Duration-Severity and Cumulative Deficit Analyses for Colorado River Streamflow at Lees Ferry


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Created: Sep 09, 2020 at 5:52 p.m.
Last updated: Sep 15, 2022 at 12:35 p.m.
DOI: 10.4211/hs.bbe8dffacb07458783b2e6924aa615bb
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Abstract

This dataset holds scripts for Duration-Severity and Cumulative Deficit analyses developed to examine the severity of sustained droughts that have impact on storage and water supply in the Colorado River Basin. These analyses were performed using the methods described in Salehabadi, Tarboton et al. (2022; 2020). These studies analyzed the US Bureau of Reclamation Natural flow and Tree Ring Reconstructed flow from Meko et.al., 2017, both at Lees Ferry, using the Duration-Severity and Cumulative Deficit plots, which show the mean flow and cumulative magnitude of departure from average conditions, or “deficit”, for different durations. These plots presented by Salehabadi, Tarboton et al. (2020; 2022) characterize the severity of past droughts that have occurred in the Colorado River Basin. Based on examination of these plots, this study defined three drought scenarios: (1) Millennium Drought, (2) Mid-20th Century Drought, and (3) Paleo Tree Ring Drought. The first two were defined using the US Bureau of Reclamation Natural flows from 2000-2018 and 1953-1977 respectively. The last was defined using the years 1576-1600 from the Meko et al., 2017 tree ring reconstruction of streamflow at Lees Ferry.

- Salehabadi, H., D. G. Tarboton, B. H. Udall, K. G. Wheeler and J. C. Schmidt, (2022), "An Assessment of Potential Severe Droughts in the Colorado River Basin," JAWRA Journal of the American Water Resources Association, https://doi.org/10.1111/1752-1688.13061.
- Salehabadi, H., D. G. Tarboton, E. Kuhn, B. Udall, K. G. Wheeler, D. E. Rosenberg, S. A. Goeking and J. C. Schmidt, (2020), "The Future Hydrology of the Colorado River Basin," White Paper 4, Future of the Colorado River Project, Center for Colorado River Studies, Utah State University, 71 p., https://qcnr.usu.edu/coloradoriver/files/WhitePaper4.pdf.

Subject Keywords

Resource Level Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Colorado River Basin
North Latitude
41.5424°
East Longitude
-104.6569°
South Latitude
30.7901°
West Longitude
-116.2585°

Content

readme.txt

Duration-Severity and Cumulative Deficit analyses performed by Salehabadi, Tarboton et al. (2020; 2022) to examine the severity of sustained droughts that have impact on storage and water supply in the Colorado River Basin.

In this resource, there are two scripts and one Excel file.

     •	"DurationSeverityAnalysis.R" : R code to perform the Duration-Severity analysis and create the plots.
     •	"CumulativeDeficitAnalysis.R" : R code to perform the Cumulative Deficit analysis and create the plots.
     •	"R_InputData.xlsx" : Input file for the scripts comprising two sheets as follows. 
                             1. “AnnualWYTotalNaturalFlow_LF2018” sheet, which contains the annual water year total natural flow at Lees Ferry from U.S. Bureau of Reclamation, (2020), https://www.usbr.gov/lc/region/g4000/NaturalFlow/current.html. 
                             2. “TR_Meko_2017-SK” sheet, which contains annual tree ring reconstructed flow at Lees Ferry from the most skillful model of Meko et al., 2017.
                                    
 
References
Meko, D. M., C. A. Woodhouse and E. R. Bigio, (2017), "Southern California Tree-Ring Study," California Department of Water Resources, https://pdfs.semanticscholar.org/fbaf/487604e2537c8f51037035e59c13113edeeb.pdf. 

Salehabadi, H., D. Tarboton, E. Kuhn, B. Udall, K. Wheeler, D. Rosenberg, S. Goeking and J. C. Schmidt, (2020), "The Future Hydrology of the Colorado River Basin," Center for Colorado River Studies, White Paper 4, Utah State University, https://qcnr.usu.edu/coloradoriver/files/WhitePaper4.pdf. 

Salehabadi, H., D. G. Tarboton, B. Udall, K. G. Wheeler and J. C. Schmidt, (2022), "An assessment of potential severe droughts in the Colorado River Basin," JAWRA Journal of the American Water Resources Association.

U.S. Bureau of Reclamation, (2020), Colorado River Basin Natural Flow and Salt Data, Colorado River Basin Natural Flow Database. Last modified January 10, 2020, https://www.usbr.gov/lc/region/g4000/NaturalFlow/current.html

Related Resources

This resource is described by Salehabadi, H., D. G. Tarboton, B. H. Udall, K. G. Wheeler and J. C. Schmidt, (2022), "An Assessment of Potential Severe Droughts in the Colorado River Basin," JAWRA Journal of the American Water Resources Association, https://doi.org/10.1111/1752-1688.13061.
This resource is described by Salehabadi, H., D. Tarboton, E. Kuhn, B. Udall, K. Wheeler, D. Rosenberg, S. Goeking and J. C. Schmidt, (2020), "The Future Hydrology of the Colorado River Basin," Center for Colorado River Studies, White Paper 4, Utah State University, https://qcnr.usu.edu/coloradoriver/files/WhitePaper4.pdf.
The content of this resource references Meko, D. M., C. A. Woodhouse and E. R. Bigio, (2017), "Southern California Tree-Ring Study," California Department of Water Resources, https://pdfs.semanticscholar.org/fbaf/487604e2537c8f51037035e59c13113edeeb.pdf.
The content of this resource is derived from U.S. Bureau of Reclamation, (2020), Colorado River Basin Natural Flow and Salt Data, Colorado River Basin Natural Flow Database. Last modified January 10, 2020, https://www.usbr.gov/lc/region/g4000/NaturalFlow/current.html.
The content of this resource is derived from Tree Ring Reconstructed Flow at Lees Ferry (Most skillful model of Meko et al., 2017) from https://www.treeflow.info/content/upper-colorado.
This resource belongs to the following collections:
Title Owners Sharing Status My Permission
Data Collection to Supplement the Future Hydrology of the Colorado River Basin Study David Tarboton · Homa Salehabadi  Published Open Access

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
Walton Family Foundation
Catena Foundation

Contributors

People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.

Name Organization Address Phone Author Identifiers
John C. Schmidt Utah State University Utah, US
Eric Kuhn Former General Manager of the Colorado River Water Conservation District Colorado, US
Brad Udall Colorado Water Institute, Colorado State University Colorado, US
David E Rosenberg Utah State University Utah, US
Sara Goeking Utah State University Utah, US
Kevin Wheeler University of Oxford Oxfordshire, GB

How to Cite

Salehabadi, H., D. Tarboton (2022). Duration-Severity and Cumulative Deficit Analyses for Colorado River Streamflow at Lees Ferry, HydroShare, https://doi.org/10.4211/hs.bbe8dffacb07458783b2e6924aa615bb

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

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

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