Search found 53 matches

by yaqiang
August 23rd, 2018, 3:42 am
Forum: Users
Topic: mixing height data
Replies: 1
Views: 1026

Re: mixing height data

If you mean to extract PBLH data at a specific location from existing meteorological data (such as GDAS data), you can follow the example here: http://www.meteothinker.com/examples/me ... rp_st.html .
interpn_st.png
by yaqiang
August 8th, 2018, 8:32 pm
Forum: Conversion programs
Topic: Connverting tgs file to shape file
Replies: 1
Views: 1582

Re: Connverting tgs file to shape file

Firstly you should make sure that you have calculated trajectories correctly. Or you may got empty .tgs file so no .shp file can be created. You can learn MeteoInfo and TrajStat from my presentation in 2018 HYSPLIT workshop (http://www.meteothinker.com/docs/introd ... esentation).
by yaqiang
May 31st, 2018, 11:39 pm
Forum: MeteoInfo Software
Topic: TrajStat 1.4.5 was released
Replies: 0
Views: 4277

TrajStat 1.4.5 was released

Add Check point number button in cluster calculation dialog to check the end point number of each trajectory. Add 3D trajectory chart to explore the trajectories in 3D view. Add Save to grid menu item to save PSCF/CWT data in a Sufer ASCII grid data file, which can be loaded and plot as a contour la...
by yaqiang
March 19th, 2018, 9:08 am
Forum: General questions on meteorological data needed for HYSPLIT
Topic: Clarification on meteorological data
Replies: 20
Views: 13122

Re: Clarification on meteorological data

You can use MeteoInfoMap to explore the ARL data file. Or use MeteoInfoLab script to extract PBLH data at a specific location from GDAS data. An example script: lat = 40.0 lon = 120.5 fn = 'D:/Temp/arl/20140301_gdas0p5' f = addfile(fn) pblh = f['PBLH'][:,str(lat),str(lon)] #Plot plot(pblh, '-bo') yl...
by yaqiang
March 9th, 2018, 1:26 am
Forum: MeteoInfo Software
Topic: MeteoInfoLab script - plot HYSPLIT concentration data
Replies: 0
Views: 3599

MeteoInfoLab script - plot HYSPLIT concentration data

Get a HYSPLIT output concentration data file object using addfile_hyocnc function, and then read 2D array for filled contour plot. Following is an example of cesium-137 simulation during 2011 Fukushima nuclear disaster. fn = r'D:\Working\MIScript\JapanNuclear\cdump15' f = addfile_hyconc(fn) tidx = 5...
by yaqiang
August 22nd, 2017, 9:12 pm
Forum: Conversion programs
Topic: api2arl more levels
Replies: 9
Views: 4811

Re: api2arl more levels

You need to set vertical motion method to 4:sigma for this meteorological data.
by yaqiang
July 31st, 2017, 4:22 am
Forum: MeteoInfo Software
Topic: 3-D trajectory plot
Replies: 0
Views: 4478

3-D trajectory plot

MeteoInfo 1.4.6 was released with 3-D trajectory plot function (http://www.meteothinker.com/news/meteoinfo_1.4.6.html).
trajectory_3d_1.png
traj_3d.png
by yaqiang
June 8th, 2017, 10:52 am
Forum: Users
Topic: Is there a way this can be done?
Replies: 4
Views: 2799

Re: Is there a way this can be done?

You can create point shape file from HYSPLIT trajectory data file using MeteoInfo. All variable values will be added in attribute table including time stamp and altitude.
by yaqiang
June 8th, 2017, 10:35 am
Forum: Trajectory Model
Topic: Display of Other Along-Traj Variables
Replies: 5
Views: 3331

Re: Display of Other Along-Traj Variables

Another option is to write MeteoInfoLab script to extract the variable values from meteorological data along trajetory. There is a online example: http://www.meteothinker.com/examples/me ... _data.html .
by yaqiang
May 18th, 2017, 2:30 am
Forum: MeteoInfo Software
Topic: MeteoInfoLab script - convert ARL or concentration data to netCDF
Replies: 0
Views: 4539

MeteoInfoLab script - convert ARL or concentration data to netCDF

The 'convert2nc' function can be used to convert many data formats to netCDF, including ARL and HYSPLIT concentration data. MeteoInfo 1.4.3R3 or better version is needed. For ARL data: infn = 'D:/Temp/arl/gdas1.jul09.w5' #Input ARL file outfn = 'D:/Temp/arl/gdas1.jul09.w5.nc' #Output netCDF file con...