Search found 157 matches

by alicec
May 13th, 2019, 9:16 am
Forum: Dispersion Model
Topic: Multiple Simulations for Dispersal
Replies: 2
Views: 486

Re: Multiple Simulations for Dispersal

In the tutorial there are examples for creating scripts to run HYSPLIT.

https://www.ready.noaa.gov/documents/Tu ... batch.html
by alicec
May 13th, 2019, 9:13 am
Forum: Users
Topic: All concentration output is Zero!
Replies: 4
Views: 987

Re: All concentration output is Zero!

Why do you think that is the problem?
Please attach a MESSAGE file output from the run which produces 0 concentrations as well as one that doesn't.
by alicec
April 30th, 2019, 9:22 am
Forum: Trajectory Model
Topic: Floating point exception when using wrfout to get backward trajectory
Replies: 1
Views: 569

Re: Floating point exception when using wrfout to get backward trajectory

It looks like you are giving us the contents of the namelist SETUP.CFG file here and the name of a script that you ran ./traj_back-NJ-2017meteo.sh What is in the script? Is a MESSAGE file generated? If so, what is in it? You are using WRF output for the met data? Try running profile or chk_file on y...
by alicec
April 18th, 2019, 7:17 am
Forum: General questions on meteorological data needed for HYSPLIT
Topic: 0.25 degree data available?
Replies: 2
Views: 736

Re: 0.25 degree data available?

You can browse available datasets here: You might want to look at the WRF dataset if you are looking at CONUS. GDAS 0.5 degree is available from 2007. https://www.ready.noaa.gov/archives.php. You could also look at using the ERA5 dataset from ECMWF. You would have to download the data yourself and u...
by alicec
April 18th, 2019, 7:10 am
Forum: Dispersion Model
Topic: Linux version
Replies: 3
Views: 502

Re: Linux version

Do not write CONTROL after the hycs_std. hycs_std automatically looks for a file called CONTROL and SETUP.CFG in the directory that it is executed in. So the command is simply hycs_std If you input text after the command, then it looks for a file with a suffix that matches the text. For example, thi...
by alicec
April 16th, 2019, 9:41 am
Forum: Dispersion Model
Topic: Linux version
Replies: 3
Views: 502

Re: Linux version

The executables are

hycs_std
hyts_std

So you just need to type in the path along with the executable name.
e.g.

/home/hysplit/trunk/exec/hycs_std


Alice
by alicec
April 8th, 2019, 9:36 am
Forum: Users
Topic: GRIB2 to ARL with Eccodes
Replies: 6
Views: 948

Re: GRIB2 to ARL with Eccodes

The new version of api2arl uses eccodes. However the functionality of api2arl has not changed.
The only difference is that it is compiled to use the eccodes libraries rather than the grib-api libraries.
by alicec
March 19th, 2019, 3:21 pm
Forum: Dispersion Model
Topic: Apply HYSPLIT to very small area (100x100 m^2)
Replies: 1
Views: 477

Re: Apply HYSPLIT to very small area (100x100 m^2)

You can specify a very high resolution concentration grid in HYSPLIT. https://ready.arl.noaa.gov/hysplitusersguide/S313.htm However please see this discussion: https://hysplitbbs.arl.noaa.gov/viewtopic.php?t=221 Limitations include a minimum 1 minute time step and the resolution of the meteorologica...
by alicec
March 11th, 2019, 10:03 am
Forum: Users
Topic: Initializing runs with pressure levels instead of altitude levels
Replies: 1
Views: 479

Re: Initializing runs with pressure levels instead of altitude levels

There is no option for this.
You will have to do the conversion yourself.
by alicec
February 25th, 2019, 10:58 am
Forum: Conversion programs
Topic: Error reading and generating trajectories of ERA interim converted ARL data
Replies: 1
Views: 506

Re: Error reading and generating trajectories of ERA interim converted ARL data

Please see these threads: https://hysplitbbs.arl.noaa.gov/viewtopic.php?f=25&t=1206&p=3296&hilit=chk_file#p3296 https://hysplitbbs.arl.noaa.gov/viewtopic.php?f=25&t=1229&p=3389#p3389 https://hysplitbbs.arl.noaa.gov/viewtopic.php?f=14&t=202&p=3781#p3781 Please try the ecm2arl utility - you will need ...