When I was running CCTM, CCTM prompted the following error: Is it my setup problem or the emission source problem?
modified aerospc em_fac
Value for CTM_PT3DEMIS: Y returning TRUE
Using in-line 3d point source emissions option
Value for IPVERT not defined; returning default: 0
Value for NPTGRPS: 1
Value for PT3DDIAG: N returning FALSE
Value for PT3DFRAC: N returning FALSE
Value for REP_LAYER_MIN not defined; returning default: -1
Value for LAYP_STDATE: 2016001
Value for LAYP_STTIME: 10000
Value for LAYP_NSTEPS: 470000

 Value for PROMPTFLAG:  F returning FALSE
 NOTE: The number of emission layers is      29 , and the maximum  
      possible layers is      29
 "STK_GRPS_01" opened as OLD:READ-ONLY   
 File name "/opt/CMAQv5.0.2/data/emis/"
 File type GRDDED3 
 Execution ID "mcip"
 Grid name "CMAQ Emissions"
 Dimensions: 80 rows, 90 cols, 1 lays, 16 vbles
 NetCDF ID:        26  opened as READONLY            
 Time-independent data.
 >>--->> WARNING in subroutine RDTFLAG
 Time step not available in file STK_GRPS_01      for variable XLOCA
 M3WARN:  DTBUF 1:00:00   Jan. 1, 2016  (2016001:010000)
 Could not read XLOCA from STK_GRPS_01
 >>--->> WARNING in subroutine PT3D_INIT on PE 000
 Could not initialize stack parameters
 M3WARN:  DTBUF 1:00:00   Jan. 1, 2016  (2016001:010000)

 *** ERROR ABORT in subroutine EMIS_INIT on PE 000       
 Failure initializing plume rise emissions module
 Date and time 1:00:00   Jan. 1, 2016   (2016001:010000)