scholarly journals Sustainability, governance and water management in New Zealand

2014 ◽  
pp. 167-197
Author(s):  
Trevor Daya-Winterbottom
Keyword(s):  
Water Management ◽  
New Zealand ◽  
Sustainability Governance

Revised hydrogeological model of the hydrothermal system Waiwera (New Zealand)

2021 ◽  
Author(s):  
Andreas Grafe ◽  
Thomas Kempka ◽  
Michael Schneider ◽  
Michael Kühn
Keyword(s):  
Water Management ◽  
New Zealand ◽  
Water Level ◽  
Hot Water ◽  
Hydrogeology Journal ◽  
Natural State ◽  
Geothermal System ◽  
Geological Model ◽  
Species Transport ◽  
Study Region

<p>The geothermal hot water reservoir underlying the coastal township of Waiwera, northern Auckland Region, New Zealand, has been commercially utilized since 1863. The reservoir is complex in nature, as it is controlled by several coupled processes, namely flow, heat transfer and species transport. At the base of the aquifer, geothermal water of around 50°C enters. Meanwhile, freshwater percolates from the west and saltwater penetrates from the sea in the east. Understanding of the system’s dynamics is vital, as decades of unregulated, excessive abstraction resulted in the loss of previously artesian conditions. To protect the reservoir and secure the livelihoods of businesses, a Water Management Plan by The Auckland Regional Council was declared in the 1980s [1]. In attempts to describe the complex dynamics of the reservoir system with the goal of supplementing sustainable decision-making, studies in the past decades have brought forth several predictive models [2]. These models ranged from being purely data driven statistical [3] to fully coupled process simulations [1].<br><br>Our objective was to improve upon previous numerical models by introducing an updated geological model, in which the findings of a recently undertaken field campaign were integrated [4]. A static 2D Model was firstly reconstructed and verified to earlier multivariate regression model results. Furthermore, the model was expanded spatially into the third dimension. In difference to previous models, the influence of basic geologic structures and the sea water level onto the geothermal system are accounted for. Notably, the orientation of dipped horizontal layers as well as major regional faults are implemented from updated field data [4]. Additionally, the model now includes the regional topography extracted from a digital elevation model and further combined with the coastal bathymetry. Parameters relating to the hydrogeological properties of the strata along with the thermophysical properties of water with respect to depth were applied. Lastly, the catchment area and water balance of the study region are considered.<br><br>The simulation results provide new insights on the geothermal reservoir’s natural state. Numerical simulations considering coupled fluid flow as well as heat and species transport have been carried out using the in-house TRANSport Simulation Environment [5], which has been previously verified against different density-driven flow benchmarks [1]. The revised geological model improves the agreement between observations and simulations in view of the timely and spatial development of water level, temperature and species concentrations, and thus enables more reliable predictions required for water management planning.<br><br>[1] Kühn M., Stöfen H. (2005):<br>      Hydrogeology Journal, 13, 606–626,<br>      https://doi.org/10.1007/s10040-004-0377-6<br><br>[2] Kühn M., Altmannsberger C. (2016):<br>      Energy Procedia, 97, 403-410,<br>      https://doi.org/10.1016/j.egypro.2016.10.034<br><br>[3] Kühn M., Schöne T. (2017):<br>      Energy Procedia, 125, 571-579,<br>      https://doi.org/10.1016/j.egypro.2017.08.196<br><br>[4] Präg M., Becker I., Hilgers C., Walter T.R., Kühn M. (2020):<br>      Advances in Geosciences, 54, 165-171,<br>      https://doi.org/10.5194/adgeo-54-165-2020<br><br>[5] Kempka T. (2020):<br>      Adv. Geosci., 54, 67–77,<br>      https://doi.org/10.5194/adgeo-54-67-2020</p>

Numerical simulation of transient groundwater age distributions assisting land and water management in the Middle Wairarapa Valley, New Zealand

2016 ◽  
Vol 52 (12) ◽  
pp. 9430-9451 ◽  
Author(s):  
Michael W. Toews ◽  
Christopher J. Daughney ◽  
Fabien J. Cornaton ◽  
Uwe Morgenstern ◽  
Ryan D. Evison ◽  
...  
Keyword(s):  
Water Management ◽  
Numerical Simulation ◽  
New Zealand ◽  
Groundwater Age ◽  
Land And Water Management

scholarly journals Improving water governance in New Zealand: stakeholder views of catchment management processes and plans

