:format(webp))
- Location
- Central Otago
- Services
- Civil engineering
- Status
- Completed in 2022
The Brief
Building on a long history of hydrological monitoring, irrigation assessments and modelling within the Manuherekia catchment, Otago, we were engaged to continue to support decision-making for the future of water use in the Manuherekia River and its tributaries.
The project aims to develop future water management regimes for the catchment, benefiting all catchment stakeholders, and to support the decision-making process in the community around environmental values and an expanded irrigation network.
Challenges Identified
As an historic gold mining region, the Manuherekia catchment has dams, water races, storage reservoirs, significant hydraulic infrastructure and a complex water-management structure. We have contributed to monitoring and modelling to support irrigation assessments and the decision-making processes.
What We Did
We use GoldSIM modelling software, which is a probabilistic modelling tool enabling multiple water-use scenarios, decades of historical data and end-user requirements to drive a statistical output. This can be used to answer questions such as how often the river flow would drop below the minimum flow, or what reliability is available to irrigators in an average year.
'%20fill='black'%20stroke='black'%20stroke-width='0.5'/%3e%3crect%20x='8.75'%20y='4.75'%20width='8.5'%20height='0.5'%20transform='rotate(-180%208.75%204.75)'%20fill='black'%20stroke='black'%20stroke-width='0.5'/%3e%3c/svg%3e){kind=small}
:format(webp))
:format(webp))