[Wrf-users] cannot find category "1" in USGS categories in landuse_30s in a large region

[dyjbean at hotmail.com]

hi,
  i have met a problem when i used the USGS category with landuse_30s in WPS.
  i use the different WRF veriosn to verify this apperance such wrf3.7,wrf3.6.1,wrf3.5.1,wrf3.4, etc.
 my namelist.wps is as following:
  &share
 wrf_core = 'ARW',
 max_dom = 1,
 start_date = '2012-07-19_00:00:00',
 end_date   = '2012-07-23_00:00:00',
 interval_seconds = 21600,
 io_form_geogrid = 2,
 debug_level = 0,
/

&geogrid
  parent_id         = 1,
 parent_grid_ratio = 1,
 i_parent_start    = 1,
 j_parent_start    = 1,
 e_we          = 100,
 e_sn          = 71,
 geog_data_res = '30s',
 dx = 0.839918,
 dy = 0.761315,
 map_proj =  'lat-lon',
 ref_lat   = 38.805,
 ref_lon   = 100.328,
 truelat1  = 38.805,
 truelat2  = 38.805,
 stand_lon = 100.328,
 geog_data_path = '/d1/workspace/geodata',
 ref_x =50.0 ,
 ref_y =35.0 ,
/

&ungrib
 out_format = 'WPS',
 prefix = 'FILE',
/

&metgrid
 fg_name = 'FILE',
 io_form_metgrid = 2,
/

&mod_levs
 press_pa = 201300,200100,100000,
             95000, 90000,
             85000, 80000,
             75000, 70000,
             65000, 60000,
             55000, 50000,
             45000, 40000,
             35000, 30000,
             25000, 20000,
             15000, 10000,
              5000,  1000
 /

after i have obtained met_em*, i checked it in NCL, but i cannot find the urban category in LU_INDEX as follows:
ncl 0> ff=addfile("met_em.d01.2012-07-21_12:00:00.nc","r")
ncl 1> lu=ff->LU_INDEX(0,:,:)
ncl 2> print(min(lu)+" "+max(lu))
(0)     2 24

  because my region definition is around China, the "1" must be included in the landuse, i checked the other WRF version, the same
result showed as the above.

any advice would be appreciated for this problem.

thanks




dyjbean at hotmail.com
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