搜索结果: 1-15 共查到“知识库 天文学 Mars”相关记录18条 . 查询时间(0.076 秒)
ILLUMINATION INVARIANT CHANGE DETECTION (IICD): FROM EARTH TO MARS
Illumination Planetary Surface Change Detection Phase Correlatio Saliency Active Contour
2018/5/15
Multi-temporal Earth Observation and Mars orbital imagery data with frequent repeat coverage provide great capability for planetary surface change detection. When comparing two images taken at differe...
Interactive evolution of multiple water-ice reservoirs on Mars: Insights from hydrogen isotope compositions
Mars water ice isotope atmospheric escape
2017/4/10
Remote sensing data from orbiter missions have proposed that ground ice may currently exist on Mars, although the
volume is still uncertain. Recent analyses of Martian meteorites have suggested that ...
Crater clusters on Mars:Shedding light on martian ejecta launch conditions
Cratering Mars Meteorites Impact processes
2015/12/25
We have identified two classes of crater clusters on Mars. One class is “small clusters” (crater diameter D ～ tens m, spread over few hundred m), fitting our earlier calculations for the breakup of we...
Gone with the Wind ON_Mars (GOWON): A Wind-Driven Networked System of Mobile Sensors on Mars
Gone the Wind ON_Mars GOWON Wind-Driven Networked System Mobile Sensors Mars
2012/2/24
We propose a revolutionary way of studying the surface of Mars using a wind-driven network of mobile sensors- Gone with the Wind ON_Mars (GOWON). GOWON is a scalable architecture that will allow in-si...
The Potential Importance of Non-Local, Deep Transport on the Energetics, Momentum, Chemistry, and Aerosol Distributions in the Atmospheres of Earth, Mars and Titan
Non-Local Deep Transport the Energetics
2011/1/11
A review of non-local, deep transport mechanisms in the atmosphere of Earth provides a good foundation for examining whether similar mechanisms are operating in the atmospheres of Mars and Titan. On E...
Accumulation and erosion of south polar layered deposits in the Promethei Lingula region, Planum Australe, Mars
Promethei Lingula region geologic mapping Mars
2009/6/1
The geologic mapping of south polar layered deposits in the Promethei Lingula region, Planum Australe, Mars, indicates that aeolian-based South Polar Layered Deposit accumulation and erosion were cont...
Prediction of the structure of the martian upper atmosphere for the Mars Reconnaissance Orbiter (MRO) mission
Mars Reconnaissance Orbiter mapping orbit General Circulation Model predictions
2009/6/1
The Mars Reconnaissance Orbiter (MRO) spacecraft will undergo aerobraking from April through September 2006 in order to achieve the desired mapping orbit. This aerobraking process requires knowledge o...
Radiation effects and shielding requirements in human missions to the moon and Mars
radiation remains Mars human missions moon
2009/6/1
Protection from radiation remains a concern for lunar human missions and a major hurdle for Mars human missions. Quantitative estimates are provided.
Life support systems represent a critical element of human missions to Mars that potentially could require huge amounts of mass. Current life support technology for space stations are inadequate for t...
Transient liquid water near an artificial heat source on Mars
liquid water heat source Mars
2009/6/1
We describe the response of icy martian soil to a localized heat source using analytical and numerical models. Our motivation is to understand the implications of a landing failure in which a radioiso...
Coring basalt under Mars low pressure conditions
Coring basalt Mars low pressure conditions
2009/6/1
We report and evaluate drilling results in hard basalt under Mars low pressure conditions and introduce an equation that may be used to estimate drilling performance in hard formations.
Mission design options for human Mars missions
Trajectory options human Mars missions Mars entry velocities
2009/6/1
Trajectory options for conjunction-class human Mars missions are examined, including crewed Earth-Mars trajectories with the option for abort to Earth, with the intent of serving as a resource for mis...
Recent aeolian erosion and deposition in the north polar plateau of Mars
aeolian erosion Mars north polar plateau
2009/6/1
We have identified extensive dark regions in the north polar plateau of Mars, which are largely free of surface water-ice. We propose that represent zones of recent sedimentary accumulation.
Integrating GPR and CCRI techniques：Implications for the identification and mapping of ground ice on Mars
ground ice identification and mapping Mars
2009/6/1
Our results show that GPR and CCRI techniques effectively complement each other by resolving different characteristics of the subsurface. While GPR clearly showed the subsurface structures and interfa...
The Mars Orbiter Laser Altimeter dataset：Limitations and improvements
Mars Orbiter Laser Altimeter Limitations improvements
2009/6/1
This paper highlights the limitations of the Mars Orbiter Laser Altimeter (MOLA) dataset, and presents an improved alternative: UWMOLA, based on a different interpolation algorithm.