Validating the Variability of Snow Accumulation and Melting From GPS-Reflected Signals: Forward Modeling

	Validating the Variability of Snow Accumulation and Melting From GPS-Reflected Signals: Forward Modeling
	Najibi, Nasser 1,2; Jin, Shuanggen3,4 ; Wu, Xuerui5
刊名	IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
	2015-06-01
卷号	63 期号:6 页码:2646-2654
关键词	GPS-reflected signals power spectral density snow accumulation snow melting
英文摘要	The variability of snow accumulation and melting is one of the most important interactions of the Earth's surface with atmosphere through energy transmission and mass balance. In this paper, the effects of snow accumulation and melting together with bare soil and fixed snow depth on the reflected global positioning system (GPS) signals are investigated using GPS antenna gains and multipath signal. The reflected GPS signals are modeled and employed to analyze the interactions of snow accumulation, snow melting, bare soil, and fixed snow depth at BAKE and KUUJ GPS stations in Northern Canada. The results show the clear independency of the snow accumulation and melting variations with bare soil and fixed snow depth, which are validated from GPS-reflected signals as well. The modeled reflected GPS signals indicate the higher frequency of snow accumulation and snow melting than that of bare soil and fixed snow depth, while the estimated power spectral density of the GPS-reflected signals shows the higher signal power of coherence function difference. Furthermore, the GPS observations at BAKE and KUUJ sites confirm such variations with a good agreement during the snow accumulation, melting, bare soil, and fixed snow depth on the ground.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Electrical & Electronic ; Telecommunications
研究领域[WOS]	Engineering ; Telecommunications
关键词[WOS]	GNSS SIGNALS ; ICE-SHEET ; MULTIPATH ; DEPTH ; SIMULATIONS ; GREENLAND ; ANTENNA ; OCEAN
收录类别	SCI
语种	英语
WOS记录号	WOS:000357605400025
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/18240]
专题	上海天文台_天文地球动力学研究中心
作者单位	1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.CUNY, New York, NY 10031 USA 3.Chinese Acad Sci, Key Lab Planetary Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 4.Bulent Ecevit Univ, TR-67100 Zonguldak, Turkey 5.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Najibi, Nasser,Jin, Shuanggen,Wu, Xuerui. Validating the Variability of Snow Accumulation and Melting From GPS-Reflected Signals: Forward Modeling[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,2015,63(6):2646-2654.
APA	Najibi, Nasser,Jin, Shuanggen,&Wu, Xuerui.(2015).Validating the Variability of Snow Accumulation and Melting From GPS-Reflected Signals: Forward Modeling.IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,63(6),2646-2654.
MLA	Najibi, Nasser,et al."Validating the Variability of Snow Accumulation and Melting From GPS-Reflected Signals: Forward Modeling".IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 63.6(2015):2646-2654.