The Paddock to Reef Modelling (P2R) and Monitoring Program reports on progress towards meeting the Reef Water Quality Protection Plan (Reef Plan) targets. The targets set out in the Reef Plan are designed to improve water quality entering the Great Barrier Reef (GBR) through improving land management practices. Catchment modelling is being used as one line of evidence to report on progress towa...

Every river gets polluted as it moves from its source to the end. Hence, quality of water requires investigation for usability. In present work 40.69 km stretch Tungabhadra in Davangere district Karnataka, India was chosen testing quality. The samples’ physical, chemical and biological characteristics were tested eight sites each month during pre-monsoon, monsoon post-monsoon seasons 2017 2019....

Water quality models combine fluid-flow relations with biological regressions, all on a spatially complex domain. For many applications, a computationally simple lumped parameter model with regressed parameters suffices, while for others where a more fundamental approach may be worth the extra development and computational effort. A simple example modelling the transport of salt in interconnect...

Realistic estimates of daily streamflow and water temperature are required for effective management of water resources (e.g. for electricity and drinking water production) and freshwater ecosystems. Although hydrological and process-based water temperature modelling approaches have been successfully applied to small catchments and short time periods, much less work has been done at large spatia...