HYSPLIT Forum: hysplitbbs.arl.noaa.gov

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 ...

The meteoroogical variable data along the trajectoies can be extracted from gridded meteorological dataset according the positions of the trajectory endpoints. Here is an example MeteoInfoLab script: http://www.meteothink.org/examples/mete ... _data.html .

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.

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.

Wrong latitude of 63.333 in your figure. Correct one is 63.633.

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...

An example for trajectory length calculation script was added in MeteoInfo website: http://meteothink.org/examples/meteoinf ... ength.html .