Modelling of Groundwater–Surface Water Interaction Applying the Hyporheic Flux Model

Manuel Diaz,Maria Grodzka-Łukaszewska,Grzegorz Sinicyn

doi:10.3390/w12123303

Manuel Diaz, Maria Grodzka-Łukaszewska + Show 1 more

Open Access

https://doi.org/10.3390/w12123303

Copy DOI

Journal: Water	Publication Date: Nov 24, 2020
Citations: 8	License type: CC BY 4.0

Affiliation: Université Côte d'Azur, Warsaw University of Technology

Abstract

The objective of the present paper is to develop a methodology that could allow the representation of the analytical hyporheic flux equation model (AHF) in a numerical model done in MODFLOW. Therefore, the scope of the research is to show the viability of the methodology suggested in a real case (Biebrza river, Poland, Europe). Considering that the model requires extensive manipulation in the creation of the packages, a test phase through the seepage package of MODFLOW is carried out with the aim of representing the river package of MODFLOW. FloPy is the tool chosen to develop this implementation due to the versatility of manipulating the packages available in MODFLOW through coding. The obtained results showed a correct implementation of the AHF model using the example of the Biebrza River. The results obtained will enable a better understanding regarding the modelling of the interaction between the river and the aquifer, considering streams with specific geometries where the depth is dimensionally higher than the width.

Highlights

Groundwater has been one of the most important natural resources, which have many dimensions for being evaluated in society such as residential, agricultural, and industrial water supply [1]
The results presented of d increases, the analytical hyporheic flux equation model (AHF) model tends to be closer to the Modular Three-Dimensional Finite-Difference Groundwater Flow (MODFLOW) approximation using the river in show An thatimportant ds produces significative at the flow. constant
The implementation of the seepage package instead of the river package (RIV) shows some limitations of the algorithm related to the hydraulic properties and the geometry

Summary

Introduction

Groundwater has been one of the most important natural resources, which have many dimensions for being evaluated in society such as residential, agricultural, and industrial water supply [1]. A large quantity of research has been developed for studying the groundwater and surface water interaction [2,3,4]. Modelling groundwater has significant challenges, and it involves a large number of variables in its analysis such as clogging, design, optimisation, feasibility, water quality, geotechnical processes, groundwater management, recovery efficiency, saltwater intrusion, and residence time [5]. This research is focused on one area of the groundwater management that is the interaction between surface water and groundwater. MODFLOW (United States Geological Survey, Reston, VA, USA) is a hydrologic model that simulates and makes predictions of groundwater conditions and groundwater surface-water interactions [6]. The principal challenge of modelling the interaction with the river–aquifer or the flow in the unsaturated zone would be the higher numerical instability, the high costs of modelling, and the computational efficiency. It is crucial to understand that the groundwater velocity beneath and in the vicinity of a riverbed is essential when applying the model to estimate the river-aquifer interaction accurately [7]

Objectives

Methods

Results

Conclusion