Running COMP_TIME


The following steps are needed to run COMP_TIME - the executable that combine orbital gridded files into global daily fields.

---

1. Run one or more orbits through CLAVRXORB and produce orbital gridded files (*.cell.hdf).

---

2.  Create a comp_time_input file to hold the names of files to process and input/output paths.

COMP_TIME looks for files to process from the list and paths contained in the comp_time_input file.  An example is listed below.

Line 1 is the directory housing the orbital cell files
Line 2 is the directory that will contain the output composited synoptic cell files
Line 3 is the year of the desired daily fields
Line 4 is the Julian day of the desired daily fields
Line 5 is the central UTC time for the composite
Line 6 is the size of the time window in hours surrounding the central time for compositing
Line 7 is the expected grid resolution (obsolate but included based on OSDPD request)
Line 8 is the expected grid format (obsolete but included based on OSDPD request)
Line 9-XX are the names of the orbital files to process 

Here is an example
/data4/patmosx/2003/orbital/
/data4/patmosx/2003/synoptics/
2003
190
18
1.5
0.5
0
NSS.GHRR.NL.D03189.S2320.E0059.B1439798.GC.cell.hdf 
NSS.GHRR.NL.D03190.S0054.E0248.B1439899.WI.cell.hdf

---

3. Additional Comments

• comp_time will take the global attributes from the first file and apply them to final file.  It will look for conflicts.  Therefore, the grid format and resolution of the first orbital file read in, determines the value assumed for the final time-composited synoptic file.  Orbital files that do not conform are rejected.
• Unlike comp_asc_des, comp_time will handle files for more than one satellite.

---

4. Running COMP_TIME

To run COMP_TIME, simple run the executable (comp_time) in the $CLAVRX_HOME directory.  COMP_TIME will read the comp_time_input file and  take the appropriate actions.  Currently, there are no command line arguments.