readmeteorologypoint: Reads point meteorology from the disk

Description

Functions to read point meteorological data from the disks in different formats.

Usage

readmeteorologypoint(file, dates = NULL, format = "meteoland/txt", sep = "\t")
readmeteorologypointfiles(
  points,
  files = NULL,
  dates = NULL,
  format = "meteoland/txt",
  sep = "\t"
)
readmeteorologypoints(
  files,
  dates = NULL,
  stations = NULL,
  format = "netCDF",
  varmapping = NULL,
  verbose = FALSE
)

Arguments

file: A string of the file to be read.
dates: Object of class "Date" describing a subset of dates to be extracted from meteorological series. If NULL the whole period read from files is kept.
format: Format of meteorological data. Current accepted formats for readmeteorologypoint and readmeteorologypointfiles are "meteoland/txt", "meteoland/rds", "castanea/txt" and "castanea/rds". The only accepted format for readmeteorologypoints is "netCDF".
sep: The field separator character for ascii text files (see read.table).
points: An object of class SpatialPoints (in this case files cannot be NULL) or object of class SpatialPointsDataFrame with two data columns: 'dir' and 'filename' (and possibly 'format').
files: A vector of strings to be read (when points is of class SpatialPoints). Length and order must match points.
stations: An integer vector or string vector identifying point indices or station names in the netCDF.
varmapping: Named character vector specifying a mapping of variables in the NetCDF into variables used in meteoland (e.g. c(MinTemperature = "tmn") specifies a map of variable 'tmn' to MinTemperature).
verbose: A logical flag to output process information in the console.

Functions

readmeteorologypointfiles():
readmeteorologypoints():

Author

Miquel De Cáceres Ainsa, CREAF

Nicolas Martin, INRA-Avignon

Details

Function readmeteorologypoint reads data series of a single location from an ascii or rds file and returns a data frame. Function readmeteorologypointfiles can be used to read multiple ascii/rds files and build an object of SpatialPointsMeteorology-class. This is done by supplying an points object of class SpatialPointsDataFrame-class with point meta data. In readmeteorologypointfiles the value of format is used as default but can be overloaded if points includes a column 'format'.