Development of an open ocean acoustic Doppler Sensor with the capicity to measure turbulent parameters such as turbulent kinetic energy , momentum flux etc
Abstract
The objective of this project is to develop a next-generation self-contained acoustic Doppler Velocimeter (ADV). This technology allows rapid measurement of 3D water velocity and was first developed at the initiative of the US Army Corps of Engineers in the early 1990s to extensively used to study hydraulic processes. At the Naval Research Laboratory, this same instrument was used to study wake effects and turbulence structures behind objects suspended in the water column. In the early 2000s, a self-contained version of the ADV was developed for coastal applications. Studies of tidal inlets and river mouths have been of particular interest to the US Navy. Today it is possible to make significant improvements to the existing instrument introduced in the early 2000s. The functional improvements rely on innovation in transducer technology and improved instrument hardware and firmware which involves newly developed and more advanced processing techniques. These improvements in SNR and in measurement precision make it possible to use the ADV for open ocean measurements. The proposed workconsists of two phases, where the first covers all the necessary hardware and firmware development and the second consists of a series of tests that will show the results for open ocean turbulence measurement and for estimating transport of oxygen flux in benthic environments
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 31, 2020
- Source ID
- N000142012592
Entities
People
- Atle Lohrmann
Organizations
- Office of Naval Research
- United States Navy