Time of Drawdown (t1) in Groundwater Hydrology Formulas

Time of Drawdown (t1) is the total period for the difference between the pumping water level and the static (non-pumping) water level. And is denoted by t₁. Time of Drawdown (t1) is usually measured using the Second for Time. Note that the value of Time of Drawdown (t1) is always negative.

Groundwater Hydrology formulas that make use of Time of Drawdown (t1)

fxDrawdown at Time Interval 't1'Go

fxDrawdown at Time Interval 't2'Go

FAQ

What is the Time of Drawdown (t1)?

Time of Drawdown (t1) is the total period for the difference between the pumping water level and the static (non-pumping) water level. Time of Drawdown (t1) is usually measured using the Second for Time. Note that the value of Time of Drawdown (t1) is always negative.

Can the Time of Drawdown (t1) be negative?

Yes, the Time of Drawdown (t1), measured in Time can be negative.

What unit is used to measure Time of Drawdown (t1)?

Time of Drawdown (t1) is usually measured using the Second[s] for Time. Millisecond[s], Microsecond[s], Nanosecond[s] are the few other units in which Time of Drawdown (t1) can be measured.

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