HYSPLIT Forum: hysplitbbs.arl.noaa.gov

I don't see an obvious problem.
Is a MESSAGE file created? How do you know HYSPLIT ran fine?

It is the meteorological data that you are trying to download from the ftp that is causing issues?
Can you download all the data first and then complete the runs?
Please provide examples of the error messages.

Hi Tom, We usually handle complex emission scenarios by using an additional file called an EMITIMES file as input into HYSPLIT. In the EMITIMES file, many emissions can be defined, each with their own start time, duration, location, rate, area and even a heat value which will cause plume rise to be ...

The concentration output files are binary files and their format is described here. https://www.ready.noaa.gov/hysplitusersguide/S363.htm HYSPLIT distribution comes with a con2asc utility which will convert these files into ascii text files. There are some other utilities such ash xtrct_stn and con2...

In the CONTROL file (or through GUI) you set the concentration grid. https://www.ready.noaa.gov/hysplitusersguide/S313.htm I assume then that you are setting the vertical levels in the concentration grid up to 40 km? Since the GDAS does not give model winds above 20 hPa, then HYSPLIT will extrapolat...

Please see section3 of the tutorial.
https://www.ready.noaa.gov/documents/Tu ... index.html

You can find the description of the data_avrg utility program here (as well as other utility programs). https://www.ready.noaa.gov/hysplitusersguide/util.htm#data_avrg It sounds like you want to get a time average of the data over 4 months? We do not have a utility that does this. If you just need t...

Most web browsers do not support ftp anymore. Please see this thread
search.php?keywords=winscp

You can run trajectories that require more than one meteorological data file on READY website. READY will simply create a CONTROL file that has more than one meteorological data file specified in it to cover the specified time period. See example below for trajectory that goes back 300 h. 22 10 15 1...

The latlon program is just doing something very simple. It is creating the starting trajectory points on a regular lat-lon grid. Beginning and ending points are given by the first and second line. Spacing is given by the difference between the first and third lines. It isn't matching the grid points...