The axial momentum balance of Earth and its fluid envelope
@article{Rosen1993TheAM, title={The axial momentum balance of Earth and its fluid envelope}, author={Richard David Rosen}, journal={Surveys in Geophysics}, year={1993}, volume={14}, pages={1-29} }
The emergence of greatly improved data sets over the past decade has heightened awareness of the close relationship between changes in the axial component of the angular momentum of the atmosphere and that of the solid Earth, the latter being reflected in small, though detectable, changes in the planet's rate of rotation. Changes in the large-scale wind field, and hence in atmospheric angular momentum, on intraseasonal through interannual time scales can be associated with a number of…
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References
SHOWING 1-10 OF 83 REFERENCES
Discrepancies in the Earth‐atmosphere angular momentum budget
- Environmental Science
- 1990
Modern geodetic and atmospheric data sets have demonstrated that changes in the solid earth's rotation rate are closely coupled to changes in the atmosphere's angular momentum over a range of…
Atmospheric angular momentum fluctuations, length-of-day changes and polar motion
- Environmental Science, PhysicsProceedings of the Royal Society of London. A. Mathematical and Physical Sciences
- 1983
Variations in the distribution of mass within the atmosphere and changes in the pattern of winds, particularly the strength and location of the major mid-latitude jet-streams, produce fluctuations in…
Barotropic motions and the exchange of angular momentum between the oceans and solid Earth
- Environmental Science, Physics
- 1990
The role of the ocean in transferring angular momentum between the atmosphere and the solid Earth is examined for periods longer than a day. Changes in the total angular momentum of the ocean can…
Atmospheric angular momentum forecasts as novel tests of global numerical weather prediction models
- Environmental SciencePhilosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences
- 1991
The global circulation of the terrestrial atmosphere exhibits fluctuations of considerable amplitude in all three components of its total angular momentum on interannual, seasonal and shorter…
A STUDY OF THE FLOW OF ANGULAR MOMENTUM IN THE ATMOSPHERE
- Physics, Environmental Science
- 1949
Abstract A study is made of the flow of angular momentum in the atmosphere for the month of January 1946. The results generally confirm the pattern proposed by Starr on theoretical grounds. Angular…
Earth Rotation as a Proxy for Interannual Variability in Atmospheric Circulation, 1860-Present.
- Environmental Science, Physics
- 1986
Abstract Modern atmospheric and geodetic datasets have demonstrated that changes in the axial component of the atmosphere's angular momentum and in the rotation rate of the solid earth are closely…
Earth‐atmosphere exchange of angular momentum simulated in a general circulation model and implications for the length of day
- Environmental Science, Physics
- 1990
The angular momentum of the Earth-atmosphere system is conserved to good approximation because external torques are small. Variations in the angular momentum of the atmosphere must therefore be…
A seasonal budget of the Earth's axial angular momentum
- Environmental Science, Physics
- 1990
The seasonal variation of the earth's axial angular momentum budget is discussed with an error on the order of a few percent. The budget is based on the core-mantle decoupling (CMD) hypothesis, using…
Atmospheric angular momentum fluctuations and changes in the length of the day
- Physics, Environmental ScienceNature
- 1980
Fluctuations in the angular momentum of the Earth's atmosphere correspond fairly well with equal and opposite fluctuations in the angular momentum of the Earth's ‘solid’ mantle. A decrease of 20% of…