Search found 163 matches

by alicec
October 16th, 2019, 9:00 am
Forum: Trajectory Model
Topic: Emission of multiple groups of particles in time
Replies: 1
Views: 140

Re: Emission of multiple groups of particles in time

Please see the HYSPLIT tutorial, specifically Section 5.4 https://ready.arl.noaa.gov/documents/Tutorial/html/index.html If you need more customization than the GUI provides, then you can use the scripts provided with Section 5.4 as a template for creating your own scripts to run trajectories at the ...
by alicec
October 16th, 2019, 8:56 am
Forum: Users
Topic: Size of puffs
Replies: 1
Views: 104

Re: Size of puffs

SIGH and SIGW are the relevant parameters for the puffs. SIGH is the horizontal puff width. SIGW is the vertical width if you are using 3d puffs (initd=1 or 2). https://ready.arl.noaa.gov/hysplitusersguide/S622.htm SIGV is only relevant for particles, not puffs. See below some example output from pa...
by alicec
October 16th, 2019, 7:58 am
Forum: Users
Topic: How can I convert .bin output to other formats?
Replies: 1
Views: 79

Re: How can I convert .bin output to other formats?

A description of file formats can be found here (scroll to the end). https://ready.arl.noaa.gov/hysplitusersguide/ There are also a few utility programs included with HYSPLIT which will convert some of the binary files to ascii. con2asc converts the cdump files to ascii par2asc converts particle out...
by alicec
October 7th, 2019, 8:33 am
Forum: Conversion programs
Topic: Segmentation fault using era52arl
Replies: 7
Views: 191

Re: Segmentation fault using era52arl

It's difficult to trouble shoot a segmentation fault on someone else's system, so I'm not sure how helpful I can be.
What compiler are you using?
by alicec
October 1st, 2019, 7:59 am
Forum: Conversion programs
Topic: Segmentation fault using era52arl
Replies: 7
Views: 191

Re: Segmentation fault using era52arl

Can you send me the command you are using to download the files with the python script?
by alicec
September 27th, 2019, 12:31 pm
Forum: Conversion programs
Topic: Segmentation fault using era52arl
Replies: 7
Views: 191

Re: Segmentation fault using era52arl

What version of HYSPLIT are you using? Can you try running the era52arl without any inputs ./era52arl Should give you this: Usage: era52arl [-options] One pressure level file and at least one surface file must be input. The surface file(s) should have all the time periods that pressure level files h...
by alicec
September 18th, 2019, 8:41 am
Forum: Users
Topic: how to run an Excel data in Hysplite
Replies: 2
Views: 270

Re: how to run an Excel data in Hysplite

We provide a tutorial which is an excellent way to familiarize yourself with HYSPLIT.

https://ready.arl.noaa.gov/documents/Tu ... index.html
by alicec
September 17th, 2019, 8:00 am
Forum: Bugs
Topic: Transport artifact at poles
Replies: 3
Views: 2644

Re: Transport artifact at poles

The problem is that velocity is converted to grid points per unit time at each met grid point and then the velocity at the computational particle position (in grid points per unit time) is calculated. This causes issues at the poles because (A) the grid spacing at the pole is zero, so velocity in gr...
by alicec
August 19th, 2019, 8:56 am
Forum: Trajectory Model
Topic: "Flooring effect" on mixing layer depth data generated from GDAS files
Replies: 3
Views: 236

Re: "Flooring effect" on mixing layer depth data generated from GDAS files

By default HYSPLIT does set a minimum mixing depth (150m or 250m depending on the version of HYSPLIT you are using). Please see the documentation on why HYSPLIT uses this default. https://www.ready.noaa.gov/hysplitusersguide/S625.htm Mixed Layer Depth Computation KMIXD is used to control how the bou...