Search found 31 matches

by Smaug
July 25th, 2018, 7:06 am
Forum: Dispersion Model
Topic: Grid Resolution
Replies: 1
Views: 402

Grid Resolution

Hello, I am looking at how the output grid resolution affects HYSPLIT performance using measured data. I am quantifying the performance using statistical metrics. It seems that there is no general rule for what output grid resolution should be used. Using a higher resolution (even with more particle...
by Smaug
June 14th, 2018, 10:39 am
Forum: Dispersion Model
Topic: Dilution Factors
Replies: 1
Views: 628

Dilution Factors

To ensure that model outputs are giving dispersion factors you need to have a release rate of 1(1/hr) for an hour release. For a 2 hour release can you just change the release duration to 2 hours or do also have to half the release rate so it is 0.5? I guess the question also asks if you have to hav...
by Smaug
May 31st, 2018, 6:00 am
Forum: Repositories of HYSPLIT formatted data
Topic: NCEP/NCAR Reanalysis Data Archive
Replies: 1
Views: 1114

NCEP/NCAR Reanalysis Data Archive

I am converting the reanalysis data from the directory:

ftp://arlftp.arlhq.noaa.gov/archives/reanalysis/

I wanted to know if the times were in PST or GMT?
by Smaug
May 16th, 2018, 10:11 am
Forum: Dispersion Model
Topic: HYSPLIT error
Replies: 18
Views: 2187

Re: HYSPLIT error

I recompiled with gfortran and I am afraid I'm getting a similar error. If I add a single entry after the 21st I get: STOP 900 printed to the screen. It runs if the emission go from 11th to 21st. If I keep on adding emission cycles in the EMITIMES then I get: Segmentation fault - invalid memory refe...
by Smaug
May 15th, 2018, 9:58 am
Forum: Dispersion Model
Topic: HYSPLIT error
Replies: 18
Views: 2187

Re: HYSPLIT error

I've attached the first part of the MESSAGE file. Let me know if you need the rest.
by Smaug
May 15th, 2018, 5:28 am
Forum: Dispersion Model
Topic: HYSPLIT error
Replies: 18
Views: 2187

Re: HYSPLIT error

Using hycs_std doesn't give me an error message but it stops the simulation about the same time and prints "900" to the screen.

I've added the both the ulimit command and the export command to increase the stack size but I am still getting the forrtl:error(69): process interrupted (SIGINIT).
by Smaug
May 14th, 2018, 12:47 pm
Forum: Dispersion Model
Topic: HYSPLIT error
Replies: 18
Views: 2187

Re: HYSPLIT error

Are you using the multi-processor hycm_std? or hycs_std? I am using hycm_std with 4 threads. Can you please attach a MESSAGE file. The MESSAGE file may be PDF. I am in the process of getting this uploaded. When is the program failing? Does it fail right when you start HYSPLIT or at a particular tim...
by Smaug
May 14th, 2018, 6:20 am
Forum: Dispersion Model
Topic: HYSPLIT error
Replies: 18
Views: 2187

Re: HYSPLIT error

Good Morning, I have increased MAXPAR, varied KHMAX and decreased the grid size but I am still getting the same error: It seems that the EMITIMES file can only have 10 days worth of releases unless I set KHAMX to be very small at which point the plume has barley left the release point. Ideally I wan...
by Smaug
May 10th, 2018, 7:40 am
Forum: Dispersion Model
Topic: HYSPLIT error
Replies: 18
Views: 2187

Re: HYSPLIT error

I've attached the input files. I might have to attach the pdf of the MESSAGE file as I am running this on a separate system.
by Smaug
May 9th, 2018, 10:32 am
Forum: Dispersion Model
Topic: HYSPLIT error
Replies: 18
Views: 2187

Re: HYSPLIT error

Is there an alternative solution for this problem?