Search found 451 matches

by barbara.stunder
March 2nd, 2020, 8:55 am
Forum: Repositories of HYSPLIT formatted data
Topic: How to choose which meteorological data to use
Replies: 1
Views: 15554

Re: How to choose which meteorological data to use

Please see the basic HYSPLIT tutorial at https://www.ready.noaa.gov/HYSPLIT_Tutorials.php, particularly sections and 4.6 and 13.4. Yes to "Or can each meteorological data be used, but the final effect may be different?" You want to use the meteorology file (gridded, at finite time steps) that best r...
by barbara.stunder
March 2nd, 2020, 8:45 am
Forum: Users
Topic: Pointer Select
Replies: 9
Views: 6575

Re: Pointer Select

No. It was removed because we wanted consistency between all HYSPLIT versions and it was not available for the Mac.
by barbara.stunder
March 2nd, 2020, 8:43 am
Forum: HYSPLIT for PCs
Topic: Execute Display quantity with gsview concentration in hysplit
Replies: 3
Views: 3473

Re: Execute Display quantity with gsview concentration in hysplit

You can set the HYSPLIT output averaging time in the CONTROL file. See the Basic Tutorial at https://www.ready.noaa.gov/HYSPLIT_Tutorials.php, particularly Section 8.1.
by barbara.stunder
February 26th, 2020, 9:07 am
Forum: Users
Topic: add_grid
Replies: 5
Views: 4574

Re: add_grid

Taking a 1-degree grid and changing it to be a 0.5 degree grid by interpolation will not show the small scale features that a WRF run will show. The small scale features in the atmosphere do not usually vary linearly in space (and time) as given by the output from add_grid.
by barbara.stunder
February 18th, 2020, 12:05 pm
Forum: Users
Topic: add_grid
Replies: 5
Views: 4574

Re: add_grid

I tried 10 on your dataset and it similarly failed. In looking at the code at a first glance it seems like a higher divisor number should work, but I do not have the time right now to spend on this. If you revise the code to handle what you are trying to do, we can put it in the repository. Why are ...
by barbara.stunder
February 14th, 2020, 2:56 pm
Forum: Users
Topic: add_grid
Replies: 5
Views: 4574

Re: add_grid

It should have worked. Try running chk_file on addgrid.bin to see if the (1,1) values are non-zero given in the ASCII header are non-zero. If they are zero, have you successfully run HYSPLIT with your 1-degree file? Or run chk_file on your 1-degree file to check it. Clearly your 1-degree file must b...
by barbara.stunder
February 14th, 2020, 2:24 pm
Forum: Users
Topic: add_data routine
Replies: 6
Views: 4761

Re: add_data routine

It's a problem of the meteorology data (gdas1). For example a lambert conformal grid would work.
by barbara.stunder
February 12th, 2020, 4:25 pm
Forum: Users
Topic: add_data routine
Replies: 6
Views: 4761

Re: add_data routine

Are you using a lat-lon grid? The program add_data is designed for a conformal grid, not a lat-lon grid.
by barbara.stunder
February 10th, 2020, 9:43 am
Forum: Dispersion Model
Topic: Question about 'Number of particle and puff'
Replies: 6
Views: 3824

Re: Question about 'Number of particle and puff'

You are getting the "... exceeding..." message because the number of particles in the run reaches the maximum you specified (MAXPAR). For a description of what is in the MESSAGE file, see https://ready.arl.noaa.gov/hysplitusersguide/S443.htm You can increase the MAXPAR so you won't get the "exceedin...

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