Q: Are BVs the same as LVs? A:Yes and No!
•BVs are like leading LVs but with finite amplitude (which filters
out unwanted fast instabilities, convection or even Brownian motion!)
•In a system that has “room” for multiple independent instabilities,
BVs and LVs share properties but are also different.
•BVs don’t collapse into a single leading BV because of nonlinearity
and stochastic forcing
•Like the leading LVs, BVs are independent of the norm and the
interval of rescaling, the only tunable parameter is the size