Tidal Love and Shida numbers estimated by geodetic VLBI

被引：18

作者：

Krasna, Hana ^{[1
]}

Boehm, Johannes ^{[1
]}

Schuh, Harald ^{[2
]}

机构：

[1] Vienna Univ Technol, Dept Geodesy & Geoinformat, Res Grp Adv Geodesy, A-1040 Vienna, Austria

[2] Deutsch GeoForschungsZentrum GEZ, Helmholtz Zentrum Potsdam, Dept Geodesy & Remote Sensing, Potsdam, Germany

来源：

JOURNAL OF GEODYNAMICS | 2013年 / 70卷

关键词：

Love and Shida numbers; Solid Earth tides; Geodetic VLBI; CORE NUTATION PERIOD; RADIO INTERFEROMETRY; EARTH; PARAMETERS; DISPLACEMENT; TIDES;

D O I：

10.1016/j.jog.2013.05.001

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Frequency-dependent Love and Shida numbers, which characterize the Earth response to the tidal forces, were estimated in a global adjustment of all suitable geodetic Very Long Baseline Interferometry (VLBI) sessions from 1984.0 to 2011.0. Several solutions were carried out to determine the Love and Shida numbers for the tidal constituents at periods in the diurnal band and in the long-period band in addition to values of the Love and Shida numbers common for all tides of degree two. Adding up all twelve diurnal tidal waves that were estimated, the total differences in displacement with respect to the theoretical conventional values of the Love and Shida numbers calculated from an Earth model reach 1.73 +/- 0.29 mm in radial direction and 1.15 +/- 0.15 mm in the transverse plane. The difference in the radial deformation following from the estimates of the zonal Love numbers is largest for the semi-annual tide S-sa with 1.07 +/- 0.19 mm. (C) 2013 The Author. Published by Elsevier Ltd. All rights reserved.

引用

页码：21 / 27

页数：7

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