气候变化领域集成服务门户(CCPortal): Saltwater Intrusion in a Mediterranean Delta Under a Changing Climate

CCPortal

DOI	10.1029/2020JC016437
	Saltwater Intrusion in a Mediterranean Delta Under a Changing Climate
	Bellafiore D.; Ferrarin C.; Maicu F.; Manfè G.; Lorenzetti G.; Umgiesser G.; Zaggia L.; Levinson A.V.
发表日期	2021
ISSN	21699275
卷号	126 期号:2
英文摘要	Saltwater intrusion (SWI) in deltas, estuaries, and other coastal areas represents a pressing problem affecting the sustainability of freshwater resources. Observations and numerical experiments are used to investigate SWI in the surface waters of the Italian's largest river delta (the Po Delta) under low discharge conditions. The model successfully reproduced the observed salinity variations along main river branches and in the delta lagoons and investigated fresh and saltwater dynamics during the entire summer 2017. The numerical model is used to explore the hydrological response of the delta system to climate change. The relative effect of controlling factors on saltwater penetration, such as sea-level rise (SLR), air-sea fluxes, and reduction of river discharge, was evaluated. Results suggest that changes driven by climate and SLR will exacerbate SWI in the surface waters of the Po Delta system. Extent of SWI in the major river branch is projected to increase up to 80% further into the river. Persistence of SWI at the same site is expected to increase 100% longer. Moreover, additional synthetic simulations were used to investigate the sensitivity of SWI to several river discharges and relative SLR values, highlighting the effects of the two factors in the delta. Such results show different combinations of river discharge and relative SLR values that represent possible scenarios, and are important for managing SWI in river-sea systems affected by both climatic and anthropogenic factors such as discharge changes from dam construction, land use, and irrigation. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	climate change; coastal lagoons; Po Delta; river-sea systems; saltwater intrusion
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186461
作者单位	CNR—National Research Council of Italy, ISMAR—Marine Sciences Institute, Venice, Italy; Department of Physics and Astronomy, University of Bologna, Bologna, Italy; Marine Research Institute, Klaipėda University, Klaipėda, Lithuania; CNR—National Research Council of Italy, IGG—Institute of Geosciences and Earth Resources, Padova, Italy; Civil and Coastal Engineering Department, University of Florida, Gainesville, FL, United States
推荐引用方式 GB/T 7714	Bellafiore D.,Ferrarin C.,Maicu F.,et al. Saltwater Intrusion in a Mediterranean Delta Under a Changing Climate[J],2021,126(2).
APA	Bellafiore D..,Ferrarin C..,Maicu F..,Manfè G..,Lorenzetti G..,...&Levinson A.V..(2021).Saltwater Intrusion in a Mediterranean Delta Under a Changing Climate.Journal of Geophysical Research: Oceans,126(2).
MLA	Bellafiore D.,et al."Saltwater Intrusion in a Mediterranean Delta Under a Changing Climate".Journal of Geophysical Research: Oceans 126.2(2021).