:::

最新消息

:::

<專題討論>2017/1/5(四)14:10綜合大樓2樓48218教室演講「Space Physics and Spaceflight: Connections and Advances in Astronautics and the Aerospace Environment」( 張起維 副教授 / 中央大學太空科學研究所 )

活動與演講
張貼人:呂惠靜公告日期:2017-01-03
裝飾性圖片
Since the launch of the first satellite as part of the 1957/1958 International Geophysical Year, the needs and capabilities of the solar-terrestrial physics and the astronautics communities have been intertwined. In this presentation, I will introduce some of the recent connections and trends from both perspectives as they relate to the study of the Earth’s upper atmosphere and its influence on aerospace systems. The Earth’s middle and upper atmosphere extends to altitudes as high as 1000 km, encompassing the stratosphere, mesosphere, and thermosphere, as well as the ionosphere. These regions form a protective shield for the Earth’s biosphere by absorbing harmful solar radiation, while their interaction with the Earth’s magnetic field and solar wind play an important role in preventing atmospheric loss. These regions are also the operational and reentry environment for spacecraft in Low Earth Orbit, forming one of the largest orbital perturbations for LEO satellites. Additionally, the ionosphere has long been known for its effects on terrestrial and satellite radio communications. The observational needs of the scientific community are also an important driver behind the development of new spacecraft platforms and mission concepts for this region. As an example of the trend towards utilizing small satellite platforms for this purpose, I will also introduce the mission definition and feasibility analysis for a concept CubeSat mission to explore the temperature and wind fields of the upper atmosphere. The lessons learned in this process demonstrate the trade offs required, as well as the importance of collaboration between the scientific and engineering communities.
附加檔案:
最後修改時間:2017-01-03 PM 4:04

系所位置所務行政表單下載學生會畢業生專區