Results 191 to 200 of about 24,212,222 (226)

Inversion of the Loss Tangent of Martian Regolith From Echoes of Ultrawideband Ground Penetration Radar in the Tianwen-1 Mission

IEEE Geoscience and Remote Sensing Letters
In the Tianwen-1 Mars exploration mission, ultrawideband radar is carried by the Zhurong Martian rover. The exponential attenuation at the center frequency was applied to invert the loss tangent of Mars regolith in previous studies.
Niutao Liu, Yaqiu Jin, Xu Feng
semanticscholar   +1 more source

Simultaneous Two‐Point Study of the Martian Bow Shock Affected by an Interplanetary Coronal Mass Ejection: Tianwen‐1 and MAVEN Observations

Geophysical Research Letters
The Martian bow shock (BS) plays a significant role in the Martian plasma environment. Based on observations from Tianwen‐1 and MAVEN, we first report two cases of simultaneous two‐point crossings of the Martian BS affected by an interplanetary coronal ...
Ming Wang, Jiaqi Zhang, Jianyong Lu, L. Xie, Fuhao Qiao, Qi Xu, Jinyu Li, Guanchun Wei, Baohang Qu, Lei Li   +9 more
semanticscholar   +1 more source

Zero-shot remote sensing interpretation and analysis of transverse aeolian ridges in the “Tianwen-1” landing area

National Remote Sensing Bulletin
： Studying the morphological characteristics of transverse aeolian ridges can help reveal the interaction between the Martian thin atmosphere and the Martian surface.
Nannan Qin, Zhizhong Kang, Jianxin Hui, Pengjie Tao, Yiping Chen, Haiyan Guan, Xudong Tong   +6 more
semanticscholar   +1 more source

Progress and achievement of Tianwen-1 mission

Tianwen-1 mission is the first in the world to achieve Mars orbiting, landing and roving exploration through a single launch, and has developed technologies for planetary exploration launch and flight, planetary capture control, Mars entry and descent landing, Mars surface roving for Zhurong, scientific payload design and operation, long-distance deep ...
Yan Geng, Jianjun Liu, Lihua Zhang, Xiao Zhang   +3 more
openaire   +1 more source

Calibration of the Zero Offset of the Fluxgate Magnetometer on Board the Tianwen‐1 Orbiter in the Martian Magnetosheath

Journal of Geophysical Research: Space Physics
High‐precision measurements of the magnetic field are critical to explore the near‐Mars environment. The Mars Orbiter MAGnetometer (MOMAG) is one of seven payloads on board the Tianwen‐1 orbiter.
Guoqiang Wang, Sudong Xiao, Mingyu Wu, Yangdong Zhao, Song Jiang, Z. Pan, X. Hao, Yiren Li, Kai Liu, Y. Chi, Zhuxuan Zou, Manming Chen, Z. Su, C. Shen, Jingnan Guo, Long Cheng, Zhiyong Wu, Mengjiao Xu, Yuming Wang, Tielong Zhang   +19 more
semanticscholar   +1 more source

A New Global Reference Frame for Mars From Tianwen-1 Moderate Resolution Images

IEEE Geoscience and Remote Sensing Letters
The Moderate Resolution Imaging Camera (MoRIC) onboard the Tianwen-1 orbiter, China’s first Mars exploration mission, is a frame-imaging color camera.
Wei Yan, Xin Ren, Wangli Chen, Xingguo Zeng, Xiaoxia Zhang, X. Tan, Dingxin Liu, Lin Guo, Qing Zhang, Zhibin Li, Jingjing Zhang, Guobin Yu, Jianjun Liu   +12 more
semanticscholar   +1 more source

Tianwen-1 observations of Martian oxygen ion plumes

Mars does not possess an intrinsic magnetic field to shield it from solar wind invasion. Therefore, the ionized particles in the top atmosphere can thus interact with the solar wind and escape into interplanetary space. The solar wind convection electric field ESW can accelerate the oxygen ions in the Martian ionosphere and pick them up into space ...
Xiao Ma, Anmin Tian, Ruilong Guo, Shichen Bai, Lihui Chai, Linggao Kong, Wenya Li, Binbin Tang, Aibing Zhang, Quanqi Shi, Qiugang Zong   +10 more
openaire   +1 more source

Magnetohydrodynamic Modeling of Background Solar Wind near Mars: Comparison with MAVEN and Tianwen-1

Astrophysical Journal
Combined with data assimilation methods, a three-dimensional magnetohydrodynamic (MHD) numerical model is an effective tool to explore the mechanism of space weather.
Hanke Zhang, Fang Shen, Yi Yang, Y. Chi, C. Shen, Xinyi Tao   +5 more
semanticscholar   +1 more source

Seasonal variations of the Martian magnetosphere: Tianwen-1 observations

Mars exhibits a unique hybrid magnetospheric environment, characterized by interactions between the solar wind and both the ionosphere and the localized crustal magnetic fields. This configuration renders the Martian magnetosphere highly sensitive to external influences, including solar activity and seasonal variations.
Kai Fan, Yong Wei
openaire   +1 more source

Magnetic Field Data Calibration with Transformer Model Using Physical Constraints: A Scalable Method for Satellite Missions, Illustrated by Tianwen-1

arXiv.org
This study introduces a novel approach that integrates the magnetic field data correction from the Tianwen-1 Mars mission with a neural network architecture constrained by physical principles derived from Maxwell's equation equations.
Beibei Li, Y. Chi, Yuming Wang
semanticscholar   +1 more source