HYSPLIT Forum: hysplitbbs.arl.noaa.gov

READY runs the vmixing program for stability calculations. While minor discrepancies are expected due to single-precision floating-point arithmetic, a difference of 0.3–0.6% is unexpectedly large for the same input.

What is your top of domain height in meters? READY uses 10,000 meters. If the ...

It is fixed. Thank you for bringing this up to our attention.

If you are using HYSPLIT 5.4.2 or an earlier version, set the SEED value in SETUP.CFG to a negative number to reach your goal.

A similar increase in memory was observed when using HYSPLIT with HRRR. We have developed a fix that will be included in the next release.

Are you looking for the public version 5.2.1 or the registered version?

Online HYSPLIT for registered users (at https://www.ready.noaa.gov/HYSPLIT_disp.php) supports the modeling of chemical dispersion and produces plume concentrations in parts per million (ppm). Both the NAM CONUS Nest (CNEST) and HRRR provide meteorological data at 3 km resolution. HRRR is updated ...

Thank you for your post. It appears your Windows PC is preventing an unsigned executable from running due to an elevated security measure. We are actively working on digitally signing executables and installers for our HYSPLIT distributions. In the meantime, please continue using the zipped ...

In order to request the HYSPLIT source code, you must first register with HYSPLIT. If you are not registered with HYSPLIT, please visit https://www.ready.noaa.gov/HYSPLIT_register.php and follow the instructions found there.

Once you are registered with HYSPLIT, contact arl.webmaster@noaa.gov and ...

We could look into digitally signing the HYSPLIT package but it may take time to do so.

The star will not be shown if the -s0 option is used with the TRAJPLOT program.