The impacts on daily streamflow at each are estimated as the total of two impacts: direct open-cut mine footprints and baseflow impact. Section 220.127.116.11.4 describes how the open-cut mine footprints are obtained. Their is the streamflow detained in the mine footprint areas, simulated from the Australian Water Resource Assessment Landscape model (AWRA-L) daily streamflow multiplied by the ratio of the ACRD area to each node’s contribution area. This means that there will be no impact on streamflow if there is no ACRD, and the reduction in streamflow will be 100% if the ACRD area covers 100% of the node’s contribution area.
The hydrological changes to baseflow are estimated using the MODFLOW model, which is described in detail in Section 18.104.22.168 of companion product 2.6.2 for the (). The MODFLOW model estimates monthly baseflow for each model node under the and . The difference between CRDP and baseline simulations is taken as the monthly hydrological change in baseflow, which is then equally partitioned to obtain the daily changes.
Product Finalisation date
- 22.214.171.124 Methods
- 126.96.36.199 Review of existing models
- 188.8.131.52 Model development
- 184.108.40.206 Calibration
- 220.127.116.11 Uncertainty
- 18.104.22.168 Prediction
- Currency of scientific results
- Contributors to the Technical Programme
- About this technical product