Outputs
Printer
This is the default output. It prints the values minimum and maximum values of a few fields for each forecasting time step. It does not take any parameters.
output: printer
printer
is the default output if no output is specified.
Example of output:
😀 date=2022-09-11T00:00:00 latitudes=(40320,) longitudes=(40320,) fields=88
q_50 shape=(40320,) min=7.90953e-07 max=3.18848e-06
t_700 shape=(40320,) min=219.916 max=289.703
v_300 shape=(40320,) min=-39.5658 max=58.6892
z_100 shape=(40320,) min=139951 max=164233
tp shape=(40320,) min=0 max=0.897616
grib
The grib output writes the output to a GRIB file.
output:
grib: /path/to/grib/file.grib
The path to the output file is actually a template.
path: "output-{date}-{time}-{step}.grib"
For each field, the output path will be constructed by substituting the string between curly braces with the corresponding value, based on the GRIB’s eccodes keys.
It relies heavily on having a GRIB input, but will nevertheless attempt to encode the data as GRIB messages when this is not the case. For more information, see GRIB output.
netcdf
The netcdf output writes the output to a NetCDF file. The encoding is basic, and the code does not attempt rebuild 3D fields from 2D fields. The only coordinates are latitude, longitude and time. Each state variable is written in its own NetCDF variable.
output:
netcdf: /path/to/netcdf/file.nc
plot
The plot
output writes the output to a series of plots. The plots
are produced in a directory, and the file are name according to a
template. Dates are formatted using the strftime function before being
used by the template. You can select which variables to plot.
output:
plot:
path: /path/to/directory
format: png
dpi: 300
strftime: "%Y%m%d%H%M%S"
template: "plot_{variable}_{date}.{format}"
Warning
This feature is experimental and is not yet fully implemented. The plot generated are very basic and are intended for debugging purposes. This feature will be developed further.
raw
The raw output writes the state variables collection of npz
files in
the given directory.
output:
raw: /path/to/directory
Note
The raw output is useful for debugging and testing purposes. If is proven useful, it can be developed further.
tee
The tee
output writes the state to several outputs at once.
output:
tee:
- netcdf: /path/to/netcdf/file.nc
- grib: /path/to/grib/file.grib
apply_mask
The apply_mask
output applies a mask to the output fields. The mask
is found in the checkpoint file. This is experimental and is intended to
be used to undo some merging of fields that was done in the input. The
result is passed to the next output.
output:
apply_mask:
mask: thinning
output: /path/to/output.nc
extract_lam
Similar to the previous one, extract_lam
will extract the LAM domain
from the output fields. The LAM domain is found in the checkpoint file,
and is based on anemoi-datasets’s cutout feature.
output:
extract_lam:
output:
tee:
- netcdf:
path: lam.nc
- plot:
path: lam-plots
variables:
- 2t
- z_500
- t_850