Meaning of BULK RICHARDSON NUMBER (OR BRN) in English

BULK RICHARDSON NUMBER (OR BRN)

A non-dimensional number relating vertical stability and vertical shear (generally, stability divided by shear). 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 50 to 100 suggest environmental conditions favorable for supercell development.

A comprehensive English glossary of weather.      Полный английский глоссарий погоды.