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Service Description: A wetness index is based on the idea that a terrain profile controls the distribution of water and areas subject to water accumulation. This index was first developed by Beven and Kirkby within their physically based runoff model, TOPMODEL, which is based on the assumption that the hydraulic slope will be equal to the topographic slope, and simulates groundwater and surface-water interactions with topography to identify which areas are susceptible to saturated land surfaces and thus have a high potential to produce surface ponding.
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Spatial Reference:
102100
(3857)
Single Fused Map Cache: false
Initial Extent:
XMin: -9785535.438129375
YMin: 5120981.980442581
XMax: -9755415.211222248
YMax: 5135565.842943641
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -9825552.666174194
YMin: 5081661.332326457
XMax: -9742342.099753061
YMax: 5184122.800449393
Spatial Reference: 102100
(3857)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Topographic Wetmess Index
Author: Clayton Ballerine
Comments: A wetness index is based on the idea that a terrain profile controls the distribution of water and areas subject to water accumulation. This index was first developed by Beven and Kirkby within their physically based runoff model, TOPMODEL, which is based on the assumption that the hydraulic slope will be equal to the topographic slope, and simulates groundwater and surface-water interactions with topography to identify which areas are susceptible to saturated land surfaces and thus have a high potential to produce surface ponding.
Subject: Topographic Wetness Index displaying areas susceptible to saturated land surfaces and has the potential be affected by surface ponding.
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Keywords: TWI
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TextAntialiasingMode: Force
Supports Dynamic Layers: false
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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