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DOI | 10.1175/JAS-D-17-0015.1 |
Scaling Analysis of Temperature and Liquid Water Content in the Marine Boundary Layer Clouds during POST | |
Ma, Yong-Feng1; Malinowski, Szymon P.1; Karpinska, Katarzyna1; Gerber, Hermann E.2; Kumala, Wojciech1 | |
2017-12-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2017 |
卷号 | 74期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | Poland; USA |
英文摘要 | The authors have analyzed the scaling behavior of marine boundary layer (MBL) clouds using high-resolution temperature (T) and liquid water content (LWC) fluctuations from aircraft measurements collected over the Pacific Ocean during the Physics of Stratocumulus Top (POST) research campaign in summer of 2008. As an extension of the past studies for scale-invariant properties of MBL clouds, the authors studied the variability of scaling exponents with height. The results showed that both LWC and T have two distinct scaling regimes: the first one displays scale invariance over a range from about 1-5 m to at least 7 km, and the second one goes from about 0.1-1 to 1-5 m. For the large-scale regime (r > 1-5 m), turbulence in MBL clouds is multifractal, while scale break and scaling exponents vary with height, most significantly in the cloud-top region. For example, LWC spectral exponent beta increases from 1.42 at cloud base to 1.58 at cloud top, while scale break decreases from similar to 5 m at cloud base to 0.8 m at cloud top. The bifractal parameters (H-1, C-1) for LWC increase from (0.14, 0.02) at cloud base to (0.33, 0.1) at cloud top while maintaining a statistically significant linear relationship C-1 approximate to 0.4H(1) - 0.04 in MBL clouds. From near surface to cloud top, (H-1, C-1) for T also increase with height, but above cloud top H-1 increases and C-1 decreases with height. The results suggest the existence of three turbulence regimes: near the surface, in the middle of the boundary layer, and in the cloud-top region, which need to be distinguished. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427864800005 |
WOS关键词 | STRATOCUMULUS TOP POST ; INVARIANCE ; TURBULENCE ; SPECTRA ; INTERMITTENCY ; DISTRIBUTIONS ; FLUCTUATIONS ; VARIABILITY ; QUANTITIES ; RESOLUTION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29651 |
专题 | 地球科学 |
作者单位 | 1.Univ Warsaw, Inst Geophys, Fac Phys, Warsaw, Poland; 2.Gerber Sci Inc, Reston, VA USA |
推荐引用方式 GB/T 7714 | Ma, Yong-Feng,Malinowski, Szymon P.,Karpinska, Katarzyna,et al. Scaling Analysis of Temperature and Liquid Water Content in the Marine Boundary Layer Clouds during POST[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2017,74(12). |
APA | Ma, Yong-Feng,Malinowski, Szymon P.,Karpinska, Katarzyna,Gerber, Hermann E.,&Kumala, Wojciech.(2017).Scaling Analysis of Temperature and Liquid Water Content in the Marine Boundary Layer Clouds during POST.JOURNAL OF THE ATMOSPHERIC SCIENCES,74(12). |
MLA | Ma, Yong-Feng,et al."Scaling Analysis of Temperature and Liquid Water Content in the Marine Boundary Layer Clouds during POST".JOURNAL OF THE ATMOSPHERIC SCIENCES 74.12(2017). |
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