What is negative base flow in hydrograph in hydrology?
Biological oxygen demand(BOD): Biological oxygen demand is one of the clinical procedures which is used to determine the amount of dissolved oxygen which is needed by aerobic biological organisms in a body of water to director organic material is present in given water samples and certain temperaturRead more
Biological oxygen demand(BOD):
Biological oxygen demand is one of the clinical procedures which is used to determine the amount of dissolved oxygen which is needed by aerobic biological organisms in a body of water to director organic material is present in given water samples and certain temperature for a specific period.
Biological oxygen demand and chemical oxygen demand are different processes.
To assess the quantity of surface water for the biological oxygen demand test and other purposes then it is important to understand the characteristics of dissolved oxygen content in water and wastewater.
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AdityaBhandakkar
In simple words, base flow is the flow of water under the ground between the precipitation and percolation. If the precipitation and percolation act on base flow it is called a negative base flow. In this case, the base flow is below the line of the depletion curve. Negative base-flow is also calledRead more
In simple words, base flow is the flow of water under the ground between the precipitation and percolation. If the precipitation and percolation act on base flow it is called a negative base flow. In this case, the base flow is below the line of the depletion curve. Negative base-flow is also called as bank storage.
It is also called as a draught flow or groundwater recession. The best floor is also called a fair-weather flow.
In civil engineering point of view, flow is very important for human population sustainability and balance in ecosystems.
Baseflow in the soil are depending upon the following factors:
Evapotranspiration is the main cause to reduce the base flow.
In negative base flow, the seepage of groundwater to the surface water for a very short period is reversed. The depletion curve is the recession curve, which is produced after the effect of groundwater seepage. And when the base flow is below the line of the depletion curve called a negative base flow.
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