Search found 49 matches

by yaqiang
February 27th, 2017, 8:45 pm
Forum: Users
Topic: Clustering with Different Start Heights
Replies: 9
Views: 3219

Re: Clustering with Different Start Heights

Yes, TrajStat can do this job. Please check TrajStat online help document: http://www.meteothinker.com/docs/trajst ... r_cal.html .
by yaqiang
January 5th, 2017, 2:36 am
Forum: Conversion programs
Topic: met text to ARL format
Replies: 6
Views: 3569

Re: met text to ARL format

It's possible to do it with a MeteoInfoLab script. Please find online example on it (http://www.meteothinker.com/examples/me ... b2arl.html).
by yaqiang
November 17th, 2016, 8:22 am
Forum: MeteoInfo Software
Topic: TrajStat Help
Replies: 11
Views: 14932

Re: TrajStat Help

Himanshu wrote:How to use infile data (text file) generated in HYsplit to draw trajectories in trajstat.
Please look at the help documents of MeteoInfo and TrajStat: http://www.meteothinker.com/docs/index.html
by yaqiang
October 8th, 2016, 2:25 am
Forum: Users
Topic: Clustering with Different Start Heights
Replies: 9
Views: 3219

Re: Clustering with Different Start Heights

Hello.. i am doing cluster analysis in hysplit but now i want to try it in trajstat. After drawing all trajectories in trajstat i convert them in line data file (lcd) but when i tried to do cluster analysis it is showing an error " Each trajectory line should has same end points". I am not able to ...
by yaqiang
August 5th, 2016, 4:47 am
Forum: Trajectory Model
Topic: how to output vorticity along the hysplit trajectory.
Replies: 7
Views: 3507

Re: how to output vorticity along the hysplit trajectory.

looking for following sample MeteoInfoLab script. # Set working directory trajDir = 'D:/Temp/HYSPLIT' meteoDir = r'U:\data\ARL\2015' # Open trjactory data file print 'Open trajectory data file ...' trajfn = os.path.join(trajDir, 'traj_20150331') print 'Trajectory file: ' + trajfn trajf = addfile_hyt...
by yaqiang
July 12th, 2016, 9:07 pm
Forum: MeteoInfo Software
Topic: Multi-color trajectory plot
Replies: 2
Views: 3992

Re: Multi-color trajectory plot

You can download MeteoInfo 1.3.4 to do this job (http://www.meteothinker.com/news/meteoinfo_1.3.4.html)
mi_1.3.4_desktop.png
by yaqiang
June 12th, 2016, 2:26 am
Forum: Trajectory Model
Topic: Error in vertical velocity and meteorological variables along the trajectory
Replies: 2
Views: 1549

Re: Error in vertical velocity and meteorological variables along the trajectory

In this case vertical levels are in normal order, so you don't need to reverse them. Revised script: #---- Set data folder datadir = 'E:/Temp' #---- Set output data file outfn = os.path.join(datadir, 'test_grib.arl') #if os.path.exists(outfn): # os.remove(outfn) #---- Read a GRIB data file infn = os...
by yaqiang
May 30th, 2016, 11:33 am
Forum: MeteoInfo Software
Topic: Multi-color trajectory plot
Replies: 2
Views: 3992

Multi-color trajectory plot

Only one color can be assigned to a line in MeteoInfo, so we have to create multi-line pieces to fullfill multi-color trajectory plot function. Below is an example to plot a multi-color trajectory according to it’s height. Read the endpoints from the HYSPLIT output trajectory file, and create a laye...
by yaqiang
May 6th, 2016, 11:57 am
Forum: Trajectory Model
Topic: Validating rain along the trajectory.
Replies: 15
Views: 5779

Re: Validating rain along the trajectory.

I forgot to add attribute to precipitation variable in above script. See revised one: #-------------------------------------------------------- # Author: Yaqiang Wang # Date: 2016-5-6 # Purpose: Convert ARL data to netCDF data # Note: Sample #---------------------------------------------------------...