Results 31 to 40 of about 36,481 (263)

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

open access: yesGeophysical 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   +6 more
doaj   +1 more source

Microbial growth in actual martian regolith in the form of Mars meteorite EETA79001

open access: yesCommunications Earth & Environment, 2023
Studies to understand the growth of organisms on Mars are hampered by the use of simulants to duplicate martian mineralogy and chemistry. Even though such materials are improving, no terrestrial simulant can replace a real martian sample.
Neveda Naz   +3 more
doaj   +1 more source

Martian Equatorial Atmospheric Tides From Surface Observations

open access: yesJournal of Geophysical Research: Planets, 2023
AbstractDiurnal solar radiation causes global oscillations in pressure, temperature, and wind fields, known as atmospheric tides, which are further modified by topography, surface properties, and atmospheric dust loading. Hence, the tides are a combination of sun‐synchronous and non sun‐synchronous tides that propagate around the planet both eastward ...
Joonas Leino   +7 more
openaire   +2 more sources

A GRADIENT-REGION CONSTRAINED LEVEL SET METHOD FOR AUTONOMOUS ROCK DETECTION FROM MARS ROVER IMAGE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Rocks are one of the major Martian surface features and yield significant information about the relevant geology process and the life exploration. However, autonomous Martian rock detection is still a challenging task due to the appearance similar to the
J. Yang, Z. Kang
doaj   +1 more source

Investigation on Computing Method of Martian Dust Fluid Based on the Energy Dissipation Method

open access: yesInternational Journal of Aerospace Engineering, 2020
In this paper, an initiative Martian dust fluid simulating research based on the energy dissipation method was developed to simulate the deposition process of Martian dust fluid which was caused by surface adhesion between particles and Martian rovers ...
Tianxiang Ding   +6 more
doaj   +1 more source

Validation of dMEREM, the Detailed Mars Energetic Radiation Environment Model, with RAD Data from the Surface of Mars

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The detailed Martian Energetic Radiation Environment Model (dMEREM) is a Geant4 based model developed for the European Space Agency, which enables to predict the radiation environment expected at different locations on the Martian orbit, atmosphere and ...
Patrícia Gonçalves   +3 more
doaj   +1 more source

Solar radiation incident on the Martian surface [PDF]

open access: yesJournal of Molecular Evolution, 1979
Calculations indicate that the maximum daily solar radiation reaching the Martian surface is about 325 cal/cm2 during southern hemisphere summer at latitude of about 40 degrees S. In the ultraviolet region of the spectrum, the radiation reaching the surface at wavelengths greater than 2800 A is within 10% of the radiation incident on the atmosphere ...
Atreya, Sushil K., Kuhn, William R.
openaire   +3 more sources

A Thermal Plume Model for the Martian Convective Boundary Layer

open access: yes, 2013
The Martian Planetary Boundary Layer [PBL] is a crucial component of the Martian climate system. Global Climate Models [GCMs] and Mesoscale Models [MMs] lack the resolution to predict PBL mixing which is therefore parameterized.
Colaïtis, Arnaud   +5 more
core   +3 more sources

The Mars system revealed by the Martian Moons eXploration mission

open access: yesEarth, Planets and Space, 2022
Japan Aerospace Exploration Agency (JAXA) plans a Phobos sample return mission (MMX: Martian Moons eXploration). In this study, we review the related works on the past climate of Mars, its evolution, and the present climate and weather to describe the ...
Kazunori Ogohara   +23 more
doaj   +1 more source

The Martian Surface Pressure

open access: yesThe Astrophysical Journal, 1967
Inconsistency in Martian surface pressure as calculated by Gray explained, using Leighton and Murray ...
Ronald A. Schorn, Louise D. Gray
openaire   +1 more source

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