The mechanism of the Mt. St. Helens eruption and speculations regarding Soret effects in planetary dynamics

1985 ◽  
Vol 7 (4) ◽  
pp. 303-384 ◽  
Author(s):  
Alan Rice
Keyword(s):  
Eos ◽  
1971 ◽  
Vol 52 (7) ◽  
pp. IUGG464
Author(s):  
S. J. Peale
Keyword(s):  

2004 ◽  
Vol 56 (5) ◽  
pp. 861-868 ◽  
Author(s):  
Eiichiro Kokubo ◽  
Junichiro Makino
Keyword(s):  

Eos ◽  
1974 ◽  
Vol 55 (5) ◽  
pp. 540 ◽  
Author(s):  
C. C. Counselman ◽  
W. B. Hubbard ◽  
Ivan I. Mueller ◽  
S. J. Peale ◽  
R. H. Tolson

2019 ◽  
Vol 485 (4) ◽  
pp. 5490-5497 ◽  
Author(s):  
Hanno Rein ◽  
David M Hernandez ◽  
Daniel Tamayo ◽  
Garett Brown ◽  
Emily Eckels ◽  
...  

Abstract Hybrid symplectic integrators such as MERCURY are widely used to simulate complex dynamical phenomena in planetary dynamics that could otherwise not be investigated. A hybrid integrator achieves high accuracy during close encounters by using a high-order integration scheme for the duration of the encounter while otherwise using a standard second-order Wisdom–Holman scheme, thereby optimizing both speed and accuracy. In this paper we reassess the criteria for choosing the switching function that determines which parts of the Hamiltonian are integrated with the high-order integrator. We show that the original motivation for choosing a polynomial switching function in MERCURY is not correct. We explain the nevertheless excellent performance of the MERCURY integrator and then explore a wide range of different switching functions including an infinitely differentiable function and a Heaviside function. We find that using a Heaviside function leads to a significantly simpler scheme compared to MERCURY , while maintaining the same accuracy in short-term simulations.


2014 ◽  
pp. 38-43
Author(s):  
Alexander A. Onosov

Considers specific manifestations of the high technologies’ impact on the planetary dynamics of civilization. The author discusses prospects and risks of global human development produced by the dominance of technoculture, reviews the influence of information technologies on the type and general direction of cultural evolution of modern humans, and analyses transformations of their identity as that of the species.


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