globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2016JD025921
论文题名:
The universal scaling characteristics of tropical oceanic rain clusters
作者: Teo C.-K.; Huynh H.-N.; Koh T.-Y.; Cheung K.K.W.; Legras B.; Chew L.Y.; Norford L.
刊名: Journal of Geophysical Research: Atmospheres
出版年: 2017
卷: 122, 期:11
起始页码: 5582
结束页码: 5599
语种: 英语
英文关键词: self-organized criticality ; tropical rain clusters
英文摘要: Using multiyear satellite rainfall estimates, the distributions of the area, and the total rain rate of rain clusters over the equatorial Indian, Pacific, and Atlantic Oceans was found to exhibit a power law (Formula presented.), in which S represents either the cluster area or the cluster total rain rate and fS(s) denotes the probability density function of finding an event of size s. The scaling exponents ζS were estimated to be 1.66 ± 0.06 and 1.48 ± 0.13 for the cluster area and cluster total rain rate, respectively. The two exponents were further found to be related via the expected total rain rate given a cluster area. These results suggest that convection over the tropical oceans is organized into rain clusters with universal scaling properties. They are also related through a simple scaling relation consistent with classical self-organized critical phenomena. The results from this study suggest that mesoscale rain clusters tend to grow by increasing in size and intensity, while larger clusters tend to grow by self-organizing without intensification. ©2017. American Geophysical Union. All Rights Reserved.
资助项目: "We thank Matthew R. Igel and another anonymous reviewer for their suggestions and feedback for the manuscript. H.N.H. acknowledges the support of the A*STAR International Fellowship. The TRMM 3B42 is freely available from the website hosted by the NASA Goddard Earth Sciences Data and Information Services Center, GES-DISC, http://disc.sci.gsfc.nasa.gov. The MISR data were obtained from the NASA Langley Research Center Atmospheric Science Data Center. This research is in collaboration with the Center for Environmental Sensing and Modeling (CENSAM) and is supported by the National Research Foundation Singapore under its Campus for Research Excellence and Technological Enterprise program. CENSAM is an interdisciplinary research group of the Singapore MIT Alliance for Research and Technology.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62672
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Centre for Applied Research, SIM University, Singapore; Complexity Institute, Nanyang Technological University, Singapore; Institute of High Performance Computing, Agency for Science, Technology and Research, Singapore; Department of Mathematics, Imperial College London, London, United Kingdom; UniSIM College, SIM University, Singapore; Department of Environmental Sciences, Macquarie University, Sydney, NSW, Australia; Laboratoire de Météorologie Dynamique, CNRS and Ecole Normale Supérieure, Paris, France; School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore; CENSAM, Singapore-MIT Alliance for Research and Technology, Singapore; Department of Architecture, Massachusetts Institute of Technology, Cambridge, MA, United States

Recommended Citation:
Teo C.-K.,Huynh H.-N.,Koh T.-Y.,et al. The universal scaling characteristics of tropical oceanic rain clusters[J]. Journal of Geophysical Research: Atmospheres,2017-01-01,122(11)
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