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How do gravity waves triggered by a typhoon propagate from the troposphere to the upper atmosphere? [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
Gravity waves (GWs) strongly affect atmospheric dynamics and photochemistry and the coupling between the troposphere, stratosphere, mesosphere, and thermosphere. In addition, GWs generated by strong disturbances in the troposphere (e.g. thunderstorms and
Q. Li   +7 more
doaj   +1 more source

The Impact of Assimilating Ionosphere and Thermosphere Observations on Neutral Temperature Improvement: Observing System Simulation Experiments Using EnKF

open access: yesSpace Weather, 2021
Accurate specification of the thermosphere states is crucial to the low Earth orbit satellite operation. In this work, the impact of different ionosphere and thermosphere observing systems on the improvement of neutral temperature of the data ...
Jianhui He, Xinan Yue, Zhipeng Ren
doaj   +1 more source

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

The Effect of the Thermosphere on Ionosphere Outflows

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The Naval Research Laboratory (NRL) Sami2 is Another Model of the Ionosphere (SAMI2) and Sami3 is Also a Model of the Ionosphere (SAMI3) ionosphere/plasmasphere codes have shown that thermosphere composition and winds significantly affect H+ outflows ...
J. Krall, J. D. Huba
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

Gas-surface interactions modelling influence on satellite aerodynamics and thermosphere mass density

open access: yesJournal of Space Weather and Space Climate, 2021
The satellite acceleration data from the CHAMP, GRACE, GOCE, and Swarm missions provide detailed information on the thermosphere density over the last two decades.
March Günther   +5 more
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

Scientific motivations and future directions of whole atmosphere modeling

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The recent development of whole atmosphere models that extend from the surface to the upper thermosphere represents a significant advance in modeling capabilities of the ionosphere-thermosphere.
N. M. Pedatella, N. M. Pedatella
doaj   +1 more source

Recent progress on the retrieval and modeling of thermosphere mass density

open access: yes地球与行星物理论评, 2023
The thermosphere is the atmospheric layer extending from about 90 km to nearly 1000 kilometers, which is an important interreaction area between the Sun and the Earth.
Jiuhou Lei   +4 more
doaj   +1 more source

New thermosphere neutral mass density and crosswind datasets from CHAMP, GRACE, and GRACE-FO

open access: yesJournal of Space Weather and Space Climate, 2023
We present new neutral mass density and crosswind observations for the CHAMP, GRACE, and GRACE-FO missions, filling the last gaps in our database of accelerometer-derived thermosphere observations.
Siemes Christian   +8 more
doaj   +1 more source

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