[gembud] gptraj crashes along prime meridian

• To: <gembud@xxxxxxxxxxxxxxxx>
• Subject: [gembud] gptraj crashes along prime meridian
• From: "Robert Mullenax" <Robert.Mullenax@xxxxxxxxxxxxx>
• Date: Tue, 17 Dec 2013 10:44:35 -0600

I am using gptraj to run some trajectories and the program is crashing around 
the prime meridian. It does it intermittently with GFS forecast data, but with 
an ECMWF reanalysis file it does it constantly. Has anyone seen this with 
gptraj or other GEMPAK programs? Is there a workaround?


GPMAP PARAMETERS:

 Device:              XW                                                        
                                                                      
 Projection:          MER                                                       
                                                                      
 Graphics area name:  45;-120;88;30                                             
                                                                      
 Map:                 1                                                         
                                                                      
 Title:               1                                                         
                                                                      
 Panel:               0                                                         
                                                                      
 Latlon:                                                                        
                                                                      
 Grid time range:     090802/0000f000-090804/0000f000                           
                                                                      
 Grid file:           out.gem                                                   
                                                                      
 Grid Vector:         WND                                                       
                                                                      
 Grid level:          7                                                         
                                                                      
 Vertical Coordinate: pres                                                      
                                                                      
 Back Trajectory:     NO 
 Time Step:                                                                     
                                                                      
 Clear:               YES
Enter <cr> to accept parameters or type EXIT:
start/stop/nmin 
 090802/0000V000     090802/0600V000       360
 start/stop/nmin 090802/0600V000     090802/1200V000       360
 start/stop/nmin 090802/1200V000     090802/1800V000       360
 start/stop/nmin 090802/1800V000     090803/0000V000       360
 start/stop/nmin 090803/0000V000     090803/0600V000       360
 [GR -12]  Input 69.49829;-0.02051 for grid point is invalid.
 start/stop/nmin 090803/0600V000     090803/1200V000       360
 start/stop/nmin 090803/1200V000     090803/1800V000       360
 start/stop/nmin 090803/1800V000     090804/0000V000       360
Start Location: esnq                 Terminated location  69.49829;-0.02051   
 Parameters requested: MAP,GAREA,PROJ,SATFIL,RADFIL,LUTFIL,IMCBAR,LATLON,
 PANEL,TITLE,TEXT,CLEAR,DEVICE,GDFILE,GVECT,GPOINT,GLEVEL,GVCORD,GDATTIM,
 TSTEP,MARKER,LINE,RTRAJ.
 GEMPAK-GPTRAJ>


Thanks,
Robert Mullenax
CSBF Meteorology