Regional Validation of Jason-2 Dual-Frequency Ionosphere Delays

	Regional Validation of Jason-2 Dual-Frequency Ionosphere Delays
	Tseng, Kuo-Hsin 1; Shum, C. K.; Yi, Yuchan ; Dai, Chunli ; Lee, Hyongki ; Bilitza, Dieter 2; Komjathy, Attila 3; Kuo, C. Y.4; Ping, Jinsong 5; Schmidt, Michael 6
刊名	MARINE GEODESY
	2010
卷号	33 期号:1 页码:272-284
关键词	Ionosphere delay total electron content Satellite altimetry
英文摘要	In this study, we validated the Jason-2 (J2) dual-frequency ionosphere delay measurements in terms of vertical total electron content (VTEC) in the Geophysical Data Record (GDR) with the coarse resolution JPL Global Ionospheric Maps (GIM), the regional ionospheric maps generated by the Crustal Motion Observation Network of China (CMONOC), and the Jason-1 (J1) interleaved tandem mission (with J2) ionosphere delay measurements. The estimates of the relative biases and their uncertainties (95% confidence, in TEC units) for various comparison cases with different data spans and regions are (1) J2-GIM: -3.07 +/- 0.18 TECu (or 6.75 +/- 0.40 mm in the range delay), (2) J2-CMONOC: -2.87 +/- 0.38 TECu (6.31 +/- 0.84 mm), (3) J1-GIM: -0.19 +/- 0.18 TECu (0.42 +/- 0.40 mm), and (4) J2-J1 via double-differencing, that is, (J2-GIM)-(J1-GIM): -2.88 +/- 0.26 TECu (6.34 +/- 0.57 mm). The scatter (RMS, about the mean differences) between J2 and GIM, CMONOC, or J1 is about 3 similar to 8 TECu (6.6 similar to 17.6 mm). We conclude that the results from global and regional analysis are consistent and that the J2 ionosphere delay is about 6 similar to 10 mm (95% confidence) shorter than the delay computed by GIM, J1, or the regional model.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Geochemistry & Geophysics ; Oceanography ; Remote Sensing
研究领域[WOS]	Geochemistry & Geophysics ; Oceanography ; Remote Sensing
关键词[WOS]	GPS ; ALTIMETRY
收录类别	SCI
语种	英语
WOS记录号	WOS:000281422900014
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/26332]
专题	上海天文台_天文地球动力学研究中心
作者单位	1.Ohio State Univ, Div Geodet Sci, Sch Earth Sci, Columbus, OH 43210 USA 2.George Mason Univ, Space Weather Lab, Fairfax, VA 22030 USA 3.CALTECH, Jet Prop Lab, Pasadena, CA USA 4.Natl Cheng Kung Univ, Dept Geomat, Tainan 70101, Taiwan 5.Chinese Acad Sci, Shanghai Astron Observ, Shanghai, Peoples R China 6.Deutsch Geodaet Forschungsinst, Munich, Germany
推荐引用方式 GB/T 7714	Tseng, Kuo-Hsin,Shum, C. K.,Yi, Yuchan,et al. Regional Validation of Jason-2 Dual-Frequency Ionosphere Delays[J]. MARINE GEODESY,2010,33(1):272-284.
APA	Tseng, Kuo-Hsin.,Shum, C. K..,Yi, Yuchan.,Dai, Chunli.,Lee, Hyongki.,...&Schmidt, Michael.(2010).Regional Validation of Jason-2 Dual-Frequency Ionosphere Delays.MARINE GEODESY,33(1),272-284.
MLA	Tseng, Kuo-Hsin,et al."Regional Validation of Jason-2 Dual-Frequency Ionosphere Delays".MARINE GEODESY 33.1(2010):272-284.