R/turbulence.R

In ocedata: Oceanographic Data Sets for 'oce' Package

#' Grant et al. (1962) turbulence data
#'
#' Turbulence spectrum \eqn{phi}{phi}, as a function of wavenumber \eqn{k}{k}
#' for a run starring at 0905h on October 3, 1959, with data in their Appendix
#' 1 and graph in their Figure 9 and Appendix 1.  The units are c.g.s., that is
#' \eqn{k}{k} is in \eqn{cm^{-2}}{cm^{-1}} and \eqn{phi} is in
#' \eqn{cm^3/s^2}{cm^3/s^2}.
#'
#' @name turbulence
#'
#' @docType data
#'
#' @usage data(turbulence, package="ocedata")
#'
#' @examples
#' # Recreate Fig 9 of Grant et al. (1962), with intercept
#' # chosen to mimic the published figure
#' data(turbulence, package="ocedata")
#' plot(log10(turbulence$k), log10(turbulence$phi),
#'     xlab=expression(log[10]*k), ylab=expression(log[10]*phi), pch=20)
#' grid()
#' power <- -5/3
#' intercept <- -0.3
#' abline(intercept, power)
#'
#' @references
#' H. L. Grant and R. W. Stewart and A. Moilliet, 1962.  Turbulence
#' spectra from a tidal channel.  *Journal of Fluid Mechanics*,
#' 12(2): 241-268.
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