BlaiseKelly

#' Function to command HYSPLIT (Hybrid Single Particle Lagrangian Integrated 
#' Trajectory Model) from R. 
#' 
#' \code{run_hysplit} will return a data frame which is ready for use in 
#' \strong{openair}'s \code{traj*} functions. 
#' 
#' @param latitude Latitude of a receptor location. 
#' 
#' @param longitude Longitude of a receptor location. 
#'