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Catchment zone in Nattai, Australia containing drinking water. Catchment hydrology is the study of hydrology in drainage basins. Catchments are areas of land where runoff collects to a specific zone. This movement is caused by water moving from areas of high energy to low energy due to the influence of gravity.
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Australia has twelve distinguished NCB Level 1 drainage divisions [1] or thirteen [2] after splitting the South East Coast division at the New South Wales–Victoria border as defined by the Australian Water Resources Assessment 2012, a hydrological survey conducted by the Bureau of Meteorology. [3]
Ten Catchment Management Authorities (CMAs) that cover the whole of Victoria were established in 1994. Their functions include the production of 5-year regional catchment strategies, which is a statement of how each CMA plans to manage its region over the coming 5 years and is developed with the principles of integrated catchment management .
At a size of 715 square kilometres (276 sq mi), Ellen Brook is the largest sub catchment for the Swan–Canning catchment, and one of the main sources of nitrogen and phosphorus for the Swan–Canning river system. The Western Australia Department of Water and Environmental Regulation monitors water quality in Ellen Brook. [3] [1]
Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.
Muirden, Peter: Pen, Luke and Marnie Leybourne (2003) Stream and catchment hydrology in South West Western Australia Perth, W.A. Dept. of Environment. Department of Environment river restoration, 1442-6919 ; report no. RR19 ISBN 1-920849-24-6
Muirden, Peter: Pen, Luke and Marnie Leybourne (2003) Stream and catchment hydrology in South West Western Australia Perth, W.A. Dept. of Environment. Department of Environment river restoration, 1442-6919 ; report no. RR19 ISBN 1-920849-24-6