Investigation of Optical Properties and Photoadaptation During EqPAC JGOFS Cruises

这项研究将描述遥感海洋颜色与生物光学变量和初级生产力的垂直剖面之间的关系，以及它们的年际和季节变化，以解决美国JGOFS赤道太平洋计划的中心目标。据推测，浮游植物的光适应产生了色素的垂直剖面和光学剖面，在给定的地理省份和一年中的时间内，这是可预测的近表面光学特性的函数，可以通过遥感海洋颜色来估计。进一步推测，自然和受激荧光和光学性质的联合分布是光适应特征，可能与初级生产力有关。在JGOFS EqPac巡航期间，将获得光学和荧光（自然和受激）测量，并结合色素和生产力的核心测量，将用于开发这些关系的经验模型。这些结果将使过去（CZCS）和未来（SeaWiFS）海洋颜色数据的色素生物量和生产力分析成为可能，并有助于在整个JGOFS EqPac数据集的背景下评估区域生物地球化学过程。

This study will characterize relationships between remotely sensed ocean color and the vertical profiles of bio-optical variables and primary productivity - and their interannual and seasonal variabilities - to address central goals of the U.S. JGOFS Equatorial Pacific Plan. It is hypothesized that photoadaptation by phytoplankton creates vertical profiles of pigments and optical profiles which, in a given geographic province and time of year, are predictable functions of near- surface optical properties estimable from remotely sensed ocean color. It is further speculated that the joint profiles of natural and stimulated fluorescence and optical properties are photoadaptive characteristics which may correlate with primary productivity. Optical and fluorescence (natural and stimulated) measurements will be acquired during the JGOFS EqPac cruises, which in combination with core measurements of pigments and productivity, will be used to develop empirical models of these relationships. These results will enable pigment biomass and productivity analyses of past (CZCS) and future (SeaWiFS) ocean color data, as well as contributing to the assessment of regional biogeochemical processes in the context of the overall JGOFS EqPac data set.