Query regarding the usage of Hysplit to generate back trajectory data for analysis

[gokulbalagopal]

Please ask your question about openair. This could be about how to properly use openair functions, interpret plots, or something else entirely.

Before you submit your issue, it may be useful to check through the openair book just to make sure your question hasn't already been answered!

Feel free to delete these instructions before you submit your issue.

---

Your question, with example code/reprex if appropriate.

[gokulbalagopal]

Hi, I am having some issue with the hysplit function. I downloaded the run_hysplit.R code, installed the hysplit software for windows. I gave the path to my trajData (input data) and also the path to store the output file. The trajData, I am using is the "gdas1.jan23.w5". When I run the code, the data_out variable is empty and I am not getting any errors. I have attached the pics to my hysplit exec directory , trajData directory and the comments after the code is ran. The code is given below:

library(devtools) source_gist("https://gist.github.com/davidcarslaw/c67e33a04ff6e1be0cd7357796e4bdf5", filename = "run_hysplit.R") library(run_hysplit) data_out <- run_hysplit( latitude = 36.134, longitude = -5.347, interval = "3 hour", runtime = -96, start_height = 10, model_height = 10000, start = "2023-01-29", end = "2023-01-31", hysplit_exec = "C://hysplit//exec", hysplit_input = "C://Users//usr_name//OneDrive//Documents//trajData", hysplit_output = "C://Users//usr_name//OneDrive//Documents//temp", site = "gibraltar")

I am new to hysplit trajectory analysis, so please kindly my naïve mistakes and let me know how I can undo them.
Thanks,
Gokul

[masabhathini]

Hi Gokul,

hysplit_input = "C://Users//usr_name//OneDrive//Documents//trajData"
Pls, check. Have you changed your directory path ?
Regards,
M. Sateesh

[gokulbalagopal]

@masabhathini , I didn't want to display my user name in here, that's why I gave it as usr_name. I am not getting any path error
Thanks,
Gokul

[gokulbalagopal]

If any one could help me with this, it would be really appreciated

[Harriet723]

Hi, I am having some issue with the hysplit function. I downloaded the run_hysplit.R code, installed the hysplit software for windows. I gave the path to my trajData (input data) and also the path to store the output file. The trajData, I am using is the "gdas1.jan23.w5". When I run the code, the data_out variable is empty and I am not getting any errors. I have attached the pics to my hysplit exec directory , trajData directory and the comments after the code is ran. The code is given below:

library(devtools) source_gist("https://gist.github.com/davidcarslaw/c67e33a04ff6e1be0cd7357796e4bdf5", filename = "run_hysplit.R") library(run_hysplit) data_out <- run_hysplit( latitude = 36.134, longitude = -5.347, interval = "3 hour", runtime = -96, start_height = 10, model_height = 10000, start = "2023-01-29", end = "2023-01-31", hysplit_exec = "C://hysplit//exec", hysplit_input = "C://Users//usr_name//OneDrive//Documents//trajData", hysplit_output = "C://Users//usr_name//OneDrive//Documents//temp", site = "gibraltar")

I am new to hysplit trajectory analysis, so please kindly my naïve mistakes and let me know how I can undo them. Thanks, Gokul

Hi, have you solved this problem yet, I'm having the same problem as you, can I ask how you solved it? Thank you in advance.

[gokulbalagopal]

Hi Harriet723, sorry for the delayed response. I started using Pysplit package for my analysis