Early Mars--how warm and how wet? [PDF]
Covered: the Martian water cycle; Martian paleoclimatology; CO2/CH4 atmosphere on early Mars; Noachian hydrology; early Martian environment; Martian weathering; nitrogen isotope ratios; CO2 evolution on Mars; and climate change.sponsored by MSATT Study ...
core +4 more sources
Evaluation of the Atmospheric Chemical Entropy Production of Mars
Thermodynamic disequilibrium is a necessary situation in a system in which complex emergent structures are created and maintained. It is known that most of the chemical disequilibrium, a particular type of thermodynamic disequilibrium, in Earth’s ...
Alfonso Delgado-Bonal+1 more
doaj +1 more source
Martian Bow Shock and Magnetic Pile-Up Barrier Formation Due to the Exosphere Ion Mass-Loading [PDF]
Bow shock, formed by the interaction between the solar wind and a planet, is generated in different patterns depending on the conditions of the planet.
Eojin Kim+6 more
doaj +1 more source
Mars' atmospheric neon suggests volatile-rich primitive mantle [PDF]
Martian atmospheric neon (Ne) has been detected by Viking and also found as trapped gas in Martian meteorites, though its abundance and isotopic composition have not been well determined. Because the timescale of Ne loss via atmospheric escape estimated from recent measurements with MAVEN is short (0.6--1 $\times$ 10$^8$ years), the abundance and ...
arxiv +1 more source
Tianwen-1 and MAVEN Observations of the Response of Mars to an Interplanetary Coronal Mass Ejection
Interplanetary coronal mass ejections (ICMEs) are solar transients that have significant effects on the upper atmosphere and ionosphere of Mars. The simultaneous spacecraft observations from Tianwen-1/MOMAG in solar wind and multiple instruments on board
Bingkun Yu+24 more
doaj +1 more source
Model for Nitric oxide and its dayglow emission in the Martian upper atmosphere using NGIMS/MAVEN measured neutral and ion densities [PDF]
A comprehensive study of Nitric oxide (NO) chemistry in the Martian upper atmosphere is restricted due to the lack of requisite measurements. NO is an abundant form of odd nitrogen species in the Martian lower atmosphere and its density depends on several photochemical processes.
arxiv +1 more source
The dust storm and its interaction with atmospheric waves on Mars
Mars shares many similarities with Earth. The comparative study of the climate between the two planets is of great significance to understand the evolution of the Earth's atmosphere.
Zhaopeng Wu, Jing Li, Tao Li, Jun Cui
doaj +1 more source
Martian Proton Aurora Brightening Reveals Atmospheric Ion Loss Intensifying
The Martian proton aurora is a distinct aurora phenomenon resulting from the direct deposition of solar wind energy into Mars' dayside atmosphere. What solar wind parameters influence the aurora activity in the short term is yet unknown, as are the ...
Fei He+12 more
doaj +1 more source
Thermospheric density responses to Martian dust storm in autumn based on MAVEN data
The unique seasonal surface dust storms on Mars have a significant impact on the Martian atmosphere. However, due to the lack of observations, semi-empirical models are difficult to simulate the density changes in the thermosphere with the existence of ...
Peng Han+3 more
doaj
Earth – Mars Similarity Criteria for Martian Vehicles [PDF]
In order to select the most efficient kind of a martian exploring vehicle, the similarity criteria are deduced from the equilibrium movement in the terrestrial and martian conditions.
Octavian TRIFU, George SAVU
doaj +1 more source