Command line interface
alcf model
alcf model - extract model data at a point or along a track
Usage:
alcf model <type> point: { <lon> <lat> } time: { <start> <end> } <input>
<output> [options]
alcf model <type> track: <track> <input> <output>
Arguments:
type
: input data type (see Types below)input
: input directoryoutput
: output directorylon
: point longitudelat
: point latitutdestart
: start time (see Time format below)end
: end time (see Time format below)track
: track NetCDF file (see Track below)options
: see Options below
Options:
track_override_year: <year>
: Override year in track. Use if comparing observations with a model statistically. Default:none
.--track_lon_180
: expect track longitude between -180 and 180 degrees
Types:
amps
: Antarctic Mesoscale Prediction System (AMPS)era5
: ERA5jra55
: JRA-55merra2
: Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2)nzcsm
: New Zealand Convection Scale Model (NZCSM)nzesm
: New Zealand Earth System Model (NZESM) (experimental)um
: UK Met Office Unified Model (UM)
Time format:
“YYYY-MM-DD[THH:MM[:SS]]”, where YYYY is year, MM is month, DD is day, HH is hour, MM is minute, SS is second. Example: 2000-01-01T00:00:00.
Track:
Track file is a NetCDF file containing 1D variables lon
, lat
, and time
.
time
is time in format conforming with the NetCDF standard,
lon
is longitude between 0 and 360 degrees and lat
is latitude between
-90 and 90 degrees.
Examples:
Extract MERRA-2 model data in M2I3NVASM.5.12.4
at 45 S, 170 E between
1 and 2 January 2020 and store the output in the directory alcf_merra2_model
.
alcf model merra2 point: { -45.0 170.0 } time: { 2020-01-01 2020-01-02 } \
M2I3NVASM.5.12.4 alcf_merra2_model