Results 51 to 60 of about 30,800 (166)

Preliminary Dual-Satellite Observations of Atmospheric Gravity Waves in Airglow

open access: yesAtmosphere, 2019
Atmospheric gravity waves (AGWs) are among the important energy and momentum transfer mechanisms from the troposphere to the middle and upper atmosphere.
Jia Yue   +9 more
doaj   +1 more source

The Structure and Dynamics of Hot Jupiter Upper Atmospheres [PDF]

open access: yes, 2017
Gas giant exoplanets orbiting close to their parent stars (``hot Jupiters") experience radiation and stellar wind flux $\sim 10^4$ times higher than solar system giants. Energy deposited at high altitude heats and ionizes their upper atmospheres, where densities are sufficiently low that magnetic forces can dominate the dynamics of the gas --- physics ...
openaire   +1 more source

Course on structure and dynamics of the upper atmosphere

open access: yesEos, Transactions American Geophysical Union, 1971
The International School of Atmospheric Physics, in Erice, Trapani, Sicily, is offering its second international course June 13–27, 1971. The subject of the course is ‘Structure and Dynamics of the Upper Atmosphere.’The School is devoted to physicists who are working in the general field of atmospheric and ionospheric physics and who wish to gain ...
openaire   +1 more source

Probability distribution function of the upper equatorial Pacific current speeds

open access: yesGeophysical Research Letters, 2008
The probability distribution function (PDF) of the upper (0–50 m) tropical Pacific current speeds (w), constructed from hourly ADCP data (1990–2007) at six stations for the Tropical Atmosphere Ocean project, satisfies the two‐parameter Weibull ...
Peter C. Chu
doaj   +1 more source

CUAD: Constellation for Upper Atmosphere Dynamics

open access: yes, 2018
This paper introduces a method of observing upper atmosphere (tropopause to over 200 Km, day and night) dynamics with simple small static passive broadband gas filtered imagers in low earth orbit. The method produces modulated signals by Doppler Scanning with Gas Filters (DSGF) and observing the atmosphere over a range of angles, from limb to nadir ...
Gordley, Larry   +3 more
openaire   +1 more source

The Vertical Structure of Tropical Temperature Change in Global Storm‐Resolving Model Simulations of Climate Change

open access: yesGeophysical Research Letters
Global storm‐resolving model (GSRM) simulations (kilometer‐scale horizontal resolution) of the atmosphere can capture the interaction between the scales of deep cumulus convection and the large‐scale dynamics and thermodynamic properties of the ...
Timothy M. Merlis   +10 more
doaj   +1 more source

A Multispecies Atmospheric Escape Model with Excited Hydrogen and Helium: Application to HD209458b

open access: yesThe Astrophysical Journal
Atmospheric escape shapes exoplanet evolution and star–planet interactions, with He I 10830 Å absorption serving as a key tracer of mass loss in hot gas giants.
Anna Ruth Taylor   +6 more
doaj   +1 more source

Dynamics investigation in the Venus upper atmosphere

open access: yes, 2016
The O_2 nightglow emissions in the infrared spectral range are important features to investigate dynamics at the mesospheric altitudes, in the planetary atmosphere. In this work, we analyzed the profiles obtained at limb by the VIRTIS spectrometer on board the Venus Express mission, acquired during the mission period from 2006-07-05 to 2008-08-15 to ...
MIGLIORINI, Alessandra   +5 more
openaire   +1 more source

Atmospheric Gravity Waves Modulated by the Magnetic Field Configuration

open access: yesThe Astrophysical Journal
Atmospheric gravity waves (AGWs) are buoyancy-driven waves excited by turbulent convection and contribute to the dynamics and energy transport of the lower solar atmosphere.
Oana Vesa   +4 more
doaj   +1 more source

Aeronomy of Mars: An observational study of the dynamic martian upper atmosphere

open access: yes, 2020
The Martian upper atmosphere is highly dynamic over both short and long temporal and spatial scales. Our understanding of this region primarily stems from a wealth of data gathered both in-situ and remotely from spacecraft orbiting the Red Planet. In 2014 NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft began orbiting Mars with the ...
openaire   +3 more sources

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