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Service Description: This is a seamless bare earth digital elevation model (DEM) created from lidar terrain elevation data the elevation above/below sea level in meters. MassGIS added a FEET field to the VAT (value attribute table) to store the elevation in feet as calculated by multiplying VALUE x 3.28084.
Dates of lidar data used in this DEM range from 2010-2015. The overlapping lidar projects were adjusted to the same projection and datum and then mosaicked, with the most recent data replacing any older data. Several very small gaps between the project areas were patched with older lidar data where necessary or with models from recent aerial photo acquisitions. See https://www.mass.gov/doc/lidar-project-areas-original/download for an index map.
This DEM is referenced to the WGS_1984_Web_Mercator_Auxiliary_Sphere spatial reference.
Orthos/LiDAR_DEM_2022
Description: This is a seamless bare earth digital elevation model (DEM) created from lidar terrain elevation data the elevation above/below sea level in meters. MassGIS added a FEET field to the VAT (value attribute table) to store the elevation in feet as calculated by multiplying VALUE x 3.28084.
Dates of lidar data used in this DEM range from 2010-2015. The overlapping lidar projects were adjusted to the same projection and datum and then mosaicked, with the most recent data replacing any older data. Several very small gaps between the project areas were patched with older lidar data where necessary or with models from recent aerial photo acquisitions. See https://www.mass.gov/doc/lidar-project-areas-original/download for an index map.
This DEM is referenced to the WGS_1984_Web_Mercator_Auxiliary_Sphere spatial reference.
false
Extent:
XMin: -8075204.87570006
YMin: 5165908.1220764965
XMax: -8065909.855385528
YMax: 5174555.514630555
Spatial Reference: 102100
(3857)
Initial Extent:
XMin: -8075204.87570006
YMin: 5165908.1220764965
XMax: -8065909.855385528
YMax: 5174555.514630555
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -8075204.87570006
YMin: 5165908.1220764965
XMax: -8065909.855385528
YMax: 5174555.514630555
Spatial Reference: 102100
(3857)
Pixel Size X: 1.3778565541850478
Pixel Size Y: 1.378070526543218
Band Count: 1
Pixel Type: S16
RasterFunction Infos: {"rasterFunctionInfos": [{
"name": "None",
"description": "",
"help": ""
}]}
Mensuration Capabilities: Basic
Has Histograms: true
Has Colormap: false
Has Multi Dimensions : false
Rendering Rule:
Min Scale: 0
Max Scale: 0
Copyright Text: MassGIS
Service Data Type: esriImageServiceDataTypeGeneric
Min Values: 46
Max Values: 128
Mean Values: 75.88608747063252
Standard Deviation Values: 12.593926153703384
Object ID Field:
Fields:
None
Default Mosaic Method: Center
Allowed Mosaic Methods:
SortField:
SortValue: null
Mosaic Operator: First
Default Compression Quality: 75
Default Resampling Method: Bilinear
Max Record Count: null
Max Image Height: 4100
Max Image Width: 15000
Max Download Image Count: null
Max Mosaic Image Count: null
Allow Raster Function: true
Allow Copy: null
Allow Analysis: null
Allow Compute TiePoints: false
Supports Statistics: false
Supports Advanced Queries: false
Use StandardizedQueries: true
Raster Type Infos:
Name: Raster Dataset
Description: Supports all ArcGIS Raster Datasets
Help:
Has Raster Attribute Table: true
Edit Fields Info: null
Ownership Based AccessControl For Rasters: null
Child Resources:
Info
Raster Attribute Table
Histograms
Key Properties
Legend
Raster Function Infos
Supported Operations:
Export Image
Identify
Measure
Compute Histograms
Compute Statistics Histograms
Get Samples
Compute Class Statistics
Query Boundary
Compute Pixel Location
Compute Angles
Validate
Project