SGER: Improving the Dynamic Size Range of Measurement and Quantification of Marine Particulates

SGER：提高海洋颗粒物测量和定量的动态尺寸范围

• 批准号: 0513409
• 负责人: David Checkley
• 金额: --
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 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: 2005-03-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0513409&HistoricalAwards=false
• 关键词: SGER; Improving; Dynamic; Size; Range

Particles in the ocean are most often classified by size (e.g. optically, electronically, or acoustically) or both size and type (e.g. by experts or image analysis). In general, the first is rapid, broad-scale, in situ, and routine while the latter is slower, smaller scale, lab-based, and experimental. The PIs will use in situ imaging, and subsequent image analysis, to assess in situ measurements from the Laser Optical Plankton Counter (LOPC). The PIs will be conducting this work in conjunction with their on-going NSF MRI project. The measurements will also address specific operational issues within the NSF MRI project. SGER funds are appropriate because (a) the related, on-going project will end in two years and this work is best conducted in conjunction it, and (b) the work is novel and with risk. The proposed project consists of multiple, simultaneous deployments of the LOPC and an in situ camera to acquire optical and image data in conditions ranging from blue, oceanic water, to plankton-rich water, to water with abundant aggregates. The result will be an improved ability to infer particle type as well as size from routine deployment of the LOPC, be it from a ship, buoy, or float. Such information is needed for a better understanding of particles and plankton in pelagic processes, including the carbon cycle. Broader Impacts: The PIs will identify one or more educators to accompany them on their Spring 2005 cruise. The educator(s) will interact with the PIs on the cruise and help with the instrument deployments and data acquisition. The educator(s) will be able to use this shipboard experience to bring elements of the newly developed technology and research into their teaching and program development.

海洋中的颗粒通常按大小(如光学、电子或声学)或同时按大小和类型分类(如专家或图像分析)。一般来说，前者是快速、大范围、就地和常规的，而后者是较慢的、较小规模的、以实验室为基础的和实验性的。PIS将使用现场成像和随后的图像分析，以评估激光浮游生物计数器(LOPC)的现场测量结果。PIS将与他们正在进行的NSF MRI项目一起进行这项工作。这些测量还将解决NSF MRI项目中的具体操作问题。SGER资金是适当的，因为：(A)相关的、正在进行的项目将在两年后结束，这项工作最好与它一起进行，以及(B)这项工作具有新颖性和风险。拟议的项目包括多次同时部署LOPC和一台就地相机，以获取从蓝色海水到富含浮游生物的水，再到具有丰富集合体的水的各种条件下的光学和图像数据。其结果将是提高从LOPC的常规部署中推断颗粒类型和大小的能力，无论是从船舶、浮标还是浮标。这些信息对于更好地了解包括碳循环在内的远洋过程中的颗粒和浮游生物是必要的。更广泛的影响：私人投资机构将确定一名或多名教育者陪同他们参加2005年春季巡游。教育者(S)将在巡航中与PI互动，并帮助仪器部署和数据获取。教育工作者(S)将能够利用这一船上经验将新开发的技术和研究元素带入他们的教学和项目开发中。