Search found 33 matches

by arl.noaa
May 9th, 2017, 8:21 am
Forum: Users
Topic: Display Shapefiles in HYSPLIT
Replies: 2
Views: 1419

Display Shapefiles in HYSPLIT

I want to display my own back ground map in the trajectory plots for using shapefiles that I have for my location, how do I do that?
by arl.noaa
May 7th, 2013, 2:25 pm
Forum: Trajectory Model
Topic: Wind speed along trajectory
Replies: 1
Views: 1067

Wind speed along trajectory

I am using HYSPLIT to do a backward trajectory analysis, but I didn't find any information about the wind speed along the trajectory. Could you please tell me if this is possible?
by arl.noaa
March 1st, 2013, 9:55 am
Forum: Trajectory Model
Topic: How to run many trajectories?
Replies: 1
Views: 1085

How to run many trajectories?

I am familiar with the online methods to run backward and forward trajectories, etc., but I am not exactly clear how to run many (say several thousand) trajectories in an effective way. Is it possible? If I had a suite of LATLON data, each of which would represent a potential origin or end point for...
by arl.noaa
December 11th, 2012, 9:54 am
Forum: Chemicals
Topic: Liquid dispersion in Hysplit
Replies: 1
Views: 3371

Liquid dispersion in Hysplit

Is there a way to model a liquid dispersion in Hysplit? For instance, the source is a liquid spray as opposed to gas.
by arl.noaa
December 7th, 2012, 2:59 pm
Forum: Trajectory Model
Topic: Ensemble starting heights
Replies: 1
Views: 1042

Ensemble starting heights

I am frequently calculating trajectory ensembles starting withing the PBL using the HYSPLIT ensemble mode. Usually I use 500 m agl as starting height and leave the default grid offset parameters (DXF, DYF, DZF) untouched. In the HYSPLIT manual it is said, that the default DZF of 0.01 sigma units cor...
by arl.noaa
December 7th, 2012, 8:24 am
Forum: HYSPLIT for PCs
Topic: Convert output to text
Replies: 1
Views: 1191

Convert output to text

I am running HYSPLIT 4 on my desktop and the output file type says "file". How do I get the output files to be a text file? Thank you.
by arl.noaa
November 13th, 2012, 10:48 am
Forum: Wildfire Smoke
Topic: Where are the operational forecasts?
Replies: 1
Views: 3710

Where are the operational forecasts?

Where do I find the operational smoke forecasts from HYSPLIT? Thanks.
by arl.noaa
November 13th, 2012, 10:19 am
Forum: HYSPLIT for PCs
Topic: Trajectory frequency and cluster analysis
Replies: 1
Views: 1862

Trajectory frequency and cluster analysis

Hello, I am running HYSPLIT on my PC using the GUI. I want to display trajectory frequencies. I have no problem creating the INFILE, but I'm not sure how to proceed. I've tried to define the grid resolution under concentration setup (concentration grid setup). Is this the correct place to define the...
by arl.noaa
November 13th, 2012, 10:14 am
Forum: Trajectory Model
Topic: Why multiple trajectories are different than just one?
Replies: 1
Views: 1177

Why multiple trajectories are different than just one?

I created two trajectory graphics. One has one trajectory starting at 500m AGL. The other has three trajectories starting at the same location but three different levels, including the 500m AGL. But the trajectory starting at 500m AGL on the two graphics is very different. Please give me suggestions.
by arl.noaa
November 13th, 2012, 10:11 am
Forum: Trajectory Model
Topic: Wind speed along a trajectory
Replies: 1
Views: 1209

Wind speed along a trajectory

Recently I am using HYSPLIT to do a backward trajectory analysis, but I didn't find any information about the wind speed along the trajectory, which I am very interested in. Could you please help me get in contact with people who work with HYSPLIT backward trajectory, so I can ask more specific ques...