpolated across areas in the ground model where there is no elevation data (e.g. over water, under dense vegetation). The horizontal datum for this dataset is NAD83 (2011), the vertical datum is NAVD88, Geoid 18, and the data is projected in California State Plane, Zone 2. Units are in US Survey Feet. NV5 Geospatial collected the Russian River Lidar data for Sonoma County Water Agency on 01/23/2021.</span>
licenseInfo: <p style='margin-top:0px; margin-bottom:6px; padding-bottom:1em; font-family:&quot;Segoe UI&quot;, Arial, sans-serif; font-size:13.3333px;'>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. Elevation values for open water surfaces should be considered approximate due to the increase of laser noise seen over water, frequent lack of returns, and the overall dynamic nature of water.</p><p style='margin-top:8px; margin-bottom:8px; padding-bottom:1em; font-family:&quot;Segoe UI&quot;, Arial, sans-serif; font-size:13.3333px; text-align:justify; font-weight:bold;'>SUBJECT: PUBLIC INFORMATION REQUEST –LiDAR Data</p><p style='margin-top:8px; margin-bottom:8px; padding-bottom:1em; font-family:&quot;Segoe UI&quot;, Arial, sans-serif; font-size:13.3333px; text-align:justify;'>The attached information was retrieved from Sonoma County Water Agency CAD-Drafting/GIS Records in connection with a Request for Public Information. These records and the drawings upon which they are based, were produced or conducted solely for the technical and/or functional needs and purposes of the Sonoma County Water Agency and/or other entities which it now acts, or may have acted on behalf of in the past.</p><p style='margin-top:8px; margin-bottom:8px; padding-bottom:1em; font-family:&quot;Segoe UI&quot;, Arial, sans-serif; font-size:13.3333px; text-align:justify;'>The Sonoma County Water Agency makes no assertions or representations regarding the sufficiency, accuracy or applicability of the information and/or records provided for any purpose beyond that for which they were originally produced.</p><p style='margin-top:8px; margin-bottom:8px; padding-bottom:1em; font-family:&quot;Segoe UI&quot;, Arial, sans-serif; font-size:13.3333px; text-align:justify;'>The information contained herein is for the use and information of the party to whom it was directly sent. The redistribution or “sharing”of this information is strictly prohibited.</p>
catalogPath:
title: SCWA_RussianRiver_Lidar_BareEarth_DEM_2021
type: Image Service
url: https://s-wgispubimg1.win.root.sonoma.gov:6443/arcgis/admin
tags: ["Light Detection and Ranging","elevation data","topography","bare earth","DEM","digital elevation model","Sonoma County","California","Healdsburg","Geyserville","Cloverdale","lidar"]
culture: en-US
portalUrl:
name: SCWA_RussianRiver_Lidar_BareEarth_DEM_2021
guid:
minScale: NaN
spatialReference: