Trajectory Model

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Why are there small differences in my trajectories when I run more than one at a time versus running just one trajectory

Last post by sonny.zinn « July 22nd, 2021, 11:24 am

by sonny.zinn » July 22nd, 2021, 11:24 am

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Last post by sonny.zinn
July 22nd, 2021, 11:24 am
I have been running trajectories every hour for 24 hours to get a general idea of the airmass origin a single point

Last post by sonny.zinn « July 22nd, 2021, 11:23 am

by sonny.zinn » July 22nd, 2021, 11:23 am

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Last post by sonny.zinn
July 22nd, 2021, 11:23 am
Is the effect of the boundary layer considered when the model computes the trajectory?

Last post by sonny.zinn « July 22nd, 2021, 11:23 am

by sonny.zinn » July 22nd, 2021, 11:23 am

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Last post by sonny.zinn
July 22nd, 2021, 11:23 am
Why are the back trajectories different if you calculate them jointly or separately?

Last post by sonny.zinn « July 22nd, 2021, 11:22 am

by sonny.zinn » July 22nd, 2021, 11:22 am

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Last post by sonny.zinn
July 22nd, 2021, 11:22 am
How does HYSPLIT consider the vertical coordinate. If a trajectory meets the surface how does HYSPLIT work?

Last post by sonny.zinn « July 22nd, 2021, 11:20 am

by sonny.zinn » July 22nd, 2021, 11:20 am

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Last post by sonny.zinn
July 22nd, 2021, 11:20 am
What are the levels of uncertainty associated with back trajectory calculations of ambient and potential temperature in

Last post by sonny.zinn « July 22nd, 2021, 11:19 am

by sonny.zinn » July 22nd, 2021, 11:19 am

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Last post by sonny.zinn
July 22nd, 2021, 11:19 am
What are the levels of uncertainty associated with back trajectory calculations in HYSPLIT?

Last post by sonny.zinn « July 22nd, 2021, 11:18 am

by sonny.zinn » July 22nd, 2021, 11:18 am

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Last post by sonny.zinn
July 22nd, 2021, 11:18 am
How do I estimate the absolute (in km) and relative (%) errors when using the Hysplit4 trajectory model? Where does the

Last post by sonny.zinn « July 22nd, 2021, 11:16 am

by sonny.zinn » July 22nd, 2021, 11:16 am

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Last post by sonny.zinn
July 22nd, 2021, 11:16 am
How many trajectories can I draw in the same plot when I enter different names in trajectory Display GUI using a +

Last post by sonny.zinn « July 22nd, 2021, 11:15 am

by sonny.zinn » July 22nd, 2021, 11:15 am

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Last post by sonny.zinn
July 22nd, 2021, 11:15 am
Is it possible to overlay several trajectories onto one map?

Last post by sonny.zinn « July 22nd, 2021, 11:14 am

by sonny.zinn » July 22nd, 2021, 11:14 am

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Last post by sonny.zinn
July 22nd, 2021, 11:14 am
Could tell us how the precipitation rates are determined which accompany the air parcel trajectories in the tdump file?

Last post by sonny.zinn « July 22nd, 2021, 11:11 am

by sonny.zinn » July 22nd, 2021, 11:11 am

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Last post by sonny.zinn
July 22nd, 2021, 11:11 am
When I ran a foward trajectory from a location on a previously computed backward trajectory, I did not return to

Last post by sonny.zinn « July 22nd, 2021, 11:06 am

by sonny.zinn » July 22nd, 2021, 11:06 am

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Last post by sonny.zinn
July 22nd, 2021, 11:06 am
I am trying to do trajectory analysis for an event in which we have observed meteorological data. Is it possible to down

Last post by sonny.zinn « July 22nd, 2021, 11:05 am

by sonny.zinn » July 22nd, 2021, 11:05 am

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Last post by sonny.zinn
July 22nd, 2021, 11:05 am
After calculating backward isobaric trajectories I see that the pressure is not constant and looking at the vertical mot

Last post by sonny.zinn « July 22nd, 2021, 11:03 am

by sonny.zinn » July 22nd, 2021, 11:03 am

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Last post by sonny.zinn
July 22nd, 2021, 11:03 am
After calculating backward isentropic trajectories on the PC and looking at the plot, particularly the vertical motion p

Last post by sonny.zinn « July 22nd, 2021, 11:03 am

by sonny.zinn » July 22nd, 2021, 11:03 am

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Last post by sonny.zinn
July 22nd, 2021, 11:03 am
Is the time used to calculate trajectories UTC or local time?

Last post by sonny.zinn « July 22nd, 2021, 10:57 am

by sonny.zinn » July 22nd, 2021, 10:57 am

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Last post by sonny.zinn
July 22nd, 2021, 10:57 am
Is there a way to run multiple trajectories with a single command in hysplit?

Last post by sonny.zinn « July 22nd, 2021, 10:56 am

by sonny.zinn » July 22nd, 2021, 10:56 am

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Last post by sonny.zinn
July 22nd, 2021, 10:56 am
Is there a batch job that can be submitted to the server to obtain 10-d back-trajectories for the time period specified?

Last post by sonny.zinn « July 22nd, 2021, 10:54 am

by sonny.zinn » July 22nd, 2021, 10:54 am

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Last post by sonny.zinn
July 22nd, 2021, 10:54 am
Can I run 1 trajectory every 6 hours every day for an extended period of time?

Last post by sonny.zinn « July 22nd, 2021, 10:51 am

by sonny.zinn » July 22nd, 2021, 10:51 am

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Last post by sonny.zinn
July 22nd, 2021, 10:51 am
Is terrain included in the Hysplit model and how accurate are surface trajectories computed for complex terrain?

Last post by sonny.zinn « July 22nd, 2021, 10:43 am

by sonny.zinn » July 22nd, 2021, 10:43 am

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Last post by sonny.zinn
July 22nd, 2021, 10:43 am
What would be the most accurate way to determine back trajectories (BT) for airmass sources at a particular field site.

Last post by sonny.zinn « July 22nd, 2021, 10:41 am

by sonny.zinn » July 22nd, 2021, 10:41 am

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Last post by sonny.zinn
July 22nd, 2021, 10:41 am
I’m interested in the backward trajectories at the costal site Baia Terra Nova, Antarctica, for aerosol studying. As in

Last post by sonny.zinn « July 22nd, 2021, 10:38 am

by sonny.zinn » July 22nd, 2021, 10:38 am

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Last post by sonny.zinn
July 22nd, 2021, 10:38 am
I am attempting to calculate back trajectories for event based precipitation samples to trace sources of atmospheric pol

Last post by sonny.zinn « July 22nd, 2021, 10:35 am

by sonny.zinn » July 22nd, 2021, 10:35 am

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Last post by sonny.zinn
July 22nd, 2021, 10:35 am
When I get backward trajectories starting at a rural East Coast site in NJ, which starting height(s) do you suggest is (

Last post by sonny.zinn « July 22nd, 2021, 10:33 am

by sonny.zinn » July 22nd, 2021, 10:33 am

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Last post by sonny.zinn
July 22nd, 2021, 10:33 am
I have a question regarding what start height to make the trajectories and the correction factor for MAGL…

Last post by sonny.zinn « July 22nd, 2021, 10:29 am

by sonny.zinn » July 22nd, 2021, 10:29 am

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Last post by sonny.zinn
July 22nd, 2021, 10:29 am

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