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Seasonal results of aspect sensitivity from an MF radar over Kunming (25.6N, 103.8E), China
Chen, Jin-Song; Xu, Ji-Yao; Zhao, Zhen-Wei; Chen, J.-S. (jscen@spaceweather.ac.cn)
Department空间科学部
Source Publication2012 10th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2012
2012
Pages639-642
Language英语
ISBN9781467317993
AbstractThe physical shapes and causes of these partial reflection scatterers for MF radar is, as yet, an unsolved question. The aspect sensitivity parameterized by a quantity θS is defined often as the rate of decrease of power as a function of angle. Small values of θS imply the existence of specular scatterers. The seasonal results of aspect sensitivity from Kunming MF radar have been studied based on the first 12 months data, which shows a clear seasonal dependence with the bigger values in winter and the smaller values in summer. Aspect sensitivity also presents an evident variation in height, increasing between 80 and 90 km while decreasing from 90 to 100 km. Turbulence velocity measured during the same period supports the proposal that turbulences play an important role in causing specular scatterers which produces aspect sensitivity in D-region for MF radar. © 2012 IEEE.; The physical shapes and causes of these partial reflection scatterers for MF radar is, as yet, an unsolved question. The aspect sensitivity parameterized by a quantity θS is defined often as the rate of decrease of power as a function of angle. Small values of θS imply the existence of specular scatterers. The seasonal results of aspect sensitivity from Kunming MF radar have been studied based on the first 12 months data, which shows a clear seasonal dependence with the bigger values in winter and the smaller values in summer. Aspect sensitivity also presents an evident variation in height, increasing between 80 and 90 km while decreasing from 90 to 100 km. Turbulence velocity measured during the same period supports the proposal that turbulences play an important role in causing specular scatterers which produces aspect sensitivity in D-region for MF radar. © 2012 IEEE.
Conference Name2012 10th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2012
Conference DateOctober 22, 2012 - October 26, 2012
Conference PlaceXi'an, China
Indexed ByEI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3025
Collection空间科学部
Corresponding AuthorChen, J.-S. (jscen@spaceweather.ac.cn)
Recommended Citation
GB/T 7714
Chen, Jin-Song,Xu, Ji-Yao,Zhao, Zhen-Wei,et al. Seasonal results of aspect sensitivity from an MF radar over Kunming (25.6N, 103.8E), China[C]:IEEE Computer Society, 2001 L Street N.W., Suite 700, Washington, DC 20036-4928, United States,2012:639-642.
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