Utilizing riometry to observe gravity waves in the sunlit mesosphere
نویسندگان
چکیده
منابع مشابه
On Shear-Generated Gravity Waves that Reach the Mesosphere. Part II: Wave Propagation
The propagation of Kelvin–Helmholtz (KH) shear-generated gravity waves through the summer stratosphere is investigated using ray tracing, taking into account back-reflection as well as wave dissipation due to precriticallayer breaking, radiative damping, and viscous diffusion. It is found that the transmission rate of upward– eastward waves to the mesosphere is surprisingly good, provided that ...
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The EISCAT VHF radar (69.4°N, 19.1°E) has been used to record vertical winds at mesopause heights on a total of 31 days between June 1990 and January 1993. The data reveal a motion ®eld dominated by quasi-monochromatic gravity waves with representative apparent periods of 30±40 min, amplitudes of up to 2.5 m s and large vertical wavelength. In some instances waves appear to be ducted. Vertical ...
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We present numerical simulations of penetrative convection and gravity wave excitation in the Sun. Gravity waves are self-consistently generated by a convective zone overlying a radiative interior. We produce power spectra for gravity waves in the radiative region as well as estimates for the energy flux of gravity waves below the convection zone. We calculate a peak energy flux in waves below ...
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chapter i provides an overview of structural linguistics and touches upon the saussurean dichotomies with the final goal of exploring their relevance to the stylistic studies of literature. to provide evidence for the singificance of the study, chapter ii deals with the controversial issue of linguistics and literature, and presents opposing views which, at the same time, have been central to t...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2003
ISSN: 0094-8276
DOI: 10.1029/2003gl017885