How does an increasing updraft in a growing cell look like? Does it's inflow slowly increase, or are the thermals becoming stronger in a (time) step-like manner?
From my own visual observations I think the last one is true: thermals successively becoming stronger with time. But is there any measured evidence for it, or numerical model results perhaps?
And what about a storm that reaches a (quasi-)steady state, like a supercell? Is it really a steady updraft or just thermals rapidly following after one other, i.e. with a very short pulse interval?
I think this is important for the formation of hailstones in storms, since parcel theory alone is usefull, but incomplete to answer these questions.
Storm over Tirgu Mures, Romania. 13 july 2010.
From my own visual observations I think the last one is true: thermals successively becoming stronger with time. But is there any measured evidence for it, or numerical model results perhaps?
And what about a storm that reaches a (quasi-)steady state, like a supercell? Is it really a steady updraft or just thermals rapidly following after one other, i.e. with a very short pulse interval?
I think this is important for the formation of hailstones in storms, since parcel theory alone is usefull, but incomplete to answer these questions.
Storm over Tirgu Mures, Romania. 13 july 2010.
