bi: Budyko Index

In ClimInd: Climate Indices

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)

Example output

Loading required package: SPEI
Loading required package: lmomco
Loading required package: parallel
Loading required package: ggplot2
# Package SPEI (1.7) loaded [try SPEINews()].
Loading required package: chron
Loading required package: weathermetrics
     2050      2051      2052      2053      2054      2055      2056      2057 
       NA        NA        NA        NA        NA        NA        NA        NA 
     2058      2059      2060      2061      2062      2063      2064      2065 
       NA        NA        NA        NA        NA        NA        NA        NA 
     2066      2067      2068      1969      1970      1971      1972      1973 
       NA        NA        NA        NA        NA        NA        NA        NA 
     1974      1975      1976      1977      1978      1979      1980      1981 
       NA        NA        NA        NA        NA        NA 1.2490332 1.2973782 
     1982      1983      1984      1985      1986      1987      1988      1989 
1.1139593 1.3864007 1.1760047 1.3906234 1.1257766 1.1016886 1.1166975 0.9264161 
     1990      1991      1992      1993      1994      1995      1996      1997 
1.4608452 1.2479053 1.2481889 1.5082844 2.1338850 1.4758051 0.9963161 1.0948740 
     1998      1999      2000      2001      2002      2003      2004      2005 
1.4018798 1.4120109 1.7300101 1.8052389 1.1073422 1.1104391 1.3533088 1.7409988 
     2006      2007      2008      2009      2010      2011      2012      2013 
1.6191317 1.3607953 0.9845605 1.4780455 1.0759828 1.4405177 1.6688278 1.0968553 
     2014      2015      2016      2017 
1.3036712 1.3301252 1.2137736 1.8069967 

ClimInd documentation built on April 10, 2021, 1:06 a.m.