R/secchi.R

In USGS-R/lakeattributes: A collection of lake attribute data

#'@title Secchi data table
#'
#'
#'@name secchi
#'
#'@return secchi data.frame with all available observed secchi data.
#'
#'\tabular{lll}{
#'Name \tab Type \tab Description\cr
#'site_id \tab character \tab Unique identifier of site\cr
#'year \tab numeric \tab Year of observation\cr
#'date \tab character \tab Date of observation (May 15th for secchi averages)\cr
#'secchi_m \tab numeric \tab Observed or estimated Secchi depth in meters\cr
#'source \tab character \tab Source (satellite or in-situ)\cr
#'}
#'
#'@docType data
#'
#'@examples
#'head(secchi)
#'
#'@export secchi
NULL