| DOI: | 10.1002/2016GL069690
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| 论文题名: | Snowmelt rate dictates streamflow |
| 作者: | Barnhart T.B.; Molotch N.P.; Livneh B.; Harpold A.A.; Knowles J.F.; Schneider D.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8787
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| EISSN: | 1944-8518
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| 出版年: | 2016
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| 卷: | 43, 期:15 | | 起始页码: | 8006
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| 结束页码: | 8016
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| 语种: | 英语
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| 英文关键词: | Budyko
; hydroclimatology
; modeling
; snowmelt
; streamflow
; water
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| Scopus关键词: | Efficiency
; Evapotranspiration
; Models
; Solvents
; Stream flow
; Water
; Budyko
; Hydro climatologies
; Possible mechanisms
; Potential evapotranspiration
; Snowmelt
; Streamflow generations
; Variable infiltration capacity models
; Western United States
; Snow melting systems
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| 英文摘要: | Declining mountain snowpack and earlier snowmelt across the western United States has implications for downstream communities. We present a possible mechanism linking snowmelt rate and streamflow generation using a gridded implementation of the Budyko framework. We computed an ensemble of Budyko streamflow anomalies (BSAs) using Variable Infiltration Capacity model-simulated evapotranspiration, potential evapotranspiration, and estimated precipitation at 1/16° resolution from 1950 to 2013. BSA was correlated with simulated baseflow efficiency (r2 = 0.64) and simulated snowmelt rate (r2 = 0.42). The strong correlation between snowmelt rate and baseflow efficiency (r2 = 0.73) links these relationships and supports a possible streamflow generation mechanism wherein greater snowmelt rates increase subsurface flow. Rapid snowmelt may thus bring the soil to field capacity, facilitating below-root zone percolation, streamflow, and a positive BSA. Previous works have shown that future increases in regional air temperature may lead to earlier, slower snowmelt and hence decreased streamflow production via the mechanism proposed by this work. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983530468&doi=10.1002%2f2016GL069690&partnerID=40&md5=16259d8c3819a145eb2ee5c97dca2aa4
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9750
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Geography, University of Colorado Boulder, Boulder, CO, United States
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| Recommended Citation: | |
Barnhart T.B.,Molotch N.P.,Livneh B.,et al. Snowmelt rate dictates streamflow[J]. Geophysical Research Letters,2016-01-01,43(15).
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