HYSPLIT Model Updates

Highlights of Recent Updates

Based on multiple sensitivity tests the new default configuration is now 3D particle
Option to transfer particle mass to a global Eulerian dispersion module
New time-of-arrival concentration graphic
Mixing depth computation method can be specified or set to a constant
Horizontal and vertical turbulence method can be specified independently
Most postscript mapping programs have the option to use shapefiles for backgrounds
In addition to meteorology, ensemble options added to GUI for turbulence and physics
New program to manipulate multiple concentration files to find sum, mask, or maximum
New graphic to show member number of simulations shown in ensemble boxplot
Added a background job submission option to the GUI for standard or MPI simulations
Revised concentration grid to station conversion to support row or column formats

Plotting routines were modified in terms of centering, colors, and clipping
Units were changed in the source-attribution code for consistency
The internal vertical grid structure was corrected for high resolution input data
Emissions were corrected to handle releases shorter than the model's time step
The termination message shows if points fall outside the domain in terms of space or time
Additional puff split-merge factors were moved from the constants to the namelist input
A multi-trajectory geo-location option based upon measurment data was added to the GUI menu
Cluster number labels were added to the trajectory plotting program
A new GUI tab can be used to install model updates when they become available