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Modeling surface water-groundwater interaction in New Zealand: Model development and application

2016; Wiley; Volume: 31; Issue: 4 Linguagem: Inglês

10.1002/hyp.11075

1099-1085

Jing Yang, Hilary McMillan, Christian Zammit,

Hydrological Forecasting Using AI

Hydrological ProcessesVolume 31, Issue 4 p. 925-934 RESEARCH ARTICLE Modeling surface water–groundwater interaction in New Zealand: Model development and application Jing Yang, Corresponding Author Jing Yang jing.yang@niwa.co.nz National Institute of Water and Atmospheric Research, New Zealand Correspondence Jing Yang, National Institute of Water and Atmospheric Research, PO Box 8602, Christchurch, New Zealand. Email: jing.yang@niwa.co.nzSearch for more papers by this authorHilary McMillan, Hilary McMillan National Institute of Water and Atmospheric Research, New ZealandSearch for more papers by this authorChristian Zammit, Christian Zammit National Institute of Water and Atmospheric Research, New ZealandSearch for more papers by this author Jing Yang, Corresponding Author Jing Yang jing.yang@niwa.co.nz National Institute of Water and Atmospheric Research, New Zealand Correspondence Jing Yang, National Institute of Water and Atmospheric Research, PO Box 8602, Christchurch, New Zealand. Email: jing.yang@niwa.co.nzSearch for more papers by this authorHilary McMillan, Hilary McMillan National Institute of Water and Atmospheric Research, New ZealandSearch for more papers by this authorChristian Zammit, Christian Zammit National Institute of Water and Atmospheric Research, New ZealandSearch for more papers by this author First published: 07 November 2016 https://doi.org/10.1002/hyp.11075Citations: 12Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Most rivers worldwide have a strong interaction with groundwater when they leave the mountains and flow over alluvial plains before flowing into the seas or disappearing in the deserts, and in New Zealand, typically, rivers lose water to the groundwater in the upper plains and generally gain water from the groundwater in the lower plains. Aiming at simulating surface water–groundwater interaction nationally in New Zealand, we developed a conceptual groundwater module for the national hydrologic model TopNet to simulate surface water–groundwater interaction, groundwater flow, and intercatchment groundwater flow. The developed model was applied to the Pareora catchment in South Island of New Zealand, where there are concurrent spot gauged flows. Results show that the model simulations not only fit quite well to flow measurement but also to concurrent spot gauged flows, and compared to the original TopNet, it has a significant improvement in the low flows. Sensitivity analysis shows river flow is sensitive to the river losing/gaining rate instead of groundwater characteristic, while groundwater storage is sensitive to both river losing/gaining rate and groundwater characteristic. This indicates our conceptual approach is promising for nationwide modeling without the large amount of geology and aquifer data typically required by physically-based modeling approaches. Citing Literature Volume31, Issue415 February 2017Pages 925-934 RelatedInformation