bi {ClimInd}

Budyko Index

Description

Budyko Index is based on characteristics of the surface heat and water balance.

Usage

bi(data, pr, data_names = NULL, na.rm = FALSE, ...)

Arguments

data

net radiation, J/m2

pr

daily precipitation, mm

data_names

names of each period of time

na.rm

logical. Should missing values (including NaN) be removed?

...

further arguments passed to or from other methods

Value

index value

Formula

BI = 100\frac {Rn}{L*P}

Rn= annual net radiation, P = annual precipitation, L = latent heat of vaporization for water

References

Budyko M.I. The Heat Balance of the Earth's Surface U.S. Department of Commerce, Washington D.C (1958) 259 pp., translated by N.A. Stepanova

Examples

data(data_all)
bi(data = data_all$radiation, pr = data_all$rr)