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Lake Powell Recovery Under Sustained High-Flow Scenarios: A CRSS Evaluation


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Created: Apr 21, 2026 at 10:08 p.m. (UTC)
Last updated: Apr 27, 2026 at 2:20 p.m. (UTC) (Metadata update)
Published date: Apr 27, 2026 at 2:20 p.m. (UTC)
DOI: 10.4211/hs.c72e726546d14d4898b41321ae68f2f6
Citation: See how to cite this resource
Sharing Status: Published
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Abstract

This study evaluates whether sustained high-flow hydrologic conditions could restore Lake Powell to the equalization tier elevation of 3,636 ft using the Colorado River Simulation System (CRSS). Two main hydrology's were used for this analysis. The first being 15 million acre-feet (MAF) consistently for the 40 year test period. The second was a record high flow of 21 MAF for one year and then 11.5 MAF for the next 39 years of the test period. These high values represent historical high flows. System performance was assessed using reservoir elevation, storage recovery rate, and comparison to baseline hydrologic scenarios. Results show that under consistently high flows, the basin would recover, and the reservoirs would fill. One great water year would have some impact but not enough to sustain long-term recovery. To achieve long term recovery, basin management strategies must be adjusted.

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Content

ReadMe.txt

This repository contains a copy of the CRSS model and two R studio code files. 

To replicate our work:
1. Download all the files and then run the two r studio files to produce the 29 inflow files necessary to change the hydrology in CRSS.
2. Create new DMIs in Riverware to reference the inflow files and the control files
3. Run the model and export the results to excel

How to Cite

Jones, A., B. Wilding, P. Hansen (2026). Lake Powell Recovery Under Sustained High-Flow Scenarios: A CRSS Evaluation, HydroShare, https://doi.org/10.4211/hs.c72e726546d14d4898b41321ae68f2f6

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

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