{
 "culture": "en-US",
 "name": "Hillshade_2021_NAD83",
 "guid": "20F273B2-97FC-416C-B95E-2BA8AFEA6D98",
 "catalogPath": "",
 "snippet": "The hillshade model shows how the ground surface would be lit up by a light source if there were no obstructions (buildings, trees, etc.) across the City of Bothell, WA and surrounding area. This model highlights topographic relief (hillslopes) and is typically used for cartographic purposes as a basemap. This hillshade model was developed from bare earth (ground) elevation points in lidar data collected between April 1 and April 15, 2021.City of Bothell staff developed the hillshade model by first creating a 1-foot resolution bare earth elevation raster (also known as a Digital Elevation Model, or DEM) from the lidar LAS data (point cloud) provided by the contractor. The digital elevation model attempts to show the ground elevations without any surface features such as buildings or trees. Where surface features obstruct lidar pulses from reaching the ground (e.g. under a building), the DEM approximates the ground elevation from the surrounding area. Hydroflattening on large bodies of water (e.g. the Sammamish River) was also applied using breaklines provided by the contractor, supplemented by large water bodies (classified as \"Lakes\") in Bothell's own Water Bodies polygon dataset. A hillshade raster was then created from this DEM raster with a Z factor (vertical exaggeration) of 3 to accentuate hillslopes and topographic relief. ArcGIS Desktop 10.8.1 (ArcMap) was used for all steps by City of Bothell staff.Metadata from NV5 Geospatial (contractor):The purpose of the lidar data was to produce a high accuracy 3D dataset that meets all necessary standards laid out by the 3D Elevation Program and the WA King County contract. The lidar point cloud data were used to create classified lidar LAS files, intensity images, hydro-flattened DEMs, highest hit DSMs, and 3D breaklines of rivers and lakes within the study area.Product: Classified LAS 1.4 files, formatted to 1294 individual 4500usft x 4500usft tiles covering the WA King County project area.Geographic Extent: This dataset and derived products encompass an area cov",
 "description": "Hillshade from 2016 LIDAR data",
 "summary": "The hillshade model shows how the ground surface would be lit up by a light source if there were no obstructions (buildings, trees, etc.) across the City of Bothell, WA and surrounding area. This model highlights topographic relief (hillslopes) and is typically used for cartographic purposes as a basemap. This hillshade model was developed from bare earth (ground) elevation points in lidar data collected between April 1 and April 15, 2021.City of Bothell staff developed the hillshade model by first creating a 1-foot resolution bare earth elevation raster (also known as a Digital Elevation Model, or DEM) from the lidar LAS data (point cloud) provided by the contractor. The digital elevation model attempts to show the ground elevations without any surface features such as buildings or trees. Where surface features obstruct lidar pulses from reaching the ground (e.g. under a building), the DEM approximates the ground elevation from the surrounding area. Hydroflattening on large bodies of water (e.g. the Sammamish River) was also applied using breaklines provided by the contractor, supplemented by large water bodies (classified as \"Lakes\") in Bothell's own Water Bodies polygon dataset. A hillshade raster was then created from this DEM raster with a Z factor (vertical exaggeration) of 3 to accentuate hillslopes and topographic relief. ArcGIS Desktop 10.8.1 (ArcMap) was used for all steps by City of Bothell staff.Metadata from NV5 Geospatial (contractor):The purpose of the lidar data was to produce a high accuracy 3D dataset that meets all necessary standards laid out by the 3D Elevation Program and the WA King County contract. The lidar point cloud data were used to create classified lidar LAS files, intensity images, hydro-flattened DEMs, highest hit DSMs, and 3D breaklines of rivers and lakes within the study area.Product: Classified LAS 1.4 files, formatted to 1294 individual 4500usft x 4500usft tiles covering the WA King County project area.Geographic Extent: This dataset and derived products encompass an area cov",
 "title": "Hillshade_2021_NAD83",
 "tags": [
  "bothell",
  "wa",
  "washington",
  "lidar",
  "elevations",
  "elevation",
  "digital elevation model",
  "dem",
  "bare earth",
  "ground",
  "remote sensing",
  "topography",
  "topographic",
  "topo",
  "relief",
  "hillshade"
 ],
 "type": "Map Service",
 "typeKeywords": [
  "Data",
  "Service",
  "Map Service",
  "ArcGIS Server"
 ],
 "thumbnail": "thumbnail/thumbnail.png",
 "url": "",
 "extent": [
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  ],
  [
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  ]
 ],
 "minScale": 0,
 "maxScale": 1.7976931348623157E308,
 "spatialReference": "NAD_1983_StatePlane_Washington_North_FIPS_4601_Feet",
 "accessInformation": "U.S. Geological Survey, Quantum Spatial, Inc., NV5 Geospatial",
 "licenseInfo": ""
}