Binnie & Partners

a substance that has a pH of more than 7, which is neutral. A base has less free hydrogen ions (H+) than hydroxyl ions (OH-).

sustained flow of a stream in the absence of direct runoff. It includes natural and human-induced streamflows. Natural base flow is sustained largely by groundwater discharges.

an area of land that drains all the streams and rainfall to a common outlet such as the outflow of a reservoir, mouth of a bay, or any point along a stream channel.

Bathymetry is the study of underwater depth of ocean floors (seabed topography), lake floors, or river floors.

Business As Usual

a body of water that is partly surrounded by land and partly surrounded by another body of water.

Billion Cubic Metres/year

the solid rock beneath the soil and superficial rock. A general term for solid rock that lies beneath soil, loose sediments, or other unconsolidated material.

Best Management Practise

Bureau of Meteorology Research Centre

(=BOD5) 5 Day Biochemical Oxygen Demand