Global phenomena observed in the Earth's upper atmosphere are the results of many complex processes, such as the energy and momentum input from the Sun (e.g., solar radiation and solar wind), the energy and momentum transport by atmospheric waves from the lower atmosphere, and various internal phenomena (e.g., electromagnetic energy transport, plasma convection, chemical reaction). To understand the mechanism of the long-term variation in the upper atmosphere, therefore, it is important to analyze various data (e.g., wind velocity and temperature in the atmosphere, auroral images, geomagnetic field, solar activity index, etc.) obtained by the global ground-based network observation.
So far, the upper atmospheric data have been individually archived and opened to public by each university or institute, however, most of the data have been used only in the limited research field. In addition, there were some cases where the data were analyzed by only a limited number of researchers and never opened to public.
Goals of the Project (in the second term: FY2015-FY2020)
We have three action plan in the second term (FY2015-FY2020) as follows:
1. To provide the infrastructure and opportunity of the upper atmospheric research for users, in particular, in emerging countries.
2. To provide our products and now-how for other fields and nurture human resources who can develop future database and utilize it.
3. To promote the use of various data in a wide range of fields and contribute to open science.
In the first term (FY2009-2014), we developed and released the metadata database and analysis software of the upper atmospheric data to promote the comprehensive analysis. Our main goal in the second term is to activate the science and achieve the outcomes of advanced research by improving our products and internationally expanding them. We provide our products and know-how accumulated in the first term to various fields and support the development of other projects. Furthermore, we contribute to the promotion of data-driven science through open data and open science.
The metadata database is an important tool that enables access to various data distributed across many databases and promotes interdisciplinary study. In the upper atmospheric science, such a tool is expected to be essential to clarify the mechanisms of various phenomena, such as the interaction between multiple layers in the Earth's complex system, the disturbances due to the interaction, and the long-term variation in the upper atmosphere. There is also a possibility that combining various types of data from many different science fields makes new discovery that has never been reported before.
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