2011 ◽  
Vol 7 (4) ◽  
Author(s):  
Andrew Fenemor ◽  
Diarmuid Neilan ◽  
Will Allen ◽  
Shona Russell
Keyword(s):  
Water Management ◽  
Decision Making ◽  
New Zealand ◽  
Water Resources ◽  
Water Governance ◽  
Scientific Understanding ◽  
Catchment Management ◽  
Stakeholder Views ◽  
Management Processes ◽  
Decision Making Processes

Water governance refers to the institutions, legislation and decision-making processes applied to develop and manage water resources. As pressures on water resources increase there has been a realisation that technocratically-driven water management has not achieved desired sustainability outcomes. Attention must be focused not only on better scientific understanding of water and its values and uses, but also on what constitutes good water governance.

scholarly journals Shaping More Sustainable Communities: a Case Study in Urban Water Management

2021 ◽  
Author(s):  
◽  
Robyn Moore
Keyword(s):  
Water Management ◽  
New Zealand ◽  
Water Systems ◽  
Theory Of Constraints ◽  
Wastewater Management ◽  
Urban Water ◽  
Urban Water Management ◽  
Historical Perspectives ◽  
Sustainable Urban Water Management ◽  
Urban Water Systems

<p>The motivation for this study was to consider how communities might take a more integrated and systematic approach to meeting the challenges of water management in New Zealand, and achieve more sustainable systems. The specific challenges facing a community pursuing sustainable urban water management objectives were examined and solutions sought and tested. Urban water systems, in particular, are under increasing pressure to meet the expectations of communities, with water managers required to articulate sensible management initiatives that secure water supplies and protect water for its intended use, now and in the future. Despite policy and regulation intended to advance outcomes and integrate efforts within the complex area of urban water management, fragmented approaches persist, while a pattern of decline in the quality of New Zealand's water resources remains a cause for concern. Nearly half of urban rates collected in New Zealand apply to water and wastewater management. Thus, this study is concerned with understanding the critical constraints to achieving healthier, more sustainable urban water systems that are affordable for New Zealand communities. The thesis demonstrates the methodology by focusing on Kapiti, a settlement north of Wellington, which has been debating and responding to water quality and security issues for more than a decade. Subsequent to a piloted investigation, a methodological framework was proposed, based on integrating three near complementary perspectives. The Theory of Constraints (TOC) was used with a Stakeholder Typology to identify system stakeholders, capturing and representing their perspectives with Intermediate Objective (IO), Current Reality Tree (CRT) and Prerequisite Trees (PRT), while Causal Loop Diagrams (CLDs) from Systems Dynamics were constructed with some participants to explore and circumvent potential negative outcomes. The combined framework provided a source of deep insights into the challenges, dilemmas, potential solutions and side effects facing resource managers and other stakeholders in an urban water system under pressure from population growth and climatic/topographical conditions. It is possible that the combined theoretical framework can be applied to other resource management cases. The use of the Stakeholder Typology to complement TOC provided a tactical element not routinely evident in systems studies, valuing the experiential and historical perspectives of those who might otherwise be treated as being outside the system, their perspectives marginalised or ignored. The TOC framework offered a logic-based means to identify and invalidate a critical assumption that peak demand would reduce to a level predicted by system managers. Further, the TOC tools were used to focus on and agree the set of conditions necessary to deal with the demand constraint and meet the system goal agreed by the stakeholder participants.</p>

Resource synergies for on-farm water management: a study of New Zealand agribusinesses

2018 ◽  
Vol 25 (4) ◽  
pp. 398-419 ◽  
Author(s):  
Nana Awuah Bortsie-Aryee ◽  
Cle-Anne Gabriel ◽  
Peter Fennessy ◽  
Conor O'Kane ◽  
Sara Walton
Keyword(s):  
Water Management ◽  
New Zealand ◽  
On Farm

scholarly journals Shaping More Sustainable Communities: a Case Study in Urban Water Management

