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The impact of changing forest composition in Europe - longest carbon turnover time in unmanaged and broadleaved deciduous forests. [PDF]
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Science, 1991
Recent improvements in geodetic data and practical meteorology have advanced research on fluctuations in the Earth's rotation. The interpretation of these fluctuations is inextricably linked with studies of the dynamics of the Earth-moon system and dynamical processes in the liquid metallic core of the Earth (where the geomagnetic field originates ...
R, Hide, J O, Dickey
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Recent improvements in geodetic data and practical meteorology have advanced research on fluctuations in the Earth's rotation. The interpretation of these fluctuations is inextricably linked with studies of the dynamics of the Earth-moon system and dynamical processes in the liquid metallic core of the Earth (where the geomagnetic field originates ...
R, Hide, J O, Dickey
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Annual Review of Earth and Planetary Sciences, 1988
The Earth's rotation is not constant. Instead, both the rate of rotation and the position of the rotation axis vary with time. Changes in the rotation rate are directly proportional to changes in the length of a day (LOD). In addition, the time integral of the LOD variability is proportional to fluctuations in Universal Time, the measure of time as ...
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The Earth's rotation is not constant. Instead, both the rate of rotation and the position of the rotation axis vary with time. Changes in the rotation rate are directly proportional to changes in the length of a day (LOD). In addition, the time integral of the LOD variability is proportional to fluctuations in Universal Time, the measure of time as ...
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Optical rotation from Earth rotation?
Physics World, 1990Can the Earth's rotation affect atomic physics? Mark Silverman of Trinity College, Hartford, CT, USA suggests that the Earth's rotation could induce a detectable amount of optical rotation in atoms (1990 Phys. Lett. A 146 175). Optical rotation is the rotation of the plane of polarisation of a light beam about its direction as it passes through some ...
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1989
The full description of the Earth rotation in space is given by: the motion of the Earth rotation axis with respect to the Earth shown by polar motion; the motion of the Earth rotation axis in space, defined by lunisolar precession and astronomical nutation (see Chapter 8); the angular position around the Earth rotation axis that is the
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The full description of the Earth rotation in space is given by: the motion of the Earth rotation axis with respect to the Earth shown by polar motion; the motion of the Earth rotation axis in space, defined by lunisolar precession and astronomical nutation (see Chapter 8); the angular position around the Earth rotation axis that is the
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The Physics Teacher, 2002
A Foucault pendulum equipped with a low-cost computer interface is described. It allows one to measure the precession rate of the plane of oscillation due to Earth rotation within a few minutes. A graphic interface (PC tablet) serves as a frictionless two-dimensional position sensor.
Manfred Euler, Gert Braune
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A Foucault pendulum equipped with a low-cost computer interface is described. It allows one to measure the precession rate of the plane of oscillation due to Earth rotation within a few minutes. A graphic interface (PC tablet) serves as a frictionless two-dimensional position sensor.
Manfred Euler, Gert Braune
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1977
The President opened the meeting and invited R. Anderle to report on polar motion determined by Doppler satellite observations. The speaker said that the standard error in pole positions from 48 hours of Doppler observations was only 7 cm. However, because of uncertainties in the gravity field the standard deviation was 60 cm.
Edith A. Müller, Arnost Jappel
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The President opened the meeting and invited R. Anderle to report on polar motion determined by Doppler satellite observations. The speaker said that the standard error in pole positions from 48 hours of Doppler observations was only 7 cm. However, because of uncertainties in the gravity field the standard deviation was 60 cm.
Edith A. Müller, Arnost Jappel
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Atmosphere and Earth's rotation
Surveys in Geophysics, 1996The theoretical aspects of the transfer of angular momentum between atmosphere and Earth are treated with particular emphasis on analytical solutions. This is made possible by the consequent usage of spherical harmonics of low degree and by the development of large-scale atmospheric dynamics in terms of orthogonal wave modes as solutions of Laplace's ...
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Global Earth Models and Earth Rotation
1986In this study we consider the existing Earth models and supply them with an inelastic mantle. Results showing the dispersion effects expressed in terms of frequency dependant Lame parameters are presented. Using Zschau’s inelastic parameters the gravimetric factor increases by about.3 percent.
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