POC Production and Export in the Indian Ocean Sector of the Southern Ocean: A US-China Collaborative Research Program

* 9726186 Pilskaln 这项拟议的工作是一项研究的生物生产和生物源物质的出口通量，以响应通风的中间和深层水团内的极锋区。 这是缅因州大学和中国南极研究考察队（南极考察队）之间的合作项目。 该船的工作是为中国南极再补给船在印度洋海域的普拉茨湾。 在南部的春天，该地区经历浮游植物水华，被认为是营养物质运输的结果，通过通风的中间和深水质量。 每年，据信这种水华是颗粒有机碳和生物硅流入海底的主要来源。 然而，目前还没有关于通过水柱下沉的颗粒有机物数量的数据，因此该地区生产与出口之间的数量关系基本上不确定。 这项工作的初始阶段包括在南纬64度、东经73度附近建立一个时间序列沉积物收集器系泊点，以利用海洋研究所在过去十年中在这一地区获得的历史数据集。 将对每两周至每月一次的捕集器样品进行有机成分分析，并结合初级生产力观测，提供可从中得出出口值的基本数据。 这项工作将与中华人民共和国国家海洋局和中国南极考察队合作进行。 除了在南极再补给船上提供时间外，国家海洋局还将赞助船上初级生产力实验和支持性水文测量。 合作的美国科学家将提供指导，使这些观测符合为联合全球海洋通量研究制定的标准，并为系泊沉积物收集器提供硬件。 美国和中国的研究人员将共享所有样本和数据集，并将共同进行数据分析。 ***

*** 9726186 Pilskaln This proposed work is a study of the biological production and export flux of biogenic matter in response to ventilation of intermediate and deep water masses within the Polar Front zone. It is a collaborative work between the University of Maine and the Chinese Antarctic Research Expedition (CHINARE). The shipboard work is proposed for the Chinese antarctic resupply vessel off Prydz Bay in the Indian Ocean sector. In the austral Spring, this region experiences phytoplankton blooms that are thought to be the result of nutrient transport by the ventilation of intermediate and deep water masses. On an annual basis, it is believed that such blooms are the primary source of particulate organic carbon and biogenic silica flux to the ocean bottom. At this time however no data exists on the amount of particulate organic matter that sinks through the water column, leaving the quantitative relationships between production and export largely undefined in this region. The initial phase of the work consists of setting out a time-series sediment trap mooring at approximately 64 deg S latitude and 73 deg E longitude to take advantage of the historical data set that CHINARE has obtained in this area over the past decade. The biweekly to monthly trap samples will be analyzed for their organic constituents, and in conjunction with primary productivity observations will provide the basic data from which export values can be derived. This work will be carried out in collaboration with the State Oceanic Administration of the People's Republic of China, and the Chinese Antarctic Research Expedition. In addition to providing time on the antarctic resupply vessel, the SOA will sponsor the shipboard primary productivity experiments and the supporting hydrographic measurements. The collaborating American scientists will provide guidance in making these observations to standards developed for the Joint Global Ocean Flux Study, and provide the hardware for the moored sediment trap. There will be a mutual sharing between the U.S. and Chinese investigators of all samples and data sets, and the data analysis will be carried out jointly. ***