A brief overview on the issue on space physics and space weather

The main objective of this special issue of Chinese Journal of Geophysics is to highlight Chinese recent findings in the field of space physics and space weather. The special issue mainly refers to some reports presented at a workshop on Data processing and scientific analysis based on the Meridian Project. However, the special issue is also open for normal submission. There are 38 articles published in this special issue after being subjected to peer-review by two reviewers. The subject of these investigations covers ionosphere, middle and upper atmosphere, geomagnetism and magnetosphere, solar activity and solar wind. In particular, we have two articles to report the findings in planetary space environment. In this article, we will briefly highlight the key points of these works published in this special issue.