Flood mitigation

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Bird's eye aerial view of Cotter Dam wall & Cotter reservoir, a supply source of potable water for the city of Canberra in the Australian Capital Territory, Australia. Low water levels due to drought

Increasing water demand in the near future will need to be met by an increased water storage capacity. Conventionally, such storage is achieved with surface reservoirs, even though they suffer from evaporation losses, sediment accumulation, high costs for construction and maintenance and large land requirement.

As aquifers offer a large chance for underground storage, managed aquifer recharge will be increasingly appealing, because it is not affected by evaporation and also because economic aspects are favorable. Managed aquifer recharge can also be applied to harvest and store surplus flows in humid environments, to protect downstream flood prone areas.