HYSPLIT Forum: hysplitbbs.arl.noaa.gov

Please refer to the code here: http://www.meteothink.org/examples/mete ... t2arl.html

In new released MeteoInfo 2.3.3, the bug for data extraction from sub-hourly ARL data (such as 10 minutes time resolution) was fixed. Also new version can read big ARL data structure much faster. In fact, ARL data label has no minute parameter to get right time stamp directly. For example, there are...

You can check this topic for converting ERA5 to ARL data format: viewtopic.php?f=30&t=1778 .

You can try to use MeteoInfo to read ARL packed data.

I have no experience on no-leap canlendar, but I think hysplit need leap day as your testing result. So you need to convert no-leap canlendar to Gregorian calendar before writing the time in ARL data. In fact, MeteoInfo gets Gregorian time from data according starting time and hours (or other units)...

Please using the newest version of MeteoInfo (http://www.meteothink.org/downloads/index.html), and please let me know if you have further problem.

Thanks for your information! I have tried adding DIFW as a variable in converted ARF data file and comparing WWND by adding DIFW values. DIFW still has lossy compression problem to reproduce exactly data values of origianl ERA5 data, but the result much improved. Following are new scripts for conver...

The example script to convert ERA5 grib data to ARL formatted data for HYSPLIT input meteorological dataset. # Convert ERA5 GRIB data to ARL data #---- Set data folder datadir = r'D:/Temp/grib' #---- Set output data file outfn = os.path.join(datadir, 'test_era5_grib-1.arl') #---- Read a GRIB data fi...

From MeteoInfo version 2.0, opengl supported 3D axes was implemented for better 3D data visualization. Following is an example to plot 3D trajectory and terrain. fn = 'D:/Temp/hysplit/output_850' f = addfile_hytraj(fn) tlayer = f.trajlayer() ls = tlayer.legend() for lb in ls.getLegendBreaks(): lb.se...

The HYSPLIT ./bdyfiles subdirectory contains ascii gridded terrain, land-use and roughness length data for Hysplit. Following is an example MeteoInfoLab script for reading and plotting terrain data file. #Read and plot HYSPLIT bdyfiles import re #Parameters slat = -90 #lat of lower left corner slon ...