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elevation/prince_of_wales_2017_dtm (ImageServer)

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Service Description: These lidar data are processed classified LAS 1.4 files, formatted to 6333 individual 1,000-meter x 1,000-meter tiles; used to create intensity images, 3D breaklines and hydro-flattened DEMs as necessary. Geographic Extent: Partial coverage of Prince of Wales-Hyder Census Area in southeastern Alaska, covering approximately 2055.6 total square miles over Prince of Wales Island. Dataset Description: The Prince of Wales, AK 2017 QL1 LiDAR project called for the planning, acquisition, processing, and derivative products of LiDAR data to be collected at a nominal pulse spacing (NPS) of 0.35 meters. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base LiDAR Specification, Version 1.2. The data were developed based on a horizontal projection/datum of NAD83 (2011), UTM Zone 8, meters and vertical datum of NAVD88 (GEOID12B), meters. LiDAR data were delivered as flightline-extent unclassified LAS swaths, as processed Classified LAS 1.4 files formatted to 6333 individual 1,000-meter x 1,000-meter tiles. Tiled intensity imagery, tiled bare earth digital elevation models (DEMs), tiled first return digital surface models (DSMs), tiled shaded relief rasters, and tiled 1-foot contours were produced using a 2,000-meter x 2,000-meter schema (1705 tiles). Continuous breaklines were produced in Esri file geodatabase format. Building footprints were created in Esri file geodatabase format. Ground Conditions: LiDAR was collected in the spring, summer, and fall of 2017, when the least amount of snow was on the ground and rivers were at or below normal levels. In order to post process the LiDAR data to meet task order specifications and meet ASPRS vertical accuracy guidelines, Quantum Spatial, Inc. established a total of 79 ground control points that were used to calibrate the LiDAR to known ground locations established throughout the project area. An additional 127 independent accuracy checkpoints, 74 in Bare Earth and Urban landcovers (74 NVA points), 53 in Forested, Shrubs, and Tall Weeds categories (53 VVA points), were used to assess the vertical accuracy of the data. These checkpoints were not used to calibrate or post process the data.

Name: elevation/prince_of_wales_2017_dtm

Description: These lidar data are processed classified LAS 1.4 files, formatted to 6333 individual 1,000-meter x 1,000-meter tiles; used to create intensity images, 3D breaklines and hydro-flattened DEMs as necessary. Geographic Extent: Partial coverage of Prince of Wales-Hyder Census Area in southeastern Alaska, covering approximately 2055.6 total square miles over Prince of Wales Island. Dataset Description: The Prince of Wales, AK 2017 QL1 LiDAR project called for the planning, acquisition, processing, and derivative products of LiDAR data to be collected at a nominal pulse spacing (NPS) of 0.35 meters. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base LiDAR Specification, Version 1.2. The data were developed based on a horizontal projection/datum of NAD83 (2011), UTM Zone 8, meters and vertical datum of NAVD88 (GEOID12B), meters. LiDAR data were delivered as flightline-extent unclassified LAS swaths, as processed Classified LAS 1.4 files formatted to 6333 individual 1,000-meter x 1,000-meter tiles. Tiled intensity imagery, tiled bare earth digital elevation models (DEMs), tiled first return digital surface models (DSMs), tiled shaded relief rasters, and tiled 1-foot contours were produced using a 2,000-meter x 2,000-meter schema (1705 tiles). Continuous breaklines were produced in Esri file geodatabase format. Building footprints were created in Esri file geodatabase format. Ground Conditions: LiDAR was collected in the spring, summer, and fall of 2017, when the least amount of snow was on the ground and rivers were at or below normal levels. In order to post process the LiDAR data to meet task order specifications and meet ASPRS vertical accuracy guidelines, Quantum Spatial, Inc. established a total of 79 ground control points that were used to calibrate the LiDAR to known ground locations established throughout the project area. An additional 127 independent accuracy checkpoints, 74 in Bare Earth and Urban landcovers (74 NVA points), 53 in Forested, Shrubs, and Tall Weeds categories (53 VVA points), were used to assess the vertical accuracy of the data. These checkpoints were not used to calibrate or post process the data.

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": "None", "description": "A No-Op Function.", "help": "" }, { "name": "Hillshade", "description": "A raster function template.", "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": "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": "" } ]}

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: -1.149999976158142

Max Values: 1204.08349609375

Mean Values: 210.4266638352304

Standard Deviation Values: 195.4223885374999

Object ID Field: OBJECTID

Fields: Default Mosaic Method: Northwest

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

SortField:

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Mosaic Operator: First

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