[Wrf-users] wrfout issue when using restart

Tardif, Elliot M elliot.tardif at ncdenr.gov
Fri Sep 21 13:13:27 MDT 2012


Good afternoon,

We are currently running WRFv3.4.1 in parallel, restarting every 12 hours for real-time forecasting purposes.  We have run earlier versions of WRF in parallel, using restart and not had an issue.  However, since running WRFv3.4.1 we have noticed a peculiar issue with the wrfout* files: after each restart, the wrfout files are all shifted forward one hour.  The following is a list of the parent domain wrfout files, which illustrates this problem.  Below this list, I have included a namelist.input file used in our WRF run.  What is causing this issue, and how can it be fixed?

/opt/storage/high-speed/Models/met/WRFv3.41-ifc_RT/WRFV3/test/em_real > ls wrfout_d01*
wrfout_d01_2012-09-21_12:00:00  wrfout_d01_2012-09-24_01:00:00
wrfout_d01_2012-09-21_15:00:00  wrfout_d01_2012-09-24_04:00:00
wrfout_d01_2012-09-21_18:00:00  wrfout_d01_2012-09-24_07:00:00
wrfout_d01_2012-09-21_21:00:00  wrfout_d01_2012-09-24_10:00:00
wrfout_d01_2012-09-22_00:00:00  wrfout_d01_2012-09-24_13:00:00
wrfout_d01_2012-09-22_01:00:00  wrfout_d01_2012-09-24_16:00:00
wrfout_d01_2012-09-22_04:00:00  wrfout_d01_2012-09-24_19:00:00
wrfout_d01_2012-09-22_07:00:00  wrfout_d01_2012-09-24_22:00:00
wrfout_d01_2012-09-22_10:00:00  wrfout_d01_2012-09-25_01:00:00
wrfout_d01_2012-09-22_13:00:00  wrfout_d01_2012-09-25_04:00:00
wrfout_d01_2012-09-22_16:00:00  wrfout_d01_2012-09-25_07:00:00
wrfout_d01_2012-09-22_19:00:00  wrfout_d01_2012-09-25_10:00:00
wrfout_d01_2012-09-22_22:00:00  wrfout_d01_2012-09-25_13:00:00
wrfout_d01_2012-09-23_01:00:00  wrfout_d01_2012-09-25_16:00:00
wrfout_d01_2012-09-23_04:00:00  wrfout_d01_2012-09-25_19:00:00
wrfout_d01_2012-09-23_07:00:00  wrfout_d01_2012-09-25_22:00:00
wrfout_d01_2012-09-23_10:00:00  wrfout_d01_2012-09-26_01:00:00
wrfout_d01_2012-09-23_13:00:00  wrfout_d01_2012-09-26_04:00:00
wrfout_d01_2012-09-23_16:00:00  wrfout_d01_2012-09-26_07:00:00
wrfout_d01_2012-09-23_19:00:00  wrfout_d01_2012-09-26_10:00:00
wrfout_d01_2012-09-23_22:00:00

Here is the namelist.input for the most recent run:

&time_control
 run_days                            = 0,
 run_hours                           = 36,
 run_minutes                         = 0,
 run_seconds                         = 0,
 start_year                          = 2012, 2012, 2000,
 start_month                         = 09,   09,   01,
 start_day                           = 25,   25,   24,
 start_hour                          = 00,   00,   12,
 start_minute                        = 00,   00,   00,
 start_second                        = 00,   00,   00,
 end_year                            = 2012, 2012, 2000,
 end_month                           = 09,   09,   01,
 end_day                             = 26,   25,   25,
 end_hour                            = 12,   00,   12,
 end_minute                          = 00,   00,   00,
 end_second                          = 00,   00,   00,
 interval_seconds                    = 21600
 input_from_file                     = .true.,.true.,.true.,
 history_interval                    = 60,  60,   60,
 frames_per_outfile                  = 3,   3,    1000,
 restart                             = .true.,
 restart_interval                    = 720,
 io_form_history                     = 2
 io_form_restart                     = 2
 io_form_input                       = 2
 io_form_boundary                    = 2
 debug_level                         = 0
 iofields_filename                   = "iofield_list.txt","iofield_list.txt"
 /

