Tidal Friction and Ice Ages
نویسندگان
چکیده
منابع مشابه
Coherence resonance and ice ages
[1] The processes and feedbacks responsible for the 100-kyr cycle of Late Pleistocene global climate change are still being debated. This paper presents a numerical model that integrates (1) long-wavelength outgoing radiation, (2) the ice-albedo feedback, and (3) lithospheric deflection within the simple conceptual framework of coherence resonance. Coherence resonance is a dynamical process tha...
متن کاملTidal Friction and Tidal Lagging. Applicability Limitations of a Popular Formula for the Tidal Torque
Tidal torques play a key role in rotational dynamics of celestial bodies. They govern these bodies’ tidal despinning and also participate in the subtle process of entrapment of these bodies into spin–orbit resonances. This makes tidal torques directly relevant to the studies of habitability of planets and their moons. Our work begins with an explanation of how friction and lagging should be bui...
متن کاملThe Equilibrium-Tide Model for Tidal Friction
We derive from first principles equations governing (a) the quadrupole tensor of a star distorted by both rotation and the presence of a companion in a possibly eccentric orbit, (b) a functional form for the dissipative force of tidal friction, based on the concept that the rate of energy loss from a time-dependent tide should be a positive-definite function of the rate of change of the quadrup...
متن کاملSemidiurnal Tidal Motions in the Friction Layer
The obscrved semidiurnal wind in the troposphere at five niid-latmit,ude stations shows a, phase lead over the wind dcduccd from frictionlcss theory, and a smaller amplitude, espccially near the earth’s surface, than the theoretical value. By making use of the obscrved fact that the tidal pressure-dependent (frictionless) wind changes much less rapidly with height than does the observed wiiid i...
متن کاملAlgal Clues to Antarctic Ice Shelf Ages
1111 Algal Clues to Antarctic Ice Shelf Ages The naturally high variability of sea ice extent in Antarctica and the short duration of instrumental records have combined to obscure any clear record of sea ice coverage change. Curran et al. (p. 1203; see the Perspective by Wolff) present an ice core record of methanesulfonic acid, a species produced by algae living at the edges of ice shelves, wh...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1914
ISSN: 0028-0836,1476-4687
DOI: 10.1038/094254b0