Nenana_Totchaket_2020_dtm (ImageServer)

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Service Description: The hydro-flattened 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. All rivers greater than 30 meters in width and lakes at least 150 square meters in size have been flattened to consistent elevations. Water boundary polygons were developed using an algorithm which weights lidar-derived slopes, intensities, and return densities to detect the water's edge. Elevation values were then assigned to the water's edge from the lidar data creating 3D breaklines enforced during model creation to flatten water bodies. Some elevation values have been interpolated across areas in the ground model where there is no elevation data (e.g. under dense vegetation). The horizontal datum for this dataset is NAD83 (2011), the vertical datum is NAVD88, Geoid 12B, and the data is projected in UTM Zone 6. Units are in Meters. Quantum Spatial collected the Nenana-Totchaket Aerial Survey & Mapping lidar data for Alaska Department of Natural Resources between 07/11/2020 and 07/31/2020.

Name: Nenana_Totchaket_2020_dtm

Description: The hydro-flattened 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. All rivers greater than 30 meters in width and lakes at least 150 square meters in size have been flattened to consistent elevations. Water boundary polygons were developed using an algorithm which weights lidar-derived slopes, intensities, and return densities to detect the water's edge. Elevation values were then assigned to the water's edge from the lidar data creating 3D breaklines enforced during model creation to flatten water bodies. Some elevation values have been interpolated across areas in the ground model where there is no elevation data (e.g. under dense vegetation). The horizontal datum for this dataset is NAD83 (2011), the vertical datum is NAVD88, Geoid 12B, and the data is projected in UTM Zone 6. Units are in Meters. Quantum Spatial collected the Nenana-Totchaket Aerial Survey & Mapping lidar data for Alaska Department of Natural Resources between 07/11/2020 and 07/31/2020.

Single Fused Map Cache: false

Extent:

Initial Extent:

Full Extent:

Pixel Size X: 1.0

Pixel Size Y: 1.0

Band Count: 1

Pixel Type: F32

RasterFunction Infos: {"rasterFunctionInfos": [ { "name": "Hillshade", "description": "A raster function template.", "help": "" }, { "name": "None", "description": "Make a Raster or Raster Dataset into a Function Raster Dataset.", "help": "" }, { "name": "Aspect", "description": "A raster function template.", "help": "" }, { "name": "ElevationColorRamp1", "description": "A raster function template.", "help": "" }, { "name": "Hillshade_Green_Tint", "description": "A raster function template.", "help": "" }, { "name": "hillshade_test", "description": "test", "help": "" }, { "name": "Shaded Relief 1", "description": "A raster function template.", "help": "" }, { "name": "Shaded Relief", "description": "A raster function template.", "help": "" }, { "name": "Slope", "description": "A raster function template.", "help": "" }, { "name": "Unit Conversion", "description": "Changes values from one unit of measurement to another.", "help": "" }, { "name": "contour (10 ft)", "description": "contour 10 ft\n", "help": "" }, { "name": "contour (1 ft)", "description": "contour 1 ft", "help": "" }, { "name": "contour (5ft)", "description": "A raster function template.", "help": "" } ]}

Mensuration Capabilities: None

Has Histograms: true

Has Colormap: false

Has Multi Dimensions : false

Rendering Rule:

Min Scale: 0

Max Scale: 0

Copyright Text: Alaska Department of Natural Resources

Service Data Type: esriImageServiceDataTypeGeneric

Min Values: 97.25819396972656

Max Values: 182.61871337890625

Mean Values: 132.32539056828153

Standard Deviation Values: 17.09437368706358

Object ID Field: OBJECTID

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Default Mosaic Method: Northwest

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

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Default Compression Quality: 75

Default Resampling Method: Bilinear

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 Copy: true

Allow Analysis: true

Allow Compute TiePoints: false

Supports Statistics: true

Supports Advanced Queries: true

Use StandardizedQueries: true

Raster Type Infos:

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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 Compute Histograms Compute Statistics Histograms Get Samples Compute Class Statistics Query Boundary Compute Pixel Location Compute Angles Validate Project