2022
DOI: 10.1029/2021ea002059
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Investigation of Springtime Cloud Influence on Regional Climate and Its Implication in Runoff Decline in Upper Colorado River Basin

et al.

Abstract: The subseasonal features of the annual trends of runoff and other associated hydroclimatic variables in the upper Colorado River basin (UCRB) are examined using multiple data sets from in situ observations, reanalysis, and modeling for early spring (February, March, and April), given that about 58% of annual mean runoff decline from 1980 to 2018 stem from its decreases in the three months. Our analysis suggests that the strong annual trends of hydroclimatic variables in March are more statistically significant… Show more

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“…Climate change is thought to be the main driver of this reduction in downstream delivery between reduced snowpack and increased rates of evapotranspiration, therefore weakening the correlation between SWE and streamflow (Milly & Dunne, 2020; Udall & Overpeck, 2017). Annual mean runoff in the basin has declined 58% between 1985 and 2018 (Lin et al, 2022). In the shorter term, releases from upstream reservoirs, primarily Lake Powell, have an impact on the timing and magnitude of flows.…”
Section: Changes To Lake Mead Hydrologymentioning
confidence: 99%
“…Climate change is thought to be the main driver of this reduction in downstream delivery between reduced snowpack and increased rates of evapotranspiration, therefore weakening the correlation between SWE and streamflow (Milly & Dunne, 2020; Udall & Overpeck, 2017). Annual mean runoff in the basin has declined 58% between 1985 and 2018 (Lin et al, 2022). In the shorter term, releases from upstream reservoirs, primarily Lake Powell, have an impact on the timing and magnitude of flows.…”
Section: Changes To Lake Mead Hydrologymentioning
confidence: 99%