 &domains
 time_step                           = 150,
 time_step_fract_num                 = 0,
 time_step_fract_den                 = 1,
 max_dom                             = 2,
 s_we                                = 1,     1,
 e_we                                = 165,   244,    94,
 s_sn                                = 1,     1,
 e_sn                                = 129,   226,    91,
 s_vert                              = 1,     1,
 e_vert                              = 38,    38,     38,
 p_top_requested                     = 10000,
 num_metgrid_levels                  = 27,
 num_metgrid_soil_levels             = 4,
 eta_levels                          = 1.0000, 0.9974, 0.9940, 0.9900,
                                       0.9854, 0.9796, 0.9723, 0.9635,
                                       0.9528, 0.9401, 0.9252, 0.9079,
                                       0.8882, 0.8659, 0.8410, 0.8133,
                                       0.7828, 0.7494, 0.7133, 0.6742,
                                       0.6323, 0.5878, 0.5406, 0.4915,
                                       0.4409, 0.3895, 0.3379, 0.2871,
                                       0.2378, 0.1907, 0.1465, 0.1056,
                                       0.0682, 0.0332, 0.0000
 eta_levels                          = 1.00, 0.995, 0.99,
                                       0.985, 0.98,0.975, 0.97,
                                       0.96,  0.95, 0.94, 0.93,
                                       0.92, 0.91, 0.90, 0.88,
                                       0.86, 0.84, 0.82, 0.80,
                                       0.77, 0.74, 0.70, 0.65,
                                       0.60, 0.55, 0.50, 0.45,
                                       0.41, 0.37, 0.33, 0.29,
                                       0.25, 0.21, 0.16, 0.12,
                                       0.08, 0.04, 0.00
 dx                                  = 36000, 12000,  3333.33,
 dy                                  = 36000, 12000,  3333.33,
 grid_id                             = 1,     2,     3,
 parent_id                           = 0,     1,     2,
 i_parent_start                      = 1,     68,    30,
 j_parent_start                      = 1,     19,    30,
 parent_grid_ratio                   = 1,     3,     3,
 parent_time_step_ratio              = 1,     3,     3,
 feedback                            = 1,
 smooth_option                       = 0,
 use_adaptive_time_step              = .true.,
 step_to_output_time                 = .true.,
 target_cfl                          = 1.1, 1.1, 1.2,
 target_hcfl                         = 0.84, 0.84, 0.84,
 max_step_increase_pct               = 5,   51,  51,
 starting_time_step                  = 150,  -1,  -1,
 max_time_step                       = 240,  -1,  40,
 min_time_step                       =  -1,  -1, 10,
 /

 &physics
 mp_physics                          = 6,    6,     3,
 ra_lw_physics                       = 1,     1,     1,
 ra_sw_physics                       = 1,     1,     1,
 radt                                = 30,    30,    30,
 sf_sfclay_physics                   = 7,     7,     1,
 sf_surface_physics                  = 7,     7,     2,
 bl_pbl_physics                      = 7,     7,     1,
 bldt                                = 0,     0,     0,
 cu_physics                          = 1,     1,     0,
 cudt                                = 5,     5,     5,
 isfflx                              = 1,
 ifsnow                              = 1,
 icloud                              = 1,
 surface_input_source                = 1,
 num_soil_layers                     = 2,
 pxlsm_smois_init                    = 0, 0
 sf_urban_physics                    = 0,
 maxiens                             = 1,
 maxens                              = 3,
 maxens2                             = 3,
 maxens3                             = 16,
 ensdim                              = 144,
 slope_rad                           = 1,
 topo_shading                        = 1,
 shadlen                             = 25000.,
 /

 &fdda
 /

 &dynamics
 w_damping                           = 1,
 diff_opt                            = 1,
 km_opt                              = 4,
 diff_6th_opt                        = 2,      2,      0,
 diff_6th_factor                     = 0.12,   0.12,   0.12,
 base_temp                           = 290.
 damp_opt                            = 3,
 zdamp                               = 5000.,  5000.,  5000.,
 dampcoef                            = 0.2,   0.2,   0.2
 khdif                               = 0,      0,      0,
 kvdif                               = 0,      0,      0,
 non_hydrostatic                     = .true., .true., .true.,
 moist_adv_opt                       = 2,      2,      1,
 scalar_adv_opt                      = 2,      2,      1,
 gwd_opt                             = 1,
 /

 &bdy_control
 spec_bdy_width                      = 5,
 spec_zone                           = 1,
 relax_zone                          = 4,
 specified                           = .true., .false.,.false.,
 nested                              = .false., .true., .true.,
 /

 &grib2
 /

 &namelist_quilt
 nio_tasks_per_group = 0,
 nio_groups = 1,
 /

Thanks for your time,

Elliot Tardif, Meteorologist II
NC DENR, Division of Air Quality
Planning Section, Attainment Planning Branch
1641 Mail Service Center
Raleigh, NC 27699-1641
Email:  Elliot.Tardif at ncdenr.gov<mailto:Nick.Witcraft at ncdenr.gov>
Web  :  http://www.ncair.org<http://www.ncair.org/>

Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statue or other regulation.

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