Bulk Richardson Number
The Bulk Richardson Number (BRN) is a dimensionless number in meteorology relating vertical stability and vertical shear (generally, stability divided by shear). It represents the ratio of thermally produced turbulence and turbulence generated by vertical shear.
Practically, its value determines whether convection is free or forced. High values indicate unstable and/or weakly sheared environments; low values indicate weak instability and/or strong vertical shear. Generally, values in the range of around 10 to 45 suggest environmental conditions favorable for supercell development. See also: Monin-Obukhov Length.
Read more about Bulk Richardson Number: Critical Values and Interpretation, Difficulties in Interpretation
Famous quotes containing the words bulk, richardson and/or number:
“The bulk of mankind believe in two gods. They are under one dominion here in the house, as friend and parent, in social circles, in letters, in art, in love, in religion; but in mechanics, in dealing with steam and climate, in trade, in politics, they think they come under another.”
—Ralph Waldo Emerson (1803–1882)
“Women who have had no lovers, or having had one, two or three, have not found a husband, have perhaps rather had a miss than a loss, as men go.”
—Samuel Richardson (1689–1761)
“Envy has blackened every page of his history.... The future, in its justice, will number him among those men whom passions and an excess of activity have condemned to unhappiness, through the gift of genius.”
—Eugène Delacroix (1798–1863)