HYSPLIT Forum: hysplitbbs.arl.noaa.gov

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...

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...

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...

You need to set vertical motion method to 4:sigma for this meteorological data.

MeteoInfo 1.4.6 was released with 3-D trajectory plot function (http://www.meteothinker.com/news/meteoinfo_1.4.6.html).

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.

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 .

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...

In fact, the data files are not corrupted but they were stored as little endian format. HYSPLIT concentration data normally should be big endian. I don't know if conread or concplot has option to read these little endian data. I just updated MeteoInfo/MeteoInfoLab software to solve this condition (M...

ARL or HYSPLIT meteorological data format is not so popular as netCDF or GRIB, so it is not supported directly in most softwares such as NCL and GrADS. But MeteoInfo (which is free and open source) can read/write and display this data format. You can try it from this website: http://www.meteothinker...