气候变化领域集成服务门户(CCPortal): Thermal stratification of Portuguese reservoirs: Potential impact of extreme climate scenarios

CCPortal

DOI	10.2166/wcc.2015.071
	Thermal stratification of Portuguese reservoirs: Potential impact of extreme climate scenarios
	Almeida M.C.; Coelho P.S.; Rodrigues A.C.; Diogo P.A.; Maurício R.; Cardoso R.M.; Soares P.M.
发表日期	2015
ISSN	20402244
起始页码	544
结束页码	560
卷号	6 期号:3
英文摘要	Changes in water temperature and stratification dynamics can have a significant effect on hydrodynamics and water quality in reservoirs. Therefore, to assess future climate impacts, projections of three regional climate models for Europe, under the IPCC A1B emission scenario (2081-2100), were used with the CE-QUAL-W2 water quality model to evaluate changes in the thermal regime of 24 Portuguese reservoirs, representing different geographic regions, morphologies, volumes and hydrological regimes. Simulation results were compared with reference simulations for the period 1989-2008 and changes in water temperature and thermal stratification characteristics were evaluated. Future inflow scenarios were estimated from precipitation-runoff non-linear correlations and outflows were estimated considering present water uses, including hydropower, water supply and irrigation. Results suggest a significant increment in the mean water temperature of the reservoirs for the entire water volume and at water surface of 2.3 and 2.5 WC, respectively, associated with a runoff reduction of approximately 23%. Overall, variations in annual stratification patterns are characterized by changes in the mean annual length of stratification anomaly that ranged from -21 to +39 days. Results also show the influence of depth and volume over the reservoir’s temperature anomaly, highlighting the importance of future water uses and operation rule curves optimization for reservoirs. © IWA Publishing 2015.
英文关键词	Climate change; Modeling; Reservoir thermal regime; Water quality
语种	英语
scopus关键词	Climate change; Climate models; Curve fitting; Models; Quality control; Runoff; Temperature; Thermal stratification; Water quality; Water supply; Hydrological regime; Non-linear correlations; Operation rule-curves; Regional climate models; Temperature anomaly; Thermal regimes; Water quality modeling; Water temperatures; Reservoirs (water); climate change; climate effect; climate modeling; hydrodynamics; regional climate; reservoir; stratification; temperature anomaly; thermal regime; water quality; water temperature; Portugal
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/148206
作者单位	Universidade Nova de Lisboa, Caparica, 2829-516, Portugal; Instituto Dom Luiz, Universidade de Lisboa, Lisboa, 1749-016, Portugal
推荐引用方式 GB/T 7714	Almeida M.C.,Coelho P.S.,Rodrigues A.C.,et al. Thermal stratification of Portuguese reservoirs: Potential impact of extreme climate scenarios[J],2015,6(3).
APA	Almeida M.C..,Coelho P.S..,Rodrigues A.C..,Diogo P.A..,Maurício R..,...&Soares P.M..(2015).Thermal stratification of Portuguese reservoirs: Potential impact of extreme climate scenarios.Journal of Water and Climate Change,6(3).
MLA	Almeida M.C.,et al."Thermal stratification of Portuguese reservoirs: Potential impact of extreme climate scenarios".Journal of Water and Climate Change 6.3(2015).