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Service Description: Bathymetric, topographic, and grain-size data were collected from May 2013 to October 2016 along a 15-mi reach of the Colorado River in Glen Canyon National Recreation Area, Arizona by the U.S. Geological Survey Grand Canyon Monitoring and Research Center. The study reach is located from river miles -15 at the base of Glen Canyon Dam to 0 at Lees Ferry. Channel bathymetry was mapped using multi-beam bathymetry collected in November 2014 and single beam bathymetry collected in February 2015, August 2015, February 2016, and June 2016. Subaerial topography was mapped using photogrammetry derived from aerial Imagery collected in May 2013 and ground-based total-stations collected in February 2015, October 2015, and October 2016. Bed-sediment grain-size data were collected in November 2014 using an underwater digital microscope system. These data were combined to produce digital elevation models, spatially variable estimates of digital elevation model uncertainty, georeferenced grain-size data, and bed-sediment distribution maps.

Map Name: Layers

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Layers:

• Channel Map Glen Canyon 2014 (1m DEM) (0)
• Channel Map Glen Canyon Bed Class (1)
• Channel Map Glen Canyon Point Density (2)
• Channel Map Glen Canyon Data Sources (3)
• Channel Map Glen Canyon Uncertainty (4)
• Channel Map Glen Canyon 2014 (1m HSD) (5)

Description:

Copyright Text: U.S. Geological Survey, Grand Canyon Monitoring and Research Center

Spatial Reference: 102988  (6404)


Single Fused Map Cache: false

Initial Extent:

XMin: 241811.49999999994
YMin: 647082.1999999995
XMax: 253020.5
YMax: 659155.8
Spatial Reference: 102988  (6404)

Full Extent:

XMin: 242320.99999999994
YMin: 647630.9999999995
XMax: 252511
YMax: 658607
Spatial Reference: 102988  (6404)

Units: esriMeters

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

Document Info:

Title:
Author:
Comments: Bathymetric, topographic, and grain-size data were collected from May 2013 to October 2016 along a 15-mi reach of the Colorado River in Glen Canyon National Recreation Area, Arizona by the U.S. Geological Survey Grand Canyon Monitoring and Research Center. The study reach is located from river miles -15 at the base of Glen Canyon Dam to 0 at Lees Ferry. Channel bathymetry was mapped using multi-beam bathymetry collected in November 2014 and single beam bathymetry collected in February 2015, August 2015, February 2016, and June 2016. Subaerial topography was mapped using photogrammetry derived from aerial Imagery collected in May 2013 and ground-based total-stations collected in February 2015, October 2015, and October 2016. Bed-sediment grain-size data were collected in November 2014 using an underwater digital microscope system. These data were combined to produce digital elevation models, spatially variable estimates of digital elevation model uncertainty, georeferenced grain-size data, and bed-sediment distribution maps.
Subject: This map service contains bathymetry and topography data sets collected, processed and derived from the Colorado River Channel Mapping mission of Glen Canyon conducted in 2014 and associated topography data derived from imagery collected in 2013.
Category:
Keywords: Aerial Photography,Arizona,Bathymetry,Channel Mapping,Colorado River,Digital Elevation Model,Digital Surface Model,DSM,elevation,ellipsoid heights,GCMRC,Glen Canyon,Glen Canyon National Recreation Area,Hillshade,Topography,USGS
AntialiasingMode: None
TextAntialiasingMode: Force

Supports Dynamic Layers: true

MaxRecordCount: 1000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON

Supports Query Data Elements:

Min Scale: 250000

Max Scale: 1000

Supports Datum Transformation: true



Child Resources:   Info   Dynamic Layer

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