Construction of a New Fine- and Microstructure Profiler

0118401 Polzin/WHOI该项目支持设计、建造和测试一种新仪器，以测量从微尺度到海洋深度的垂直尺度上的速度。 这一仪器将具有独特的能力，能够获得深海底部几米以内的湍流量剖面图，从而能够对海底边界层上部和海洋内部进行取样。 该设计是基于一个现有的分析器，接近其工作寿命结束。 不过，改进设计后，可以更接近海底，进行更精确的测量，并储存更多的数据。 预计该仪器将用于今后对有关海洋的各种科学问题的研究，其中密度场的小规模混合和小规模结构是重要的。 这些问题包括关于维持和演变的大规模分层和海洋环流以及有关的问题如何示踪剂混合通过海洋。

0118401Polzin/WHOIThe project supports the design, construction and testing of a new instrument to measure velocity on vertical scales that range from the microscale to the depth of the ocean. This instrument will have the unique capacity to obtain profiles of turbulent quantities to within a few meters of the bottom of the deep ocean and thus be able to sample both the upper part of the bottom boundary layer and the ocean interior. The design is based on an existing profiler that is nearing the end of its working life. However, design enhancements will permit closer approaches to the sea-floor, more accurate measurements and greater data storage. It is anticipated that the instrument will be used in future research into a variety of scientific questions about the ocean in which small-scale mixing and small-scale structure in the density field are important. These include questions about the maintenance and evolution of the large-scale stratification and circulation of the ocean as well as questions concerned with how tracers are mixed through the ocean.