Articles | Volume 23, issue 2
https://doi.org/10.5194/hess-23-637-2019
https://doi.org/10.5194/hess-23-637-2019
Research article
 | 
04 Feb 2019
Research article |  | 04 Feb 2019

Capturing soil-water and groundwater interactions with an iterative feedback coupling scheme: new HYDRUS package for MODFLOW

Jicai Zeng, Jinzhong Yang, Yuanyuan Zha, and Liangsheng Shi

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Latest update: 02 Mar 2024
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Short summary
Accurately capturing the soil-water–groundwater interaction is vital for all disciplines related to subsurface flow but is difficult when undergoing significant nonlinearity in the modeling system. A new soil-water flow package is developed to solve the switching-form Richards’ equation. A multi-scale water balance analysis joins unsaturated–saturated models at separated scales. The whole system is solved efficiently with an iterative feedback coupling scheme.