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Map Name: Layers

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• Valleys (0)

Description:

Copyright Text:

Spatial Reference: PROJCS["NAD_1983_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-74.5],PARAMETER["Standard_Parallel_1",40.33333333],PARAMETER["Standard_Parallel_2",44.66666666],PARAMETER["Latitude_Of_Origin",39.0],UNIT["Meter",1.0]]


Single Fused Map Cache: false

Initial Extent:

XMin: -71168.09647793835
YMin: 491189.7142175335
XMax: 711145.9865393317
YMax: 1002355.1420170077
Spatial Reference: PROJCS["NAD_1983_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-74.5],PARAMETER["Standard_Parallel_1",40.33333333],PARAMETER["Standard_Parallel_2",44.66666666],PARAMETER["Latitude_Of_Origin",39.0],UNIT["Meter",1.0]]

Full Extent:

XMin: 74189.82058290385
YMin: 236246.07122235
XMax: 534656.1868423724
YMax: 952005.4843225246
Spatial Reference: PROJCS["NAD_1983_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-74.5],PARAMETER["Standard_Parallel_1",40.33333333],PARAMETER["Standard_Parallel_2",44.66666666],PARAMETER["Latitude_Of_Origin",39.0],UNIT["Meter",1.0]]

Units: esriMeters

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info:

Title: Valleys
Author: Dan Morse
Comments: Valleys (areas that are lower than their neighbors) are extracted from a Digital Elevation Model by finding the mean elevation within a certain radius, then subtracting the actual elevation from the mean. We accommodate the diversity of valley shapes and sizes by sampling the landscape at seven scales: 1, 2, 4, 7, 11, 16, and 22 km radius. The seven models are combined, and locations where at least four models occur together are flagged as valleys.
Subject: Valley depths extracted from Digital Elevation Model
Category:
Keywords: Region 1 GIS, Valleys
AntialiasingMode: None
TextAntialiasingMode: Force

Supports Dynamic Layers: true

MaxRecordCount: 1000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON

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Min Scale: 0

Max Scale: 0

Supports Datum Transformation: true



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