SIERRA-NEVADA
; WATER-RESOURCES
; SENSITIVITY
; ENERGY
; MODEL
; SIMULATION
; SCENARIOS
; BALANCE
; RUNOFF
; COVER
WOS学科分类:
Environmental Sciences
WOS研究方向:
Environmental Sciences & Ecology
英文摘要:
A point-location-based analysis of future climate change impacts on snow accumulation and melting processes was conducted over three study watersheds in Northern California during a 90-year future period by means of snow regime projections. The snow regime projections were obtained by means of a physically-based snow model with dynamically downscaled future climate projections. Then, atmospheric and snow-related variables, and their interrelations during the 21st century were investigated to reveal future climate change impacts on snow accumulation and melting processes. The analysis shows large reductions in snow water equivalent (SWE), snowfall to precipitation (S/P) ratio, and snowmelt through the 21st century. Timing of the peak of the SWE and snowmelt will also change in the future. Meanwhile, the analysis in this study shows that air temperature rise will affect, but will not dominate the future change in snowmelt over the study watersheds. This result implies the importance of considering atmospheric variables other than air temperature, such as precipitation, shortwave radiation, relative humidity, and wind speed even if these variables will not clearly change during the 21st century. (C) 2019 Elsevier B.V. All rights reserved.
1.Kumamoto Univ, Fac Adv Sci & Technol, 2-39-1 Kurokami, Kumamoto 8608555, Japan 2.Univ Wyoming, Civil & Architectural Engn, Laramie, WY 82071 USA 3.Univ Calif Davis, Dept Civil & Environm Engn, J Amorocho Hydraul Lab, One Shields Ave, Davis, CA 95616 USA 4.Korea Water Resources Corp, Korea Inst Water & Environm, Daejeon 305730, South Korea 5.Univ Calif Davis, Dept Civil & Environm Engn, Hydrol Res Lab, One Shields Ave, Davis, CA 95616 USA 6.Calif Dept Water Resources, Div Flood Management, 3310 Camino Ave,Rm 200, Sacramento, CA 95821 USA
Recommended Citation:
Ishida, K.,Ohara, N.,Ercan, A.,et al. Impacts of climate change on snow accumulation and melting processes over mountainous regions in Northern California during the 21st century[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019-01-01,685:104-115