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Stream Gaging Station, Carnation, Washington Automated direct measurement of stream discharge is difficult at present. Mathematically, measuring stream discharge is estimating the volumetric flow rate, which is in general a flux integral and thus requires many cross-sectional velocity measurements.
A discharge is a measure of the quantity of any fluid flow over unit time. The quantity may be either volume or mass. Thus the water discharge of a tap (faucet) can be measured with a measuring jug and a stopwatch. Here the discharge might be 1 litre per 15 seconds, equivalent to 67 ml/second or 4 litres/minute. This is an average measure.
In hydrology, a rating curve is a graph of discharge versus stage for a given point on a stream, usually at gauging stations, where the stream discharge is measured across the stream channel with a flow meter. [1] Numerous measurements of stream discharge are made over a range of stream stages.
They wade into the stream to make the measurement or do so from a boat, bridge, or cableway over the stream. For each gaging station, a relation between gage height and streamflow is determined by simultaneous measurements of gage height and streamflow over the natural range of flows (from very low flows to floods).
A stream hydrograph is commonly determining the influence of different hydrologic processes on discharge from the subject catchment. Because the timing, magnitude, and duration of groundwater return flow differs so greatly from that of direct runoff, separating and understanding the influence of these distinct processes is key to analyzing and simulating the likely hydrologic effects of ...
That could mean inviting friends over to check out the holiday light displays in your neighborhood (with mugs of hot chocolate at the ready) instead of hosting a cocktail party.
The Federal Aviation Administration issued temporary flight restrictions prohibiting drone flights over parts of New Jersey following an influx of sightings in recent weeks.. The notice, which ...
Former President Donald Trump and his attorney Todd Blanche exit the courthouse and speak to media after Trump was found guilty following his hush money trial at Manhattan Criminal Court on May 30 ...