R/IntCal09.R

In SoilR: Models of Soil Organic Matter Decomposition

#' Northern Hemisphere atmospheric radiocarbon for the pre-bomb period
#' 
#' Northern Hemisphere atmospheric radiocarbon calibration curve for the period 0 to 50,000 yr BP. 
#' @docType data
#' @usage data(IntCal09)
#' @format
#'   A data frame with 3522 observations on the following 5 variables.
#'   \describe{
#'     \item{\code{CAL.BP}}{Calibrated age in years Before Present (BP).}
#'     \item{\code{C14.age}}{C14 age in years BP.}
#'     \item{\code{Error}}{Error estimate for \code{C14.age}.}
#'     \item{\code{Delta.14C}}{Delta.14C value in per mil.}
#'     \item{\code{Sigma}}{Standard deviation of \code{Delta.14C} in per mil.}
#'   }
#' @details
#' \code{Deltal.14C} is age-corrected as per Stuiver and Polach (1977). All details about the derivation of this dataset are provided in Reimer et al. (2009).
#' 
#' 
#' @references
#' P. Reimer, M.Baillie, E. Bard, A. Bayliss, J. Beck, P. Blackwell, C. Ramsey, C. Buck, G. Burr, R. Edwards, et al. 2009. IntCal09 and Marine09 radiocarbon age calibration curves, 0 - 50,000 years cal bp. Radiocarbon, 51(4):1111 - 1150.
#' 
#' 
#' M. Stuiver and H. A. Polach. 1977. Rerporting of C-14 data. Radiocarbon, 19(3):355 - 363.
#' 
#' @examples
#' par(mfrow=c(2,1))
#' plot(IntCal09$CAL.BP, IntCal09$C14.age, type="l")
#' polygon(x=c(IntCal09$CAL.BP,rev(IntCal09$CAL.BP)),
#' 	y=c(IntCal09$C14.age+IntCal09$Error,rev(IntCal09$C14.age-IntCal09$Error)),
#' 	col="gray",border=NA)
#' lines(IntCal09$CAL.BP,IntCal09$C14.age)
#' 
#' plot(IntCal09$CAL.BP,IntCal09$Delta.14C,type="l")
#' polygon(x=c(IntCal09$CAL.BP,rev(IntCal09$CAL.BP)),
#' 	y=c(IntCal09$Delta.14C+IntCal09$Sigma,rev(IntCal09$Delta.14C-IntCal09$Sigma)),
#' 	col="gray",border=NA)
#' lines(IntCal09$CAL.BP,IntCal09$Delta.14C)
#' par(mfrow=c(1,1))
#' 
#' @keywords datasets
'IntCal09'