globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2014MS000335
Scopus记录号: 2-s2.0-84937033547
论文题名:
Advection, moistening, and shallow-to-deep convection transitions during the initiation and propagation of Madden-Julian Oscillation
作者: Hagos S; , Feng Z; , Landu K; , Long C; N
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2015
卷: 6, 期:3
起始页码: 938
结束页码: 949
语种: 英语
英文关键词: Advection ; Moisture ; Natural convection ; Deep convection ; Eastward propagation ; High resolution ; Individual modeling ; Initiation and propagation ; Madden-Julian oscillation ; Moisture variability ; Shallow to deep convection transitions ; Climatology ; advection ; atmospheric convection ; Madden-Julian oscillation ; marine atmosphere ; moisture ; precipitation (climatology) ; shallow water ; troposphere ; uplift ; wave propagation ; Indian Ocean
英文摘要: Using observations from the 2011 AMIE/DYNAMO field campaign over the Indian Ocean and a high-resolution regional model simulation, the processes that lead to the rapid shallow-to-deep convection transitions associated with the initiation and eastward propagation of the Madden-Julian Oscillation (MJO) are examined. By tracking the evolution of the depth of several thousand individual model simulated precipitation features, the role of and the processes that control the observed midtropospheric moisture buildup ahead of the detection of deep convection are quantified at large and convection scales. The frequency of shallow-to-deep convection transitions is found to be sensitive to this midlevel moisture and large-scale uplift. This uplift along with the decline of large-scale drying by equator-ward advection causes the moisture buildup leading to the initiation of the MJO. Convection scale moisture variability and uplift, and large-scale zonal advection play secondary roles. © 2014. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/76005
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Pacific Northwest National Laboratory, Richland, WA, United States; Indian Institute of Technology, Bhubaneswar, India

Recommended Citation:
Hagos S,, Feng Z,, Landu K,et al. Advection, moistening, and shallow-to-deep convection transitions during the initiation and propagation of Madden-Julian Oscillation[J]. Journal of Advances in Modeling Earth Systems,2015-01-01,6(3)
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