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Title: Recent Upper Colorado River Streamflow Declines Driven by Loss of Spring Precipitation

Journal Article · · Geophysical Research Letters

Abstract Colorado River streamflow has decreased 19% since 2000. Spring (March‐April‐May) weather strongly influences Upper Colorado River streamflow because it controls not only water input but also when snow melts and how much energy is available for evaporation when soils are wettest. Since 2000, spring precipitation decreased by 14% on average across 26 unregulated headwater basins, but this decrease did not fully account for the reduced streamflow. In drier springs, increases in energy from reduced cloud cover, and lowered surface albedo from earlier snow disappearance, coincided with potential evapotranspiration (PET) increases of up to 10%. Combining spring precipitation decreases with PET increases accounted for 67% of the variance in post‐2000 streamflow deficits. Streamflow deficits were most substantial in lower elevation basins (<2,950 m), where snowmelt occurred earliest, and precipitation declines were largest. Refining seasonal spring precipitation forecasts is imperative for future water availability predictions in this snow‐dominated water resource region.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0024075
OSTI ID:
2429771
Journal Information:
Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 16 Vol. 51; ISSN 0094-8276
Publisher:
American Geophysical Union (AGU)Copyright Statement
Country of Publication:
United States
Language:
English

References (64)

Groundwater depletion during drought threatens future water security of the Colorado River Basin: GROUNDWATER LOSS IN COLORADO RIVER BASIN journal August 2014
Climate coupling between temperature, humidity, precipitation, and cloud cover over the Canadian Prairies journal December 2014
Increasing influence of air temperature on upper Colorado River streamflow: TEMPERATURE AND COLORADO STREAMFLOW journal March 2016
The importance of base flow in sustaining surface water flow in the Upper Colorado River Basin: UCRB BASE FLOW DISCHARGE TO STREAMS journal May 2016
Snowmelt rate dictates streamflow: Snowmelt Rate Dictates Streamflow journal August 2016
The twenty-first century Colorado River hot drought and implications for the future: COLORADO RIVER FLOW LOSS journal March 2017
How much runoff originates as snow in the western United States, and how will that change in the future?: Western U.S. Snowmelt-Derived Runoff journal June 2017
Mitigating the Impacts of Climate Nonstationarity on Seasonal Streamflow Predictability in the U.S. Southwest journal December 2017
Investigating Runoff Efficiency in Upper Colorado River Streamflow Over Past Centuries journal January 2018
Contrasting the hydrologic response due to land cover and climate change in a mountain headwaters system: Contrasting hydrologic response from land cover and climate change journal September 2016
Elevation-dependent responses of streamflow to climate warming: ELEVATION-DEPENDENT RESPONSES OF STREAMFLOW journal May 2014
The relative contributions of alpine and subalpine ecosystems to the water balance of a mountainous, headwater catchment: WATER BALANCE OF A MIXED ALPINE/SUBALPINE HEADWATER CATCHMENT journal June 2015
Factors controlling seasonal groundwater and solute flux from snow-dominated basins journal June 2018
Tree water deficit and dynamic source water partitioning journal December 2020
The response of the North American Monsoon to increased greenhouse gas forcing: NA MONSOON AND GHG WARMING journal February 2013
Physiographically sensitive mapping of climatological temperature and precipitation across the conterminous United States journal December 2008
The ERA5 global reanalysis journal June 2020
The Colorado River water crisis: Its origin and the future journal June 2023
Evapotranspiration models compared on a Sierra Nevada forest ecosystem journal June 2005
An assessment of differences in gridded precipitation datasets in complex terrain journal January 2018
The Effects of Climate Change on the Hydrology and Water Resources of the Colorado River Basin journal January 2004
Elevational Dependence of Projected Hydrologic Changes in the San Francisco Estuary and Watershed journal January 2004
Use of April 1 SWE measurements as estimates of peak seasonal snowpack and total cold-season precipitation journal January 2001
Snow water equivalent interpolation for the Colorado River Basin from snow telemetry (SNOTEL) data: SNOW WATER EQUIVALENT FROM SNOTEL DATA journal August 2003
