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what is the formula of stream frequency. This requires that the streams be similar enough in characteristic that the projections for one could reasonably be expected to reflect the projections of the other. This dimensionless parameter St is known as the Strouhal number and is named after the Czech physicist Vincenc Strouhal 18501922 who first investigated the steady humming or singing of telegraph wires in 1878.
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--Histori cal stream- flow records may be used directly to estimate discharges at various frequencies. Because it is an average frequency dispersion of frequency of exposure will differ between specific schedules and daypart mixes. P Basin perimeter.
So if you see here B has a higher coefficient of variation than A which means that data points of B are more dispersed than A.
As such the formula for calculating frequency when given the time taken to complete a wave cycle is written as. Commonly there are the low and the high classes of stream frequency which relative among the investigated watersheds in a research areaare. Peak flow frequency curve is derived either directly from an equation or by estimating a series of flood peaks which are then analyzed with standard frequency techniques. This step assumes that the user already has information on the peak streamflow data for a USGS gauge station.