The relationship of current fluctuations on the Southeast United States shelf to fluctuations of the wind and gulf stream and the East China Sea analog

1988 ◽  
Vol 6 (2) ◽  
pp. 127-134 ◽  
Author(s):  
Mark Wimbush ◽  
Li Li
Author(s):  
Robert S. Ross

This chapter examines alliance dynamics in U.S.–China relations in Northeast Asia. It analyzes how each nation has used third-party coercive diplomacy to compel the other to restrain its allies' challenges to great power security. A major objective of U.S. policy toward North Korea and the corresponding tension of the Korean Peninsula has been to compel China to exercise greater control over North Korea's nuclear weapons program. A major objective of Chinese policy toward Japan and the corresponding tension in the East China Sea has been to compel the United States to restrain Japanese challenges to Chinese sovereignty claims in disputed waters in the East China Sea. For a brief period, third-party coercion contributed to greater U.S.–China cooperation as each country adjusted its policies toward its respective ally, easing regional tension and U.S.–China conflict.


Fishes ◽  
2021 ◽  
Vol 6 (4) ◽  
pp. 80
Author(s):  
Jinfei Hu ◽  
Ping Wang ◽  
Hailong Zhang

The East China Sea population of hairtail (Trichiurus lepturus, also known as T. japonicus) is a commercially important element of Chinese fisheries. Hairtail has long been widely exploited. Due to overfishing, however, its production declined over the years. One of solutions to this dilemma is to institute reasonable fishery policies. Generally, skillful short-term and long-term prediction of fish catch is a central tool for guiding the development of fishery policy. Accurate predictions require a comprehensive understanding of the relationship between fluctuations in fish catch and variability in both fishing effort and marine environmental conditions. To investigate the combined impact of fishing effort and marine environments on hairtail catch and to develop models to predict hairtail catch, we applied empirical dynamic modeling (EDM) to data on East China Sea fisheries, including hairtail catch, fishing effort, and marine environmental factors. EDM is an equation-free approach that enables the investigation of various complex systems. We constructed all possible multivariate EDM models to investigate the potential mechanisms affecting hairtail catch. Our analysis demonstrates that all key environmental factors (salinity, summer monsoon, sea surface temperature, precipitation, and power dissipation index of tropical cyclones) have an impact on nutrient supply, which we suggest is the central factor influencing hairtail catch. Finally, our comparison of EDM models with parametric models demonstrates that EDM models overwhelmingly outperform parametric models in analysis of these complex interactions.


Author(s):  
Huiping Xu ◽  
Changwei Xu ◽  
Rufu Qin ◽  
Yang Yu ◽  
Shangqin Luo ◽  
...  

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