Calculate geometrical temperature trend for mean, minimum or maximum temperature.
temp_geom(day, fi, variable="mean", ab =NULL)
Arguments
day: integer; Day of the year (from 1 to 366). Single value or vector of days of the year (only if fi is single value).
fi: numeric; Latitude. Single value or vector of latitudes (only if day is single value).
variable: character; Geometrical temperature trend calculated for mean, minimum or maximum temperature; Possible values are 'mean', 'min' or 'max'. 'mean' is default.
ab: Predefined coefficients to be used instead of incorporated.
Returns
A numerical single value or vector with calculated geometrical temperature trend.
References
Kilibarda, M., T. Hengl, G. B. M. Heuvelink, B. Graeler, E. Pebesma, M. Percec Tadic, and B. Bajat (2014), Spatio-temporal interpolation of daily temperatures for global land areas at 1 km resolution, J. Geophys. Res. Atmos., 119, 2294-2313, doi:10.1002/2013JD020803.