Abstract: A sampling and analysis procedure for the tracer measurement of gas transfer is presented. Dissolved propane was used as a gas‐transfer tracer. The propane samples were analyzed by a headspace gas chromatographic technique ...

Abstract: An indexing relationship, used to index and directly compare measurements, is developed for liquid phase‐controlled gas transfer in self‐aerated flows from theoretical considerations. The indexing relation is shown to ...

Abstract: A methodology to assess the impact of a hydropower facility on downstream water quality is described. Negative impacts can result from the substitution of discharges aerated over a spillway with minimally aerated turbine ...