Typically, a hydrograph is recorded for monitoring of heads in aquifers during non-test conditions ( e . g ., to observe the seasonal fluctuations in an aquifer ).
22.
If the water flow at a particular point, A, in a stream is measured over time with a flow gauge, this information can be used to create a hydrograph.
23.
A record of hydraulic head through time at a well is a hydrograph or, the changes in hydraulic head recorded during the pumping of a well in a test are called drawdown.
24.
As a result, the rising limb of the hydrograph becomes ever quicker as the flood moves downstream, until the flow rate is so great that the depletion by wetting soil becomes insignificant.
25.
Making this assumption can greatly simplify the analysis involved in constructing a unit hydrograph, and it is necessary for the creation of a "'geomorphologic instantaneous unit hydrograph " '.
26.
Making this assumption can greatly simplify the analysis involved in constructing a unit hydrograph, and it is necessary for the creation of a "'geomorphologic instantaneous unit hydrograph " '.
27.
Water levels were monitored by hydrograph, which in more recent times has changed to a digital monitoring system that tracks the water level, electric conductivity, pH, Eh, and temperature.
28.
Of particular importance were Leroy Sherman's unit hydrograph, the infiltration theory of Robert E . Horton, and C . V . Theis's aquifer test / equation describing well hydraulics.
29.
Further North, at Sagaing, the hydrograph shows a 38 % decrease in discharge compared to where the river enters the delta . it also silted up around 278 tons of sand every year.
30.
In 1967, a farming corporation amassed in the Ash Meadows area; by 1968, the hydrograph had begun to register a decline as large capacity wells were drilled and pumped in Ash Meadows.
