Observed characteristics of atmospheric ducts over the South China Sea in autumn

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Observed characteristics of atmospheric ducts over the South China Sea in autumn
	Cheng Yinhe; Zhou Shengqi; Wang Dongxiao; Lu Yuanzheng; Huang Ke; Yao Jinglong; You Xiaobao
刊名	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2016
卷号	34 期号:3 页码:619-628
关键词	GPS radiosonde atmospheric ducts autumn statistical characteristics
通讯作者	Cheng, YH (reprint author), Guangdong Ocean Univ, Coll Ocean & Meteorol, Guangdong Prov Key Lab Coastal Ocean Variat & Dis, Zhanjiang 524088, Peoples R China. ; Cheng, YH ; Wang, DX (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China.
中文摘要	The observed characteristics of lower atmospheric ducts over the South China Sea (SCS) were analyzed based on Global Position Systerm (GPS) radiosonde data collected four times daily during autumn open cruises from 2006 to 2012. Duct occurrence, thickness, and strength over the SCS were about 40%, 150-m thick, and 8 M units, respectively, which were larger than during the summer monsoon period. Most ducts occurred at heights <1 500 m and these ducts easily trap electromagnetic wave clusters with wavelengths <2 m. Diurnal variation of the SCS ducts appeared evident. They occurred more often at midnight at higher altitudes (about 1 100 m), with a thickest layer of about 145 m and less frequently during the evening at lower altitudes (about 800 m), with a thinnest layer of about 125 m. Moreover, ducts during the daytime at a mean height of about 900 m, with the greatest strength of about 10 M units. Furthermore, all duct variables observed over the SCS in autumn decreased from north to south. These findings are useful not only in the design of radar and communication systems, but also for evaluating possible effects of anomalous propagation on meteorological radar and military applications.
学科主题	Marine & Freshwater Biology; Oceanography
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/15367]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Cheng Yinhe,Zhou Shengqi,Wang Dongxiao,et al. Observed characteristics of atmospheric ducts over the South China Sea in autumn[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2016,34(3):619-628.
APA	Cheng Yinhe.,Zhou Shengqi.,Wang Dongxiao.,Lu Yuanzheng.,Huang Ke.,...&You Xiaobao.(2016).Observed characteristics of atmospheric ducts over the South China Sea in autumn.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,34(3),619-628.
MLA	Cheng Yinhe,et al."Observed characteristics of atmospheric ducts over the South China Sea in autumn".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 34.3(2016):619-628.