Open AccessDoes convection vary in different cloud disturbances?
Author(s) -
Miyamoto Yoshiaki,
Yoshida Ryuji,
Yamaura Tsuyoshi,
Yashiro Hisashi,
Tomita Hirofumi,
Kajikawa Yoshiyuki
Publication year - 2015
Publication title -
atmospheric science letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.951
H-Index - 45
ISSN - 1530-261X
DOI - 10.1002/asl2.558
Subject(s) - madden–julian oscillation , convection , convective available potential energy , deep convection , wind shear , tropical cyclone , meteorology , geology , climatology , atmospheric sciences , oscillation (cell signaling) , environmental science , physics , wind speed , biology , genetics
Deep moist convection is an element of cloud disturbances such as Madden‐Julian oscillation ( MJO ), tropical cyclones ( TCs ), mid‐latitudinal low depressions ( MDL ), and fronts ( FRT ). However, differences in convection characteristics in disturbances remain unclear. We first clarified the statistical features of the convection (structure, intensity, and environmental parameters) in various disturbances simulated by a global simulation with a sub‐kilometre grid spacing. The convection in MJO ( TC ) was tall with a strong (weak) upward motion, and was driven by large convective available potential energy (strong low‐level convergence). The convection in MDL and FRT was shorter and characterized by a strong vertical wind shear.