LOVE NUMBERS FOR A ROTATING SPHEROIDAL EARTH - NEW DEFINITIONS AND NUMERICAL VALUES

被引:49
作者
MATHEWS, PM
BUFFETT, BA
SHAPIRO, II
机构
[1] Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts
[2] Department of Geophysics and Astronomy, University of University of British Columbia, Vancouver
关键词
D O I
10.1029/95GL00161
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
For an oceanless, elastic, spheroidal, rotating and nutating Earth, we present new definitions for the latitude-dependent Love numbers and gravimetric constant which are free of certain drawbacks of the definitions currently in use, and make the computation of quantities of observational interest simpler and more direct. Numerical values, computed for an Earth model characterised by ''modified PREM'' parameters, are also presented. This model is designed to have the value estimated from VLBI data for the eigenfrequency of the Nearly Diurnal Free Wobble (NDFW), and assures thus an accurate representation of the NDFW resonance in the Earth tides. To achieve current and future accuracy goals, the Love number values used must fully correspond to the definitions employed-a requirement not consistently met in some existing programs for analysis of space-geodetic data.
引用
收藏
页码:579 / 582
页数:4
相关论文
共 13 条
  • [1] FORCED NUTATIONS OF THE EARTH - CONTRIBUTIONS FROM THE EFFECTS OF ELLIPTICITY AND ROTATION ON THE ELASTIC DEFORMATIONS
    BUFFETT, BA
    MATHEWS, PM
    HERRING, TA
    SHAPIRO, II
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1993, 98 (B12) : 21659 - 21676
  • [2] NEW COMPUTATIONS OF TIDE-GENERATING POTENTIAL
    CARTWRIGHT, DE
    TAYLER, RJ
    [J]. GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY, 1971, 23 (01): : 45 - +
  • [3] SIMPLE CORE UNDERTONES
    CROSSLEY, DJ
    ROCHESTER, MG
    [J]. GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY, 1980, 60 (02): : 129 - 161
  • [4] STACKING GRAVITY TIDE MEASUREMENTS AND NUTATION OBSERVATIONS IN ORDER TO DETERMINE THE COMPLEX EIGENFREQUENCY OF THE NEARLY DIURNAL FREE WOBBLE
    DEFRAIGNE, P
    DEHANT, V
    HINDERER, J
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1994, 99 (B5) : 9203 - 9213
  • [5] TIDAL PARAMETERS FOR AN INELASTIC EARTH
    DEHANT, V
    [J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 1987, 49 (1-2) : 97 - 116
  • [6] MEASUREMENT OF DIURNAL AND SEMIDIURNAL ROTATIONAL VARIATIONS AND TIDAL PARAMETERS OF EARTH
    HERRING, TA
    DONG, DN
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1994, 99 (B9) : 18051 - 18071
  • [7] FORCED NUTATIONS OF THE EARTH - INFLUENCE OF INNER CORE DYNAMICS .1. THEORY
    MATHEWS, PM
    BUFFETT, BA
    HERRING, TA
    SHAPIRO, II
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1991, 96 (B5): : 8219 - 8242
  • [8] FORCED NUTATIONS OF THE EARTH - INFLUENCE OF INNER CORE DYNAMICS .2. NUMERICAL RESULTS AND COMPARISONS
    MATHEWS, PM
    BUFFETT, BA
    HERRING, TA
    SHAPIRO, II
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1991, 96 (B5): : 8243 - 8257
  • [9] A NEW DATA-BANK FOR TIDAL GRAVITY MEASUREMENTS (DB 92)
    MELCHIOR, P
    [J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 1994, 82 (02) : 125 - 155
  • [10] SCALAR EQUATIONS OF INFINITESIMAL ELASTIC-GRAVITATIONAL MOTION FOR A ROTATING, SLIGHTLY ELLIPTICAL EARTH
    SMITH, ML
    [J]. GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY, 1974, 37 (03): : 491 - 526