globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.atmosres.2017.11.021
Scopus记录号: 2-s2.0-85035079028
论文题名:
Improved retrieval of cloud base heights from ceilometer using a non-standard instrument method
作者: Wang Y.; Zhao C.; Dong Z.; Li Z.; Hu S.; Chen T.; Tao F.; Wang Y.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 202
起始页码: 148
结束页码: 155
语种: 英语
英文关键词: Ceilometer ; Cloud base height ; Micro-pulse lidar ; Value distribution equalization
Scopus关键词: Aerosols ; Equalizers ; Optical radar ; Ceilometer ; Cloud parameters ; Cloud-base height ; Field experiment ; Meteorological station ; Micro pulse lidar ; Operational algorithms ; Value distribution ; Meteorological instruments ; algorithm ; cloud ; height ; image processing ; instrumentation ; lidar ; China
英文摘要: Cloud-base height (CBH) is a basic cloud parameter but has not been measured accurately, especially under polluted conditions due to the interference of aerosol. Taking advantage of a comprehensive field experiment in northern China in which a variety of advanced cloud probing instruments were operated, different methods of detecting CBH are assessed. The Micro-Pulse Lidar (MPL) and the Vaisala ceilometer (CL51) provided two types of backscattered profiles. The latter has been employed widely as a standard means of measuring CBH using the manufacturer's operational algorithm to generate standard CBH products (CL51 MAN) whose quality is rigorously assessed here, in comparison with a research algorithm that we developed named value distribution equalization (VDE) algorithm. It was applied to both the profiles of lidar backscattering data from the two instruments. The VDE algorithm is found to produce more accurate estimates of CBH for both instruments and can cope with heavy aerosol loading conditions well. By contrast, CL51 MAN overestimates CBH by 400 m and misses many low level clouds under such conditions. These findings are important given that CL51 has been adopted operationally by many meteorological stations in China. © 2017 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108976
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: State Key Laboratory of Earth Surface Processes and Resource Ecology, College of Global Change and Earth System Science, Beijing Normal University, Beijing, 100875, China; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States; Meteorological Institute of Shaanxi Province, Xi'an, 710014, China; Meteorological Observation Center, Chinese Meteorological Administration, Beijing, 100081, China; Laser Engineer Technology Laboratory, Beijing Institute of Space Mechanics and Electricity, Beijing, 100094, China

Recommended Citation:
Wang Y.,Zhao C.,Dong Z.,et al. Improved retrieval of cloud base heights from ceilometer using a non-standard instrument method[J]. Atmospheric Research,2018-01-01,202
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