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  Services » Publications » Technical reports - by year » tr201242

Numerical groundwater flow and transport modelling of the western Lake Taupō catchment

On this page: abstract, table of contents

Report: TR 2012/42

Author: M Toews, M Gusyev (Institute of Geological and Nuclear Sciences Ltd)

Abstract

The goal of this study was to develop a steady-state groundwater flow and transient contaminant transport model to aid with nitrate management in the western Lake Taupō catchment.

This study is a continuation of the 2011 study by Gusyev et al. It provides a detailed description of the constructed model for the western Lake Taupō catchment.

Numerical groundwater flow and transport modelling of the western Lake Taupō catchment (2mb)

Table of contents

1 Introduction 1
2 Model design 1
2.1 Conceptual model 1
2.2 Model grid 2
2.3 Hydrogeological properties 2
2.4 Boundary conditions 2
2.4.1 No flow 3
2.4.2 Groundwater recharge 3
2.4.3 Surface water features 3
2.4.4 Nitrate loading 3
 2.5 Calibration targets 4
 2.5.1 Stream flow 4
2.5.2 Groundwater levels 4
2.5.3 Mean residence time 4
3 Model calibration 5
3.1 Model run setting 5
3.2 Calibration to stream flow 5
3.3 Calibration to grounwater levels 6
3.4 Calibration to mean residence time 6
3.5 Sensitivity and uncertainty 6
4 Model predictions 7
4.1 Groundwater flow results 7
4.2 Nitrate transport results 7
5 Summary and recommendations 7
6 Acknowledgements 9
7 References 9
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