| koi {ClimInd} | R Documentation |
Kerner Oceanity Index
Description
KOI analysed the oceanity assuming that marine climates have colder spring months in comparison with the autum months.
Usage
koi(data, data_names = NULL, na.rm = FALSE, ...)
Arguments
data |
daily mean temperature, Celsius |
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
KOI = \frac {100(TGo-TGa)}{Thm-Tcm}
TGo = Average temperature of October TGa = Average temperature of April Thm = Average temperature of the hottest month (Celsius); Tcm = Average temperature of the coldest month (Celsius)
References
Zambakas J. 1992.General Climatology. Department of Geology,National & Kapodistrian University of Athens, Athens. Gavilan RG. 2005. The use of climatic parameters and indices in vege-tation distribution. A case study in the Spanish System Central.Int. J.Biometeorol.50: 111–120.
Examples
data(data_all)
koi(data = data_all$tg)