Results 1 to 10 of about 2,844,466 (420)

Transient HCl in the atmosphere of Mars. [PDF]

Sci Adv, 2021
The discovery of chlorine in the martian atmosphere points to its surface origin.
Korablev O, Olsen KS, Trokhimovskiy A, Lefèvre F, Montmessin F, Fedorova AA, Toplis MJ, Alday J, Belyaev DA, Patrakeev A, Ignatiev NI, Shakun AV, Grigoriev AV, Baggio L, Abdenour I, Lacombe G, Ivanov YS, Aoki S, Thomas IR, Daerden F, Ristic B, Erwin JT, Patel M, Bellucci G, Lopez-Moreno JJ, Vandaele AC.   +25 more
europepmc   +13 more sources

Observations of Atmospheric Tides in the Middle and Upper Atmosphere of Mars From MAVEN and MRO. [PDF]

J Geophys Res Planets, 2022
Variability in the Martian upper atmosphere is strongly linked to the lower atmosphere and much of it can be attributed to vertical wave propagation. Atmospheric tides in particular are a well‐known phenomenon in the Martian atmosphere that play a key ...
Kumar A, England SL, Liu G, Jain S, Schneider NM.   +4 more
europepmc   +2 more sources

The atmosphere of Mars as observed by InSight [PDF]

Nature Geoscience, 2020
The atmosphere of Mars is thin, although rich in dust aerosols, and covers a dry surface. As such, Mars provides an opportunity to expand our knowledge of atmospheres beyond that attainable from the atmosphere of the Earth. The InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) lander is measuring Mars’s atmosphere ...
Özgür Karatekin, Nicholas A Teanby, Ehouarn Millour, Domenico Giardini, Constantinos Charalambous, Ralph D. Lorenz, François Forget, A. Lepinette, M. M. Baker, Eric Beucler, Stephen Sackett, Stephen R. Lewis, David Mimoun, William T. Pike, Mercedes Marin-Jimenez, Catherine L. Johnson, Matthew P. Golombek, Raphaël F. Garcia, Aymeric Spiga, Veronique Ansan, Javier Gómez-Elvira, Balthasar Kenda, Sara Navarro, Tilman Spohn, Tristram Warren, Ingrid Daubar, John Clinton, Bart Van Hove, Savas Ceylan, Alexander E. Stott, Taichi Kawamura, A. Jacob, Mark T. Lemmon, Claire E. Newman, Clément Perrin, Lucie Rolland, V. Peinado, L. Martire, Sebastien Rodriguez, Sebastien Rodriguez, Luis Mora-Sotomayor, Don Banfield, Brian Carcich, Nils Mueller, Christopher T. Russell, Philippe Lognonné, Philippe Lognonné, Naomi Murdoch, J. Torres, Jorge Pla-Garcia, Jorge Pla-Garcia, Anni Määttänen, Simon Stähler, K. Hurst, Antonio Molina, J. A. Rodríguez-Manfredi, Anna Mittelholz, J. B. McClean, Rudolf Widmer-Schnidrig, W. Bruce Banerdt, Antoine Lucas, Justin N. Maki, Daniel Viúdez-Moreiras, Suzanne E. Smrekar   +63 more
openaire   +13 more sources

Constraints on the Size and Composition of the Ancient Martian Atmosphere from Coupled CO2–N2–Ar Isotopic Evolution Models [PDF]

The Planetary Science Journal, 2023
Present-day Mars is cold and dry, but mineralogical and morphological evidence shows that liquid water existed on the surface of ancient Mars. In order to explain this evidence and assess ancient Mars’s habitability, one must understand the size and ...
Trent B. Thomas, Renyu Hu, Daniel Y. Lo
doaj   +2 more sources

Structure and composition of the neutral upper atmosphere of Mars from the MAVEN NGIMS investigation. [PDF]

