Results 11 to 20 of about 25,282 (206)

Stability of the Martian Atmosphere [PDF]

Science, 1972
A detailed chemical dynamic model is presented for a moist martian atmosphere. Recombination of carbon dioxide is catalyzed by trace amounts of water. The abundances of carbon monoxide and molecular oxygen should vary in response to changes in atmospheric water and atmospheric mixing.
M B, McElroy, T M, Donahue
openaire   +2 more sources

Strong Depletion of 13C in CO Induced by Photolysis of CO2 in the Martian Atmosphere, Calculated by a Photochemical Model

The Planetary Science Journal, 2023
The isotopic signature of atmospheric carbon offers a unique tracer for the history of the Martian atmosphere and the origin of organic matter on Mars. The photolysis of CO _2 is known to induce strong isotopic fractionation of the carbon between CO _2 ...
Tatsuya Yoshida, Shohei Aoki, Yuichiro Ueno, Naoki Terada, Yuki Nakamura, Kimie Shiobara, Nao Yoshida, Hiromu Nakagawa, Shotaro Sakai, Shungo Koyama   +9 more
doaj   +1 more source

Quantification of Carbonates, Oxychlorines, and Chlorine Generated by Heterogeneous Electrochemistry Induced by Martian Dust Activity

Geophysical Research Letters, 2023
Heterogeneous electrochemistry induced by Martian dust activity is an important type of atmosphere‐surface interaction that affects geochemical processes at the Martian surface and in the Martian atmosphere.
Alian Wang, Andrew W. Jackson, Neil C. Sturchio, Jen Houghton, Chuck Y. C. Yan, Kevin S. Olsen, Quincy H. K. Qu   +6 more
doaj   +1 more source

Optimal Technology Allocation of in the Life Support Subsystem with Maximum Reliability [PDF]

فناوری در مهندسی هوافضا, 2023
The atmosphere of the Red Planet or Mars contains 95% of carbon dioxide, 3% of nitrogen, 1.6% of argon and only a small amount of oxygen, and in terms of concentration is about one percent of the planet's atmosphere, which makes it virtually impossible ...
Milad Mahmoudi, A. B. Basohbate Novinzadeh, Farshad Pazooki   +2 more
doaj   +1 more source

Mie scattering and the Martian atmosphere [PDF]

Symposium - International Astronomical Union, 1971
It has been suggested that the discrepancy between radio occultation determinations of the Martian atmospheric surface pressure (3.8 to 7 mb) and those deduced from optical polarization measurements and a simple Rayleigh atmosphere model (about 10 mb) are the results of sub-micron sized aerosols in the Martian atmosphere.
Walter G. Egan, Kenneth M. Foreman
openaire   +1 more source

Clouds in the Martian Atmosphere [PDF]

, 2021
Although resembling an extremely dry desert, planet Mars hosts clouds in its atmosphere. Every day somewhere on the planet a part of the tiny amount of water vapor held by the atmosphere can condense as ice crystals to form mainly cirrus-type clouds. The existence of water ice clouds has been known for a long time and they have been studied for decades,
Määttänen, Anni, Montmessin, Franck
openaire   +3 more sources

A distinct ripple-formation regime on Mars revealed by the morphometrics of barchan dunes

Nature Communications, 2022
Dust storms on Mars drive water escape to space. Here, the authors show the impact Martian dust storms have on the abundance of atmospheric hydrogen and oxygen, and how this helps to overall oxidize the Martian atmosphere.
Lior Rubanenko, Mathieu G. A. Lapôtre, Ryan C. Ewing, Lori K. Fenton, Andrew Gunn   +4 more
doaj   +1 more source

Alternate oscillations of Martian hydrogen and oxygen upper atmospheres during a major dust storm

Nature Communications, 2022
Dust storms on Mars drive water escape to space. Here, the authors show the impact Martian dust storms have on the abundance of atmospheric hydrogen and oxygen, and how this helps to overall oxidize the Martian atmosphere.
Kei Masunaga, Naoki Terada, Nao Yoshida, Yuki Nakamura, Takeshi Kuroda, Kazuo Yoshioka, Yudai Suzuki, Hiromu Nakagawa, Tomoki Kimura, Fuminori Tsuchiya, Go Murakami, Atsushi Yamazaki, Tomohiro Usui, Ichiro Yoshikawa   +13 more
doaj   +1 more source

Simulation of Transient Topside Layer in the Martian Ionosphere

Remote Sensing, 2023
Many Mars missions, e.g., Mariner, Viking, Mars Global Surveyor (MGS), Mars Express (MEX), and Mars Atmosphere and Volatile Evolution (MAVEN), have been launched to study the Martian atmosphere.
Chunhua Jiang, Rong Tian, Lehui Wei
doaj   +1 more source

Anaerobic Photosynthesizers and their Potential to Create a Biosphere on the Surface of the Red Planet [PDF]

فناوری در مهندسی هوافضا, 2023
The atmosphere of the Red Planet or Mars contains 95% of carbon dioxide, 3% of nitrogen, 1.6% of argon and only a small amount of oxygen, and in terms of concentration is about one percent of the planet's atmosphere, which makes it virtually impossible ...
Fateme Mousavi
doaj   +1 more source