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Unstable layers in the mesopause region observed with Na lidar during the Turbulent Oxygen Mixing Experiment (TOMEX) campaign
- Source :
- Journal of Geophysical Research. 109
- Publication Year :
- 2004
- Publisher :
- American Geophysical Union (AGU), 2004.
-
Abstract
- [1] The Na wind/temperature lidar located at Starfire Optical Range near Albuquerque, New Mexico, provided real time measurements of wind, temperature, and Na density in the mesopause region during the TOMEX rocket campaign in October 2000. The state of the atmosphere in which the rocket was launched into was examined using the lidar measurements. Both convectively and dynamically unstable layers were observed at various times and altitudes during the night. The low convective stability region below 90 km was found to be associated with the diurnal tide. The unstable layers are the combined results of wave and tidal perturbations. Comparison with the thermosphere/ionosphere/mesopshere/electrodynamics general circulation model (TIME-GCM) simulation showed that the model can produce the general feature of the observed atmospheric structure (but with a much smaller diurnal amplitude in temperature), which likely leads to underestimate of instability and gravity wave effects.
- Subjects :
- Convection
Atmospheric Science
business.product_category
Meteorology
Soil Science
Aquatic Science
Oceanography
Physics::Geophysics
Atmosphere
Geochemistry and Petrology
Earth and Planetary Sciences (miscellaneous)
Gravity wave
Physics::Atmospheric and Oceanic Physics
Earth-Surface Processes
Water Science and Technology
Ecology
Paleontology
Forestry
Geophysics
Lidar
Rocket
Space and Planetary Science
Physics::Space Physics
Mesopause
Environmental science
Astrophysics::Earth and Planetary Astrophysics
Ionosphere
Thermosphere
business
Subjects
Details
- ISSN :
- 01480227
- Volume :
- 109
- Database :
- OpenAIRE
- Journal :
- Journal of Geophysical Research
- Accession number :
- edsair.doi...........fc41e2b2aa259605164e33bcc5498aa6