"SST: An Autonomous Underwater Blue Laser System for Fine-Scale Distributions of Chlorophyll Fluorescence Lifetimes and Yields"

“SST：用于叶绿素荧光寿命和产量精细分布的自主水下蓝色激光系统”

• 批准号: 0428929
• 负责人: Mark Moline
• 金额: --
• 依托单位: California Polytechnic State University Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0428929&HistoricalAwards=false
• 关键词: SST; Autonomous; Underwater; Blue; Laser

P.I. Moline, Mark (Cal Poly) Proposal #: 0428929Project SummaryThe PIs propose to develop an AUV-base blue diode laser system that instantaneously assesses 10-meter vertical distributions (at millimeter resolution) of chlorophyll fluorescence and the kinetics of fluorescence to derive physiological rate measurements at a vertical resolution of millimeters using a streak camera/CCD array. This novel tool will increase the sampling resolutions in regions of high spatial/temporal variability, such as coastal environments, benthic habitats and ice-covered regions. The application of a blue diode laser system to examine vertical distributions phytoplankton distribution and photophysiology will expand our knowledge of complex ocean environments. Characteristics of blue lasers in seawater, the pulse timing, pulse width, peak power, stability, imaging distance, laser frequency spectrum are all areas that may lead to other application is oceanography Finally, the continued challenge to reduce the size and power requirements of oceanographic sensors is illustrated in this proposed work. An improved understanding of phytoplankton dynamics, habitat change and primary productivity in response to environmental forcing in complex ecosystems will translate into improved regional carbon budget estimates. Progress will also be made in understanding the function and efficiency of food webs. Finally, this work continues the effort to apply autonomous systems in the marine environment for increased data density and development of sensor networks that can adequately address the scales of ocean processes.

P.I.Moline，Mark(Cal Poly)提案#：0428929项目摘要PI建议开发一种基于AUV的蓝色半导体激光系统，该系统可即时评估10米垂直分布(毫米分辨率)的叶绿素荧光和荧光动力学，从而使用条纹相机/CCD阵列在垂直分辨率为毫米的情况下得出生理速率测量结果。这一新工具将提高高时空变异性区域的采样分辨率，如沿海环境、海底生境和冰盖区域。应用蓝色半导体激光系统来研究垂直分布、浮游植物分布和光生理学，将扩大我们对复杂海洋环境的了解。蓝光激光在海水中的特性、脉冲定时、脉冲宽度、峰值功率、稳定性、成像距离、激光频谱等都可能导致海洋领域的其他应用。最后，在这项拟议的工作中，说明了缩小海洋传感器的尺寸和功率要求的持续挑战。改善对浮游植物动态、栖息地变化和初级生产力的理解，以应对复杂生态系统中的环境压力，将转化为改善区域碳预算估计。在理解食物网的功能和效率方面也将取得进展。最后，这项工作继续努力在海洋环境中应用自主系统，以提高数据密度，并开发能够充分处理海洋过程规模的传感器网络。