SGER: ENSO 97 Halocline Study: Hawaii to Christman Island Transit

SGER项目下的费尔班克斯基金用于研究1997年ENSO事件期间热带太平洋上层海洋的化学成分。这笔资金将用于补充在R/V莫阿纳波浪上进行的海上珊瑚钻探考察。正在进行的水文数据以及来自上层海洋剖面的更完整的化学和同位素数据将在从夏威夷和圣诞岛开始的横跨赤道样带上的尼诺3区域收集，这些站点的间距为1度或更少纬度。所提议的营养物、氧和荧光测量将构成基线，以便与以前和今后关于厄尔尼诺和非厄尔尼诺事件期间上层海洋地球化学变化的研究进行比较。氧同位素的收集将提高我们对对流系统、其相关淡水通道及其对上层海洋温度和盐度分层的影响的理解。这些过程被认为是一些预测ENSO模式失败的原因之一。

Fairbanks Funds under the SGER program are provided to study the chemistry of the upper ocean in the tropical Pacific during the 1997 ENSO event. The funds will be used to complement a funded offshore coral drilling expedition on the R/V Moana Wave. Underway hydrographic data as well as more complete chemical and isotopic data from the upper ocean at profiles will be collected in the Nino 3 region on a cross-equatorial transect from Hawaii and Christmas island, at stations spacings of one degree latitude or less. The proposed nutrient, oxygen and fluorescence measurements that are proposed will form a base-line for comparison to prior and future studies of the changes in upper ocean geochemistry during El Nino and non-El Nino events. The oxygen isotope collection will improve our understanding of the convective system , its associated fresh water pathways and its impacts on the temperature and salinity stratification of the upper ocean. These processes are thought to be one of the sources of model failures in the some of the predictive ENSO models.