TY - JOUR
T1 - Dynamical influence of microphysics in tropical squall lines
T2 - A numerical study
AU - Liu, Changhai
AU - Moncrieff, Mitchell W.
AU - Zipser, Edward J.
PY - 1997/9
Y1 - 1997/9
N2 - Based on environmental conditions of the 22 and 23 June squall lines during the Convection Profonde Tropicale in 1981 (COPT81) experiment in West Africa, a series of numerical simulations are performed with a two-dimensional nonhydrostatic cloud model to examine the dynamical effect of microphysics in tropical squall lines. The role of ice-phase microphysics strongly depends on ambient conditions. For the environment of strong convective instability, the ice phase is important regarding the system-scale structure but is not important to the convective-scale dynamics. On the other hand, the ice influence is crucial to the squall-line convective system if the environment has a weak convective instability and is almost saturated at low levels.
AB - Based on environmental conditions of the 22 and 23 June squall lines during the Convection Profonde Tropicale in 1981 (COPT81) experiment in West Africa, a series of numerical simulations are performed with a two-dimensional nonhydrostatic cloud model to examine the dynamical effect of microphysics in tropical squall lines. The role of ice-phase microphysics strongly depends on ambient conditions. For the environment of strong convective instability, the ice phase is important regarding the system-scale structure but is not important to the convective-scale dynamics. On the other hand, the ice influence is crucial to the squall-line convective system if the environment has a weak convective instability and is almost saturated at low levels.
UR - https://www.scopus.com/pages/publications/0001186348
U2 - 10.1175/1520-0493(1997)125<2193:DIOMIT>2.0.CO;2
DO - 10.1175/1520-0493(1997)125<2193:DIOMIT>2.0.CO;2
M3 - Article
AN - SCOPUS:0001186348
SN - 0027-0644
VL - 125
SP - 2193
EP - 2210
JO - Monthly Weather Review
JF - Monthly Weather Review
IS - 9
ER -