[Wrf-users] OBSGRID v3.7 vs. 3.4.0

[Bart Brashers]

I recently downloaded and compiled OBSGRIDv3.7, switching from v3.4.0.  I'm re-using the same namelist.oa I had previously used for another iteration of the same project - no changes to the namelist.oa, included below.



Inputs are MADIS data, processed with MADIS2LITTLER_v1.0 (2013-10-30). There is a newer version (v1.2, 2014-06-12) but I have not re-processed the OBS with this version.



OBSGRID.EXE runs fine, but in the resulting OBS_DOMAIN??? files, each block of soundings is repeated. The first block looks like normal, but the 2nd sounding (with the same time stamp) is filled with the bad_value flag, -888888.000.  That is, ALL the values are marked as missing.



WRF of course dies, with the error:



# tail -7 rsl.error.0000
2 OBS ARE NOT IN CHRONOLOGICAL ORDER
NEW YEAR?
 timeob,rtlast,n=    0.000000       0.5000000              186
-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE:  wrf_fddaobs_in.b  LINE:    1103
wrf_fddaobs_in: in4dob STOP 111
-------------------------------------------

Is this a bug in OBSGRIDv3.7? Or do I need to do something new with the namelist.oa?  All help is greatly appreciated.



Thanks,



Bart Brashers



Here's a sample namelist.oa:



&record1
 start_year                  =  2010
 start_month                 =  08
 start_day                   =  03
 start_hour                  =  12
 end_year                    =  2010
 end_month                   =  08
 end_day                     =  09
 end_hour                    =  00
 interval                    = 21600
/

&record2
 grid_id                     = 3
 obs_filename                = '../../../OBS/madis/little_r/OBS'
 remove_data_above_qc_flag   = 32768
/
 remove_unverified_data      = .TRUE.
 trim_domain                 = .FALSE.
 trim_value                  = 5

&record3
 max_number_of_obs           = 999999
 fatal_if_exceed_max_obs     = .TRUE.
/

&record4
 qc_test_error_max           = .TRUE.
 qc_test_buddy               = .TRUE.
 qc_test_vert_consistency    = .FALSE.
 qc_test_convective_adj      = .FALSE.
 max_error_t                 = 15
 max_error_uv                = 13
 max_error_z                 = 8
 max_error_rh                = 50
 max_error_p                 = 600
 max_buddy_t                 = 16
 max_buddy_uv                = 8
 max_buddy_z                 = 8
 max_buddy_rh                = 40
 max_buddy_p                 = 800
 buddy_weight                = 1.0
 max_p_extend_t              = 1300
 max_p_extend_w              = 1300
/

&record5
 print_obs_files             = .TRUE.
 print_found_obs             = .FALSE.
 print_header                = .FALSE.
 print_analysis              = .FALSE.
 print_qc_vert               = .FALSE.
 print_qc_dry                = .FALSE.
 print_error_max             = .FALSE.
 print_buddy                 = .FALSE.
 print_oa                    = .FALSE.
/

&record7
 use_first_guess             = .TRUE.
 f4d                         = .TRUE.
 intf4d                      =  3600
 lagtem                      = .FALSE.
/

&record8
 smooth_type                 =  1
 smooth_sfc_wind             =  0
 smooth_sfc_temp             =  1
 smooth_sfc_rh               =  0
 smooth_sfc_slp              =  0
 smooth_upper_wind           =  0
 smooth_upper_temp           =  0
 smooth_upper_rh             =  1
/

&record9
 oa_type                     = 'MQD'
 oa_3D_option                = 1
 radius_influence            = 0
 mqd_minimum_num_obs         = 30
 mqd_maximum_num_obs         = 1000
 oa_min_switch               = .TRUE.
 oa_max_switch               = .TRUE.
/

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