Search found 33 matches

by arl.noaa
November 13th, 2012, 9:31 am
Forum: HYSPLIT for LINUX
Topic: How to obtain Linux version
Replies: 3
Views: 3936

How to obtain Linux version

Dear HYSPLIT-team,

is there a free HYSPLIT version which I can run under LINUX and which I can use for automatized backward trajectory calculations?

Thanks in advance for your answer.
by arl.noaa
November 13th, 2012, 9:29 am
Forum: Dispersion Model
Topic: Area source vs point source
Replies: 1
Views: 1455

Area source vs point source

Hello To determine an area source, I should adjust area with every point so the total area over all points represents the area of the main source. But how is the area considered for each point source in HYSPLIT? Circle or square? In other words what is the best way to determine points and allocate a...
by arl.noaa
November 13th, 2012, 9:27 am
Forum: Trajectory Model
Topic: Trajectories stop after 24 hours
Replies: 3
Views: 1582

Trajectories stop after 24 hours

I have been trying to run hysplit archival forward trajectories with a start date of June 30, 2012. No matter what I do I cannot get the trajectory to run for more than 24 hours.
by arl.noaa
November 13th, 2012, 9:22 am
Forum: General questions on meteorological data needed for HYSPLIT
Topic: Download size of meteorological data?
Replies: 1
Views: 1294

Download size of meteorological data?

Could you tell me please what is the download size of the data required to run HYSPLIT ? Also are subsequent periodic or ad hoc downloads or updates required ?

Many thanks
by arl.noaa
November 13th, 2012, 9:16 am
Forum: HYSPLIT for PCs
Topic: Clustering memory limit?
Replies: 3
Views: 2276

Clustering memory limit?

During my research project I am running the Hysplit model to calculate back-trajectories at a site for the period 1998-2011. The final goal is to do a cluster analysis of my back-trajectories and to link the obtained clusters with the concentrations of some atmosheric tracers measured at that site. ...
by arl.noaa
November 13th, 2012, 9:12 am
Forum: HYSPLIT for PCs
Topic: Error starting HYSPLIT
Replies: 1
Views: 1073

Error starting HYSPLIT

I’ve downloaded PC Hysplit to my computer. After I installed the program and I go to run the program, I get an error message from Windows. Windows says it cannot run the file Hysplit4.tcl. Do you know how to correct this error?
by arl.noaa
November 9th, 2012, 3:55 pm
Forum: General Comments
Topic: Instructions on how to use model?
Replies: 4
Views: 6363

Instructions on how to use model?

We are interested in using the HYSPLIT model as a tool to determine the implications of accidental or intentional releases on the environment. So far we have downloaded the model and relevant associated programs and the ECMF-ERA meteorological data and successfully converted the data and ran a test ...
by arl.noaa
November 9th, 2012, 3:51 pm
Forum: HYSPLIT for Mac OS X
Topic: Download Mac Version?
Replies: 1
Views: 4426

Download Mac Version?

I don't see a link to register for using Mac version of HYSPLIT. Could you please provide it?
by arl.noaa
November 9th, 2012, 3:27 pm
Forum: Dispersion Model
Topic: Is model terrain following?
Replies: 1
Views: 1428

Is model terrain following?

Is the dispersion component of the model terrain following? Ie. If I'm using the NOAA NCEP/NCAR re-analysis data, and looking at dispersal of particulates for which changes in terrain (height) can affect their descent from the PBL, is it correct to assume this is accounted for in the model? Thanks o...
by arl.noaa
November 9th, 2012, 3:18 pm
Forum: Conversion programs
Topic: What are the minimum fields needed for HYSPLIT?
Replies: 3
Views: 2513

What are the minimum fields needed for HYSPLIT?

Hello, I am a new user to HYSPLIT. We are trying to convert some Netcfd files to ARL format to do some back trajectories; I can't seem to find documentation about what parameters are required to do back-trajectories. If you could let me know which parameters need to be in our files, or even point us...