Search found 425 matches

by barbara.stunder
September 28th, 2020, 8:40 am
Forum: Radiological
Topic: Differences between results at different output resolutions and discrepancy between ascii values and corresp. contouring
Replies: 1
Views: 8

Re: Differences between results at different output resolutions and discrepancy between ascii values and corresp. contou

The contours in concplot are smoothed, so yes, there can be differences in the details you are looking at.  Please plot using the hysplit utility program gridplot, which does not do contouring, it just plots the values on the grid.  The program gridplot is in the PC distribution.   In your figure wi...
by barbara.stunder
September 21st, 2020, 3:25 pm
Forum: Repositories of HYSPLIT formatted data
Topic: Expected Download Speeds from arlftp
Replies: 4
Views: 575

Re: Expected Download Speeds from arlftp

Try to avoid roughly 07-10 UTC.
by barbara.stunder
September 21st, 2020, 9:00 am
Forum: Trajectory Model
Topic: Error in frequency analysis
Replies: 1
Views: 77

Re: Error in frequency analysis

This seems like it should be working. Try this: 1. Open the file ..\graphics/CLRTBL.CFG in Notepad. See if it looks alright - 4 columns of data. 2. Repeat the run in the command prompt, but use -k0 instead of -k1. That will be Black and White, but still using the CLRTBL. 3. In the command prompt, ru...
by barbara.stunder
September 21st, 2020, 8:12 am
Forum: Dispersion Model
Topic: Measuring radionuclide dispersal
Replies: 4
Views: 253

Re: Measuring radionuclide dispersal

Yes.
by barbara.stunder
September 14th, 2020, 10:20 am
Forum: HYSPLIT for LINUX
Topic: Error while running hycm_std
Replies: 1
Views: 186

Re: Error while running hycm_std

You are getting that message, which also says "Simulation will continue on one processor!" because you are running with puffs (initd=2,3 or 4). If you can change to the particle mode initd=0 for 3-d particle, or initd=1 (Gaussian-horizontal vertical puff), then it will run as multi-processor. The in...
by barbara.stunder
September 14th, 2020, 9:47 am
Forum: Trajectory Model
Topic: Back trajectory temporal and spatial error
Replies: 2
Views: 99

Re: Back trajectory temporal and spatial error

The exact spatial error as a function of time is not known.  Running the ensemble option as you are doing gives you an estimate of the uncertainty - if all the trajectories are close together the error is relatively low, if they are far apart, the error is larger.  The trajectories only track the me...
by barbara.stunder
September 8th, 2020, 9:27 am
Forum: Dispersion Model
Topic: Changing Settling Velocity
Replies: 1
Views: 234

Re: Changing Settling Velocity

For information on gravitational settling, see section 5.1 of
https://www.arl.noaa.gov/documents/reports/arl-224.pdf
and
https://ready.arl.noaa.gov/hysplitusersguide/S314.htm
The settling velocity can be forced by entering it as the dry deposition velocity.
by barbara.stunder
August 31st, 2020, 9:47 am
Forum: HYSPLIT Workshop
Topic: Hello,
Replies: 8
Views: 384

Re: Hello,

Yes, but you need to do one at a time.
by barbara.stunder
August 17th, 2020, 9:03 am
Forum: HYSPLIT Workshop
Topic: Hello,
Replies: 8
Views: 384

Re: Hello,

A good reference is the Basic Tutorial. Download it, start at the beginning and go through it to the end of the trajectory sections.
https://www.ready.noaa.gov/HYSPLIT_Tutorials.php
by barbara.stunder
August 10th, 2020, 8:46 am
Forum: Users
Topic: Can anybody introduce what's new in the version 5 of Hysplit?
Replies: 1
Views: 337

Re: Can anybody introduce what's new in the version 5 of Hysplit?

There are descriptions of the updates at https://www.arl.noaa.gov/hysplit/hysplit-model-updates/
and in the document subdirectory - file updates.txt
The tutorial was also updated - https://www.ready.noaa.gov/HYSPLIT_Tutorials.php