Results 1 to 10 of about 34,607 (157)

MANGO: An Optical Network to Study the Dynamics of the Earth's Upper Atmosphere

open access: yesJournal of Geophysical Research: Space Physics, 2023
The Mid-latitude All-sky-imaging Network for Geophysical Observations (MANGO) employs a combination of two powerful optical techniques used to observe the dynamics of Earth’s upper atmosphere: wide-field imaging and high-resolution spectral interferometry.
Leslie Lamarche   +2 more
exaly   +2 more sources

Active upper-atmosphere chemistry and dynamics from polar circulation reversal on Titan [PDF]

open access: yesNature, 2012
Saturn's moon Titan has a nitrogen atmosphere comparable to Earth's, with a surface pressure of 1.4 bar. Numerical models reproduce the tropospheric conditions very well but have trouble explaining the observed middle-atmosphere temperatures, composition and winds.
Sandrine Vinatier   +2 more
exaly   +4 more sources

conference on composition and dynamics of the upper atmosphere [PDF]

open access: yesBulletin of the American Meteorological Society, 1969
Roy L. Lamberth, Willis L. Webb
exaly   +2 more sources

Effects of Latitude-Dependent Gravity Wave Source Variations on the Middle and Upper Atmosphere

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Atmospheric gravity waves (GWs) are generated in the lower atmosphere by various weather phenomena. They propagate upward, carry energy and momentum to higher altitudes, and appreciably influence the general circulation upon depositing them in the middle
Erdal Yiğit   +2 more
doaj   +1 more source

Historical line of airglow observations at Comandante Ferraz Brazilian Station: measurements of temperature and studies on gravity waves

open access: yesAnais da Academia Brasileira de Ciências, 2023
The thermal dynamics of the upper atmosphere, especially in the mesosphere, have been improving our understanding about the effects of climate change, as well as how the dynamics and general circulation in the upper atmosphere are driven by different ...
JOSÉ VALENTIN BAGESTON   +8 more
doaj   +1 more source

Neutral winds from mesosphere to thermosphere—past, present, and future outlook

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The Earth’s upper atmosphere (85–550 km) is the nearest region of geospace and is highly dynamic in nature. Neutral winds impact a large portion of the dynamics in this region.
Manbharat Dhadly   +8 more
doaj   +1 more source

The upper-atmosphere extension of the ICON general circulation model (version: ua-icon-1.0) [PDF]

open access: yesGeoscientific Model Development, 2019
How the upper-atmosphere branch of the circulation contributes to and interacts with the circulation of the middle and lower atmosphere is a research area with many open questions.
S. Borchert   +6 more
doaj   +1 more source

Spatial and temporal correlations of thermospheric zonal winds from GOCE satellite observations

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Winds in the thermosphere play an important role in the transport of momentum and energy in the upper atmosphere and affect the composition, dynamics and morphology of the ionospheric plasma.
Ivana Molina, Ludger Scherliess
doaj   +1 more source

Longitudinal variability of thermospheric zonal winds near dawn and dusk

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Understanding the morphology and dynamics of the thermosphere is key to understanding the Earth’s upper atmosphere as a whole. Thermospheric winds play an important role in this process by transporting momentum and energy and affecting the composition ...
Ivana Molina, Ludger Scherliess
doaj   +1 more source

Impact of Solar Activity on Global Atmospheric Circulation Based on SD-WACCM-X Simulations from 2002 to 2019

open access: yesAtmosphere, 2021
In this study, a global atmospheric model, Specified Dynamics Whole Atmosphere Community Climate Model with thermosphere and ionosphere eXtension (SD-WACCM-X), and the residual circulation principle were used to study the global atmospheric circulation ...
Chen-Ke-Min Teng   +3 more
doaj   +1 more source

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