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Kirpich Time Of Concentration Equations Formulas Calculator

Watershed Hydrology


Solving for time of concentration.

time of concentration


Inputs:

travel length (L)
slope (S)



Conversions:

travel length (L)
=0
=0
foot
slope (S)
=0
=0


Solution:

time of concentration (tc)
=NOT CALCULATED 


Other Units:



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Izzard formula
time of concentration time of concentration
overland flow distance overland flow distance
retardance coefficient retardance coefficient
slope slope

Kerby formula
time of concentration time of concentration
flow length flow length
retardance roughness coefficient retardance roughness coefficient

Kirpich formula
time of concentration time of concentration
travel length travel length
slope slope

Kinematic wave formula
time of concentration time of concentration
overland flow length overland flow length
Manning's overland flow roughness coefficient Manning's overland flow roughness coefficient
rainfall intensity rainfall intensity
average overland flow path slope average overland flow path slope

National Resources Conservation Service
time of concentration time of concentration
watershed lag time watershed lag time

watershed lag time watershed lag time
watershed hydraulic length watershed hydraulic length
potential watershed storage potential watershed storage
average watershed slope average watershed slope

Bransby Williams Equation
time of concentration time of concentration
channel length channel length
watershed area watershed area
linear profile slope linear profile slope

References - Books:

Martin Wanielista, Robert Kersten and Ron Eaglin. 1997. Hydrology Water Quantity and Quality Control. John Wiley & Sons. 2nd ed.
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