Description of the MesoNH file format » History » Revision 3
Revision 2 (Rafael Bailon-Ruiz, 2020-12-08 14:39) → Revision 3/4 (Rafael Bailon-Ruiz, 2020-12-08 15:00)
h1. Description of the MesoNH file format
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MesoNH simulation output is saved into NetCDF (.nc) files with the specific dimensions and variables below. For information, the spatial resolution is *25m per cell* for the <code>W_E_direction</code> , <code>W_E_direction</code>, and <code>vertical_levels</code>. Temporal resolution is *5 seconds*.
The dataset description below has been obtained with the <code>ncinfo</code> command included in <code>netcdf4-python</code>
<pre>
title: Meso-NH simulation
grid_resolution_in_meters: 25.000000 x 25.000000
description: Data are from the file REFHR.1.ARMCu.001.dia
comments: Meso-NH experience starts at 1997 6 21 41400.0000 and
segment starts at 1997 6 21 63000.0000
dimensions(sizes):
time(144),
W_E_direction(256),
S_N_direction(256),
vertical_levels(160)
variables(dimensions):
int32 time(time),
float32 W_E_direction(W_E_direction),
float32 S_N_direction(S_N_direction),
float32 LON0(),
float32 LAT0(),
float32 LONOR(),
float32 LATOR(),
float32 BETA(),
float32 RPK(),
float32 THT(time, vertical_levels, S_N_direction, W_E_direction),
float32 VLEV(vertical_levels, S_N_direction, W_E_direction),
float32 LAT(S_N_direction, W_E_direction),
float32 LON(S_N_direction, W_E_direction),
float32 TKET(time, vertical_levels, S_N_direction, W_E_direction),
float32 UT(time, vertical_levels, S_N_direction, W_E_direction),
float32 VT(time, vertical_levels, S_N_direction, W_E_direction),
float32 WT(time, vertical_levels, S_N_direction, W_E_direction),
float32 PABST(time, vertical_levels, S_N_direction, W_E_direction),
float32 RVT(time, vertical_levels, S_N_direction, W_E_direction),
float32 RCT(time, vertical_levels, S_N_direction, W_E_direction),
float32 RRT(time, vertical_levels, S_N_direction, W_E_direction),
float32 SVT001(time, vertical_levels, S_N_direction, W_E_direction),
float32 SVT002(time, vertical_levels, S_N_direction, W_E_direction),
float32 SVT003(time, vertical_levels, S_N_direction, W_E_d
!ncview.png!
irection)
</pre>
h2. Viewing the contents of a NetCDF (.nc) file
the nco package provides the ncview program to display netCDF files.
!ncview.png!
h2. Sample cloud file
"cloud_example.nc":/attachments/download/3295/cloud_example.nc attachment:cloud_example.nc (Contains 2 seconds and 2 vertical levels only)