ForamGrowthfT {sedproxy}

Foraminifer Growth Rate Function from Lombard et al. (2009)

Description

Implements the function for foraminifer growth rate as a function of temperature from Lombard et al. (2009) with parametrization from FAME 1.0 (Roche et al, 2018).

Usage

ForamGrowthfT(
  foram = c("sacculifer", "bulloides", "pachy_d", "siphonifera", "universa", "pachy_s",
    "dutertrei", "ruber"),
  temperature_K,
  norm = FALSE,
  min.growth.thresh = 0
)

Arguments

foram

Name of foram.

temperature_K

Temperature in Kelvin

norm

Optional normalizing factor

min.growth.thresh

Sets a lower cutoff for growth as a proportion of the maximum growth rate for that taxon. For example in Roche et al (2018) a cutoff of 0.1 was used, meaning all growth rates less than 0.1*max were set to zero.

Value

A numerical vector or matrix with the same dimensions as the object passed to temperature_K. Units are daily growth rate, unless norm == TRUE.

References

Lombard, F., Labeyrie, L., Michel, E., Spero, H. J., and Lea, D. W.: Modelling the temperature dependent growth rates of planktic foraminifera, Marine Micropaleontology, 70, 1–7, https://doi.org/10.1016/j.marmicro.2008.09.004, 2009.

Roche, D. M., Waelbroeck, C., Metcalfe, B. and Caley, T.: FAME (v1.0): a simple module to simulate the effect of planktonic foraminifer species-specific habitat on their oxygen isotopic content, Geosci. Model Dev. Discuss., 2017, 1–22, doi:10.5194/gmd-2017-251, 2017.

Examples

ForamGrowthfT(foram = 'ruber', temperature_K = (c(280, 290)), norm = 1)