Calculation and analysis of 2'× 2' gravity anomalies over the South China Sea based on Cryosat-2 satellite altimeter data

doi:10.3969/j.issn.1673-5005.2015.03.009

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋物理与遥感研究室

	Calculation and analysis of 2'× 2' gravity anomalies over the South China Sea based on Cryosat-2 satellite altimeter data
	Wan, Jianhua 1; Li, Jiajun 1; Liu, Shanwei 1; Yang, Jungang 2
刊名	Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science)
	2015
卷号	39 期号:3 页码:70-75
关键词	Aneroid altimeters Glacial geology Least squares approximations
ISSN号	16735005
DOI	10.3969/j.issn.1673-5005.2015.03.009
英文摘要	The gravity anomaly of the South China Sea was calculated with high spatial resolution and precision using the Cryosat-2 data. The tracks and crossover points of the Cryosat-2 satellite altimetry level 2 SIR_GDR_2A data were analyzed. The component of grid residual vertical deflection was calculated with the weighted minimum least squares solution method using the cycle1-cycle4 data, then the gravity anomalies in 2'× 2' grid over the South China Sea between 4°-24° latitude and 105°-120° longitude were determined. The results show that the Cryosat-2 data have a high track density, and are distributed regularly and uniformly with a 15.9 cm RMS value of crossover point differences, which is slightly higher than the synchronous Jason-2 GDR data. Compared with the post-processed shipboard gravimetry, the root mean square value of the gravity anomaly in 2'× 2' grid over the South China Sea is 4.5×10-5m·s-2. ©, 2015, Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science). All right reserved.
语种	中文
出版者	University of Petroleum, China
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/6648]
专题	业务部门_海洋物理与遥感研究室
作者单位	1.School of Geosciences in China University of Petroleum, Qingdao; 266580, China;; 2.First Institute of Oceanography, State Oceanic Administration, Qingdao; 266061, China
推荐引用方式 GB/T 7714	Wan, Jianhua,Li, Jiajun,Liu, Shanwei,et al. Calculation and analysis of 2'× 2' gravity anomalies over the South China Sea based on Cryosat-2 satellite altimeter data[J]. Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science),2015,39(3):70-75.
APA	Wan, Jianhua,Li, Jiajun,Liu, Shanwei,&Yang, Jungang.(2015).Calculation and analysis of 2'× 2' gravity anomalies over the South China Sea based on Cryosat-2 satellite altimeter data.Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science),39(3),70-75.
MLA	Wan, Jianhua,et al."Calculation and analysis of 2'× 2' gravity anomalies over the South China Sea based on Cryosat-2 satellite altimeter data".Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science) 39.3(2015):70-75.