Search found 415 matches

by barbara.stunder
August 3rd, 2020, 10:51 am
Forum: General questions on meteorological data needed for HYSPLIT
Topic: Met data gap
Replies: 1
Views: 45

Re: Met data gap

You can use the gdas1 archive for June 12, 2019.
gdas1.jun19.w2 at ftp://ftp.arl.noaa.gov/archives/gdas1/
by barbara.stunder
July 23rd, 2020, 1:42 pm
Forum: Cluster Analysis
Topic: Problem setting up cluster analysis
Replies: 10
Views: 251

Re: Problem setting up cluster analysis

The two trajectories that were listed in the TCLUS file (used in the clustering) started at 59 minutes after the hour. The other trajectories, per spot-checking, started at other non-zero minutes, such as 14, 29, etc. Rerun the trajectories so they always start at 59 minutes (or 00 minutes) after th...
by barbara.stunder
July 23rd, 2020, 9:02 am
Forum: Cluster Analysis
Topic: Problem setting up cluster analysis
Replies: 10
Views: 251

Re: Problem setting up cluster analysis

I reproduced the issue. Need a little time to figure it out.
by barbara.stunder
July 22nd, 2020, 10:13 am
Forum: Cluster Analysis
Topic: Problem setting up cluster analysis
Replies: 10
Views: 251

Re: Problem setting up cluster analysis

Please just email the tdump files to me at barbara.stunder at noaa dot gov (but with @ and .)
by barbara.stunder
July 21st, 2020, 4:11 pm
Forum: Cluster Analysis
Topic: Problem setting up cluster analysis
Replies: 10
Views: 251

Re: Problem setting up cluster analysis

Try to attach the files here so I can run a test.
by barbara.stunder
July 21st, 2020, 7:58 am
Forum: Cluster Analysis
Topic: Problem setting up cluster analysis
Replies: 10
Views: 251

Re: Problem setting up cluster analysis

Open the text files TCLUS and TNOCLUS. TCLUS lists the trajectories clustered. TNOCLUS lists the trajectories not clustered, usually because of the 'Hours to cluster' and "Trajectory skip" inputs. If all the trajectories were used, TCLUS would be the same as INFILE. Because it says "Pass 1 out of 1"...
by barbara.stunder
July 20th, 2020, 8:29 am
Forum: Trajectory Model
Topic: Combining traj/freq at same location, different years
Replies: 1
Views: 92

Re: Combining traj/freq at same location, different years

I am not quite clear on your question. The trajectory frequency program will run on the endpoints files listed in the file INFILE (see https://www.ready.noaa.gov/documents/Tutorial/html/traj_freq.html) whether they are sequential days or not. For example if you run trajectories for every days in Jun...
by barbara.stunder
July 14th, 2020, 8:59 am
Forum: General questions on meteorological data needed for HYSPLIT
Topic: FTP failed
Replies: 1
Views: 118

Re: FTP failed

As given in the GUI, the nam12 archive began in 2007, but you are requesting data from 2005. Please try EDAS instead for 2005. README files for our archives are at https://www.ready.noaa.gov/archives.php.
by barbara.stunder
July 13th, 2020, 12:00 pm
Forum: Trajectory Model
Topic: Comparison between model results obtained three or more years later
Replies: 2
Views: 101

Re: Comparison between model results obtained three or more years later

The mixed layer depth is in the meteorology file, and the archives have not been changed. How much different are the trajectories?
by barbara.stunder
July 13th, 2020, 8:29 am
Forum: HYSPLIT for PCs
Topic: Trajectory frequency plot
Replies: 4
Views: 2339

Re: Trajectory frequency plot

The error message is implying there is more than one trajectory in a tdump file. Is that the case? For example multiple starting heights. The frequency program can only handle one trajectory per tdump file.