OBSERVED STREAMFLOW GENERATION CHANGES: BETTER UNDERSTANDING AND MODELLING

Grant number: LP180100796 | Funding period: 2020 - 2023

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Abstract

This Project aims to investigate drivers and triggers of variable streamflow response during and after drought and develop modelling strategies and model structures more robust to changing streamflow response. In many catchments during the Millennium Drought, streamflow generation was less than expected and hydrologic models performed poorly. After the drought, streamflow generation is yet to recover in some catchments. This Project expects to generate new knowledge about variable streamflow response to drought and develop strategies and models to robustly simulate runoff during and after changed conditions, which should provide significant benefit via better understanding and modelling of s..

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Related publications (7)

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Symptoms of Performance Degradation During Multi-Annual Drought: A Large-Sample, Multi-Model Study

L Trotter, M Saft, MC Peel, KJA Fowler

2023-02-01

Hydrologic models are essential tools to understand and plan for the effect of changing climates; however, they underperform in tr..

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Explaining changes in rainfall-runoff relationships during and after Australia's Millennium Drought: a community perspective

Keirnan Fowler, Murray Peel, Margarita Saft, Tim J Peterson, Andrew Western, Lawrence Band, Cuan Petheram, Sandra Dharmadi, Kim Seong Tan, Lu Zhang, Patrick Lane, Anthony Kiem, Lucy Marshall, Anne Griebel, Belinda E Medlyn, Dongryeol Ryu, Giancarlo Bonotto, Conrad Wasko, Anna Ukkola, Clare Stephens

2022-12-06

The Millennium Drought lasted more than a decade and is notable for causing persistent shifts in the relationship between rainfall..

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Modular Assessment of Rainfall-Runoff Models Toolbox (MARRMoT) v2.1: an object-oriented implementation of 47 established hydrological models for improved speed and readability

Luca Trotter, Wouter JM Knoben, Keirnan JA Fowler, Margarita Saft, Murray C Peel

2022-08-26

The Modular Assessment of Rainfall–Runoff Models Toolbox (MARRMoT) is a flexible modelling framework reproducing the behaviour of ..

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Hydrological Shifts Threaten Water Resources

Keirnan Fowler, Murray Peel, Margarita Saft, Rory Nathan, Avril Horne, Robert Wilby, Connor McCutcheon, Tim Peterson

2022-08-01

Recent shifts in the hydrological behavior of natural watersheds suggest acute challenges for water planning under climate change...

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Identifying Causal Interactions Between Groundwater and Streamflow Using Convergent Cross-Mapping

Giancarlo Bonotto, Tim J Peterson, Keirnan Fowler, Andrew W Western

2022-08-01

Groundwater (GW) is commonly conceptualized as causally linked to streamflow (SF). However, confirming where and how it occurs is ..

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Towards more realistic runoff projections by removing limits on simulated soil moisture deficit

Keirnan JA Fowler, Gemma Coxon, Jim E Freer, Wouter JM Knoben, Murray C Peel, Thorsten Wagener, Andrew W Western, Ross A Woods, Lu Zhang

2021-06-28

Rainfall-runoff models based on conceptual “buckets” are frequently used in climate change impact studies to provide runoff projec..

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Watersheds may not recover from drought

Tim J Peterson, M Saft, MC Peel, A John

2021-05-14

The Millennium Drought (southeastern Australia) provided a natural experiment to challenge the assumption that watershed streamflo..

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