Annual Precipitation in (i-1)th year given Antecedent Precipitation Calculator

✖Antecedent Precipitation Index is a running day by day measure of catchment wetness based on the rainfall that has occurred over preceding days.ⓘ Antecedent Precipitation Index [P_a]			+10% -10%
✖Coefficient 'a' in straight-line regression between runoff and rainfall. The sum of other coefficients will be unity and found by trial and error.ⓘ Coefficient 'a' [a]			+10% -10%
✖Precipitation in (i)th Year for Antecedent Precipitation Index, a running day by day measure of catchment wetness based on the rainfall that has occurred over preceding days.ⓘ Precipitation in (i)th Year [P_i]			+10% -10%
✖Coefficient 'c' with their sum equal to unity.ⓘ Coefficient 'c' [c]			+10% -10%
✖Precipitation in (i-2)th Year for Antecedent Precipitation Index, a running day by day measure of catchment wetness based on rainfall that has occurred over preceding days.ⓘ Precipitation in (i-2)th Year [P_(i-2)]			+10% -10%
✖Coefficient 'b' with their sum equal to unity.ⓘ Coefficient 'b' [b]			+10% -10%

✖Precipitation in (i-1)th Year for Antecedent Precipitation Index, a running day by day measure of catchment wetness based on the rainfall that has occurred over preceding days.ⓘ Annual Precipitation in (i-1)th year given Antecedent Precipitation [P_(i-1)]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Rainfall Runoff Correlation and Strange's Tables Formulas PDF PDF Image

Annual Precipitation in (i-1)th year given Antecedent Precipitation Solution

STEP 0: Pre-Calculation Summary

Formula Used

Precipitation in (i-1)th Year = (Antecedent Precipitation Index-Coefficient 'a'*Precipitation in (i)th Year-Coefficient 'c'*Precipitation in (i-2)th Year)/Coefficient 'b'
P_(i-1) = (P_a-a*P_i-c*P_(i-2))/b
This formula uses 7 Variables

Variables Used

Precipitation in (i-1)th Year - (Measured in Meter) - Precipitation in (i-1)th Year for Antecedent Precipitation Index, a running day by day measure of catchment wetness based on the rainfall that has occurred over preceding days.
Antecedent Precipitation Index - (Measured in Meter) - Antecedent Precipitation Index is a running day by day measure of catchment wetness based on the rainfall that has occurred over preceding days.
Coefficient 'a' - Coefficient 'a' in straight-line regression between runoff and rainfall. The sum of other coefficients will be unity and found by trial and error.
Precipitation in (i)th Year - (Measured in Meter) - Precipitation in (i)th Year for Antecedent Precipitation Index, a running day by day measure of catchment wetness based on the rainfall that has occurred over preceding days.
Coefficient 'c' - Coefficient 'c' with their sum equal to unity.
Precipitation in (i-2)th Year - (Measured in Meter) - Precipitation in (i-2)th Year for Antecedent Precipitation Index, a running day by day measure of catchment wetness based on rainfall that has occurred over preceding days.
Coefficient 'b' - Coefficient 'b' with their sum equal to unity.

STEP 1: Convert Input(s) to Base Unit

Antecedent Precipitation Index: 96.39 Centimeter --> 0.9639 Meter (Check conversion here)
Coefficient 'a': 0.79 --> No Conversion Required
Precipitation in (i)th Year: 95 Centimeter --> 0.95 Meter (Check conversion here)
Coefficient 'c': 0.11 --> No Conversion Required
Precipitation in (i-2)th Year: 84 Centimeter --> 0.84 Meter (Check conversion here)
Coefficient 'b': 0.1 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

P_(i-1) = (P_a-a*P_i-c*P_(i-2))/b --> (0.9639-0.79*0.95-0.11*0.84)/0.1

Evaluating ... ...

P_(i-1) = 1.21

STEP 3: Convert Result to Output's Unit

1.21 Meter -->121 Centimeter (Check conversion here)

FINAL ANSWER

121 Centimeter <-- Precipitation in (i-1)th Year

(Calculation completed in 00.020 seconds)

You are here -

Home » Engineering » Civil » Engineering Hydrology » Runoff » Runoff Volume » Rainfall Runoff Correlation and Strange's Tables » Rainfall Runoff Correlation » Annual Precipitation in (i-1)th year given Antecedent Precipitation

Credits

Created by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

Mithila Muthamma PA has created this Calculator and 2000+ more calculators!

Verified by Chandana P Dev

NSS College of Engineering (NSSCE), Palakkad

Chandana P Dev has verified this Calculator and 1700+ more calculators!

