A function to split the monthly netCDF files into system
(i.e., wet-periods)
files. It will discard time steps with precipitation less than user-defined
thresholds. Each wet period will be stored individually in a netCDF file.
The function can crop the data to a spatial extent provided by shapefile or pkg.
The window size will trim the extent of layers (nrow, ncol) to a magnitude
dividable by the size of the PIV interrogation window.
See PIV_multipass.
Usage
split_netCDF_files(
netCDF.file,
threshold = 1,
n = 5,
sub_region = NA,
window_size = 16,
output.path
)Arguments
- netCDF.file
character pointing to the netCDF file.
- threshold
numeric value representing the minimum precipitation rate. Default is 1 mm/hr. It will be considered to delineate the precipitation objects.
- n
size of the smoothing kernel (i.e. moving average). only odd values. Default is 5.
- sub_region
character pointing to a shapefile or gpkg to crop netCDF file.
- window_size
the first window size for PIV approach. Default is 16.
- output.path
character indicating where to place output files.