Abstract
On the basis of gravity field model (EIGEN_CG01C), together with multi-altimeter data, the improved deflection of the vertical gridded in 2′×2′ in China marginal sea and gridded in 5′×5′ in the global sea was determined by using the weighted method of along-track least squares, and the accuracy is better than 1.2″ in China marginal sea. As for the quality of the deflection of the vertical, it meets the challenge for the gravity field of high resolution and accuracy. It shows that, compared with the shipboard gravimetry in the sea, the accuracy of the gravity anomalies computed with the marine deflection of the vertical by inverse Vening-Meinesz formula is 7.75 m·s−2.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Sandwell (1992) Antarctic marine gravity field from high-density satellite altimetry [J]. Geophys J Int, 109: 437–448
Olgiati A, Balmino G, Sarrailh M, et al. (1995) Gravity anomalies from satellite altimetry: comparison between computation via geoid heights and via deflections of the vertical [J]. Manuscripta Geodaetica, 69: 252–260
Hwang C, Kao E C, Parson B (1998) Global anomalies derivation of marine gravity anomalies from Seasat, Geosat, Ers-1 and Topex/Poseidon altimeter data [J]. Geophys J Int, 34: 449–460
Rapp R H (1986) Detailed gravity anomalies and sea surface heights derived from Geos-3/Seasat altimeter data[J]. J Geophys Res, 91(B5): 4 867–4 876
Wang Yanming, Rapp R H (1991) Geoid gradient for Geosat and Topex/Poseidon repeat ground track[R]. Report No.408, Department of Geodetic Science and Surveying, The Ohio State University
Wang Haiying, Wang Guangyun (2000) Recovery of gravity anomalies from satellite altimeter data in China seas and vicinit —II. Method with Along-track Vertical deflections[J]. High Technology Letters, 11:46–49
Peng Fuqing, Xia Zheren (2004) Vertical deflection theorem of satellite altimetry[J]. Hydrographic Surveying and Charting, 24(2): 5–9
Rothacher M, Flechtner F (2007) GFZ Potsdam[OL]. http://www.gfz-potsdam.de/pb1/op/grace/index_GRACE.html
Jiang Weiping, Li Jiancheng, Wang Zhengtao (2002) Mean sea surface over the global sea derived from multi-satellite altimeter[J]. Chinese Science Bulletin, 47(15): 1 187–1 191
Bao Lifeng, Lu Yang, Xu Houze (2004) Waveform retracking of Topex/Poseidon altimeter in chinese offshore[J]. Chinese Journal of Geophysics, 47(2): 216–221
Hwang Cheinway, Guo Jinyun (2006) Coastal gravity anomalies from retracked Geosat/GM altimetry: improvement, limitation and the role of airborne gravity data[J]. J Geod, 80: 204–216
Author information
Authors and Affiliations
Corresponding author
Additional information
Supported by the National Nature Science Foundation of China(No. 40474030, 40674013).
About this article
Cite this article
Wang, H., Wang, Y. & Lu, Y. High precision vertical deflection over China marginal sea and global sea derived from multi-satellite altimeter. Geo-spat. Inf. Sci. 11, 289–293 (2008). https://doi.org/10.1007/s11806-008-0122-8
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11806-008-0122-8