Search found 44 matches

by yaqiang
May 14th, 2019, 11:07 am
Forum: MeteoInfo Software
Topic: Trouble With TrajStat Example
Replies: 1
Views: 355

Re: Trouble With TrajStat Example

It's hard to say why you got wrong result without detailed step description. The only suggestion at present is to use newest version of MeteoInfo and TrajStat if you are using old ones.
by yaqiang
May 3rd, 2019, 6:34 am
Forum: Conversion programs
Topic: Error while using grib2arl
Replies: 4
Views: 682

Re: Error while using grib2arl

The website also provide 'Data Format Conversion' option for users to download the data as netcdf data format. Your data file looks like netcdf format with .nc postfix.
by yaqiang
April 10th, 2019, 9:49 pm
Forum: Users
Topic: Problem with emission location
Replies: 5
Views: 460

Re: Problem with emission location

Wrong latitude of 63.333 in your figure. Correct one is 63.633.
by yaqiang
December 13th, 2018, 4:21 am
Forum: MeteoInfo Software
Topic: Fix the bug for HYSPLIT concentration data reading
Replies: 0
Views: 803

Fix the bug for HYSPLIT concentration data reading

A bug exists in MeteoInfo for HYSPLIT output concentration data reading. The i, j index of non-zero elements can be read from data record 8, and the i, j index starting from 1 following Fortran language. MeteoInfo was developed using Java with 0 starting array, so the element positions were read inc...
by yaqiang
November 4th, 2018, 11:41 pm
Forum: MeteoInfo Software
Topic: Calculate trajectory length
Replies: 0
Views: 728

Calculate trajectory length

An example for trajectory length calculation script was added in MeteoInfo website: http://meteothink.org/examples/meteoinf ... ength.html .
by yaqiang
November 1st, 2018, 4:06 am
Forum: MeteoInfo Software
Topic: How to calculate potential vorticity (PV) along the trajectory
Replies: 2
Views: 708

Re: How to calculate potential vorticity (PV) along the trajectory

You can calculate PV array from the existing variables and than interpolate to the end point positions of the trajectories. There is a MPV example online (http://meteothink.org/examples/meteoinfolab/meteo_analysis/moisture_potential_vorticity.html). Replace pseudo-equivalent potential temperature to...
by yaqiang
October 26th, 2018, 11:31 am
Forum: MeteoInfo Software
Topic: Web domain changed to meteothink.org
Replies: 4
Views: 799

Re: Web domain changed to meteothink.org

Great, thanks!
by yaqiang
October 19th, 2018, 9:18 pm
Forum: MeteoInfo Software
Topic: Web domain changed to meteothink.org
Replies: 4
Views: 799

Re: Web domain changed to meteothink.org

Glenn,

Thanks for your quickly response on it! Also TrajStat links need to be updated on the READY web site.

Regards
Yaqiang
by yaqiang
October 19th, 2018, 12:52 pm
Forum: MeteoInfo Software
Topic: Read trajectory data as 2D array
Replies: 0
Views: 747

Read trajectory data as 2D array

The trajectory endpoint data file can be read as 2D arrays following netCDF data model from MeteoInfo version 1.6. The dimensions are 'trajectory' (trajectory number) and 'obs' (endpoint number of one trajectory). Detail and example can be found here: http://www.meteothink.org/examples/meteoinfolab/...
by yaqiang
October 19th, 2018, 12:19 pm
Forum: MeteoInfo Software
Topic: Web domain changed to meteothink.org
Replies: 4
Views: 799

Web domain changed to meteothink.org

The previous meteothinker.com domain is no appropriate for MeteoInfo software due to its open source nature, and the previous web hosting was not stable from several weeks ago. So I moved the web site to GoDaddy with a new domain of meteothink.org (http://meteothink.org/). Please revise the web link...