2021 ◽  
Author(s):  
◽  
Robyn Moore
Keyword(s):  
Water Management ◽  
New Zealand ◽  
Water Systems ◽  
Theory Of Constraints ◽  
Wastewater Management ◽  
Urban Water ◽  
Urban Water Management ◽  
Historical Perspectives ◽  
Sustainable Urban Water Management ◽  
Urban Water Systems

<p>The motivation for this study was to consider how communities might take a more integrated and systematic approach to meeting the challenges of water management in New Zealand, and achieve more sustainable systems. The specific challenges facing a community pursuing sustainable urban water management objectives were examined and solutions sought and tested. Urban water systems, in particular, are under increasing pressure to meet the expectations of communities, with water managers required to articulate sensible management initiatives that secure water supplies and protect water for its intended use, now and in the future. Despite policy and regulation intended to advance outcomes and integrate efforts within the complex area of urban water management, fragmented approaches persist, while a pattern of decline in the quality of New Zealand's water resources remains a cause for concern. Nearly half of urban rates collected in New Zealand apply to water and wastewater management. Thus, this study is concerned with understanding the critical constraints to achieving healthier, more sustainable urban water systems that are affordable for New Zealand communities. The thesis demonstrates the methodology by focusing on Kapiti, a settlement north of Wellington, which has been debating and responding to water quality and security issues for more than a decade. Subsequent to a piloted investigation, a methodological framework was proposed, based on integrating three near complementary perspectives. The Theory of Constraints (TOC) was used with a Stakeholder Typology to identify system stakeholders, capturing and representing their perspectives with Intermediate Objective (IO), Current Reality Tree (CRT) and Prerequisite Trees (PRT), while Causal Loop Diagrams (CLDs) from Systems Dynamics were constructed with some participants to explore and circumvent potential negative outcomes. The combined framework provided a source of deep insights into the challenges, dilemmas, potential solutions and side effects facing resource managers and other stakeholders in an urban water system under pressure from population growth and climatic/topographical conditions. It is possible that the combined theoretical framework can be applied to other resource management cases. The use of the Stakeholder Typology to complement TOC provided a tactical element not routinely evident in systems studies, valuing the experiential and historical perspectives of those who might otherwise be treated as being outside the system, their perspectives marginalised or ignored. The TOC framework offered a logic-based means to identify and invalidate a critical assumption that peak demand would reduce to a level predicted by system managers. Further, the TOC tools were used to focus on and agree the set of conditions necessary to deal with the demand constraint and meet the system goal agreed by the stakeholder participants.</p>

Indigenous Research Methodologies in Water Management: Learning From Australia and New Zealand for Application on Kamilaroi Country

2021 ◽  
Author(s):  
Bradley J Moggridge ◽  
Ross M. Thompson ◽  
Peter Radoll
Keyword(s):  
Water Management ◽  
New Zealand ◽  
Cultural Values ◽  
Indigenous Peoples ◽  
Indigenous Research ◽  
Research Methodologies ◽  
Management Learning ◽  
Local Case ◽  
Indigenous Knowledge Systems ◽  
Indigenous Research Methodologies

Abstract Indigenous Research Methodologies (IRMs) for considering cultural values of water are a missing component of water management in Australia. On this dry, flat and ancient continent Traditional Knowledge has been passed on from generation to generation for millennia. The profound knowledge of surface and groundwater has been critical to ensuring the survival of Indigenous peoples in a dry landscape, through finding, re-finding and protecting water. Indigenous Research Methodologies can provide a basis for the exploration of this knowledge in a way that that is culturally appropriate, and which generates a culturally safe space for Indigenous researchers and communities. The development of IRMs has occurred slowly in Australia over the past decades with the intention of shifting the research paradigm away from studying Indigenous peoples through non-Indigenous research methodologies, to partnering in developing methods appropriate to Indigenous knowledge systems. Indigenous Research Methodologies are rooted in Indigenous epistemologies and ontologies and represent a radical departure from more positivist forms of research (Wilson 2001). This allows the Indigenous researcher to derive the terms, questions and priorities of what is being researched, how the community is engaged, and how the research is delivered. Here, a brief overview is provided of Indigenous engagement in water management in Australia and Aotearoa or New Zealand, with reference to local case studies. These more general models are used as the basis for developing an IRM appropriate to the Kamilaroi people in the Gwydir Wetlands of northern NSW, Australia.

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