Transmissivity Derived from the Time-Drawdown Graphs Calculator

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Engineering	Civil ↺
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Groundwater-Hydrology	Time-Drawdown Analysis ↺

✖Pumping Rate is the actual volumetric pumping rate.ⓘ Pumping Rate [Q]			+10% -10%
✖Drawdown Across One Log Cycle from Time-drawdown graphs.ⓘ Drawdown Across One Log Cycle [Δs]			+10% -10%

✖Transmissivity is the rate at which groundwater flows horizontally through an aquifer.ⓘ Transmissivity Derived from the Time-Drawdown Graphs [T]

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Transmissivity Derived from the Time-Drawdown Graphs

Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

Mithila Muthamma PA has created this Calculator and 400+ more calculators!

Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

Chandana P Dev has verified this Calculator and 400+ more calculators!

< 11 Other formulas that you can solve using the same Inputs

Equation for Pumping Rate when Transmissivity derived from the Time-Drawdown Graphs is Given

Pumping Rate=(Transmissivity*4*pi*Drawdown Across One Log Cycle)/Pumping Rate GO

Storage Coefficient From Theis Equation of Transmissivity

Storage Coefficient=(Pumping Rate*Well Function of u)/Transmissivity*4*pi GO

Theis Equation to Determine Transmissivity

Transmissivity=(Pumping Rate*Well Function of u)/4*pi*Storage Coefficient GO

Drawdown across One Log Cycle from Distance-Drawdown Graphs when Transmissivity is Given

Drawdown Across One Log Cycle=2.3*Pumping Rate/(Transmissivity*2*pi) GO

Equation for Drawdown Across One Log Cycle when Transmissivity is Given

Drawdown Across One Log Cycle=2.3*Pumping Rate/Transmissivity*4*pi GO

Pumping Rate from Distance-Drawdown Graphs when Transmissivity is Given

Pumping Rate=Transmissivity*2*pi*Drawdown Across One Log Cycle/2.3 GO

Transmissivity from Distance-Drawdown Graphs

Transmissivity=2.3*Pumping Rate/2*pi*Drawdown Across One Log Cycle GO

Pumping Rate when Transmissivity is Given for Inconsistent Units from Distance-Drawdown Graphs

Pumping Rate=Transmissivity*Drawdown Across One Log Cycle/70 GO

Drawdown across One Log Cycle when Transmissivity is Given for Inconsistent Units

Drawdown Across One Log Cycle=70*Pumping Rate/Transmissivity GO

Transmissivity for Inconsistent Units from Distance-Drawdown Graphs

Transmissivity=70*Pumping Rate/Drawdown Across One Log Cycle GO

Modified Equation for Transmissivity from Time-Drawdown Graphs

Transmissivity=35*Pumping Rate/Drawdown Across One Log Cycle GO

< 11 Other formulas that calculate the same Output

Transmissivity when Storage Coefficient from Distance-Drawdown Graphs is Given

Transmissivity=(Storage Coefficient*Distance from Pumping Well to Point Intersection^2)/(2.25*Time at which the Drawdowns were Measured) GO

Transmissivity when Time at which Steady-Shape Conditions Develop is Given

Transmissivity=7200*Distance from Pumping Well to Observation Well^2*Storage Coefficient/time at which steady-shape conditions develop GO

Transmissivity When Storage Coefficient is Given from Theis Equation

Transmissivity=(Storage Coefficient*Distance from Pumping Well to Observation Well^2)/(4*Time*Varying Dimensionless Group ) GO

Transmissivity When Discharge Quantity is Known

Transmissivity=(Quantity of water/Large Width of Aquifer)*(Distance Between the Points/Change in Head Between the Points) GO

Transmissivity when Distance from Pumping Well is Given

Transmissivity=Distance from Pumping Well to Point Intersection^2*Storage Coefficient/2.25*Time GO

Transmissivity when First Estimate of the Pumping Rate is Given

Transmissivity=First Estimate of the Pumping Rate/2.7*Drawdown Across One Log Cycle GO

Theis Equation to Determine Transmissivity

Transmissivity=(Pumping Rate*Well Function of u)/4*pi*Storage Coefficient GO

Transmissivity of Aquifer

Transmissivity=Hydraulic Conductivity*Aquifer Thickness at Midpoint GO

Transmissivity from Distance-Drawdown Graphs

Transmissivity=2.3*Pumping Rate/2*pi*Drawdown Across One Log Cycle GO

Transmissivity for Inconsistent Units from Distance-Drawdown Graphs

Transmissivity=70*Pumping Rate/Drawdown Across One Log Cycle GO

Modified Equation for Transmissivity from Time-Drawdown Graphs

Transmissivity=35*Pumping Rate/Drawdown Across One Log Cycle GO

Transmissivity Derived from the Time-Drawdown Graphs Formula

Transmissivity=(2.3*Pumping Rate)/4*pi*Drawdown Across One Log Cycle
T=(2.3*Q)/4*pi*Δs

