use ncl in wrf-chem model

hello

i want use ncl in wrf-chem model

i have a question, the dimensions of the output is like this:

float PM2_5_DRY(Time, bottom_top, south_north, west_east) ;
    PM2_5_DRY:FieldType = 104 ;
    PM2_5_DRY:MemoryOrder = "XYZ" ;
    PM2_5_DRY:description = "pm2.5 aerosol dry mass" ;
    PM2_5_DRY:units = "ug m^-3" ;
    PM2_5_DRY:stagger = "" ;
    PM2_5_DRY:coordinates = "XLONG XLAT" ;

if i want to know the data of PM2_5_DRY of one point (for example the location of the point at 38.87N 115.51E) of different time to draw a xy plot, how can i do it? how can i match the longitude and latitude to the south_north, west_east of model out?

in the namelis.input of WPS of the model, i have set like this:
 
 e_we = 83,
 e_sn = 65,
 map_proj = 'lambert',
 ref_lat = 35.00,
 ref_lon = 110.00,
 truelat1 = 30.0,
 truelat2 = 60.0,
 stand_lon = 110.0,

thanks a lot
 
2009-12-11

bluemine

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Received on Thu Dec 10 19:07:19 2009