Superrotation of upper atmosphere by global deposition of meteoroids |
| |
| Authors: | Ved Mitra |
| |
| Institution: | Physics Department, M.N.R. Engineering College, Allahabad, India |
| |
| Abstract: | A new theory of the superrotation of upper atmosphere is worked out on the basis of global deposition of meteoroids assuming that a certain constant influx of meteoroids is continually falling upon the Earth's atmosphere. On the average the meteoroids are shown to carry a greater amount of orbital angular momentum than that corresponding to the Earth's orbit about the Sun. It is argued that the excess of orbital angular momentum appears as extra spin angular momentum in the atmospheric layer in which the meteoroids are arrested and this is used to calculate the velocity difference which can be maintained across a certain layer of the atmosphere. It is found that a global deposition of 34 tons/day of meteoric material is required to account for the observed superrotation which agrees with the recent estimates on meteoric mass influx on the Earth. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
