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Elevation/IL_Statewide_Lidar_DEM_SPE (ImageServer)

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Service Description: This Digital Elevation Model (DEM) service was produced all or in part from LiDAR information from collections ranging from 2007 to present. The LiDAR derived DEM covers Calhoun County, Illinois and include inland streams, rivers, lakes ponds and tidal features. The LiDAR derived DEM covers counties in the State Plane East area of Illinois and includes inland streams, rivers, lakes ponds and tidal features. These data are appropriate for use in local and regional analysis. Digital Elevation Models (including terrain and surface models) are raster data sets created from whole LiDAR point cloud data sets (LAS files). The LAS files are the standard LiDAR file format which contains the raw point cloud data, these data are normally classified and distinguished between points on the ground, water or elevated features such as buildings, trees, towers, bridges, etc.. These LAS files are processed into elevation models to create gridded rasters. The first returns can be used to map the top reflective surface (Digital Surface Models - DSM), these normally include open terrain areas, as well as the tops of buildings, trees, towers, and other features elevated above the bare earth. The last returns are used to map the bare-earth terrain (Digital Terrain Models - DTM), these are normally produced with irregularly-spaced points rather than the uniform grid structure of a Digital Elevation Model (DEM), Digital Terrain Models will often include breaklines to help define edges of water bodies.

Name: Elevation/IL_Statewide_Lidar_DEM_SPE

Description: This Digital Elevation Model (DEM) service was produced all or in part from LiDAR information from collections ranging from 2007 to present. The LiDAR derived DEM covers Calhoun County, Illinois and include inland streams, rivers, lakes ponds and tidal features. The LiDAR derived DEM covers counties in the State Plane East area of Illinois and includes inland streams, rivers, lakes ponds and tidal features. These data are appropriate for use in local and regional analysis. Digital Elevation Models (including terrain and surface models) are raster data sets created from whole LiDAR point cloud data sets (LAS files). The LAS files are the standard LiDAR file format which contains the raw point cloud data, these data are normally classified and distinguished between points on the ground, water or elevated features such as buildings, trees, towers, bridges, etc.. These LAS files are processed into elevation models to create gridded rasters. The first returns can be used to map the top reflective surface (Digital Surface Models - DSM), these normally include open terrain areas, as well as the tops of buildings, trees, towers, and other features elevated above the bare earth. The last returns are used to map the bare-earth terrain (Digital Terrain Models - DTM), these are normally produced with irregularly-spaced points rather than the uniform grid structure of a Digital Elevation Model (DEM), Digital Terrain Models will often include breaklines to help define edges of water bodies.

Single Fused Map Cache: false

Extent: Initial Extent: Full Extent: Pixel Size X: 1.5

Pixel Size Y: 1.5

Band Count: 1

Pixel Type: F32

RasterFunction Infos: {"name":"None","description":"","help":""}

Mensuration Capabilities: None

Has Histograms: true

Has Colormap: false

Has Multi Dimensions : false

Rendering Rule:

Min Scale: 0

Max Scale: 0

Copyright Text:

Service Data Type: esriImageServiceDataTypeGeneric

Min Values: 199.1924591064453

Max Values: 1191.543701171875

Mean Values: 752.2072266896206

Standard Deviation Values: 109.19972802660715

Object ID Field: OBJECTID

Fields: Default Mosaic Method: Northwest

Allowed Mosaic Methods: NorthWest,Center,LockRaster,ByAttribute,Nadir,Viewpoint,Seamline,None

SortField:

SortValue: null

Mosaic Operator: First

Default Compression Quality: 75

Default Resampling Method: Bicubic

Max Record Count: 1000

Max Image Height: 4100

Max Image Width: 15000

Max Download Image Count: 20

Max Mosaic Image Count: 20

Allow Raster Function: true

Allow Compute TiePoints: false

Supports Statistics: true

Supports Advanced Queries: true

Use StandardizedQueries: true

Raster Type Infos: Has Raster Attribute Table: false

Edit Fields Info: null

Ownership Based AccessControl For Rasters: null

Child Resources:   Info   Histograms   Key Properties   Legend   MultiDimensionalInfo   rasterFunctionInfos

Supported Operations:   Export Image   Query   Identify   Compute Histograms   Compute Statistics Histograms   Get Samples   Compute Class Statistics