Fluvial-aeolian sediment availability models: Colorado River, Grand Canyon
Data for journal manuscript: Landscape-Scale Modeling to Forecast Fluvial-Aeolian Sediment Connectivity in River Valleys
Dates
Publication Date
2024-08-05
Start Date
2002
End Date
2022
Citation
Kasprak, A., Sankey, J.B., and Caster, J.J., 2024, Fluvial-aeolian sediment availability models: Colorado River, Grand Canyon: U.S. Geological Survey data release, https://doi.org/10.5066/P13ZV74M.
Summary
These data were compiled to model the area of exposed, bare sand along 168 km of the Colorado River between Glen Canyon Dam and Bright Angel Creek, Arizona. Objective(s) of our study were to develop and validate four models of exposed sand area for the study reach, respectively based on 1) single-day maxiumum river discharge, 2) multiple-day river discharge patterning, 3) field-observed wind velocities, and 4) remote-sensing measured trends in vegetation areas. These data represent biophysical patterns and processes in the study reach; included here are a) daily records of maximum discharge of the Colorado River at Lees Ferry, Arizona, b) river discharge and exposed sand area throughout the study reach, c) scaling factors for bare [...]
Summary
These data were compiled to model the area of exposed, bare sand along 168 km of the Colorado River between Glen Canyon Dam and Bright Angel Creek, Arizona. Objective(s) of our study were to develop and validate four models of exposed sand area for the study reach, respectively based on 1) single-day maxiumum river discharge, 2) multiple-day river discharge patterning, 3) field-observed wind velocities, and 4) remote-sensing measured trends in vegetation areas. These data represent biophysical patterns and processes in the study reach; included here are a) daily records of maximum discharge of the Colorado River at Lees Ferry, Arizona, b) river discharge and exposed sand area throughout the study reach, c) scaling factors for bare sand areas by year based on observed vegetation extents present in the study reach, and d) scaling factors for bare sand areas by day based on our models throughout the study reach. These data were collected along the Colorado River in Grand Canyon, extending from Glen Canyon Dam downstream to Bright Angel Creek, Arizona. Data collection spanned 2002-2022. These data were collected by the U.S. Geological Survey, Southwest Biological Science Center, Grand Canyon Monitoring and Research Center via field observation (e.g., micrometeorological stations and terrestrial lidar), and remote sensing methods (e.g., classification of aerial photographs). These data can be used to conduct bare exposed sand area modeling for the study reach presented here, and may also serve as a basis for developing models of exposed bare sand area for other river systems where similar data are available.
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Related External Resources
Type: Related Primary Publication
Kasprak, A., Sankey, J.B., and Caster, J.J., 2024, Landscape-Scale Modeling to Forecast Fluvial-Aeolian Sediment Connectivity in River Valleys: Geophysical Research Letters (online), https://doi.org/10.1029/2024GL110106.
The purpose of these data are to enable modeling of the area of exposed, bare sand along 168 km of the Colorado River between Glen Canyon Dam and Bright Angel Creek, Arizona. These data were created to parameterize exposed, bare sand models using information on river flow, land cover, and meteorological data. These data provide a framework for understanding how flows from Glen Canyon Dam will impact upland and riparian exposed sand extents, and may also prove helpful for scientists working to develop models of exposed sand area in other river systems.
Rights
This work is marked with Creative Commons Zero v1.0 Universal (https://creativecommons.org/publicdomain/zero/1.0/). This work is marked with Creative Commons Zero v1.0 Universal (https://creativecommons.org/publicdomain/zero/1.0/). The author(s) of these data request that data users contact them regarding intended use and to assist with understanding limitations and interpretation. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
