Results 41 to 50 of about 24,137 (262)

Long-term variability of CO2 and O in the Mars upper atmosphere from MRO radio science data [PDF]

, 2015
We estimate the annual variability of CO2 and O partial density using approximately 6years of Mars Reconnaissance Orbiter (MRO) radio science data from August 2006 to January 2012, which cover three full Martian years (from the northern hemisphere summer
Fricke, Susan K., Genova, Antonio, Goossens, Sander, Lemoine, Frank G., Mazarico, Erwan, Smith, David E., Zuber, Maria T.   +6 more
core   +1 more source

Center for geospace storms graduate student workshop

Frontiers in Astronomy and Space Sciences
The US National Aeronautics and Space Administration (NASA) DRIVE Center for Geospace Storms (CGS) hosted a workshop for graduate students conducting research in geospace science in November 2024.
Amy Keesee, Viacheslav G. Merkin, Michael Wiltberger, Stephen Hale, Eric Winter, Nikhil Rao   +5 more
doaj   +1 more source

Influence of parameterized small-scale gravity waves on the migrating diurnal tide in Earth's thermosphere

, 2017
Effects of subgrid-scale gravity waves (GWs) on the diurnal migrating tides are investigated from the mesosphere to the upper thermosphere for September equinox conditions, using a general circulation model coupled with the extended spectral nonlinear GW
Medvedev, Alexander S., Yiğit, Erdal
core   +1 more source

The atmospheres of Mars and Venus [PDF]

, 1971
Of all the planets which may exist in the Universe, only nine have been studied by man. As a result, one cannot classify planets with the same confidence that one has in classifying stars; there is no theory of planetary evolution comparable in ...
Ingersoll, Andrew P., Leovy­, Conway B.
core   +1 more source

Vertical damping of gravity waves evaluated from ACS-TGO solar occultation measurements on Mars

Frontiers in Astronomy and Space Sciences
Amplitudes of gravity waves generated in the lower and denser atmospheric layers grow exponentially with height as they propagate to the upper and thinner atmosphere, where they are reduced by various processes.
Ekaterina D. Starichenko, Alexander S. Medvedev, Denis A. Belyaev, Anna A. Fedorova, Alexander Trokhimovskiy, Paul Hartogh, Franck Montmessin, Oleg I. Korablev   +7 more
doaj   +1 more source

Long-term variations of the upper atmosphere parameters on Rome ionosonde observations and their interpretation

Journal of Space Weather and Space Climate, 2017
A recently proposed self-consistent approach to the analysis of thermospheric and ionospheric long-term trends has been applied to Rome ionosonde summer noontime observations for the (1957–2015) period.
Perrone Loredana, Mikhailov Andrey, Cesaroni Claudio, Alfonsi Lucilla, Santis Angelo De, Pezzopane Michael, Scotto Carlo   +6 more
doaj   +1 more source

Upper atmospheres and ionospheres of planets and satellites

, 2017
The upper atmospheres of the planets and their satellites are more directly exposed to sunlight and solar wind particles than the surface or the deeper atmospheric layers.
A Bhardwaj, A García Muñoz, A Mahieux, A Pätzold, A Seiff, A Sánchez-Lavega, A-S Wong, AJ Coates, AJ Friedson, AJ Kliore, AJ Kliore, AN Volkov, BM Jakosky, BM Jakosky, CD Parkinson, CGA Smith, CGA Smith, D Grodent, D Snowden, D Snowden, DC Catling, DL Huestis, DM Hunten, DP Hinson, E Lellouch, F González-Galindo, F Herbert, FJ Crary, GF Lindal, GF Lindal, GF Lindal, GM Keating, GMP Schubert, H Feuchtgruber, H Lammer, HB Niemann, ICF Mueller-Wodarg, ICF Müller-Wodarg, ICF Müller-Wodarg, ICF Müller-Wodarg, J Cui, J O’Donoghue, J-E Wahlund, J. M. Grebowsky, JEP Connerney, JH Waite Jr, JI Moses, JI Moses, JL Bertaux, JL Fox, JL Fox, JL Fox, K Dennerl, KI Matcheva, KL Miller, L Ben-Jaffel, LA Young, LN Fletcher, M Fulchignoni, MC Liang, MF Vogt, MH Rees, MH Stevens, N Mangold, NM Schneider, P Drossart, P Lavvas, P Lavvas, P Lavvas, P Withers, P Withers, P Withers, RJ Vervack Jr, RK Choudhary, RR Meier, RT Clancy, RT Clancy, RV Yelle, RV Yelle, RV Yelle, RV Yelle, RV Yelle, RW Schunk, S Miller, S Miller, SG Edgington, SJ Bauer, SV Badman, SW Bougher, SW Bougher, T Koskinen, T Majeed, T Majeed, TD Robinson, TE Cravens, TG Slanger, TH Zurbuchen, TJ Stubbs, TK Greathouse, TL Zhang, TT Koskinen, TT Koskinen, TT Koskinen, V Vuitton, V Vuitton, V. Vuitton, VA Krasnopolsky, W Liu, YH Kim, YH Kim   +109 more
core   +1 more source

Martian Thermospheric Warming Associated With the Planet Encircling Dust Event of 2018

Geophysical Research Letters, 2020
We report the first observations of Martian thermospheric warming associated with the Planet Encircling Dust Event (PEDE) of 2018. We used dayglow observations made by the Imaging Ultraviolet Spectrograph instrument aboard the MAVEN spacecraft to ...
S. K. Jain, S. W. Bougher, J. Deighan, N. M. Schneider, F. González Galindo, A. I. F. Stewart, R. Sharrar, D. Kass, J. Murphy, D. Pawlowski   +9 more
doaj   +1 more source

The Upper Atmosphere of HD17156b

, 2008
HD17156b is a newly-found transiting extrasolar giant planet (EGP) that orbits its G-type host star in a highly eccentric orbit (e~0.67) with an orbital semi-major axis of 0.16 AU.
A. D. Aylward, Anicich, Auerbach, Banks, Baulch, Erkaev, Fischer, Fischer, Hummer, Hut, Irwin, Koskinen, Liang, Press, Ribas, S. Miller, Schneiter, Shkolnik, Storey, Sundstrom, T. T. Koskinen, Tian, Vidal-Madjar, Vidal-Madjar, Yan   +24 more
core   +1 more source

Dynamics of the Thermosphere

Journal of the Meteorological Society of Japan. Ser. II, 2007
Major advances in our understanding of the dynamics of Earth's thermosphere (≈ 90-500 km) during the past 25 years are reviewed. Since the thermosphere is primarily an externally-forced system, a broad overview of the energy input, conversion and transport mechanisms in the ionosphere-thermosphere system is first provided. This serves as background and
openaire   +3 more sources