GSTDTAP  > 气候变化
DOI10.1029/2020GL088763
New Critical Length for the Onset of Self‐Aggregation of Moist Convection
Tomoro Yanase; Seiya Nishizawa; Hiroaki Miura; Tetsuya Takemi; Hirofumi Tomita
2020-08-04
发表期刊Geophysical Research Letters
出版年2020
英文摘要

Convective self‐aggregation (CSA) in an idealized modeling framework is key to understanding the role of clouds. To investigate the existence of characteristic length of CSA onset, we conducted systematic cloud‐resolving simulations, with a scope covering the horizontal domain size and resolution. In the high‐resolution simulation, CSA can occur with a square domain larger than ~500 km. Based on the competition between two near‐surface horizontal divergent flows, we discuss the characteristic length existence. While the flow induced by radiative cooling in the subsidence region acts as positive feedback for moisture perturbation and scales with the domain size, the other flow induced by evaporative cooling of falling rain in the convective region acts as negative feedback and does not scale. The study suggests characteristic length existence for the organization of moist convection, even in real‐world conditions.

领域气候变化
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/287725
专题气候变化
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Tomoro Yanase,Seiya Nishizawa,Hiroaki Miura,等. New Critical Length for the Onset of Self‐Aggregation of Moist Convection[J]. Geophysical Research Letters,2020.
APA Tomoro Yanase,Seiya Nishizawa,Hiroaki Miura,Tetsuya Takemi,&Hirofumi Tomita.(2020).New Critical Length for the Onset of Self‐Aggregation of Moist Convection.Geophysical Research Letters.
MLA Tomoro Yanase,et al."New Critical Length for the Onset of Self‐Aggregation of Moist Convection".Geophysical Research Letters (2020).
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