10-day Convective History

This product plots the positions of air parcels in the POSIDON region at
the given altitude that have been influenced by convection in the past 5 days. 
It also plots the locations of the convection and trajectories between 
the convection and the influenced air parcels. 

Cloud top altitudes over the Langley Pacific region for the 
satellite data are derived from global TRMM rainfall, LARC Pacific 
brightness temperatures, GFS temperature profiles, and GFS tropopause
temperatures and pressures. Outside of this region, cloud top altitudes
are derived from GFS forecast convective rainfall and GFS high cloud top
pressures.