rfluxnet: Process fluxnet data

#' @title DATASET_TITLE
#' @description DATASET_DESCRIPTION
#' @format A data frame with 253 rows and 18 variables:
#' \describe{
#'   \item{`V1`}{character COLUMN_DESCRIPTION}
#'   \item{`V2`}{character COLUMN_DESCRIPTION}
#'   \item{`V3`}{character COLUMN_DESCRIPTION}
#'   \item{`V4`}{character COLUMN_DESCRIPTION}
#'   \item{`V5`}{character COLUMN_DESCRIPTION}
#'   \item{`V6`}{character COLUMN_DESCRIPTION}
#'   \item{`V7`}{character COLUMN_DESCRIPTION}
#'   \item{`V8`}{character COLUMN_DESCRIPTION}
#'   \item{`V9`}{character COLUMN_DESCRIPTION}
#'   \item{`V10`}{character COLUMN_DESCRIPTION}
#'   \item{`V11`}{character COLUMN_DESCRIPTION}
#'   \item{`V12`}{character COLUMN_DESCRIPTION}
#'   \item{`V13`}{character COLUMN_DESCRIPTION}
#'   \item{`V14`}{character COLUMN_DESCRIPTION}
#'   \item{`V15`}{character COLUMN_DESCRIPTION}
#'   \item{`V16`}{character COLUMN_DESCRIPTION}
#'   \item{`V17`}{character COLUMN_DESCRIPTION}
#'   \item{`V18`}{character COLUMN_DESCRIPTION}
#' }
#' @source <http://somewhere.important.com/>
#'
#' @example man/example/ex-plot_nc.R
"LaThuile_site_policy"

#' @title Output_variables_FLUXNET2015_FULLSET
#' @description DATASET_DESCRIPTION
#' @format A data frame with 40 rows and 15 variables:
#' \describe{
#'   \item{`Fluxnet_variable`}{character COLUMN_DESCRIPTION}
#'   \item{`Fluxnet_unit`}{character COLUMN_DESCRIPTION}
#'   \item{`Fluxnet_class`}{character COLUMN_DESCRIPTION}
#'   \item{`Output_variable`}{character COLUMN_DESCRIPTION}
#'   \item{`Output_unit`}{character COLUMN_DESCRIPTION}
#'   \item{`Longname`}{character COLUMN_DESCRIPTION}
#'   \item{`Standard_name`}{character COLUMN_DESCRIPTION}
#'   \item{`CMIP_short_name`}{character COLUMN_DESCRIPTION}
#'   \item{`Data_min`}{integer COLUMN_DESCRIPTION}
#'   \item{`Data_max`}{double COLUMN_DESCRIPTION}
#'   \item{`Essential_met`}{integer COLUMN_DESCRIPTION}
#'   \item{`Preferred_eval`}{logical COLUMN_DESCRIPTION}
#'   \item{`Category`}{character COLUMN_DESCRIPTION}
#'   \item{`ERAinterim_variable`}{character COLUMN_DESCRIPTION}
#'   \item{`Aggregate_method`}{character COLUMN_DESCRIPTION}
#' }
#' @source <http://somewhere.important.com/>
"Output_variables_FLUXNET2015_FULLSET"


#' @title Output_variables_FLUXNET2015_SUBSET
#' @description DATASET_DESCRIPTION
#' @format A data frame with 39 rows and 15 variables:
#' \describe{
#'   \item{`Fluxnet_variable`}{character COLUMN_DESCRIPTION}
#'   \item{`Fluxnet_unit`}{character COLUMN_DESCRIPTION}
#'   \item{`Fluxnet_class`}{character COLUMN_DESCRIPTION}
#'   \item{`Output_variable`}{character COLUMN_DESCRIPTION}
#'   \item{`Output_unit`}{character COLUMN_DESCRIPTION}
#'   \item{`Longname`}{character COLUMN_DESCRIPTION}
#'   \item{`Standard_name`}{character COLUMN_DESCRIPTION}
#'   \item{`CMIP_short_name`}{character COLUMN_DESCRIPTION}
#'   \item{`Data_min`}{integer COLUMN_DESCRIPTION}
#'   \item{`Data_max`}{double COLUMN_DESCRIPTION}
#'   \item{`Essential_met`}{integer COLUMN_DESCRIPTION}
#'   \item{`Preferred_eval`}{logical COLUMN_DESCRIPTION}
#'   \item{`Category`}{character COLUMN_DESCRIPTION}
#'   \item{`ERAinterim_variable`}{character COLUMN_DESCRIPTION}
#'   \item{`Aggregate_method`}{character COLUMN_DESCRIPTION}
#' }
#' @source <http://somewhere.important.com/>
"Output_variables_FLUXNET2015_SUBSET"

