海潮负荷效应计算的精度估计
PRECISION ESTIMATION OF THE CALCULATION OF OCEAN LOADING EFFECTS （M2）
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摘要: 本文较系统地研究和讨论了海潮负荷效应计算的精度问题。建立了总的及单项的误差估算模型。对中国大陆M2波重力、倾斜和应变的负荷计算都给出了精度估值。结果表明,海潮负荷效应计算精度明显地受地球模型和海潮图精度的限制,尤其是地球模型选取不同,对结果影响更大。越靠近沿海,其相对精度越低。并对目前的负荷研究、改正精度等进行了分析和评价。Abstract: In this paper, we study and discuss the precision of the calculation of ocean loading effects (M2). Error models are developed for both synthetic and separated cases. The precisions are estimated of the calculation of ocean (M2) effects on gravity, tilt and strain in the China mainland. The results show that the precision are noticeably affected by the earth models and ocean maps, especially by the difference between the chosen earth models. The nearer to the ocean, the lower the relative precision. Finally, the present study of loading and the problem of correction precision are investigated and evaluated.
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[1] Farrell, W.E,Deformation of the earth by surface loads, Reu. Geophys. Space Phys., 1972, 10,761——797.
[2] 孙文科,海潮负荷效应计算方法及实施,地壳形变与地震,1936 , 6 , 1 , 47——55,
[3] 许厚泽、毛伟建,不同地球模型对负荷改正的影响,地球物理学报,19R5, 28, 282——290,
[4] 沈育疆,东中国海潮汐数值计算,山东海洋学院学报,1980, 10, 26——35,
[5] 沈育疆、胡定明、梅丽明、何国平,南海潮汐数值计算,海洋湖沼通报,1985, 1; 1——10,
[6] 许厚泽、陈振邦、杨怀冰,海洋潮汐对重力和倾斜潮汐观测的影响,中国科学院测量与地球物理研究所专刊,第4号,1981.
[7] Heiskanen, W.A. and H. Moritz,物理大地测量学,1979,
[8] Gilbert, F. and A, M. Dziewonski, An application of normal mode theory to the retrieval of structural parameters and source mechanisms from seismic spectra, Phil. Traps, Xoy. Soc. London, 1975, A278, 187.
[9] Schwiderski, E. W. The Semidiurnal Principal Lunar Tide (A1z), atlas of tidal charts and maps, TR79——414 1979, NSWC.[1] Farrell, W.E,Deformation of the earth by surface loads, Reu. Geophys. Space Phys., 1972, 10,761——797.
[2] 孙文科,海潮负荷效应计算方法及实施,地壳形变与地震,1936 , 6 , 1 , 47——55,
[3] 许厚泽、毛伟建,不同地球模型对负荷改正的影响,地球物理学报,19R5, 28, 282——290,
[4] 沈育疆,东中国海潮汐数值计算,山东海洋学院学报,1980, 10, 26——35,
[5] 沈育疆、胡定明、梅丽明、何国平,南海潮汐数值计算,海洋湖沼通报,1985, 1; 1——10,
[6] 许厚泽、陈振邦、杨怀冰,海洋潮汐对重力和倾斜潮汐观测的影响,中国科学院测量与地球物理研究所专刊,第4号,1981.
[7] Heiskanen, W.A. and H. Moritz,物理大地测量学,1979,
[8] Gilbert, F. and A, M. Dziewonski, An application of normal mode theory to the retrieval of structural parameters and source mechanisms from seismic spectra, Phil. Traps, Xoy. Soc. London, 1975, A278, 187.
[9] Schwiderski, E. W. The Semidiurnal Principal Lunar Tide (A1z), atlas of tidal charts and maps, TR79——414 1979, NSWC.
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