SGER: Primary and Secondary Production Measurements Along the Western Antarctic Coastline on the Oden Ship of Opportunity Cruise

众所周知，南极西部海岸线的研究不足，但被认为在南大洋的全球碳循环中扮演着相对较大的角色。奥登过境邮轮是在从西南极半岛到罗斯岛的南大洋长期采样不足的地区收集数据的理想机会。收集到的信息将补充在两个主要海洋方案--南大洋GLOBEC(全球海洋生态系统动力学)和南大洋JGOFS(全球海洋通量联合研究)--期间在毗邻区域获得的数据。我们建议对初级和次级生产量进行正在进行的测量，以便为未来的巡航建立基线，并为同时进行的海洋哺乳动物、海鸟和冰层观测提供支持。我们将对正在航行的海水进行数字采样，包括温度、盐度、总叶绿素、pH、溶解氧、CDOM荧光、硝酸盐、磷酸盐、铁、动物和浮游植物。此外，总碳、微浮游生物和色素结构的离散样本将通过高效液相色谱法进行采集。MODIS遥感数据将在巡航期间积累，以便与现场颜料数据进行交叉校准，并与正在进行的气象数据进行交叉参考。总体目标是了解海冰边缘动态如何影响初级和次级生产，特别是关于幼体磷虾的动态。一名博士生和一名本科生将参与该项目。此外，该项目将本着国际极地年的精神，促进与瑞典和智利科学家的国际合作，这些科学家也将收集邮轮上的海洋数据。

The western Antarctic coastline is notoriously understudied but is thought to play a relatively large role in the Southern Ocean for global carbon cycling. The Oden transit cruise is an ideal opportunity to collect data in a chronically undersampled region of the Southern Ocean, from the West Antarctic Peninsula to Ross Island. The information collected will augment data obtained in adjoining regions during the conduct of two major ocean programs, Southern Ocean GLOBEC (Global Ocean Ecosystem Dynamics) and Southern Ocean JGOFS (Joint Global Ocean Flux Study). We propose to conduct underway measurements of primary and secondary production to establish a baseline for future cruises and as support for the marine mammal, sea bird and ice observations being conducted concurrently. We will digitally sample the underway seawater stream for temperature, salinity, total chlorophyll, pH, dissolved oxygen, CDOM fluorescence, nitrate, phosphate, iron, and zoo and phytoplankton. In addition, discrete samples will be taken for total carbon, microplankton, and pigment structure by HPLC. Modis remote sensing data will be accumulated during the time period of the cruise to allow cross calibration with in situ pigment data and cross referenced with underway meteorological data. The overall goal is to understand how the sea ice edge dynamics influence both primary and secondary production, particularly with respect to larval krill dynamics. One Ph.D. student and one undergraduate student will be involved in the project. In addition, the project will foster international collaboration, in the spirit of International Polar Year, with Swedish and Chilean scientists that also will be collect oceanographic data on the cruise.