Construction of the microstructure measurement system using common device used in ocean observations

2014 Fiscal Year Final Research Report

• Project/Area Number: 23710002
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Environmental dynamic analysis
• Research Institution: The University of Tokyo
• Principal Investigator: NAGASAWA Maki 東京大学, 大気海洋研究所, 技術専門職員 (60447448)
• Research Collaborator: YASUDA Ichiro 東京大学, 大気海洋研究所, 教授 (80270792) ; GOTO Yasutaka 東京大学, 大気海洋研究所
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: 乱流計測

Outline of Final Research Achievements

Since microstructure measurements of velocity shear are very sensitive and fragile to noise from instruments,measurements have been performed with free-fall instruments whose vibrations to generate noise are minimized. Because of the difficulty in microstructure measurements, turbulence observations have been quite limited. In order to efficiently obtain much more turbulence data, we propose a new method in which a microstructure profiler is attached to a CTD-frame, which is a common device used in ocean observations.　Comparing the turbulence intensity measured using this method with which from free-fall instruments, we evaluate the performance of microstructure measurements using instruments attached to a CTD-frame.

Free Research Field

海洋計測