Does convection vary in different cloud disturbances?

Yoshiaki Miyamoto; Ryuji Yoshida; Tsuyoshi Yamaura; Hisashi Yashiro; Hirofumi Tomita; Yoshiyuki Kajikawa

doi:10.1002/asl2.558

Does convection vary in different cloud disturbances?

Yoshiaki Miyamoto, Ryuji Yoshida, Tsuyoshi Yamaura, Hisashi Yashiro, Hirofumi Tomita, Yoshiyuki Kajikawa

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	305-309
Number of pages	5
Journal	Atmospheric Science Letters
Volume	16
Issue number	3
DOIs	https://doi.org/10.1002/asl2.558
Publication status	Published - 2015 Jul
Externally published	Yes

Keywords

Cloudy disturbance
Global simulation
Moist convection

ASJC Scopus subject areas

Atmospheric Science

Access to Document

10.1002/asl2.558

Cite this

@article{985968abb1db419a8eb6dc4f826f651f,

title = "Does convection vary in different cloud disturbances?",

abstract = "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.",

keywords = "Cloudy disturbance, Global simulation, Moist convection",

author = "Yoshiaki Miyamoto and Ryuji Yoshida and Tsuyoshi Yamaura and Hisashi Yashiro and Hirofumi Tomita and Yoshiyuki Kajikawa",

note = "Funding Information: The authors would like to thank Drs M. Satoh, M. Sugi, T. Miyakawa, S. Nishizawa, S. Iga, and H. Miura, T. Nasuno and our colleagues for fruitful discussions. The simulation was performed using the K computer at the RIKEN Advanced Institute for Computer Science. Publisher Copyright: {\textcopyright} 2015 Royal Meteorological Society.",

year = "2015",

month = jul,

doi = "10.1002/asl2.558",

language = "English",

volume = "16",

pages = "305--309",

journal = "Atmospheric Science Letters",

issn = "1530-261X",