气候变化领域集成服务门户(CCPortal): Three-Dimensional Numerical Modeling of Cryo-Hydrogeological Processes in a River-Talik System in a Continuous Permafrost Environment

CCPortal

DOI	10.1029/2021WR031630
	Three-Dimensional Numerical Modeling of Cryo-Hydrogeological Processes in a River-Talik System in a Continuous Permafrost Environment
	Liu, Weibo; Fortier, Richard; Molson, John; Lemieux, Jean-Michel
通讯作者	Liu, WB (通讯作者)，Univ Laval, Dept Geol & Genie Geol, Quebec City, PQ, Canada. ; Liu, WB (通讯作者)，Univ Laval, Ctr Etud Nord, Quebec City, PQ, Canada. ; Liu, WB (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou, Peoples R China.
发表日期	2022
ISSN	0043-1397
EISSN	1944-7973
卷号	58 期号:3
英文摘要	In continuous permafrost environments, understanding complex river-talik system dynamics is fundamental for the sustainable use of talik aquifers as a source of drinking water in remote communities. A conceptual model of a river-talik system was previously developed based on field investigations in the floodplain of the Kuuguluk River at Salluit, Nunavik (Quebec), Canada, including geophysical surveys and monitoring of hydraulic heads and riverbed temperatures. This conceptual model is here used to develop a 3D numerical model for simulating the governing cryo-hydrogeological processes and dynamic system behavior. The numerical simulations, supported by the field data, show that the width and thickness of the river talik is highly correlated to the width of the overlying riverbed. In summer, the river talik is hydraulically connected to the riverbed, and groundwater from the talik aquifer is contributing to river baseflow. In winter, when the river and riverbed freeze, the river talik becomes hydraulically isolated from the riverbed. Under such conditions, the river talik acts as a tube-like conduit system which focusses groundwater flow. Increasing hydraulic heads at constrictions in the talik can be sufficient to fracture the frozen riverbed and ice cover, leading to groundwater overflows and icing formation. This study presents an integrated field and modeling approach for assessing the potential of talik aquifers as reliable sources of drinking water in northern communities.
关键词	GROUNDWATER-FLOW HEAT-TRANSPORT THAW BENEATH IMPACTS
英文关键词	three-dimensional numerical modeling; cryo-hydrogeological processes; river talik; continuous permafrost; water resources
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS类目	Environmental Sciences ; Limnology ; Water Resources
WOS记录号	WOS:000775574200001
来源期刊	WATER RESOURCES RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254148
作者单位	[Liu, Weibo; Fortier, Richard; Molson, John; Lemieux, Jean-Michel] Univ Laval, Dept Geol & Genie Geol, Quebec City, PQ, Canada; [Liu, Weibo; Fortier, Richard; Molson, John; Lemieux, Jean-Michel] Univ Laval, Ctr Etud Nord, Quebec City, PQ, Canada; [Liu, Weibo] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Liu, Weibo,Fortier, Richard,Molson, John,et al. Three-Dimensional Numerical Modeling of Cryo-Hydrogeological Processes in a River-Talik System in a Continuous Permafrost Environment[J]. 中国科学院西北生态环境资源研究院,2022,58(3).
APA	Liu, Weibo,Fortier, Richard,Molson, John,&Lemieux, Jean-Michel.(2022).Three-Dimensional Numerical Modeling of Cryo-Hydrogeological Processes in a River-Talik System in a Continuous Permafrost Environment.WATER RESOURCES RESEARCH,58(3).
MLA	Liu, Weibo,et al."Three-Dimensional Numerical Modeling of Cryo-Hydrogeological Processes in a River-Talik System in a Continuous Permafrost Environment".WATER RESOURCES RESEARCH 58.3(2022).