Antecedent Precipitation Index in Rainfall Runoff Correlation and Strange's Tables Formulas

Antecedent Precipitation Index is a running day by day measure of catchment wetness based on the rainfall that has occurred over preceding days. And is denoted by P_a. Antecedent Precipitation Index is usually measured using the Centimeter for Length. Note that the value of Antecedent Precipitation Index is always positive.

Formulas to find Antecedent Precipitation Index in Rainfall Runoff Correlation and Strange's Tables

fxAntecedent Precipitation IndexGo

Rainfall Runoff Correlation and Strange's Tables formulas that make use of Antecedent Precipitation Index

fxAnnual Precipitation in (i-2)th year given Antecedent PrecipitationGo

fxAnnual Precipitation in (i-1)th year given Antecedent PrecipitationGo

fxAnnual Precipitation in i-th year given Antecedent PrecipitationGo

List of variables in Rainfall Runoff Correlation and Strange's Tables formulas

fx Coefficient 'a' Go

fx Precipitation in (i)th Year Go

fx Coefficient 'b' Go

fx Precipitation in (i-1)th Year Go

fx Coefficient 'c' Go

fx Precipitation in (i-2)th Year Go

FAQ

What is the Antecedent Precipitation Index?

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 is usually measured using the Centimeter for Length. Note that the value of Antecedent Precipitation Index is always positive.

Can the Antecedent Precipitation Index be negative?

No, the Antecedent Precipitation Index, measured in Length cannot be negative.

What unit is used to measure Antecedent Precipitation Index?

Antecedent Precipitation Index is usually measured using the Centimeter[cm] for Length. Meter[cm], Millimeter[cm], Kilometer[cm] are the few other units in which Antecedent Precipitation Index can be measured.

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