This anthology reviews the cooperation between scientists from Qingdao and scientists from Hamburg from the 1980s until about 2020. Initially, Professors Jürgen Sündermann (Hamburg University) and Wen Shengchang (Ocean University of China) were the primary drivers of this relationship, laying the groundwork for understanding the dynamics of China's marginal seas, and investigating how to build and run hydrodynamical models of the Bohai and Yellow Seas. Since 2010, this relationship has been further expanded by Professor Hans von Storch (Helmholtz-Zentrum Hereon) and Professor Chen Xueen (Ocean University of China).Statistics and Modeling of Regional Climate Variability in China focuses on this productive second phase, and deals with methodologies, reconstructions, and potential future climate changes mainly in the Chinese marginal seas. The book reproduces 12 articles that arose from this shared research and contributed significantly to the existing knowledge base. The articles build upon each other, exploring useful applications such as wind energy and scenarios of possible future climate conditions, but also providing basic knowledge, for instance, regarding unforced variability ("noise"). Together they offer valuable insights into various facets of coastal oceanographic and climatic phenomena, and underscore the importance of international cooperation in advancing our understanding of the ocean and climate.