[Question]: No data generated after run_hysplit

[morshedahmed17]

I was able to run the run_hysplit function without any error. However, no data is generated in data_output.

[Harriet723]

Hi, did you solve this problem, I had the same problem as you, can I ask how you solved it?Thanks in advance!

[jack-davison]

Hello,

Apologies for the delay - is this issue still persisting?

If so, please provide your code so I can copy it to my machine. You can format it nicely by surrounding it with backticks, i.e.,

```
your_code_here()
```

Cheers,
Jack

[djb561]

Hi, I am having the same issue. The code is running without error, but the data_out is empty.

getMet <- function(year = 2013, month = 1,
                   path_met = "~/TrajData") {
  for (i in seq_along(year)) {
    for (j in seq_along(month)) {
      download.file(
        url = paste0(
          "https://www.ready.noaa.gov/data/archives/reanalysis/RP",
          year[i], sprintf("%02d", month[j]), ".gbl"
        ),
        destfile = paste0(
          path_met, "RP", year[i],
          sprintf("%02d", month[j]), ".gbl"
        ),
        mode = "wb"
      )
    }
  }
}

getMet(year = 2013, month = 1:12)

library(devtools)
source_gist("https://gist.github.com/davidcarslaw/c67e33a04ff6e1be0cd7357796e4bdf5",
            filename = "run_hysplit.R")


data_out <- run_hysplit(
  latitude = 36.134, 
  longitude = -5.347, 
  runtime = -96, 
  start_height = 10, 
  model_height = 10000, 
  start = 2013,
  end = "2013-01-10",
  hysplit_exec = "~/hysplit/exec", 
  hysplit_input = "~/TrajData", 
  hysplit_output = "~/temp",
  site = "gibraltar")

[davidcarslaw]

Hi Dan

I confirm this is not working but the data is on the server and can be downloaded manually. I'm at home today and I think my router has trouble with IPv6, so this works for me (on a Mac), but I need to investigate more deeply.

download.file("https://www.ready.noaa.gov/data/archives/reanalysis/RP202401.gbl", destfile = "~/Downloads/RP202401.gbl", method = "wget", extra = "--inet4-only")

[djb561]

Hi David,

Thanks for your response. I was able to successfully download the data, however when I run HYSPLIT, my output is empty.

[davidcarslaw]

How are you trying to run Hysplit i.e. what year, receptor etc. and is that by using the gist in the openair manual? Separately, It would be interesting to know what you are using the trajectories for - I may have already run a lot of what you might need.

David

ps. feel free to follow up on the York email address