Results 31 to 40 of about 24,137 (262)

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

High time resolution measurements of the thermosphere from Fabry-Perot Interferometer measurements of atomic oxygen [PDF]

open access: yes, 2007
Recent advances in the performance of CCD detectors have enabled a high time resolution study of the high latitude upper thermosphere with Fabry-Perot Interferometers(FPIs) to be performed.
E. A. K. Ford   +4 more
core   +3 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

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

Front Matter

open access: yesGeophysical Monograph Series, Page i-xiv., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
wiley  

+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

Extreme enrichment in atmospheric 15N15N. [PDF]

open access: yes, 2017
Molecular nitrogen (N2) comprises three-quarters of Earth's atmosphere and significant portions of other planetary atmospheres. We report a 19 per mil (‰) excess of 15N15N in air relative to a random distribution of nitrogen isotopes, an enrichment that ...
Fischer, Tobias P   +8 more
core   +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

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

Limb sounders tracking topographic gravity wave activity from the stratosphere to the ionosphere around midlatitude Andes [PDF]

open access: yes, 2015
Several studies have shown that the surroundings of the highest Andes mountains at midlatitudes in the Southern Hemisphere exhibit gravity waves (GWs) generated by diverse sources which may traverse the troposphere and then penetrate the upper layers if ...
Alexander   +41 more
core   +1 more source

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