Relationships between precipitation and surface temperature: PRECIPITATION AND TEMPERATURE RELATIONS journal July 2005
A consistent poleward shift of the storm tracks in simulations of 21st century climate: POLEWARD SHIFT OF THE STORM TRACKS journal September 2005
Warming may create substantial water supply shortages in the Colorado River basin journal January 2007
Northern Annular Mode impact on spring climate in the western United States journal January 2008
Evaluating changes and estimating seasonal precipitation for the Colorado River Basin using a stochastic nonparametric disaggregation technique journal May 2011
Comparing and combining SWE estimates from the SNOW-17 model using PRISM and SWE reconstruction: SNOW MODEL CONFIGURATIONS journal January 2012
Independent effects of temperature and precipitation on modeled runoff in the conterminous United States: EFFECTS OF TEMPERATURE AND PRECIPITATION ON RUNOFF journal November 2011
The influence of reservoirs, climate, land use and hydrologic conditions on loads and chemical quality of dissolved organic carbon in the Colorado River: DISSOLVED ORGANIC CARBON IN THE COLORADO RIVER journal September 2012
On the Causes of Declining Colorado River Streamflows journal September 2018
Quantifying Process Connectivity With Transfer Entropy in Hydrologic Models journal June 2019
The Importance of Interflow to Groundwater Recharge in a Snowmelt‐Dominated Headwater Basin journal June 2019
Efficiency of the Summer Monsoon in Generating Streamflow Within a Snow‐Dominated Headwater Basin of the Colorado River journal December 2020
The Response of the Northern Hemisphere Storm Tracks and Jet Streams to Climate Change in the CMIP3, CMIP5, and CMIP6 Climate Models journal December 2020
Global Daily Actual and Snow‐Free Blue‐Sky Land Surface Albedo Climatology From 20‐Year MODIS Products journal April 2022
Groundwater‐Mediated Memory of Past Climate Controls Water Yield in Snowmelt‐Dominated Catchments journal October 2021
Streamflow Response to Wildfire Differs With Season and Elevation in Adjacent Headwaters of the Lower Colorado River Basin journal March 2022
Tree Rings Reveal Unmatched 2nd Century Drought in the Colorado River Basin journal June 2022
Variability of Snow and Rainfall Partitioning Into Evapotranspiration and Summer Runoff Across Nine Mountainous Catchments journal July 2022
Aridification of Colorado River Basin's Snowpack Regions Has Driven Water Losses Despite Ameliorating Effects of Vegetation journal July 2023
Potential evapotranspiration and continental drying journal June 2016
Weakening of the North American monsoon with global warming journal October 2017
A cloud-free MODIS snow cover dataset for the contiguous United States from 2000 to 2017 journal January 2019
Colorado River flow dwindles as warming-driven loss of reflective snow energizes evaporation journal February 2020
Managing Colorado River risk journal May 2021
Analyzing the Concurrence of Meteorological Droughts and Warm Periods, with Implications for the Determination of Evaporative Regime journal June 2009
Changes in the Timing of Snowmelt and Streamflow in Colorado: A Response to Recent Warming journal May 2010
Shifts in Western North American Snowmelt Runoff Regimes for the Recent Warm Decades journal October 2011
Changes toward Earlier Streamflow Timing across Western North America journal April 2005
Climate-Driven Variability and Trends in Mountain Snowpack in Western North America journal December 2006
Production of Temporally Consistent Gridded Precipitation and Temperature Fields for the Continental United States journal June 2005
Trends and Variability in Snowmelt Runoff in the Western United States journal August 2005
Climate Change Impacts on Streamflow and Subbasin-Scale Hydrology in the Upper Colorado River Basin journal August 2013
GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow report January 2011
Snowmelt Timing Maps Derived from MODIS for North America, Version 2, 2001-2018 collection January 2020
Assessment of Spatiotemporal Variability of Evapotranspiration and Its Governing Factors in a Mountainous Watershed journal January 2019
National Land Cover Database (NLCD) 2019 Products dataset January 2021
A multimodel ensemble approach to assessment of climate change impacts on the hydrology and water resources of the Colorado River basin journal January 2006
Recent Upper Colorado River Streamflow Declines Driven by Loss of Spring Precipitation dataset January 2024
Global Daily Surface Blue-sky Albedo Climatology and Land Cover Climatology Dataset from 20-year MODIS Products (500m) dataset January 2022
NOAA Monthly U.S. Climate Gridded Dataset (NClimGrid) dataset January 2015