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LiDAR Elevation Data: Clark County, WI 2018
- Identification Information
- Spatial Reference Information
- Data Quality Information
- Distribution Information
- Spatial Representation Information
- Metadata Reference Information
Identification Information
- Citation
- Title
- LiDAR Elevation Data: Clark County, WI 2018
- Originator
- Clark County
- Publication Date
- 2020-06-22
- Edition
- 2018
- Geospatial Data Presentation Form
- mapDigital
- Abstract
- This data represents LiDAR elevation information for Clark County, Wisconsin in 2018. The following derivative products are available: bare erth points, classified LAS, 1-foot contours, 2-foot contours, hydro breaklines, a countywide hydro enforced DEM, tile hydro enforced DEMs, and tile DEMs.
- Purpose
- This layer is intended for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data. [This data, along with its derivatives, is the result of a countywide elevation mapping with cooperative partnerships from Clark County, Wisconsin DOA, and the USGS 3DEP program. This data was produced from lidar data collected in May 2018, which was processed and delivered in 2019]
- Supplemental Information
- Data is available for download from: https://web.s3.wisc.edu/wsco-wisconsinview/lidar/ Detailed, original metadata accompanying this LiDAR data is available inside the ‘Metadata’ folder from WisconsinView. Bare Earth Points: Bare earth LiDAR is digital elevation data of the terrain surface consisting of irregularly spaced points, each with x/y location coordinates and z-value. The data have been subjected to automated and manual editing to remove vegetation, buildings, and other man-made structures. Classified LAS: Point classification using semi-automated techniques on the point cloud to assign the feature type associated with each point. Lidar points can be classified into a number of categories including bare earth or ground, top of canopy, and water. The different classes are defined using numeric integer codes in the LAS files. Contours: A line through all contiguous points of equal elevation value. Contours are vector features used to represent the elevation of a landscape in a relatively familiar way. They are typically used for basemaps and general topographic representation. Derived Terrain: A vector data set composed of regularly spaced points and natural features such as ridges and breaklines. A DTM augments a DEM by including linear features of the bare-earth terrain. Hydro Breaklines: Breaklines maintain the definition of water-related features in an elevation model. They are used to capture linear discontinuities in the surface, lake shorelines, single-line drains for small rivers, and double-line drains for large rivers. [Breakline File Type = SHP Breakline Elevation Units = US Survey Feet Downhill Treatment Applied = Monotonic Type of Hydro Treatment Required = Hydro-flattened] Countywide Digital Elevation Model (DEM): A DEM represents the bare-Earth surface, removing all natural and built features. The dataset contains a single file covering the entire county. Tiled Digital Elevation Model (DEM): A Digital Elevation Model (DEM) represents the bare-Earth surface, removing all natural and built features. The data contains (possibly) hundreds of individual files available to download as small tiled geographic areas over the extent of an entire county. [Raster File Type = TIFF Bit Depth/Pixel Type = 32-bit float Raster Cell Size = 2 foot Interpolation or Resampling Technique = Triangulated Irregular Network Required Vertical Accuracy = 19.6 cm NVA ] Digital Surface Model (DSM): A Digital Surface Model (DSM) captures both the natural and built/artificial features of the environment.
- Temporal Extent
- Time Instant
- 2018-01-01T00:00:00
- ISO Topic Category
- elevation
- Place Keyword
- Clark County
-
Wisconsin
- Place Keyword Thesaurus
- GNS
- Theme Keyword
-
Digital elevation models
- Theme Keyword Thesaurus
- LCSH
- Theme Keyword
- Lidar
- Remote sensing
- Contours
- Grids
- Surface models
- Terrain models
- Hydrography
- Topography
-
Elevations
- Theme Keyword Thesaurus
- LCSH
- Status
- completed
- Maintenance and Update Frequency
- unknown
- Language
- Credit
- Clark County
- Point of Contact
- Contact
- Clark County
- Delivery Point
- 517 Court St. Room 204
- City
- Neillsville
- Administrative Area
- WI
- Postal Code
- 54456
- Phone
- 715-743-5130
Spatial Reference Information
- Reference System Identifier
- Code
- 7596
- Code Space
- EPSG
- Version
- 9.7
Data Quality Information
Distribution Information
- Format Name
- Various
- Format Version
- 1.0
- Distributor
- University of Wisconsin-Madison
- Distributor
- Online Access
- https://web.s3.wisc.edu/wsco-wisconsinview/lidar/
- Protocol
- WWW:DOWNLOAD-1.0-http--download
- Name
- WisconsinView.org
- Function
- download
Spatial Representation Information
- Vector
- Topology Level
- geometryOnly
- Vector Object Type
- surface
- Vector Object Count
Metadata Reference Information
- Hierarchy Level
- dataset
- Metadata File Identifier
- AD91B106-F451-4BEA-B203-DA056C72F357
- Metadata Point of Contact
- Name
- Arthur H. Robinson Map Library
- Position Name
- Metadata Technician
- Delivery Point
- 550 N. Park Street
- City
- Madison
- Administrative Area
- WI
- Postal Code
- 53706
- Country
- US
- askmap@library.wisc.edu
- Phone
- (608) 262-1471
- Metadata Date Stamp
- Metadata Standard Name
- ISO 19139 Geographic Information - Metadata - Implementation Specification
- Metadata Standard Version
- 2007
- Character Set
- utf8