More formulas

Time at which Steady-Shape Conditions Develop GO

Transmissivity when Time at which Steady-Shape Conditions Develop is Given GO

Storage Coefficient when Time at which Steady-Shape Conditions Develop is Given GO

Storage Coefficient from the Time-Drawdown Graphs GO

Equation for Pumping Rate when Transmissivity derived from the Time-Drawdown Graphs is Given GO

Equation for Drawdown Across One Log Cycle when Transmissivity is Given GO

Distance from the Pumping Well to the Observation Well when Storage Coefficient is Given GO

Modified Equation for Transmissivity from Time-Drawdown Graphs GO

Modified Equation for Storage Coefficient from Time-Drawdown Graphs GO

What is Transmissivity?

Transmissivity describes the ability of the aquifer to transmit groundwater throughout its entire saturated thickness. Transmissivity is measured as the rate at which groundwater can flow through an aquifer section of unit width under a unit hydraulic gradient

How to Calculate Transmissivity Derived from the Time-Drawdown Graphs?

Transmissivity Derived from the Time-Drawdown Graphs calculator uses Transmissivity=(2.3*Pumping Rate)/4*pi*Drawdown Across One Log Cycle to calculate the Transmissivity, Transmissivity derived from the Time-Drawdown Graphs is the rate at which water passes through a unit width of the aquifer under a unit hydraulic gradient. Transmissivity and is denoted by T symbol.

How to calculate Transmissivity Derived from the Time-Drawdown Graphs using this online calculator? To use this online calculator for Transmissivity Derived from the Time-Drawdown Graphs, enter Pumping Rate (Q) and Drawdown Across One Log Cycle (Δs) and hit the calculate button. Here is how the Transmissivity Derived from the Time-Drawdown Graphs calculation can be explained with given input values -> 65030.97 = (2.3*2)/4*pi*5.

FAQ

What is Transmissivity Derived from the Time-Drawdown Graphs?

Transmissivity derived from the Time-Drawdown Graphs is the rate at which water passes through a unit width of the aquifer under a unit hydraulic gradient and is represented as T=(2.3*Q)/4*pi*Δs or Transmissivity=(2.3*Pumping Rate)/4*pi*Drawdown Across One Log Cycle. Pumping Rate is the actual volumetric pumping rate and Drawdown Across One Log Cycle from Time-drawdown graphs.

How to calculate Transmissivity Derived from the Time-Drawdown Graphs?

Transmissivity derived from the Time-Drawdown Graphs is the rate at which water passes through a unit width of the aquifer under a unit hydraulic gradient is calculated using Transmissivity=(2.3*Pumping Rate)/4*pi*Drawdown Across One Log Cycle. To calculate Transmissivity Derived from the Time-Drawdown Graphs, you need Pumping Rate (Q) and Drawdown Across One Log Cycle (Δs). With our tool, you need to enter the respective value for Pumping Rate and Drawdown Across One Log Cycle and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Transmissivity?

In this formula, Transmissivity uses Pumping Rate and Drawdown Across One Log Cycle. We can use 11 other way(s) to calculate the same, which is/are as follows -

Transmissivity=Hydraulic Conductivity*Aquifer Thickness at Midpoint
Transmissivity=(Quantity of water/Large Width of Aquifer)*(Distance Between the Points/Change in Head Between the Points)
Transmissivity=(Pumping Rate*Well Function of u)/4*pi*Storage Coefficient
Transmissivity=(Storage Coefficient*Distance from Pumping Well to Observation Well^2)/(4*Time*Varying Dimensionless Group )
Transmissivity=7200*Distance from Pumping Well to Observation Well^2*Storage Coefficient/time at which steady-shape conditions develop
Transmissivity=35*Pumping Rate/Drawdown Across One Log Cycle
Transmissivity=2.3*Pumping Rate/2*pi*Drawdown Across One Log Cycle
Transmissivity=(Storage Coefficient*Distance from Pumping Well to Point Intersection^2)/(2.25*Time at which the Drawdowns were Measured)
Transmissivity=70*Pumping Rate/Drawdown Across One Log Cycle
Transmissivity=Distance from Pumping Well to Point Intersection^2*Storage Coefficient/2.25*Time
Transmissivity=First Estimate of the Pumping Rate/2.7*Drawdown Across One Log Cycle

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