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#' Constructor of GPAS (Micheletti's formulation) weighted waveband
#'
#' Generalized Plant Action BSWF of Caldwell [1] as formulated by Micheletti et
#' al. [2]
#'
#' @param norm normalization wavelength (nm)
#' @param w.low short-end boundary wavelength (nm)
#' @param w.high long-end boundary wavelength (nm)
#'
#' @return a waveband object wavelength defining wavelength range, weighting function
#' and normalization wavelength.
#'
#' @references
#' [1]Caldwell, M. M. (1971) Solar UV irradiation and the growth and development
#' of higher plants. In Giese, A. C. (Ed.) Photophysiology, Academic Press,
#' 1971, 6, 131-177
#'
#' [2] Micheletti, M. I.; Piacentini, R. D. & Madronich, S. (2003) Sensitivity
#' of Biologically Active UV Radiation to Stratospheric Ozone Changes: Effects
#' of Action Spectrum Shape and Wavelength Range Photochemistry and
#' Photobiology, 78, 456-461
#'
#' @note In the original publication [2] describing the formulation, the
#' long-end wavelength boundary is specified as 313.3 nm. This is the default
#' used here. However, in some cases it is of interest to vary this limit in
#' sensitivity analyses. The effect on the RAF and doses of changing this
#' boundary is substantial, and has been analysed by Micheletti et al. [3].
#'
#' @export
#' @seealso \code{\link{new_waveband}} and \code{\link{waveband}}
#' @examples
#' GEN_M()
#' GEN_M(300)
#'
#' @family BSWF weighted wavebands
#'
GEN_M <- function(norm = 300,
w.low = 275,
w.high = 313.3) {
new_waveband(
w.low = w.low,
w.high = w.high,
weight = "SWF",
SWF.q.fun = GEN_M_q_fun,
SWF.norm = 300,
norm = norm,
wb.name = paste("GEN.M", as.character(norm), sep = "."),
wb.label = "GEN(M)"
)
}
#' Constructor of GPAS (Micheletti) weighted waveband
#'
#' Generalized Plant Action BSWF of Caldwell as formulated by Micheletti et al.
#'
#' @export
#'
#' @seealso \code{\link{GEN_M}}
#'
#' @keywords internal
#'
GEN.M <- GEN_M
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