Earth Rotation: Solved and Unsolved Problems

✍ Scribed by C. Boucher (auth.), Anny Cazenave (eds.)

• Publisher: Springer Netherlands
• Year: 1986
• Tongue: English
• Leaves: 338
• Series: NATO ASI Series 187
• Edition: 1
• Category: Library

✦ Synopsis

The idea for organl.zl.ng an Advanced Research Workshop entirely devoted to the Earth rotation was born in 1983 when Professor Raymond Hide suggested this topic to the special NATO panel of global transport mechanism in the Geosciences. Such a specialized meeting did not take place since the GEOP research conference on the rotation of the Earth and polar motion which was held at the Ohio State University (USA) in 1973. In the last ten years, highly precise measurements of the Earth's rotation parameters and new global geophysical data have become available allowing major advance to be made in the under­ standing of the various irregularities affecting the Earth's rotation. The aim of the workshop was to bring together scientists who have made important contributions in this field during the last decade both at the observational and geophysical interpretation levels. The confe­ rence was divided into four main topics. The first session was dedicated to the definition, implementation and maintenance of the terrestrial and celestial reference systems. A few critical points have been identified as requiring further improvements: (i) appro­ priate selection of terrestrial sites recognized for their long term stability, (ii) determination of the relationship between terrestrial and celestial references systems as well as between the various terrestrial ones, (iii) improvment of the theory of a rotating elastic earth (the recently adopted theory needs already some corrections').

✦ Table of Contents

Front Matter....Pages i-xiv
Front Matter....Pages 1-1
Celestial Reference Systems....Pages 1-8
The Conceptual and Conventional Definitions of the Earth Rotation Parameters....Pages 9-24
How to Measure the Earth Rotation....Pages 25-44
Polar Motion and Signal Processing....Pages 45-59
Accurate Earth Orientation time Series from vlbi Observations....Pages 61-67
Front Matter....Pages 69-69
Observations of Secular and Decade Changes in the Earth’s Rotation....Pages 69-78
Earth Rotation and Solid Tides....Pages 79-92
Tidal and non Tidal Acceleration of the Earth’s Rotation....Pages 93-110
Global Climatic Changes and Astronomical Theory of Paleoclimates....Pages 111-129
Front Matter....Pages 131-131
Meteorological Data for Earth Rotation Studies....Pages 131-136
High Accuracy Earth Rotation and Atmospheric Angular Momemtum....Pages 137-162
The El-Nino, the Southern Oscillation and the Earth Rotation....Pages 163-186
The Atmospheric Circulation, the Earth’s Rotation and Solar Activity.....Pages 187-192
Ocean-Atmosphere Coupling and Short term Fluctuations of Earth Rotation....Pages 193-201
The Damping of the Chandler Wobble and the Pole Tide....Pages 203-228
Front Matter....Pages 229-229
The Influence of Earthquakes on the Polar Motion....Pages 229-240
Flow in the fluid core and Earth’s rotation....Pages 241-258
Electromagnetic Core-Mantle Coupling....Pages 259-267
Global Earth Models and Earth Rotation....Pages 269-275
Resonance Effects of the Earth’s Fluid Core....Pages 277-296
Front Matter....Pages 229-229
Long Period Core Dynamics....Pages 297-324
Back Matter....Pages 325-328

✦ Subjects

Astronomy, Observations and Techniques; Geophysics/Geodesy