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Radiative damping of gravity waves in the terrestrial planetary atmospheres
Author(s) -
Imamura Takeshi,
Ogawa Toshihiro
Publication year - 1995
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/94gl02998
Subject(s) - atmosphere (unit) , radiative transfer , atmosphere of venus , mars exploration program , altitude (triangle) , atmosphere of mars , gravity wave , venus , atmospheric sciences , physics , geophysics , gravitational wave , environmental science , astrobiology , martian , meteorology , astronomy , geometry , mathematics , quantum mechanics
We investigated the scale‐dependent radiative damping of internal gravity waves on the limit of amplitude growth with height in the altitude region 60–120 km of the terrestrial planetary atmospheres. The radiative damping due to the CO 2 15 µm radiation limits wave propagation much more effectively in the Mars atmosphere than in the Earth's atmosphere. Though radiative damping is as effective in the Venus atmosphere as in the Mars atmosphere at ∼120 km altitude, it is not so effective below ∼100 km altitude. The damping due to molecular diffusion is significant compared to radiative damping above ∼80 km altitude on the Earth and above ∼120 km altitude on Mars, whereas on Venus it is not significant even above ∼120 km altitude.