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Data for quantifying evapotranspiration from the wetlands in the peripheral area between the most downstream stream gages and the open water body of the Great Salt Lake
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Created: Apr 01, 2025 at 2:50 p.m. (UTC)
Last updated: Apr 27, 2026 at 2:23 p.m. (UTC) (Metadata update)
Published date: Apr 27, 2026 at 2:23 p.m. (UTC)
DOI: 10.4211/hs.9eb0ac8952d54b91b703213fbe091c24
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Abstract

Study Region: The eastern peripheral area between the most downstream stream gages and the open water body of the Great Salt Lake (GSL), located in northern Utah within the semiarid western United States (US).

Study Focus: As GSL levels decline, the eastern peripheral area is expanding, exposing former lakebed, much of which has transitioned into natural and managed wetlands. Evapotranspiration (ET) from these wetlands consumes water that would otherwise reach the open-water lake body, yet these losses remain poorly quantified and directly affect the GSL water balance. This study compares a water-balance-based ET estimate for the wetlands in the peripheral area with remotely sensed ET estimates to improve understanding of water losses and inform strategies to mitigate continued lake-level decline.

New Hydrological Insights for the Region: Wetlands covered between 49 and 57% of the GSL eastern peripheral area during the 2003-2021 analysis period and were associated with ET values ranging from 671.01 to 1036.47 mm, with a mean of 886.41 mm, corresponding to an estimated volume of 0.82 ± 0.26 × 10⁹ m³ yr⁻¹ and resulting in, on average, in a 17% reduction of the streamflow between its measurement at the most downstream gages and its entry into the lake. These findings highlight the importance of water losses in the GSL eastern peripheral area on lake inflows.

This resource contains data for the paper: Abualqumboz, M. S. and D. G. Tarboton, (2026), "Quantifying evapotranspiration from the wetlands in the peripheral area between the most downstream stream gages and the open water body of the Great Salt Lake," Journal of Hydrology Regional Studies, http://doi.org/10.1016/j.ejrh.2026.103482.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
The Great Salt Lake
North Latitude
41.7971°
East Longitude
-111.5442°
South Latitude
40.4356°
West Longitude
-113.2745°

Temporal

Start Date:
End Date:

Content

readme.txt 

This resource includes the data and code used to produce the results and graphs of the "Quantifying evapotranspiration from the peripheral area between the most downstream stream gages and the open water body of the Great Salt Lake" study.

1. Download the folder "InputData_RCode" and all of its contents.
2. Open the "GSL_PeripheralAreaEvap.Rproj" and go to the "DataAnalysis_and_Plotting.R" R file and run the code. Make sure to keep all the files within their current directory for the code to find them. The "DataAnalysis_and_Plotting.R" R file can be run without the "GSL_PeripheralAreaEvap.Rproj" R project, but make sure that the code can find the required input files.

The file named "ClimateDataCollection.R" was used to retrieve GSL climate data from the Climate Engine platform using its API. This file will use several R functions from the "functions.R" file

3. The ArcGIS_work.zip file includes all raster files and shapefiles used in this study

Related Resources

This resource is described by Abualqumboz, M. S. and D. G. Tarboton, (2026), "Quantifying Evapotranspiration from the Peripheral Area between the Most Downstream Stream Gages and the Open Water Body of the Great Salt Lake," Journal of Hydrology Regional Studies, http://doi.org/10.1016/j.ejrh.2026.103482.

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
Utah Water Research Laboratory Graduate Research Assistantship None
Ecology Center, Utah State University Climate Adaptation Science Fellowship None

How to Cite

Abualqumboz, M., D. Tarboton (2026). Data for quantifying evapotranspiration from the wetlands in the peripheral area between the most downstream stream gages and the open water body of the Great Salt Lake, HydroShare, https://doi.org/10.4211/hs.9eb0ac8952d54b91b703213fbe091c24

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

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

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