南海西部科学综合考察实验研究

The Comprehensive Fields Investigation Experiment over the Western South China Sea in 2014 will be undertaken in August 2014. The survey areas include the western Guangdong shelf-continental region, off Pearl river estuary region, the eastern Hainan upwelling region, southeastern Hainan region, Vietnam offshore jet region. This survey covers multi-fields with Physical Oceanography, Marine Meteorology, Marine Optics, Marine Ecology, Marine Chemistry and Marine Geology. The whole voyage is about 3600 nm, including 14 transects and 116 observation stations. The travel time is about 40 days. Through this survey, we attempt to obtain the samples and regional marine environmental parameters record of the Western South China Sea. The outcome will help us to learn the characteristics and ecosystem dynamic process of upwelling, long-term trends of marine multi-scale eddy structures, environmental and ecological response in the Western South China Sea. In addition, we can obtain deeper understanding of the key biological pelagic ecosystem processes, the geological environment evolution and the formation mechanism of the cold spring in Western South China Sea.

2014年度南海西部综合实验研究航次拟采用实验三号船于2014年8月实施，其主要调查区域覆盖珠江口、粤西陆架陆坡、琼东上升流区域、琼东南深水海盆和西沙群岛海区，越南以东越南离岸流区域。调查学科涵盖物理海洋学、海洋气象、海洋光学、海洋生物生态、海洋化学和海洋地质，整个航次航程3600 海里，设置了14 条测线，116个CTD 观测站，合计作业时间40天。通过多学科综合调查，获取区域海洋样品和环境参数记录，更好地理解南海西部的海洋环境变化规律。研究南海西部上升流特征，海洋多尺度涡结构的长期变化趋势，陆架海域和近岸上升流区域生态系统动力过程，及其环境生态响应；了解浮游生态系统的关键生物过程；了解南海西部地质环境演变规律及南海西部冷泉形成机制。

2014国家基金委南海西部综合航次于2014年8月27日开始实施，整个航期35天，总行程4778海里，完成设置观测断面14条，观测站位总计125个，其中CTD综合站位106个，XCTD站位15个，LADCP站位94个。观测对象主要针对南海西部海洋海气相互作用、中尺度涡旋结构和动力学特征、研究南海西部上升流特征、上升流区域生态系统动力过程及其环境生态响应、南海西部典型海区的生物分布格局与多样性形成机制、了解南海西部地质环境演变规律及冷泉形成机制。为我国科学家研究南海海洋资源与环境、解决多学科重大科学问题等提供可靠的观测数据。