AnnualHeatIndex: Annual Heat Index

In jmerc13/LakeIsodrology: Lake isotope hydrology

Description

AnnualHeatIndex returns the annual heat index, I used by the Thornthwaite evaporation method.

Usage

AnnualHeatIndex(Ta, a = 1.514)

Arguments

Ta	Air temperature, T_{a} (C).
a	An emperical coefficient, assumed to be 1.514.

Details

I is determined by (Thornthwaite 1948, Rosenberry et al. 2007):

I = ∑_{i = 1}^{365} \bigg(\frac{T_{a,i}}{5}\bigg)^{a}

Thornthwaite CW. 1948. An approach toward a rational classification of climate. Geographical Review 38 (1): 55. DOI: 10.2307/210739.

Rosenberry DO, Winter TC, Buso DC, Likens GE. 2007. Comparison of 15 evaporation methods applied to a small mountain lake in the northeastern USA. Journal of Hydrology 340 (3–4): 149–166. DOI: 10.1016/j.jhydrol.2007.03.018.

jmerc13/LakeIsodrology documentation built on May 5, 2019, 5:52 p.m.