how wrf_chem model understand missing value?(-9999.0) or NAN in wrfchemistry files as it's input file?

Question

Could you guide me, please?
I have made wrfchemistry files for the wrf_chem model as input files. some of my data has a missing value(-9999.0) in wrfchemistry file(wrfchemi_d01_2010-07-16_12:00:00).

here is the link of my file.

My question is, how to determine the missing value in the wrfchemistry file so that it is understandable for the WRF_Chem model. has my wrfchemi file true attribute:

dimensions:
        Time = 1 ;
        DateStrLen = 19 ;
        south_north = 124 ;
        west_east = 173 ;
        emissions_zdim = 1 ;
variables:
        char Times(Time, DateStrLen) ;
        double E_CO2(Time, emissions_zdim, south_north, west_east) ;
                E_CO2:FieldType = 104. ;
                E_CO2:MemoryOrder = "XYZ" ;
                E_CO2:units = "mol km^-2 hr^-1" ;
                E_CO2:stagger = "" ;
                **E_CO2:missing_value = "-9999.f" ;
                E_CO2:FillValue = "-9999.f" ;
                E_CO2:coordinates = "XLONG XLAT" ;**

shall I fill the variables in the wrfchemistry file(wrfchemi_d01_2010-07-16_12:00:00) with NAN or -9999.0?

Answer 1

等待大神答复