A novel method for detecting tropopause structures based on the bi-Gaussian function
文献类型：期刊论文
| 作者 | Zhang, Kun1,2,3; Luo, Tao1,2,3; Li, Xuebin1,2,3 ; Cui, Shengcheng1,3; Weng, Ningquan1,3; Huang, Yinbo1,3; Wang, Yingjian1,2,3
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| 刊名 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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| 出版日期 | 2024-10-07 |
| 卷号 | 24 |
| ISSN号 | 1680-7316 |
| DOI | 10.5194/acp-24-11157-2024 |
| 通讯作者 | Luo, Tao(luotao@aiofm.ac.cn) ; Li, Xuebin(xbli@aiofm.ac.cn) |
| 英文摘要 | The tropopause is an important transition layer and can be a diagnostic of upper-tropospheric and lower-stratospheric structures, exhibiting unique atmospheric thermal and dynamic characteristics. A comprehensive understanding of the evolution of fine tropopause structures is necessary and primary for the further study of complex multi-scale atmospheric physical-chemical coupling processes in the upper troposphere and lower stratosphere. A novel method utilizing the bi-Gaussian function is capable of identifying the characteristic parameters of vertical tropopause structures and providing information on double-tropopause (DT) structures. The new method improves the definition of the cold-point tropopause and detects one (or two) of the most significant local cold points by fitting the temperature profiles to the bi-Gaussian function, which defines the point(s) as the tropopause height(s). The bi-Gaussian function exhibits excellent potential for explicating the variation trends of temperature profiles. The results of the bi-Gaussian method and lapse rate tropopause, as defined by the World Meteorological Organization, are compared in detail for different cases. Results indicate that the bi-Gaussian method is able to more stably and obviously identify the spatial and temporal distribution characteristics of the thermal tropopauses, even in the presence of multiple temperature inversion layers at higher elevations. Moreover, 5 years of historical radiosonde data from China (from 2012 to 2016) revealed that the occurrence frequency and thickness of the DT, as well as the single-tropopause height and the first and second DT heights, displayed significant meridional monotonic variations. The occurrence frequency (thickness) of the DT increased from 1.07 % (1.96 km) to 47.19 % (5.42 km) in the latitude range of 16-50 degrees N. The meridional gradients of tropopause height were relatively large in the latitude range of 30-40 degrees N, essentially corresponding to the climatological locations of the subtropical jet and the Tibetan Plateau. |
| WOS关键词 | LARGE-SCALE OROGRAPHY ; TROPICAL TROPOPAUSE ; TIBETAN PLATEAU ; EXTRATROPICAL TROPOPAUSE ; TRANSITION LAYER ; INVERSION LAYER ; GRAVITY-WAVES ; WATER-VAPOR ; ERA-INTERIM ; STRATOSPHERE |
| 资助项目 | China Postdoctoral Science Foundation |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001327182900001 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| 资助机构 | China Postdoctoral Science Foundation |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135824]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Luo, Tao; Li, Xuebin |
| 作者单位 | 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Key Lab Atmospher Opt, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, State Key Lab Laser Interact Matter, HFIPS, Hefei 230031, Peoples R China 3.Adv Laser Technol Lab Anhui Prov, Hefei 230037, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Kun,Luo, Tao,Li, Xuebin,et al. A novel method for detecting tropopause structures based on the bi-Gaussian function[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2024,24. |
| APA | Zhang, Kun.,Luo, Tao.,Li, Xuebin.,Cui, Shengcheng.,Weng, Ningquan.,...&Wang, Yingjian.(2024).A novel method for detecting tropopause structures based on the bi-Gaussian function.ATMOSPHERIC CHEMISTRY AND PHYSICS,24. |
| MLA | Zhang, Kun,et al."A novel method for detecting tropopause structures based on the bi-Gaussian function".ATMOSPHERIC CHEMISTRY AND PHYSICS 24(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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