[Note that the question and the answer below are recreated from a HYSPLIT FAQ site that predates this forum site. The original posting date is unknown.]
Meteorological model output fields are interpolated to terrain following coordinate system. Resolution is the same as the native coordinate system. Your local terrain will not match model terrain, which is much smoother. In very complex terrain the model is probably not very accurate unless local wind flow is being driven by the large-scale synoptic conditions — strong winds.
Roland Draxler
Is terrain included in the Hysplit model and how accurate are surface trajectories computed for complex terrain?
Topics about the HYSPLIT trajectory model.
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- ↳ 2. Testing the installation
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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
- ↳ 13. Source attribution methods
- ↳ 14. Wildfire smoke and dust storms
- ↳ 15. Radioactive pollutants and dose
- ↳ 16. Volcanic eruptions with gravitational settling
- ↳ 17. Custom simulations
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