Seawater Density Effect on Sea Level Height Variation

doi:10.7523/j.issn.2095-6134.2002.4.012

›› 2002, Vol. 19 ›› Issue (4): 410-414.DOI: 10.7523/j.issn.2095-6134.2002.4.012

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Seawater Density Effect on Sea Level Height Variation

ZHOU Xu Hua¹, WU Bin¹, ZHONG Min¹

Key Laboratory of Dynamic Geodesy, Institute of Geodesy & Geophysics, Chinese Academy of Sciences, Wuhan 430077

Received:2001-10-31 Revised:2002-03-26 Online:2002-07-18

Abstract

Abstract:

Using TOPEX^/Poseidon satellite altimeter data, and seawater temperature and salinity estimated from WOA98 model, we calculated sea level height variation caused by seawater density change in multi-layers.The result shows that seawater density change is an important factor on sea level height variation at seasonal time scale.The displacement at Shanghai GPS station and J₂variation in Earth's gravity field are quite different, while sea level height variation caused by seawater density change is removed or included from TOPEX^/Poseidon observat ion.The result show s that i t is more important to separate sea level height variation caused by seawater density change in the study of Earth dynamic problem.

Key words: sea level height variation, seawater density, TOPEX^/Poseidon altimeter data

CLC Number:

P731

ZHOU Xu Hua, WU Bin, ZHONG Min . Seawater Density Effect on Sea Level Height Variation[J]. , 2002, 19(4): 410-414.

References

[1] Callahan P S.TOPEX/Poseidon NASA GRD users handbook, JPL rep D-8590 rev C Jet Propulsion Lab, Pasadena, Calif.1993

[2] Repert J P, Donguy J R, et al.Relations between sea level, thermocline depth, heat content, and dynamic height in the t ropical Pacific Ocean.J Geophy Res, 1985,90(C6):11719 ～ 11725

[3] Whi te W B, Tai C K.Inferring int erannual changes in global upper ocean heat storage from TOPEX altimetry.J Geophy Res, 1995, 90(C12):24943 ～ 24954

[4] Chambers D P, Tapley B D.Long-period ocean heat storage rates and basin-scale heat fluxes from TOPEX.J Geophy Res, 1997, 102(C5):10525 ～ 10533

[5] Chen J L,S hum C K, et al.Seasonal sea level change f rom TOPEX/Poseidon observation and thermal contribution.Journal of Geodesy,2000, 73:638 ～ 647

[6] Cheng M K, Tapley B D.Seasonal variations in low degree zonal harmonics of the Earth's gravity field from sat ellite laser ranging observations.J Geophy Res, 1999, 104(B2):2667 ～ 2681

[7] Antonov J I, Levitus T P, et al.World Ocean Atlas 1998 Vol.1.Government Printing Of fice Washington, D C.1998

[8] Boyer T P, Levitus T P, et al.World Ocean Atlas 1998 Vol.4.Government Printing Of fice Washington, DC.1998

[9] Knauss J A.Int roduction to physical oceanography.Prentice-hall, Englewood Cliffs, 1978, 319 ～ 321

[10] An tonov J I, Levitus T P, et al.World Ocean Atlas 1994 Vol.4.Government Print ing Off ice Washingt on, D C.1994

[11] Young-Molling C C, da Silva A M, Levi tus S.Atlas of Surf ace Marine Data 1994, Supplement B:P rocedures f or 0.5x0.5 Degree Data Set.NOAA Atlas NESDIS xx.1996

[12] Farrell W E.Def ormation of the earth by surface loads.Space Phys, 1972, 10:761 ～ 797

[13] 周旭华, 吴斌等.中国地壳运动网络中的海潮位移改正.天文学报, 2001, 42(3):272 ～ 277

[14] 周旭华, 吴斌.大气、陆地水储量和海水质量分布变化与地球低阶引力场球谐系数的关系.天文学报, 2002, 43(3):327 ～ 332

Seawater Density Effect on Sea Level Height Variation

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