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Area of Catchment is the geographical area from which water flows into a particular point, such as a well, stream, or reservoir. Check FAQs
A=Qpd(Tp11.56)10.9
A - Area of Catchment?Qpd - Peak discharge of a D-h Unit hydrograph?Tp1 - Lag Time of a 1-h Unit Hydrograph?

Catchment Area given Lag Time of 1-h Unit Hydrograph Example

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With units
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Here is how the Catchment Area given Lag Time of 1-h Unit Hydrograph equation looks like with Values.

Here is how the Catchment Area given Lag Time of 1-h Unit Hydrograph equation looks like with Units.

Here is how the Catchment Area given Lag Time of 1-h Unit Hydrograph equation looks like.

3.0001Edit=129031Edit(26.48Edit1.56)10.9
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Catchment Area given Lag Time of 1-h Unit Hydrograph Solution

Follow our step by step solution on how to calculate Catchment Area given Lag Time of 1-h Unit Hydrograph?

FIRST Step Consider the formula
A=Qpd(Tp11.56)10.9
Next Step Substitute values of Variables
A=129031m³/s(26.48h1.56)10.9
Next Step Prepare to Evaluate
A=129031(26.481.56)10.9
Next Step Evaluate
A=3000068.38722797
Next Step Convert to Output's Unit
A=3.00006838722797km²
LAST Step Rounding Answer
A=3.0001km²

Catchment Area given Lag Time of 1-h Unit Hydrograph Formula Elements

Variables
Area of Catchment
Area of Catchment is the geographical area from which water flows into a particular point, such as a well, stream, or reservoir.
Symbol: A
Measurement: AreaUnit: km²
Note: Value should be greater than 0.
Peak discharge of a D-h Unit hydrograph
Peak discharge of a D-h Unit hydrograph is the maximum volume flow rate displays in a unit hydrograph.
Symbol: Qpd
Measurement: Volumetric Flow RateUnit: m³/s
Note: Value should be greater than 0.
Lag Time of a 1-h Unit Hydrograph
Lag Time of a 1-h Unit Hydrograph is the time interval from the midpoint of the rainfall excess to the peak.
Symbol: Tp1
Measurement: TimeUnit: h
Note: Value should be greater than 0.

Other Formulas to find Area of Catchment

​Go Catchment Area given Peak Discharge of D-h Unit Hydrograph
A=(Qpd1.79)43
​Go Catchment Area for Peak Discharge of Weighted Mean Slope Lesser than 0.0028
A=(Qpd37.4Sm23)43

Other formulas in The Indian Practice category

​Go Peak Discharge of D-h Unit Hydrograph
Qpd=1.79A34
​Go Peak Discharge of D-h Unit Hydrograph for Weighted Mean Slope Lesser than 0.0028
Qpd=37.4A34Sm23
​Go Weighted Mean Slope given Peak Discharge of D-h Unit Hydrograph
Sm=(Qpd37.4A34)32
​Go Lag Time of 1-h Unit Hydrograph
Tp1=1.56(QpdA)0.9

How to Evaluate Catchment Area given Lag Time of 1-h Unit Hydrograph?

Catchment Area given Lag Time of 1-h Unit Hydrograph evaluator uses Area of Catchment = Peak discharge of a D-h Unit hydrograph*(Lag Time of a 1-h Unit Hydrograph/1.56)^(1/0.9) to evaluate the Area of Catchment, The Catchment Area given Lag Time of 1-h Unit Hydrograph formula is defined as the area of land where all of the precipitation that falls, less the water lost to evaporation and deep aquifer recharge, eventually flows to a single outlet. Area of Catchment is denoted by A symbol.

How to evaluate Catchment Area given Lag Time of 1-h Unit Hydrograph using this online evaluator? To use this online evaluator for Catchment Area given Lag Time of 1-h Unit Hydrograph, enter Peak discharge of a D-h Unit hydrograph (Qpd) & Lag Time of a 1-h Unit Hydrograph (Tp1) and hit the calculate button.

FAQs on Catchment Area given Lag Time of 1-h Unit Hydrograph

What is the formula to find Catchment Area given Lag Time of 1-h Unit Hydrograph?
The formula of Catchment Area given Lag Time of 1-h Unit Hydrograph is expressed as Area of Catchment = Peak discharge of a D-h Unit hydrograph*(Lag Time of a 1-h Unit Hydrograph/1.56)^(1/0.9). Here is an example- 3E-6 = 129031*(95328/1.56)^(1/0.9).
How to calculate Catchment Area given Lag Time of 1-h Unit Hydrograph?
With Peak discharge of a D-h Unit hydrograph (Qpd) & Lag Time of a 1-h Unit Hydrograph (Tp1) we can find Catchment Area given Lag Time of 1-h Unit Hydrograph using the formula - Area of Catchment = Peak discharge of a D-h Unit hydrograph*(Lag Time of a 1-h Unit Hydrograph/1.56)^(1/0.9).
What are the other ways to Calculate Area of Catchment?
Here are the different ways to Calculate Area of Catchment-
  • Area of Catchment=(Peak discharge of a D-h Unit hydrograph/1.79)^(4/3)OpenImg
  • Area of Catchment=(Peak discharge of a D-h Unit hydrograph/(37.4*Weighted Mean Slope^(2/3)))^(4/3)OpenImg
Can the Catchment Area given Lag Time of 1-h Unit Hydrograph be negative?
No, the Catchment Area given Lag Time of 1-h Unit Hydrograph, measured in Area cannot be negative.
Which unit is used to measure Catchment Area given Lag Time of 1-h Unit Hydrograph?
Catchment Area given Lag Time of 1-h Unit Hydrograph is usually measured using the Square Kilometer[km²] for Area. Square Meter[km²], Square Centimeter[km²], Square Millimeter[km²] are the few other units in which Catchment Area given Lag Time of 1-h Unit Hydrograph can be measured.
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