Yukon Geological Survey publication metadata (English, HTML)

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2026-08-26

Assessing the impact of a mining project requires knowledge of the water balance. Study of stream flow variation over the open water season can be readily accomplished with a variety of conventional methods, but understanding the behaviour of streams in winter low flow is hampered by uncertainty. Knowledge of absolute low flow can be vital in anticipating environmental effects of mining projects and describing the possible effects of climate change. Streamflow has been measured using variations of dye dilution and tracers of all kinds for many years, but these were always cumbersome. Recently, advances in instrumentation have allowed a variation of the salt dilution method to be a practical method for streamflow measurement. Geoff Kite of the National Hydrology Research Institute (NHRI) has experimented with a streamflow measurement technique using injection of a salt slug and calculation of flow based on the conservation of mass. The method is described in re 'Measuring glacier outflows using a computerized conductivity system', Journal of Glaciology, Vol. 40, No. 134, 1994 (attached as Appendix A), and 'Computerized Streamflow Measurement Using Slug Injection', Hydrological…

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