Results 31 to 40 of about 35,386 (281)

The Martian Surface Pressure

open access: yesThe Astrophysical Journal, 1967
Inconsistency in Martian surface pressure as calculated by Gray explained, using Leighton and Murray ...
L. D. Gray, Ronald A. Schorn
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

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   +4 more sources

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

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

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

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

ESTIMATION OF AEOLIAN DUNE MIGRATION OVER MARTIAN SURFACE EMPLOYING HIGH PRECISION PHOTOGRAMMETRIC MEASUREMENTS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
At the present time, arguments continue regarding the migration speeds of Martian dune fields and their correlation with atmospheric circulation. However, precisely measuring the spatial translation of Martian dunes has been rarely successful due to the ...
J. Kim
doaj   +1 more source

A Mars Environment Chamber Coupled with Multiple In Situ Spectral Sensors for Mars Exploration

open access: yesSensors, 2021
Laboratory simulation is the only feasible way to achieve Martian environmental conditions on Earth, establishing a key link between the laboratory and Mars exploration. The mineral phases of some Martian surface materials (especially hydrated minerals),
Zhongchen Wu   +7 more
doaj   +1 more source

Effects of Charged Martian Dust on Martian Atmosphere Remote Sensing

open access: yesRemote Sensing, 2022
In this paper, the extinction property and optical depth of charged Martian dust at infrared band 3 THz–300 THz are studied using the Mie scattering theory.
Xuebang Gao   +3 more
doaj   +1 more source

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