trmm2ncdf: trmm2ncdf function

In barryrowlingson/trmm: Read TRMM Data Files

Description

A function to convert TRMM rainfall data binaries into a NetCDF file

Usage

trmm2ncdf(directory, outfile = tempfile(fileext = ".nc"),
  start = ymd("20060101"), end = ymd("20060102"), by = "days",
  hours = c("00", "03", "06", "09", "12", "15", "18", "21"),
  product = "3B42RT", version = 7, poly = NULL, brick = TRUE,
  layer = NULL, quiet = FALSE)

Arguments

directory	directory in which the .bin files are stored. Note these must be gunzipped first
outfile	name and location of the NetCDF file to save results into
start	start date e.g. ymd('20121231')
end	end date e.g. ymd('20130101')
by	argument passed to seq(start,end,by), the sequence of days to download data from, default is all days between start and end
hours	the hours in the day for which to download data, a character string. Default is all hours.
product	the product to download, default is '3B42RT', but other options are '3B41RT' and '3B40RT'
version	version of the data to download, default is 7, but could be either 5 or 6. Note that version 7 has the greatest temporal coverage at present
poly	a polygonal window bounding a spatial subset of the data to extract. By default, all data over the range covered by TRMM will be extracted
brick	logical. If set to TRUE (the default) then this extracts all TRMM data at each time point
layer	the name of the layer to extract. Options are ”
quiet	logical: show progress?

Value

an object of class trmmNCDF, for which there is a method extract_ncdf for extracting data from the saved NetCDF file. The returned list object contains an element firstslice which is a raster brick of data from the first time point, this can be used to give the extracted data geographical context.

barryrowlingson/trmm documentation built on May 11, 2019, 8:31 p.m.