Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1088/1748-9326/11/4/044015 |
Energy budget increases reduce mean streamflow more than snow-rain transitions: using integrated modeling to isolate climate change impacts on Rocky Mountain hydrology | |
Foster, Lauren M.1; Bearup, Lindsay A.1; Molotch, Noah P.2,3,4; Brooks, Paul D.5; Maxwell, Reed M.1 | |
通讯作者 | Foster, Lauren M. ; Maxwell, Reed M. |
来源期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2016 |
卷号 | 11期号:4 |
英文摘要 | In snow-dominated mountain regions, a warming climate is expected to alter two drivers of hydrology: (1) decrease the fraction of precipitation falling as snow; and (2) increase surface energy available to drive evapotranspiration. This study uses a novel integrated modeling approach to explicitly separate energy budget increases via warming from precipitation phase transitions from snow to rain in two mountain headwaters transects of the central Rocky Mountains. Both phase transitions and energy increases had significant, though unique, impacts on semi-arid mountain hydrology in our simulations. A complete shift in precipitation from snow to rain reduced streamflow between 11% and 18%, while 4 degrees C of uniform warming reduced streamflow between 19% and 23%, suggesting that changes in energy-driven evaporative loss, between 27% and 29% for these uniform warming scenarios, may be the dominant driver of annual mean streamflow in a warming climate. Phase changes induced a flashier system, making water availability more susceptible to precipitation variability and eliminating the runoff signature characteristic of snowmelt-dominated systems. The impact of a phase change on mean streamflow was reduced as aridity increased from west to east of the continental divide. |
英文关键词 | Rocky Mountains climate change integrated modeling snow to rain transitions energy budget hydrology precipitation phase |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000375746800019 |
WOS关键词 | WATER AVAILABILITY ; SURFACE-WATER ; GROUNDWATER ; SENSITIVITY ; TRENDS ; VARIABILITY ; SIMULATION ; RESOURCES ; BASIN |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/192787 |
作者单位 | 1.Colorado Sch Mines, Dept Geol Engn, Golden, CO 80401 USA; 2.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA; 3.Univ Colorado, Dept Geog, Boulder, CO 80309 USA; 4.CALTECH, Jet Prop Lab, Pasadena, CA USA; 5.Univ Utah, Dept Geol & Geophys, Salt Lake City, UT 84112 USA |
推荐引用方式 GB/T 7714 | Foster, Lauren M.,Bearup, Lindsay A.,Molotch, Noah P.,et al. Energy budget increases reduce mean streamflow more than snow-rain transitions: using integrated modeling to isolate climate change impacts on Rocky Mountain hydrology[J],2016,11(4). |
APA | Foster, Lauren M.,Bearup, Lindsay A.,Molotch, Noah P.,Brooks, Paul D.,&Maxwell, Reed M..(2016).Energy budget increases reduce mean streamflow more than snow-rain transitions: using integrated modeling to isolate climate change impacts on Rocky Mountain hydrology.ENVIRONMENTAL RESEARCH LETTERS,11(4). |
MLA | Foster, Lauren M.,et al."Energy budget increases reduce mean streamflow more than snow-rain transitions: using integrated modeling to isolate climate change impacts on Rocky Mountain hydrology".ENVIRONMENTAL RESEARCH LETTERS 11.4(2016). |
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