Curve Number for Antecedent Moisture Condition One Calculator

✖Runoff Curve Number is an empirical parameter used in hydrology for predicting direct runoff or infiltration from rainfall excess under AMC-11.ⓘ Runoff Curve Number [CN₁₁]

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✖Curve Number is based on the area's hydrologic soil group, land use , treatment and hydrologic condition.ⓘ Curve Number for Antecedent Moisture Condition One [CN]

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Curve Number for Antecedent Moisture Condition One Solution

STEP 0: Pre-Calculation Summary

Formula Used

Curve Number = Runoff Curve Number/(2.281-0.01281*Runoff Curve Number)
CN = CN₁₁/(2.281-0.01281*CN₁₁)
This formula uses 2 Variables

Variables Used

Curve Number - Curve Number is based on the area's hydrologic soil group, land use , treatment and hydrologic condition.
Runoff Curve Number - Runoff Curve Number is an empirical parameter used in hydrology for predicting direct runoff or infiltration from rainfall excess under AMC-11.

STEP 1: Convert Input(s) to Base Unit

Runoff Curve Number: 8 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

CN = CN₁₁/(2.281-0.01281*CN₁₁) --> 8/(2.281-0.01281*8)

Evaluating ... ...

CN = 3.67221783596203

STEP 3: Convert Result to Output's Unit

3.67221783596203 --> No Conversion Required

FINAL ANSWER

3.67221783596203 ≈ 3.672218 <-- Curve Number

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Engineering Hydrology » Runoff » Runoff Volume » SCS CN Method of Runoff Volume » Curve Number (CN) » Curve Number for Antecedent Moisture Condition One

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Created by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

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Meerut Institute of Engineering and Technology (MIET), Meerut

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< Curve Number (CN) Calculators

Curve Number for Antecedent Moisture Condition One

LaTeX Go Curve Number = Runoff Curve Number/(2.281-0.01281*Runoff Curve Number)

Potential Maximum Retention given Curve Number

LaTeX Go Potential Maximum Retention (Curve Number) = 254*(100/Curve Number-1)

Potential Maximum Retention

LaTeX Go Potential Maximum Retention (Curve Number) = (25400/Curve Number)-254

Curve Number

LaTeX Go Curve Number = 25400/(Potential Maximum Retention (Curve Number)+254)

Curve Number for Antecedent Moisture Condition One Formula

LaTeX Go

Curve Number = Runoff Curve Number/(2.281-0.01281*Runoff Curve Number)
CN = CN₁₁/(2.281-0.01281*CN₁₁)

What is Runoff Curve Number?

The Runoff curve number is an empirical parameter used in hydrology for predicting direct runoff or infiltration from rainfall excess. The curve number is based on the area's hydrologic soil group, land use, treatment and hydrologic condition.

What is Curve Number and on what factors it depends?

The Curve Number (CN) is a dimensionless parameter related to the potential maximum retention expressed in millimeters. It ranges from 0-100. A CN value of 100 represents a condition of zero potential retention and CN= 0 represents an infinitely abstracting catchment with S= ∞.
The Curve Number CN depends upon the following listed below
1. Soil Type
2. Land Use/Cover
3. Antecedent moisture condition

How to Calculate Curve Number for Antecedent Moisture Condition One?

Curve Number for Antecedent Moisture Condition One calculator uses Curve Number = Runoff Curve Number/(2.281-0.01281*Runoff Curve Number) to calculate the Curve Number, Curve Number for Antecedent Moisture Condition One formula is defined as the average conditions and indicates the runoff potential of a soil-cover complex during periods when the soil is not frozen. Curve Number is denoted by CN symbol.

How to calculate Curve Number for Antecedent Moisture Condition One using this online calculator? To use this online calculator for Curve Number for Antecedent Moisture Condition One, enter Runoff Curve Number (CN₁₁) and hit the calculate button. Here is how the Curve Number for Antecedent Moisture Condition One calculation can be explained with given input values -> 3.672218 = 8/(2.281-0.01281*8).

FAQ

What is Curve Number for Antecedent Moisture Condition One?

Curve Number for Antecedent Moisture Condition One formula is defined as the average conditions and indicates the runoff potential of a soil-cover complex during periods when the soil is not frozen and is represented as CN = CN₁₁/(2.281-0.01281*CN₁₁) or Curve Number = Runoff Curve Number/(2.281-0.01281*Runoff Curve Number). Runoff Curve Number is an empirical parameter used in hydrology for predicting direct runoff or infiltration from rainfall excess under AMC-11.

How to calculate Curve Number for Antecedent Moisture Condition One?

Curve Number for Antecedent Moisture Condition One formula is defined as the average conditions and indicates the runoff potential of a soil-cover complex during periods when the soil is not frozen is calculated using Curve Number = Runoff Curve Number/(2.281-0.01281*Runoff Curve Number). To calculate Curve Number for Antecedent Moisture Condition One, you need Runoff Curve Number (CN₁₁). With our tool, you need to enter the respective value for Runoff Curve Number 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 Curve Number?

In this formula, Curve Number uses Runoff Curve Number. We can use 2 other way(s) to calculate the same, which is/are as follows -

Curve Number = 25400/(Potential Maximum Retention (Curve Number)+254)
Curve Number = Runoff Curve Number/(0.427+0.00573*Runoff Curve Number)

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