Search found 663 matches

by ariel.stein
November 30th, 2020, 10:50 am
Forum: Dust
Topic: Modify the AOD value used to calculate U*t
Replies: 1
Views: 693

Re: Modify the AOD value used to calculate U*t

The tutorial contains a zip archive for the CONUS (https://ready.arl.noaa.gov/documents/Tutorial/dust/dust_conus.zip) and globally of monthly files of threshold friction velocity and soil dust density for each AOD grid cell over the domain that exceeds the threshold. You can modify these values to m...
by ariel.stein
October 5th, 2020, 8:25 am
Forum: Users
Topic: ERROR- ASCDATA.CFG file not found!
Replies: 1
Views: 763

Re: ERROR- ASCDATA.CFG file not found!

ASCDATA.CFG should be under the bdyfiles directory.
by ariel.stein
August 31st, 2020, 9:46 am
Forum: Users
Topic: Moving source of emission
Replies: 2
Views: 885

Re: Moving source of emission

You are on to the correct approach to define a moving source by using the EMITIMES file. Although the help file S417.htm mentions that the file can be used to define a moving source, no specific instructions are provided. As an example, the EMITIMES file you provided has been modified to redefine th...
by ariel.stein
July 17th, 2020, 4:52 pm
Forum: Trajectory Model
Topic: How Do I get?
Replies: 1
Views: 725

Re: How Do I get?

Please check chapter 13 of our workshop:
https://www.ready.noaa.gov/documents/Tu ... index.html
by ariel.stein
July 17th, 2020, 4:47 pm
Forum: Trajectory Model
Topic: 3 years daily frequency backward trajectories
Replies: 6
Views: 3298

Re: 3 years daily frequency backward trajectories

The daily trajectories should take only a few seconds. Something is not right in your computing system. Can you please share with us your CONTROL and SETUP.CFG files?
by ariel.stein
June 19th, 2020, 2:30 pm
Forum: Trajectory Model
Topic: Daily Runs Backward Trajectories
Replies: 3
Views: 1662

Re: Daily Runs Backward Trajectories

Please follow the instructions described in the link from my response above. The only change you have to make is instead of running 48 hours forward you run for 48 hours backward. Each individual trajectory will represent a 48 hour back trajectory from the source that you enter in though the GUI.
by ariel.stein
May 4th, 2020, 10:55 am
Forum: HYSPLIT for Mac OS X
Topic: Installation on Mac Catalina
Replies: 1
Views: 1781

Re: Installation on Mac Catalina

Please read the following instructions from Apple
https://support.apple.com/en-us/HT202491
by ariel.stein
April 3rd, 2020, 1:20 pm
Forum: HYSPLIT for Mac OS X
Topic: Something wrong in clustering
Replies: 1
Views: 848

Re: Something wrong in clustering

Please check a file called INFILE, it contains the names of the trajectory endpoints that will be used for the clustering. Make sure all the files have the same duration.
by ariel.stein
March 27th, 2020, 12:02 pm
Forum: General questions on meteorological data needed for HYSPLIT
Topic: Updated reanlysis data
Replies: 3
Views: 2288

Re: Updated reanlysis data

We usually update the reanalysis data at the beginning of the month.