< Rainfall Runoff Correlation Calculators

Annual Precipitation in (i-2)th year given Antecedent Precipitation

LaTeX Go Precipitation in (i-2)th Year = (Antecedent Precipitation Index-Coefficient 'a'*Precipitation in (i)th Year-Coefficient 'b'*Precipitation in (i-1)th Year)/Coefficient 'c'

Annual Precipitation in (i-1)th year given Antecedent Precipitation

LaTeX Go Precipitation in (i-1)th Year = (Antecedent Precipitation Index-Coefficient 'a'*Precipitation in (i)th Year-Coefficient 'c'*Precipitation in (i-2)th Year)/Coefficient 'b'

Annual Precipitation in i-th year given Antecedent Precipitation

LaTeX Go Precipitation in (i)th Year = (Antecedent Precipitation Index-Coefficient 'b'*Precipitation in (i-1)th Year-Coefficient 'c'*Precipitation in (i-2)th Year)/Coefficient 'a'

Precipitation using Runoff from Exponential Relationship

LaTeX Go Rainfall = (Runoff/Coefficient β)^(1/Coefficient m)

Annual Precipitation in (i-1)th year given Antecedent Precipitation Formula

LaTeX Go

What is Precipitation?

Precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds. The main forms of precipitation include drizzling, rain, sleet, snow, ice pellets, graupel and hail.

What is antecedent moisture condition?

Antecedent moisture condition is how wet or dry that soil storage sponge is when it starts to rain. If the soil storage sponge is already saturated before the storm hits, only a small percentage of the rainfall can be absorbed, meaning a large portion of the rainfall total will become runoff.

How to Calculate Annual Precipitation in (i-1)th year given Antecedent Precipitation?

Annual Precipitation in (i-1)th year given Antecedent Precipitation calculator uses Precipitation in (i-1)th Year = (Antecedent Precipitation Index-Coefficient 'a'*Precipitation in (i)th Year-Coefficient 'c'*Precipitation in (i-2)th Year)/Coefficient 'b' to calculate the Precipitation in (i-1)th Year, The Annual Precipitation in (i-1)th year given Antecedent Precipitation formula is defined as the i-1'th year is the total precipitation in the current year under consideration for the Antecedent Precipitation index. Precipitation in (i-1)th Year is denoted by P_(i-1) symbol.

How to calculate Annual Precipitation in (i-1)th year given Antecedent Precipitation using this online calculator? To use this online calculator for Annual Precipitation in (i-1)th year given Antecedent Precipitation, enter Antecedent Precipitation Index (P_a), Coefficient 'a' (a), Precipitation in (i)th Year (P_i), Coefficient 'c' (c), Precipitation in (i-2)th Year (P_(i-2)) & Coefficient 'b' (b) and hit the calculate button. Here is how the Annual Precipitation in (i-1)th year given Antecedent Precipitation calculation can be explained with given input values -> 7710 = (0.9639-0.79*0.95-0.11*0.84)/0.1.

FAQ

What is Annual Precipitation in (i-1)th year given Antecedent Precipitation?

The Annual Precipitation in (i-1)th year given Antecedent Precipitation formula is defined as the i-1'th year is the total precipitation in the current year under consideration for the Antecedent Precipitation index and is represented as P_(i-1) = (P_a-a*P_i-c*P_(i-2))/b or Precipitation in (i-1)th Year = (Antecedent Precipitation Index-Coefficient 'a'*Precipitation in (i)th Year-Coefficient 'c'*Precipitation in (i-2)th Year)/Coefficient 'b'. Antecedent Precipitation Index is a running day by day measure of catchment wetness based on the rainfall that has occurred over preceding days, Coefficient 'a' in straight-line regression between runoff and rainfall. The sum of other coefficients will be unity and found by trial and error, Precipitation in (i)th Year for Antecedent Precipitation Index, a running day by day measure of catchment wetness based on the rainfall that has occurred over preceding days, Coefficient 'c' with their sum equal to unity, Precipitation in (i-2)th Year for Antecedent Precipitation Index, a running day by day measure of catchment wetness based on rainfall that has occurred over preceding days & Coefficient 'b' with their sum equal to unity.

How to calculate Annual Precipitation in (i-1)th year given Antecedent Precipitation?

The Annual Precipitation in (i-1)th year given Antecedent Precipitation formula is defined as the i-1'th year is the total precipitation in the current year under consideration for the Antecedent Precipitation index is calculated using Precipitation in (i-1)th Year = (Antecedent Precipitation Index-Coefficient 'a'*Precipitation in (i)th Year-Coefficient 'c'*Precipitation in (i-2)th Year)/Coefficient 'b'. To calculate Annual Precipitation in (i-1)th year given Antecedent Precipitation, you need Antecedent Precipitation Index (P_a), Coefficient 'a' (a), Precipitation in (i)th Year (P_i), Coefficient 'c' (c), Precipitation in (i-2)th Year (P_(i-2)) & Coefficient 'b' (b). With our tool, you need to enter the respective value for Antecedent Precipitation Index, Coefficient 'a', Precipitation in (i)th Year, Coefficient 'c', Precipitation in (i-2)th Year & Coefficient 'b' and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search