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Service Description: The Water Mask is a grid file indicating all surface waters; including, lakes, rivers, streams, wetlands, estuaries, and nearshore ocean waters, as mapped in the 1:100,000-scale. The Water Mask is created using grid analysis to combine the surface water features of two datasets. First, the surface water features from the 2011 National Land Cover Database (NLCD). Features included are 'Open Water' (code 11), 'Woody Wetlands' (code 90) and 'Emergent Herbaceous Wetlands' (code 95). Source data used was NLCD2011 version 1 (see NLCD metadata for more information). Second, the flowline and waterbody features as represented in the catseed grid from the National Hydrography Dataset (NHD) Plus version 2. Source data used was NHD Plus Version 2.1, downloaded October 31, 2012 (see NHD Plus Version 2.1 metadata for more information). A cell value of 1 in the grid indicates that the cell represents surface water. The combination of these two datasets into a grid represents surface water and is referred to as the Water Mask.

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Layers:

• Water Mask (0)

Description:

Copyright Text: US EPA, Region 4

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",-96.0],PARAMETER["Standard_Parallel_1",29.5],PARAMETER["Standard_Parallel_2",45.5],PARAMETER["Latitude_Of_Origin",23.0],UNIT["Meter",1.0]]


Single Fused Map Cache: false

Initial Extent:

XMin: -1751961.470065483
YMin: 428733.55916744797
XMax: 1430476.2614593068
YMax: 2800083.075070161
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",-96.0],PARAMETER["Standard_Parallel_1",29.5],PARAMETER["Standard_Parallel_2",45.5],PARAMETER["Latitude_Of_Origin",23.0],UNIT["Meter",1.0]]

Full Extent:

XMin: -2493045.0000000005
YMin: 177284.99999999814
XMax: 2342655.0000000005
YMax: 3310005.000000001
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",-96.0],PARAMETER["Standard_Parallel_1",29.5],PARAMETER["Standard_Parallel_2",45.5],PARAMETER["Latitude_Of_Origin",23.0],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: Water Mask
Author: US EPA, Region 4
Comments: The Water Mask is a grid file indicating all surface waters; including, lakes, rivers, streams, wetlands, estuaries, and nearshore ocean waters, as mapped in the 1:100,000-scale. The Water Mask is created using grid analysis to combine the surface water features of two datasets. First, the surface water features from the 2011 National Land Cover Database (NLCD). Features included are 'Open Water' (code 11), 'Woody Wetlands' (code 90) and 'Emergent Herbaceous Wetlands' (code 95). Source data used was NLCD2011 version 1 (see NLCD metadata for more information). Second, the flowline and waterbody features as represented in the catseed grid from the National Hydrography Dataset (NHD) Plus version 2. Source data used was NHD Plus Version 2.1, downloaded October 31, 2012 (see NHD Plus Version 2.1 metadata for more information). A cell value of 1 in the grid indicates that the cell represents surface water. The combination of these two datasets into a grid represents surface water and is referred to as the Water Mask.
Subject: The water mask shows all surface water features including lakes, rivers, streams, wetlands, estuaries, and nearshore ocean waters.
Category:
Keywords: Water Mask,Water,Hydrology,WSIO,Watershed Index
AntialiasingMode: None
TextAntialiasingMode: Force

Supports Dynamic Layers: false

MaxRecordCount: 1000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, AMF, geoJSON

Min Scale: 0

Max Scale: 0

Supports Datum Transformation: true



Child Resources:   Info

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