气候变化领域集成服务门户(CCPortal): Hydroclimatic variability and change in the Chesapeake Bay watershed

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DOI	10.2166/wcc.2016.008
	Hydroclimatic variability and change in the Chesapeake Bay watershed
	Seong C.; Sridhar V.
发表日期	2017
ISSN	20402244
起始页码	254
结束页码	273
卷号	8 期号:2
英文摘要	The Chesapeake Bay (CB) Watershed is undergoing changes in climate, hydrology, and land use. The assessment of hydroclimatic impacts is important for both water quantity and quality management. This study evaluated the hydroclimatic changes using the Coupled Model Intercomparison Project 5 (CMIP5) data which provided statistically downscaled daily precipitation and temperature. An increase of 3.0 to 5.2W C in temperature was projected between 2070 and 2099 when compared with the baseline period of 1970–1999. However, precipitation projections showed a modest increase with an average of 5.2 and 8.4% between 2070 and 2099. The northern part of the CB Watershed was expected to be wetter and warmer than the southern region. The average changes in flow were projected between 12 and 6% and 22 to 5% between 2070 and 2099, respectively, under two scenarios. Minimum changes in winter and highest flow reduction in fall with a high degree of variability among the ensemble members was expected. Greater decrease in flows in the northern region of the CB Watershed was projected. Despite the wetter future projections at the end of the century and uncertainties in our evapotranspiration (ET) estimation, reductions in the land surface runoff partly were attributed to increased ET. © IWA Publishing 2017.
英文关键词	Chesapeake Bay Watershed; Climate change; CMIP5; Hydrological model
语种	英语
scopus关键词	Climate models; Hydrology; Land use; Quality management; Watersheds; Chesapeake Bay watershed; CMIP5; Coupled Model Intercomparison Project; Daily precipitations; Future projections; High degree of variability; Hydroclimatic variability; Hydrological modeling; Climate change; climate change; climate variation; CMIP; evapotranspiration; hydrological modeling; precipitation (climatology); runoff; watershed; Chesapeake Bay; United States
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148114
作者单位	Department of Biological Systems Engineering, Virginia Tech, 155 Ag Quad Lane, Blacksburg, VA 24061, United States
推荐引用方式 GB/T 7714	Seong C.,Sridhar V.. Hydroclimatic variability and change in the Chesapeake Bay watershed[J],2017,8(2).
APA	Seong C.,&Sridhar V..(2017).Hydroclimatic variability and change in the Chesapeake Bay watershed.Journal of Water and Climate Change,8(2).
MLA	Seong C.,et al."Hydroclimatic variability and change in the Chesapeake Bay watershed".Journal of Water and Climate Change 8.2(2017).