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DOI | 10.1029/2019JD030287 |
Characteristics of Atmospheric Turbulence Retrieved From High Vertical-Resolution Radiosonde Data in the United States | |
Ko, H-C1; Chun, H-Y1; Wilson, R.2; Geller, M. A.3 | |
2019-07-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:14页码:7553-7579 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea; France; USA |
英文摘要 | In this study, we estimate atmospheric turbulence in the free atmosphere in terms of the Thorpe scale (L-T) and eddy dissipation rate (epsilon) using U.S. high vertical-resolution radiosonde data over 4 years (September 2012 to August 2016) at 68 operational stations. In addition, same calculations are conducted for 12 years (October 2005 to September 2017) at four stations among the 68 stations. These high vertical-resolution radiosonde data have a vertical resolution of approximately 5 m and extend to an altitude of approximately 33 km, and thus, turbulence can be retrieved in the entire troposphere and lower stratosphere. There are thicker and stronger turbulent layers in the troposphere than in the stratosphere, with mean epsilon values of 1.84 x 10(-4) and 1.37 x 10(-4) m(2)/s(3) in the troposphere and stratosphere, respectively. The vertical structure of epsilon exhibits strong seasonal variations, especially in the upper troposphere and lower stratosphere, with the largest epsilon values in summer and the smallest in winter. In the horizontal distribution of epsilon, large epsilon is seen mainly above the mountainous region in the troposphere, but this pattern is not seen in the stratosphere. Although epsilon is estimated by the square of L-T multiplied by the cube of the Brunt-Vaisala frequency (N), the regions of large epsilon are matched with large L-T regions where N is relatively small. For the time series of epsilon near the tropopause for 12 years at four stations, an annual variation is prominent at all stations without significant interannual variations. There is, however, a slightly increasing trend of epsilon at two stations. |
英文关键词 | high vertical-resolution radiosonde data (HVRRD) turbulent layer Thorpe analysis Thorpe scale eddy dissipation rate |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000481444200007 |
WOS关键词 | ENERGY-DISSIPATION RATES ; TROPOSPHERIC TURBULENCE ; LOWER STRATOSPHERE ; RADAR MEASUREMENTS ; PARAMETERS ; STABILITY ; MOISTURE ; LAYERS ; THORPE ; CLIMATOLOGY |
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/185221 |
专题 | 气候变化 |
作者单位 | 1.Yonsei Univ, Dept Atmospher Sci, Seoul, South Korea; 2.Sorbonne Univ, CNRS, LATMOS IPSL, Paris, France; 3.SUNY Stony Brook, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA |
推荐引用方式 GB/T 7714 | Ko, H-C,Chun, H-Y,Wilson, R.,et al. Characteristics of Atmospheric Turbulence Retrieved From High Vertical-Resolution Radiosonde Data in the United States[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(14):7553-7579. |
APA | Ko, H-C,Chun, H-Y,Wilson, R.,&Geller, M. A..(2019).Characteristics of Atmospheric Turbulence Retrieved From High Vertical-Resolution Radiosonde Data in the United States.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(14),7553-7579. |
MLA | Ko, H-C,et al."Characteristics of Atmospheric Turbulence Retrieved From High Vertical-Resolution Radiosonde Data in the United States".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.14(2019):7553-7579. |
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