The physical processes effects on plankton, and the interactions between physical processes and biological processes are the main research field of GLOBEC. Estuary is an important area of human activities, complex dynamical processes and frail ecology. The importance of research on estuary has been gradually recognized since the research plan of LOICZ was put forward by IGBP. Estuarine ecosystem is similar to marine ecosystem in many aspects. However, because the biological condition and transport processes...