[Wrf-users] Wrf-users Digest, Vol 163, Issue 7

Ian Dragaud iandragaud at lamma.ufrj.br
Mon Apr 2 10:34:42 MDT 2018


Dear Tian Yue,

I have used the following 35 vertical levels and it worked fine:

eta_levels                          = 1.000, 0.993, 0.983, 0.970, 0.954,
                                       0.934, 0.909, 0.880, 0.845, 0.807,
                                       0.765, 0.719, 0.672, 0.622, 0.571,
                                       0.520, 0.468, 0.420, 0.376, 0.335,
                                       0.298, 0.263, 0.231, 0.202, 0.175,
                                       0.150, 0.127, 0.106, 0.088, 0.070,
                                       0.055, 0.040, 0.026, 0.013, 0.000,


Regards,
Ian Dragaud

2018-03-27 14:58 GMT-03:00 <wrf-users-request at ucar.edu>:

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> Today's Topics:
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>    1. Fail to run WRFV3.9 with specified eta_level (??)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 27 Mar 2018 20:46:25 +0800 (CST)
> From: ?? <tianyue0704 at 163.com>
> To: wrf-users at ucar.edu
> Subject: [Wrf-users] Fail to run WRFV3.9 with specified eta_level
> Message-ID: <36899a3d.1a8d0.162677ec9ad.Coremail.tianyue0704 at 163.com>
> Content-Type: text/plain; charset="gbk"
>
> Dear all,
>
>
> I`m currently running WRF Version 3.9 with 35 specified eta_levels, for
> the default vertical levels are not dense enough to study the boundary
> layer phenomenon. However, the calcution always stopped at just few seconds.
>
>
> I have checked rsl.out.* and rsl.error.* files, and there`s no obvious
> error message.
>
>
> I wonder if it is related to the numerically unstable issues, so I have
> tried different timestep such as 81, 54, 27, 18 ad 6s, but still got CFL
> prints in the rsl.* files.
>
>
> Can anyone figure out the reason? Or how can I get more detailed error
> message? Looking forward to your suggestion.
>
>
> Here`s my namelist.input :
>  &time_control
>  run_days                            = 0,
>  run_hours                           = 42,
>  run_minutes                         = 0,
>  run_seconds                         = 0,
>  start_year                          = 2016, 2016, 2016, 2016,
>  start_month                         = 12,   12,   12,   12,
>  start_day                           = 06,   06,   06,   06,
>  start_hour                          = 00,   00,   00,   00,
>  start_minute                        = 00,   00,   00,   00,
>  start_second                        = 00,   00,   00,   00,
>  end_year                            = 2016, 2016, 2016, 2016,
>  end_month                           = 12,   12,   12,   12,
>  end_day                             = 07,   07,   07,   07,
>  end_hour                            = 18,   18,   18,   18,
>  end_minute                          = 00,   00,   00,   00,
>  end_second                          = 00,   00,   00,   00,
>  interval_seconds                    = 21600
>  input_from_file                     = .true., .true., .true., .true.,
>  history_interval                    = 1440,   720,    720,    60,
>  frames_per_outfile                  = 1000,   1000,   1000,   1000,
>  restart                             = .false.,
>  restart_interval                    = 3000,
>  io_form_history                     = 2,
>  io_form_restart                     = 2,
>  io_form_input                       = 2,
>  io_form_boundary                    = 2,
>  debug_level                         = 0,
>  /
>
>
>  &domains
>
>
>  eta_levels                          = 1.00,    0.9975,  0.995,   0.9925,
> 0.99,
>                                        0.985,   0.98,    0.975,   0.97,
> 0.965,
>                                        0.96,    0.95,    0.94,    0.93,
> 0.92,
>                                        0.91,    0.90,    0.89,    0.88,
> 0.87,
>                                        0.86,    0.85,    0.84,    0.82,
> 0.80,
>                                        0.75,    0.70,    0.65,    0.60,
> 0.50,
>                                        0.40,    0.30,    0.20,    0.10,
> 0.00,
>  time_step                           = 6,
>  time_step_fract_num                 = 0,
>  time_step_fract_den                 = 1,
>  max_dom                             = 4,
>  e_we                                = 200,   178,   187,   205,
>  e_sn                                = 200,   190,   193,   205,
>  e_vert                              = 35,    35,    35,    35,
>  p_top_requested                     = 10000,
>  num_metgrid_levels                  = 32,
>  num_metgrid_soil_levels             = 4,
>  dx                                  = 27000, 9000,  3000,  1000,
>  dy                                  = 27000, 9000,  3000,  1000,
>  grid_id                             = 1,     2,     3,     4,
>  parent_id                           = 1,     1,     2,     3,
>  i_parent_start                      = 1,     73,    57,    46,
>  j_parent_start                      = 1,     69,    65,    63,
>  parent_grid_ratio                   = 1,     3,     3,     3,
>  parent_time_step_ratio              = 1,     3,     3,     3,
>  feedback                            = 1,
>  smooth_option                       = 0,
>  /
>
>
>  &physics
>  mp_physics                          = 2,     2,     2,     2,
>  ra_lw_physics                       = 4,     4,     4,     4,
>  ra_sw_physics                       = 4,     4,     4,     4,
>  aer_opt                             = 2,
>  aer_aod550_opt                      = 1,     1,     1,     1,
>  aer_aod550_val                      = 0.12,  0.12,  0.12,  1.0,
>  sf_sfclay_physics                   = 1,     1,     1,     1,
>  sf_surface_physics                  = 2,     2,     2,     2,
>  bl_pbl_physics                      = 1,     1,     1,     1,
>  cu_physics                          = 1,     0,     0,     0,
>  radt                                = 27,    9,     3,     1,
>  bldt                                = 0,     0,     0,     0,
>  cudt                                = 5,     5,     5,     5,
>  isfflx                              = 1,
>  ifsnow                              = 0,
>  icloud                              = 1,
>  num_soil_layers                     = 4,
>  num_land_cat                        = 21,
>  sf_urban_physics                    = 1,     1,     1,     1,
>  slope_rad                           = 0,     0,     0,     1,
>  topo_shading                        = 0,     0,     0,     1,
>  topo_wind                           = 0,     0,     0,     0,
>  /
>
>
>  &fdda
>  /
>
>
>  &dynamics
>  w_damping                           = 0,
>  diff_opt                            = 1,     1,     1,     1,
>  km_opt                              = 4,     4,     4,     4,
>  diff_6th_opt                        = 0,     0,     0,     0,
>  diff_6th_factor                     = 0.12,  0.12,  0.12,  0.12,
>  base_temp                           = 290.,
>  damp_opt                            = 0,
>  zdamp                               = 5000., 5000., 5000., 5000.,
>  dampcoef                            = 0.2,   0.2,   0.2,   0.2,
>  khdif                               = 0,     0,     0,     0,
>  kvdif                               = 0,     0,     0,     0,
>  non_hydrostatic                     = .true.,.true.,.true.,.true.,
>  moist_adv_opt                       = 1,     1,     1,     1,
>  scalar_adv_opt                      = 1,     1,     1,     1,
>  /
>
>
>  &bdy_control
>  spec_bdy_width                      = 5,
>  spec_zone                           = 1,
>  relax_zone                          = 4,
>  specified                           = .true., .false.,.false.,.false.,
>  nested                              = .false., .true., .true.,.true.,
>  /
>
>
>  &grib2
>  /
>
>
>  &namelist_quilt
>  nio_tasks_per_group = 0,
>  nio_groups = 1,
>  /
>
>
> Cheers,
> Tian Yue
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