A case study of convectively generated gravity waves coupling of the lower atmosphere and mesosphere-lower thermosphere (MLT) over the tropical region: An observational evidence
| Autor: | K. Niranjan Kumar, S. Eswaraiah, G. Venkata Chalapathi, P. Vishnu Prasanth, M. Venkat Ratnam, Jaewook Lee, Yong Ha Kim, S. V. B. Rao |
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| Rok vydání: | 2018 |
| Předmět: |
Convection
Physics Atmospheric Science 010504 meteorology & atmospheric sciences Gravitational wave Atmospheric sciences 01 natural sciences Physics::Geophysics Mesosphere law.invention Troposphere Atmosphere Geophysics Lidar Space and Planetary Science law 0103 physical sciences Astrophysics::Earth and Planetary Astrophysics Thermosphere Radar 010303 astronomy & astrophysics Physics::Atmospheric and Oceanic Physics 0105 earth and related environmental sciences |
| Zdroj: | Journal of Atmospheric and Solar-Terrestrial Physics. 169:45-51 |
| ISSN: | 1364-6826 |
| Popis: | We have utilized the Gadanki MST Radar and Rayleigh LIDAR to understand the vertical coupling between the lower atmosphere and mesosphere through the short-period gravity waves (GWs). The short-period GWs (20 min–2 h) are noticed both in the troposphere and in the mesosphere during the deep convection. During the convection, the large vertical velocities (>5 m/s) and significant variations in the momentum flux (∼3 m2/s2) are noticed in the troposphere and higher fluxes (∼45 m2/s2) are evidenced in the mesosphere. The observations suggest the vertical coupling between the lower and middle atmosphere during convection. |
| Databáze: | OpenAIRE |
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