Optical variability in the ocean

海洋中的光学变化

• 批准号: 2952-2007
• 负责人: Lewis, Marlon
• 金额: $ 4.81万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=449455
• 关键词: Optical; variability; ocean

Prediction of the optical properties of the upper ocean is of central importance in oceanography. These properties regulate the penetration of visible radiation with ramifications for both physical and biological oceanographic processes. Solar radiation absorbed in the upper layers heats and stabilizes the ocean; as a result, variability in the rate of attenuation of visible radiation plays a strong role in the upper ocean thermal structure and dynamics. Absorbed radiation is responsible for driving the photosynthetic process on which life in the sea depends. For applied interests, the attenuation of visible wavelengths dictates the effective transmission from point and diffuse sources either at the sea surface, or at depth. The goals of my research program are to examine both the sources of variability in ocean optical properties, and to evaluate the effect of this variability on both oceanic biogeochemical cycles and the physical climate interactions:

预测上层海洋的光学性质在海洋学中具有重要意义。这些特性调节可见光辐射的穿透，对物理和生物海洋学过程都有影响。上层吸收的太阳辐射加热和稳定海洋；因此，可见光辐射衰减率的变异性在上层海洋的热结构和动力学中起着重要作用。吸收的辐射负责推动海洋生物赖以生存的光合作用过程。对于应用而言，可见光波长的衰减决定了点源和漫射源在海面或深度的有效传输。我的研究计划的目标是研究海洋光学性质变化的两个来源，并评估这种变化对海洋生物地球化学循环和物理气候相互作用的影响：