东印度洋综合科学考察实验研究

The East India ocean comprehensive scientific survey cruise would be carry out by “SY1” which belongs to South China Sea Institute of Oceanology. This cruise is expected in 2013 February. Sailing distance is about 9000 nautical miles, consists of 67 CTD stations. This cruise will do several real-time investigation of the east India ocean containing thermal, salinity, current, sea surface hydrological observation, air-sea boundary layer observation, biological and geological surface trawl cylindrical sampling and other hand section to the east to India ocean marine environmental parameters were observed, mainly about eastern India ocean environmental problems. It should be a good way to understand and explore the relationship of global climate change with East India Ocean, ocean atmosphere interaction, environmental and ecological process in the regional response. India Ocean and the South China Sea are closely related. It would have some important marine meteorological dynamics on the South China Sea. Through the East India ocean cruise, do the East India ocean marine environment investigation, study the marine ecological environment changing. It should be a scientific basis to the South China Sea Economic and social coordination, sustainable development and decision-making. Through the comprehensive study of East India ocean cruise, it strengthens east India Ocean long-time data accumulation, promotes marine sea research in the South China Sea and the surrounding waters of combination. It would have the strategic significance to in the long-term development of our country in marine research.

东印度洋综合科学考察航次由中国科学院南海海洋研究所“实验1”船执行。此次东印度洋航次预计将于2013 年4 月出航，计算航行距离为9000 海里，共设大面站67 个，利用海洋温盐、海流、海表水文观测、海气边界层观测、采水、生物地质拖网、地质表层柱状采样等各种手段对东印度洋海洋环境条件参数进行观测，主要针对东印度洋海洋环境问题，了解和探索全球气候变化背景下东印度洋海区海洋动力、海洋大气相互作用、环境与生态过程的区域响应。印度洋和南海密切相关，它的海洋气象动力过程对南海海洋过程影响深远，通过东印度洋航次对东印度洋的海洋环境因素进行调查，研究南海海洋生态环境要素的变化，对南海经济与社会协调、可持续发展与决策提供科学依据。通过东印度洋综合考察航次，加强东印度洋海洋现场数据的长期积累，促进南海海洋研究与周边海域研究相结合，对我国在海洋研究的长远发展具有战略性意义。

2013年3月基金委东印度洋海洋学综合科学考察由中国科学院南海洋研究所“实验1”科考船执行，历时65 天，航行10470海里。水文进行了96个CTD大面站观测，投放CTD共计141次，5次全深度观测。另外进行全程走航ADCP观测、自动气象站观测、GPS探空观测等。地质考察组完成18个站位，海底热流测量和生物样采集，其中获得 8个海底热流数据， 获得15个站位微生物底样。海洋生态与遥感考察组获取海水200m以上的海色数据（主要是Chl-a）、溶解无机碳、溶解无机碳、溶解无机碳 DIC、全程海表层的二氧化碳分压（pCO2,sw ）观测和海洋上层的大气溶胶（AOT）数据。海洋化学考察组采集了96 个站位的水样，包括66 个既定站位和30个走航站位，得到营养盐样品587个，溶解氧样品587个，总碱度样品587个，叶绿素样品587个，生物样品100多个。清华大学考察人员完成了33个站位采样，共采集不同深度样本156个。厦门大学光学考察组进行了56 个站位的后向散射仪HS6光学仪器定点剖面观测以及采水样，15 个站位的水下光谱观测数据。厦门大学化学考察组进行了水体、沉积物中环境持久性有毒物质（Persistent Toxic Substances，PTS）的含量分布、上层水体中PTS 颗粒输出的同位素示踪动力学过程、沉积物中PTS的沉积速率估算及其降历史反演等实验。中国海洋大学考察组进行大气激光雷达累计观测时间超过350小时，原始数据超过15GB，天空辐射计累观测超过50天次。天津科技大学考察组获取了浮游植物丰度采水样106个，拖网 13 次，光合色素滤膜551个，流式细胞仪采水样 736 个，初级生产力滤膜80个，钙化速率滤膜88个、POC样本20个、PIC 样本20个，固氮蓝藻滤膜26个，稀释法滤膜236个，删减法滤膜240个，肠道色素滤膜3个，生源硅滤膜 36 个。