Glossary

Glossary terms

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Variationsearch for term
The angle at which magnetic north varies from true north
Volume (CFS)search for term
The water volume of a river is a crucial variable for boaters. In order to measure this changing flow, the volume/time unit of 'cubic feet per second' (CFS) is commonly used. CFS indicates the amount of water flowing past any given point along a river in one second.