Effects of precipitation on sonic anemometer measurements of turbulent fluxes in the atmospheric surface layer
Zhang Rongwang; Huang Jian; Wang Xin; Zhang Jun A; Huang Fei; Xin, W (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog LTO, Guangzhou 510301, Guangdong, Peoples R China.
2016
发表期刊JOURNAL OF OCEAN UNIVERSITY OF CHINA
卷号15期号:3页码:389-398
摘要Effects caused by precipitation on the measurements of three-dimensional sonic anemometer are analyzed based on a field observational experiment conducted in Maoming, Guangdong Province, China. Obvious fluctuations induced by precipitation are observed for the outputs of sonic anemometer-derived temperature and wind velocity components. A technique of turbulence spectra and cospectra normalized in the framework of similarity theory is utilized to validate the measured variables and calculated fluxes. It is found that the sensitivity of sonic anemometer-derived temperature to precipitation is significant, compared with that of the wind velocity components. The spectra of wind velocity and cospectra of momentum flux resemble the standard universal shape with the slopes of the spectra and cospectra at the inertial subrange, following the -2/3 and -4/3 power law, respectively, even under the condition of heavy rain. Contaminated by precipitation, however, the spectra of temperature and cospectra of sensible heat flux do not exhibit a universal shape and have obvious frequency loss at the inertial subrange. From the physical structure and working principle of sonic anemometer, a possible explanation is proposed to describe this difference, which is found to be related to the variations of precipitation particles. Corrections for errors of sonic anemometer-derived temperature under precipitation is needed, which is still under exploration.
部门归属[Zhang Rongwang; Huang Fei] Ocean Univ China, Phys Oceanog Lab, Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Qingdao 266100, Peoples R China; [Huang Jian; Huang Fei] CMA, Guangzhou Inst Trop & Marine Meteorol, JOLMM, Guangzhou 510080, Guangdong, Peoples R China; [Wang Xin] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog LTO, Guangzhou 510301, Guangdong, Peoples R China; [Zhang Jun A] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Coral Gables, FL 33124 USA ; LTO
关键词Precipitation Sonic Anemometer Virtual Temperature Turbulent Flux Spectra
学科领域Oceanography
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/15361
专题热带海洋环境国家重点实验室(LTO)
通讯作者Xin, W (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog LTO, Guangzhou 510301, Guangdong, Peoples R China.
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Zhang Rongwang,Huang Jian,Wang Xin,et al. Effects of precipitation on sonic anemometer measurements of turbulent fluxes in the atmospheric surface layer[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2016,15(3):389-398.
APA Zhang Rongwang,Huang Jian,Wang Xin,Zhang Jun A,Huang Fei,&Xin, W .(2016).Effects of precipitation on sonic anemometer measurements of turbulent fluxes in the atmospheric surface layer.JOURNAL OF OCEAN UNIVERSITY OF CHINA,15(3),389-398.
MLA Zhang Rongwang,et al."Effects of precipitation on sonic anemometer measurements of turbulent fluxes in the atmospheric surface layer".JOURNAL OF OCEAN UNIVERSITY OF CHINA 15.3(2016):389-398.
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