I am running 120 hour back-trajectories using (concatenated) NARR meteorological data on the GUI. Using the daily run tool, I hope to run 10 years of back-trajectories at one location at 6-hour intervals.
However, each back-trajectory calculation takes a significant amount of time, generally 2-3 minutes, making this total run time-prohibitive (with the total run taking an estimated 15-20 days).
Is this run-time typical for this sort of HYSPLIT back-trajectory calculation? And if so, I assume it’s just a matter of finding a machine with more memory? I am using a 2017 MacBook Air with 8 GB of RAM, if that’s relevant.
It does seem like the run-time is pretty unpredictable, with back-trajectory calculations sometimes taking only a few seconds each, or other times taking >5 minutes. Often the program will freeze and give the Mac spinning “beach-ball” for a few minutes, delaying the results. Leaving HYSPLIT running over-night doesn’t seem to improve the calculation speed.
Any help would be much appreciated.
Back-trajectory calculations taking significant time
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- ↳ 5. Trajectory options
- ↳ 6. Trajectory statistics
- ↳ 7. Air concentration calculations
- ↳ 8. Configuring the CAPTEX simulation
- ↳ 9. Air concentration parameter sensitivity
- ↳ 10. Alternate display options
- ↳ 11. Pollutant transformations and deposition
- ↳ 12. Air concentration uncertainty
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- ↳ 15. Radioactive pollutants and dose
- ↳ 16. Volcanic eruptions with gravitational settling
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