varBLRPRX {HyetosMinute}R Documentation

Variance for the random Bartlett-Lewis rectangular pulse model with dependent intensity-duration

Description

The function varBLRPRX is the modeled variance of rainfall according to the equation of random parameter Bartlett-Lewis model with dependent intensity-duration. The model supports exponential, gamma distribution for cell intensity.

Usage

varBLRPRX(a,l,v,k,f,i,sxmx,h,weibTF)

Arguments

l

A positive number that specifies the rate of Poisson process. The time units are days (d).

f

Constant φ=γ/η.

k

Constant κ=β/η.

a

A positive number that specifies the shape parameter α of gamma distribution.

v

A positive number that specifies the scale parameter ν of gamma distribution.

i

Ratio ι=μ_x/η for the case of Bartlett-Lewis model with dependent intensity-duration.

sxmx

A positive number that specifies the ratio of standard deviation to mean cell intensity.

h

Time scale (e.g. 1/60, 1/30, 1/12, 1, 6, 12, 24 hour etc.).

weibTF

Logical value that specifies if the intensities follow the Weibull distribution.

Value

var

Variance of rainfall depth.

Author(s)

Kossieris Panagiotis pankoss@hotmail.com


[Package HyetosMinute version 2.2 Index]