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Catchment Area for Hydrograph Analysis refers to an area of land where all water flows to a single stream, river, lake or even ocean. Check FAQs
AHA=0.36ΣOΔtSr
AHA - Catchment Area for Hydrograph Analysis?ΣO - Sum of Ordinates?Δt - Time Interval?Sr - Surface Runoff?

Catchment Area given Direct Runoff Depth Example

With values
With units
Only example

Here is how the Catchment Area given Direct Runoff Depth equation looks like with Values.

Here is how the Catchment Area given Direct Runoff Depth equation looks like with Units.

Here is how the Catchment Area given Direct Runoff Depth equation looks like.

580Edit=0.362.9Edit5Edit0.009Edit
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Catchment Area given Direct Runoff Depth Solution

Follow our step by step solution on how to calculate Catchment Area given Direct Runoff Depth?

FIRST Step Consider the formula
AHA=0.36ΣOΔtSr
Next Step Substitute values of Variables
AHA=0.362.9m³/s5s0.009m³/s
Next Step Prepare to Evaluate
AHA=0.362.950.009
LAST Step Evaluate
AHA=580

Catchment Area given Direct Runoff Depth Formula Elements

Variables
Catchment Area for Hydrograph Analysis
Catchment Area for Hydrograph Analysis refers to an area of land where all water flows to a single stream, river, lake or even ocean.
Symbol: AHA
Measurement: AreaUnit:
Note: Value should be greater than 0.
Sum of Ordinates
Sum of Ordinates refers to the summation of all the ordinates of direct runoff.
Symbol: ΣO
Measurement: Volumetric Flow RateUnit: m³/s
Note: Value should be greater than 0.
Time Interval
A Time Interval refers to the amount of time required for the change from initial to the final state.
Symbol: Δt
Measurement: TimeUnit: s
Note: Value should be greater than 0.
Surface Runoff
Surface Runoff refers to water, from rain, snowmelt, or other sources, that flows over the land surface, and is a major component of the water cycle.
Symbol: Sr
Measurement: Volumetric Flow RateUnit: m³/s
Note: Value should be greater than 0.

Other Formulas to find Catchment Area for Hydrograph Analysis

​Go Catchment Area in sq km given Number of Days after Peak
AHA=(NDays0.84)10.2
​Go Catchment Area in sq miles given Number of Days after Peak
AHA=(NDays)10.2

Other formulas in Hydrograph Analysis category

​Go Number of Days after Peak given Area in sq km
NDays=0.84(AHA)0.2
​Go Number of Days after Peak given Area in sq miles
NDays=(A1)0.2
​Go Direct Runoff depth given Sum of Ordinates
Sr=0.36(ΣOΔtAHA)
​Go Sum of Ordinates of Direct Runoff given Direct Runoff depth
ΣO=AHASr0.36Δt

How to Evaluate Catchment Area given Direct Runoff Depth?

Catchment Area given Direct Runoff Depth evaluator uses Catchment Area for Hydrograph Analysis = (0.36*Sum of Ordinates*Time Interval)/Surface Runoff to evaluate the Catchment Area for Hydrograph Analysis, The Catchment Area given Direct Runoff Depth is defined as the value of catchment area when we have prior information of other parameters used. Catchment Area for Hydrograph Analysis is denoted by AHA symbol.

How to evaluate Catchment Area given Direct Runoff Depth using this online evaluator? To use this online evaluator for Catchment Area given Direct Runoff Depth, enter Sum of Ordinates (ΣO), Time Interval (Δt) & Surface Runoff (Sr) and hit the calculate button.

FAQs on Catchment Area given Direct Runoff Depth

What is the formula to find Catchment Area given Direct Runoff Depth?
The formula of Catchment Area given Direct Runoff Depth is expressed as Catchment Area for Hydrograph Analysis = (0.36*Sum of Ordinates*Time Interval)/Surface Runoff. Here is an example- 600 = (0.36*2.9*5)/0.009.
How to calculate Catchment Area given Direct Runoff Depth?
With Sum of Ordinates (ΣO), Time Interval (Δt) & Surface Runoff (Sr) we can find Catchment Area given Direct Runoff Depth using the formula - Catchment Area for Hydrograph Analysis = (0.36*Sum of Ordinates*Time Interval)/Surface Runoff.
What are the other ways to Calculate Catchment Area for Hydrograph Analysis?
Here are the different ways to Calculate Catchment Area for Hydrograph Analysis-
  • Catchment Area for Hydrograph Analysis=(Number of Days/0.84)^(1/0.2)OpenImg
  • Catchment Area for Hydrograph Analysis=(Number of Days)^(1/0.2)OpenImg
Can the Catchment Area given Direct Runoff Depth be negative?
No, the Catchment Area given Direct Runoff Depth, measured in Area cannot be negative.
Which unit is used to measure Catchment Area given Direct Runoff Depth?
Catchment Area given Direct Runoff Depth is usually measured using the Square Meter[m²] for Area. Square Kilometer[m²], Square Centimeter[m²], Square Millimeter[m²] are the few other units in which Catchment Area given Direct Runoff Depth can be measured.
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