Geophys Res Lett, 2015
The Mars Atmosphere and Volatile EvolutioN (MAVEN) Neutral Gas and Ion Mass Spectrometer (NGIMS) provides sensitive detections of neutral gas and ambient ion composition.
Mahaffy PR, Benna M, Elrod M, Yelle RV, Bougher SW, Stone SW, Jakosky BM.   +6 more
europepmc   +2 more sources

Wind measurements in Mars' middle atmosphere at equinox and solstice: IRAM Plateau de Bure interferometric CO observations [PDF]

Second workshop on Mars atmosphere modelling and observations, held February 2 7 - March 3, 2006 Granada, Spain. Edited by F. Forget, M.A. Lopez-Valverde, M.C. Desjean, J.P. Huot, F. Lefevre, S. Lebonnois, S.R. Lewis, E. Millour, P.L. Read and R.J. Wilson. Publisher : LMD, IAA, AOPP, CNES, ESA, 2006., p.134, Espagne (2006), 2007
Characterizing the Martian atmosphere is an essential objective to understand its meteorology and its climate. The lower atmosphere (< 40 km) and middle atmosphere (40-80 km) of Mars appear dynamically coupled at much higher levels than in the case of the Earth.
R. Moreno, E. Lellouch, Thérèse Encrenaz, F. Forget, Éric Chassefière, F. Hourdin, S. Guilloteau   +6 more
openalex   +3 more sources

Precipitation of Hydrogen Energetic Neutral Atoms at the Upper Atmosphere of Mars [PDF]

Journal of Geophysical Research: Space Physics, 2018
We study the properties of neutral hydrogen atoms precipitating onto the upper atmosphere of Mars. Energetic neutral atoms (ENAs) are produced by the charge exchange process between protons of solar wind (both upstream and shocked) as well as planetary ...
Xiao-Dong Wang, Markku Alho, R. Järvinen, E. Kallio, S. Barabash, Yoshifumi Futaana   +5 more
openalex   +2 more sources

Unique, non‐Earthlike, meteoritic ion behavior in upper atmosphere of Mars

Geophysical Research Letters, 2017
Interplanetary dust particles have long been expected to produce permanent ionospheric metal ion layers at Mars, as on Earth, but the two environments are so different that uncertainty existed as to whether terrestrial‐established understanding would ...
J. M. Grebowsky, M. Benna, J. M. C. Plane, G. A. Collinson, P. R. Mahaffy, B. M. Jakosky   +5 more
doaj   +2 more sources

Primordial argon isotope fractionation in the atmosphere of Mars measured by the SAM instrument on Curiosity and implications for atmospheric loss. [PDF]

Geophys Res Lett, 2013
The quadrupole mass spectrometer of the Sample Analysis at Mars (SAM) instrument on Curiosity rover has made the first high‐precision measurement of the nonradiogenic argon isotope ratio in the atmosphere of Mars. The resulting value of 36Ar/38Ar = 4.2 ± 
Atreya SK, Trainer MG, Franz HB, Wong MH, Manning HL, Malespin CA, Mahaffy PR, Conrad PG, Brunner AE, Leshin LA, Jones JH, Webster CR, Owen TC, Pepin RO, Navarro-González R.   +14 more
europepmc   +2 more sources

EMIRS Observations of the Aphelion‐Season Mars Atmosphere [PDF]

Geophysical Research Letters, 2022
Thermal infrared spectra taken by the Emirates Mars Infrared Spectrometer (EMIRS) on‐board the Emirates Mars Mission (EMM) spacecraft are well suited for the retrieval of surface temperatures, the atmospheric temperature profile from the surface to ∼40 ...
Michael D. Smith, Khalid Badri, Samuel A. Atwood, Christopher S. Edwards, Philip R. Christensen, Michael J. Wolff, Tanguy Bertrand, François Forget, Eman Al Tunaiji, Christopher Wolfe, Nathan Smith, Saadat Anwar   +11 more
doaj   +2 more sources