#' @title DATASET_TITLE
#' @description DATASET_DESCRIPTION
#' @format A data frame with 29 rows and 15 variables:
#' \describe{
#'   \item{`Fluxnet_variable`}{character COLUMN_DESCRIPTION}
#'   \item{`Fluxnet_unit`}{character COLUMN_DESCRIPTION}
#'   \item{`Fluxnet_class`}{character COLUMN_DESCRIPTION}
#'   \item{`Output_variable`}{character COLUMN_DESCRIPTION}
#'   \item{`Output_unit`}{character COLUMN_DESCRIPTION}
#'   \item{`Longname`}{character COLUMN_DESCRIPTION}
#'   \item{`Standard_name`}{character COLUMN_DESCRIPTION}
#'   \item{`CMIP_short_name`}{character COLUMN_DESCRIPTION}
#'   \item{`Data_min`}{integer COLUMN_DESCRIPTION}
#'   \item{`Data_max`}{double COLUMN_DESCRIPTION}
#'   \item{`Essential_met`}{integer COLUMN_DESCRIPTION}
#'   \item{`Preferred_eval`}{logical COLUMN_DESCRIPTION}
#'   \item{`Category`}{character COLUMN_DESCRIPTION}
#'   \item{`ERAinterim_variable`}{logical COLUMN_DESCRIPTION}
#'   \item{`Aggregate_method`}{character COLUMN_DESCRIPTION}
#' }
#' @source <http://somewhere.important.com/>
"Output_variables_LaThuile"

#' @title DATASET_TITLE
#' @description DATASET_DESCRIPTION
#' @format A data frame with 48 rows and 15 variables:
#' \describe{
#'   \item{`Fluxnet_variable`}{character COLUMN_DESCRIPTION}
#'   \item{`Fluxnet_unit`}{character COLUMN_DESCRIPTION}
#'   \item{`Fluxnet_class`}{character COLUMN_DESCRIPTION}
#'   \item{`Output_variable`}{character COLUMN_DESCRIPTION}
#'   \item{`Output_unit`}{character COLUMN_DESCRIPTION}
#'   \item{`Longname`}{character COLUMN_DESCRIPTION}
#'   \item{`Standard_name`}{character COLUMN_DESCRIPTION}
#'   \item{`CMIP_short_name`}{character COLUMN_DESCRIPTION}
#'   \item{`Data_min`}{integer COLUMN_DESCRIPTION}
#'   \item{`Data_max`}{double COLUMN_DESCRIPTION}
#'   \item{`Essential_met`}{integer COLUMN_DESCRIPTION}
#'   \item{`Preferred_eval`}{logical COLUMN_DESCRIPTION}
#'   \item{`Category`}{character COLUMN_DESCRIPTION}
#'   \item{`ERAinterim_variable`}{character COLUMN_DESCRIPTION}
#'   \item{`Aggregate_method`}{character COLUMN_DESCRIPTION}
#' }
#' @source <http://somewhere.important.com/>
"Output_variables_OzFlux"

#' @title DATASET_TITLE
#' @description DATASET_DESCRIPTION
#' @format A data frame with 856 rows and 22 variables:
#' \describe{
#'   \item{`SiteCode`}{character COLUMN_DESCRIPTION}
#'   \item{`Exclude`}{character COLUMN_DESCRIPTION}
#'   \item{`Exclude_reason`}{logical COLUMN_DESCRIPTION}
#'   \item{`CABLE_PFT`}{integer COLUMN_DESCRIPTION}
#'   \item{`Description`}{character COLUMN_DESCRIPTION}
#'   \item{`TowerStatus`}{character COLUMN_DESCRIPTION}
#'   \item{`Country`}{character COLUMN_DESCRIPTION}
#'   \item{`Fullname`}{character COLUMN_DESCRIPTION}
#'   \item{`SiteLatitude`}{double COLUMN_DESCRIPTION}
#'   \item{`SiteLongitude`}{double COLUMN_DESCRIPTION}
#'   \item{`SiteElevation`}{double COLUMN_DESCRIPTION}
#'   \item{`IGBP_vegetation_short`}{character COLUMN_DESCRIPTION}
#'   \item{`IGBP_vegetation_long`}{character COLUMN_DESCRIPTION}
#'   \item{`Tier`}{integer COLUMN_DESCRIPTION}
#'   \item{`MeasurementHeight`}{double COLUMN_DESCRIPTION}
#'   \item{`TowerHeight`}{character COLUMN_DESCRIPTION}
#'   \item{`CanopyHeight`}{double COLUMN_DESCRIPTION}
#'   \item{`VegetationDescription`}{character COLUMN_DESCRIPTION}
#'   \item{`SoilType`}{character COLUMN_DESCRIPTION}
#'   \item{`Disturbance`}{character COLUMN_DESCRIPTION}
#'   \item{`CropDescription`}{character COLUMN_DESCRIPTION}
#'   \item{`Irrigation`}{character COLUMN_DESCRIPTION}
#' }
#' @source <http://somewhere.important.com/>
"site_metadata"