DOI: 10.1016/j.gloplacha.2015.08.011
论文题名: Hydrological changes in the U.S. Northeast using the Connecticut River Basin as a case study: Part 2. Projections of the future
作者: Parr D. ; Wang G. ; Ahmed K.F.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2015
卷: 133 起始页码: 167
结束页码: 175
语种: 英语
英文关键词: Droughts
; Evapotranspiration
; Extreme events
; Floods
; Future
; Hydrologic cycle
; Northeast
; VIC
; Warming
Scopus关键词: Balloons
; Climate models
; Drought
; Evapotranspiration
; Floods
; Hydrology
; Runoff
; Soil moisture
; Watersheds
; Extreme events
; Future
; Hydrologic cycles
; Northeast
; VIC
; Warming
; Climate change
; drought stress
; evapotranspiration
; extreme event
; flooding
; global warming
; hydrological change
; hydrological cycle
; hydrological modeling
; precipitation (climatology)
; precipitation intensity
; snowmelt
; Connecticut Basin
; United States
英文摘要: The focus of this study is on whether the recent warming-induced hydrologic changes in the U.S. Northeast will continue in the future (2046-2065) and how future changes of precipitation characteristics may influence other hydrological processes in the Connecticut River Basin (CRB). Our previous study (Parr and Wang 2014) examines the impact of climate changes during 1950-2011 on hydrological processes in the Northeast using the CRB as a case study. Our results showed a clear increase of precipitation intensity and suggested that the basin is entering a wetter regime more subject to meteorological flood conditions than to drought conditions. For this future analysis, three North American Regional Climate Change Assessment Program (NARCCAP) models are used to derive the meteorological forcing for the Variable Infiltration Capacity (VIC) hydrological model, using both present day and the future projected A1B scenario climate. Our future projections indicate wetter winters including significantly greater precipitation, runoff, and soil moisture, decreases to spring runoff, and enhanced ET for all four seasons. We also find a shift toward earlier and faster snow melting and an earlier date of peak discharge. Future precipitation extremes show a decreased amount compared to the early 21st Century, but increased when compared to our entire historic period or the late 20th Century, as well as a consistently increasing mean intensity throughout the past and future. Analyses of extreme hydrologic events reveals changing characteristics of flooding involving increasing duration but decreasing frequency of flood events as well as a reduction of drought risk. © 2015 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84940021665&doi=10.1016%2fj.gloplacha.2015.08.011&partnerID=40&md5=9b95f0ca3a54ee8b04166e42eec6f881
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11499
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Department of Civil and Environmental Engineering, University of Connecticut, Storrs, CT, United States
Recommended Citation:
Parr D.,Wang G.,Ahmed K.F.. Hydrological changes in the U.S. Northeast using the Connecticut River Basin as a case study: Part 2. Projections of the future[J]. Global and Planetary Change,2015-01-01,133.