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Elevation/2020_Lidar_Terrain (ImageServer)

View In:   ArcGIS JavaScript   ArcGIS Online Map Viewer   ArcGIS Earth

Service Description:

This dynamic layer provides elevation data from the 2020 Northern Shenandoah lidar collection, which took place between 11/29/2020 and 1/12/2021. Different visualizations can be created through the use of raster functions applied to the source data. The surfaces available for raster functions include a high-resolution digital elevation model (DEM) and a digital surface model (DSM) to model bare earth or above ground surfaces.

Layer Applications

Use for Visualization: Yes, this is the primary layer use. Bare earth and above ground surfaces can be modeled using the different raster functions available in the symbology pane.

Use for Analysis: No, this layer should not be used for analysis workflows.

How was this made?

Lidar point clouds were processed in ArcGIS Pro to generate a DEM and DSM with a cell size of 0.5 meters. The raster surfaces were then loaded into a mosaic dataset built using a source/derived management style. Then, raster function template files were generated and applied to the rasters, allowing the hillshade surfaces to be created. These surfaces are highly accurate in terms of spatial location and depicting the earth's surface at the time of collection.

Want to learn more?

USGS What is Lidar?

USGS EarthWord



Name: Elevation/2020_Lidar_Terrain

Description:

This dynamic layer provides elevation data from the 2020 Northern Shenandoah lidar collection, which took place between 11/29/2020 and 1/12/2021. Different visualizations can be created through the use of raster functions applied to the source data. The surfaces available for raster functions include a high-resolution digital elevation model (DEM) and a digital surface model (DSM) to model bare earth or above ground surfaces.

Layer Applications

Use for Visualization: Yes, this is the primary layer use. Bare earth and above ground surfaces can be modeled using the different raster functions available in the symbology pane.

Use for Analysis: No, this layer should not be used for analysis workflows.

How was this made?

Lidar point clouds were processed in ArcGIS Pro to generate a DEM and DSM with a cell size of 0.5 meters. The raster surfaces were then loaded into a mosaic dataset built using a source/derived management style. Then, raster function template files were generated and applied to the rasters, allowing the hillshade surfaces to be created. These surfaces are highly accurate in terms of spatial location and depicting the earth's surface at the time of collection.

Want to learn more?

USGS What is Lidar?

USGS EarthWord



Single Fused Map Cache: false

Extent: Initial Extent: Full Extent: Pixel Size X: 0.5

Pixel Size Y: 0.5

Band Count: 1

Pixel Type: F32

RasterFunction Infos: {"rasterFunctionInfos": [ { "name": "Multidirectional Hillshade DEM", "description": "Hillshade applied to a DEM (Bare Earth) created for visualizations.", "help": "" }, { "name": "Multidirectional Hillshade DSM", "description": "Hillshade applied to a DSM (Above Ground Surface) created for visualizations.", "help": "" }, { "name": "Shaded Relief DEM", "description": "Colored hillshade applied to a DEM (Bare Earth) created for visualizations.", "help": "" }, { "name": "Shaded Relief DSM", "description": "Colored hillshade applied to a DSM (Above Ground Surface) created for visualizations.\n", "help": "" }, { "name": "Traditional Hillshade DEM", "description": "Hillshade applied to a DEM (Bare Earth) created for visualizations.", "help": "" }, { "name": "Traditional Hillshade DSM", "description": "Hillshade applied to a DSM (Above Ground Surface) created for visualizations.", "help": "" }, { "name": "None", "description": "", "help": "" } ]}

Mensuration Capabilities: Basic

Inspection Capabilities:

Has Histograms: true

Has Colormap: false

Has Multi Dimensions : false

Rendering Rule:

Min Scale: 0

Max Scale: 0

Copyright Text: U.S. Geological Survey, City of Harrisonburg

Service Data Type: esriImageServiceDataTypeElevation

Min Values: 342.5525817871094

Max Values: 891.4422607421875

Mean Values: 428.03879481148675

Standard Deviation Values: 55.696143552050614

Object ID Field: OBJECTID

Fields: Default Mosaic Method: ByAttribute

Allowed Mosaic Methods: ByAttribute,None,LockRaster

SortField: BEST

SortValue: 0

Mosaic Operator: First

Default Compression Quality: 80

Default Resampling Method: Bilinear

Max Record Count: 200

Max Image Height: 4100

Max Image Width: 15000

Max Download Image Count: 0

Max Mosaic Image Count: 20

Allow Raster Function: true

Allow Copy: true

Allow Analysis: 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   Statistics   Key Properties   Legend   Raster Function Infos

Supported Operations:   Export Image   Query   Identify   Measure   Compute Histograms   Compute Statistics Histograms   Get Samples   Compute Class Statistics   Query GPS Info   Find Images   Image to Map   Map to Image   Measure from Image   Image to Map Multiray   Query Boundary   Compute Pixel Location   Compute Angles   Validate   Project   Calculate Volume