Trajectories for the Discoverer Seattle-Hobart transit

The 00Z and 12Z daily 9-day backtrajectories are designed to aid in the analysis of data from the Discoverer Seattle-Hobart transit (of 13 Oct 1995 through 10 Nov 1995). The backtrajectories were calculated with the NOAA HYSPLIT 3.2 code using the NMC Global Data Assimilation System Medium Range Forecast model (MRF).  All trajectories originate at eht ship and have a source altitude of 100m and averaging period of 24h.  

The data from each trajectoriy are contained in three files.   One ("mmddhh.gif")is a simple gif image file showing the horizontal and vertical backtrajectories.  The "00" marker on the horizontal plot represents the air parcel position at 00Z.  The gif files for the entire transit are listed separately and in the file "trajgifs.zip".  Two additional ASCII files ("mmddhh.cfg" and "mmddhh.asc") exist for each trajectory.  The files contain the latitude, longitude and pressure points used to construct the gif files.  There are also several other HYSPLIT parameters in these files that may be of benefit to those familiar with the HYSPLIT program.

Examples:
The origin position at 00Z Nov10 could be found in the last line of the file "111000.cfg" :

..\GRAPHIC\
    33    28     6    11    10     0
    381.0000    -60.0000     32.0000     17.0000     80.0000           3
    10.0  -162.6    49.0   -32.1     7.6  -43.02 -147.42   -100.
                                             lat    lon

All other backtrajectory data could be found in the file "111000.asc":

95110900-38.31-134.27 2349  451  990   11   24    0    1   .100000E+01
95110800-35.61-129.60 2408  306 1001   10   48    0    1   .100000E+01
95110700-34.25-134.13 2274  334  984   11   72    0    1   .100000E+01
95110600-36.79-137.25 2254  456  984   11   96    0    1   .100000E+01
95110500-42.06-146.90 2187  752  973   12  120    0    1   .100000E+01
95110400-46.99-149.72 2262  905  962   13  144    0    1   .100000E+01
95110300-51.60-143.36 2454  910  943   14  168    0    1   .100000E+01
95110200-52.69-131.41 2651  801  955   13  192    0    1   .100000E+01
95110100-48.94-116.20 2874  578  959   13  216    0    1   .100000E+01
yymmddhh  lat   lon     -    -   press  -   -     -    -    - 

If you have any questions about these files, please contact Vladimir Kapustin at kapustin@pmel.noaa.gov.