Occasionally, someone from a rowing club upriver will wander by, having beached at a wet-weather discharge station near the Metro-North rail yards.
Wet-weather discharges contribute to anthropogenic micropollutant loads entering the aquatic environment.
Thousands of wet-weather discharges exist in Swiss sewer systems, and we do not have the capacity to monitor them all.
The POLFLOW model was calibrated and validated by dividing the weather and discharge data into two: 1990 1995 and 1996 2000.
Generating continuous long-term time series will require sustained effort in a remote near-summit environment that is characterized by extreme weather and discharge of high-temperature, low-pH hydrothermal fluids.
Pollution, both in the past and currently, is shown to be episodic rather than continuous and relationships of high pollution levels to antecedent weather, season, discharge and hydrograph position are explored.
The study area is principally consisting of alumino silicates, which undertake weathering and discharge silica into the solution.
In dry weather, this discharges 30 million gallons (136,000 m3) of treated water each day, more than doubling the flow in the river.
The 1970 2000 period was used because it had many available observations of weather and river discharge, and the spatio-temporal variability in this period is very similar to the current situation.
The embankment slopes that are generally not as well compacted have a much higher air and water permeability and this can lead to increased pyrite weathering and sulfate discharge.
