Instrumentation for Upper Ocean Dynamics Turbulence and Gas Transfer Research
Abstract
LONG-TERM GOAL. We wish to improve our suite of instrumentation to measure upper ocean dynamics, turbulence, gas transfer and recording and computing equipment for data acquisition and real-time processing of data. SCIENTIFIC OBJECTIVES. To measure high frequency turbulence and wave velocities with velocimeter instruments such as acoustic doppler velocimeter (ADV) and velocity-density-vorticity (VDV). To measure accurately the wavenumber-directional spectrum, and its spatial and temporal variation with laser ranging gauges. To measure the pressure above the waves, a key to understanding the wave generation problem on the ocean with sensitive MKS pressure transducers and Elliott pressure probes. To use hot wire/film anemometry to resolve velocity components over the full range of scales -- from the large eddies to the Kolmogorov micro-scale. Modern constant temperature anemometer (CTA) systems are extensively used in gas transfer studies and investigations of turbulent kinetic energy properties in both phases (air and water) and in both environments (laboratory and field). To measure also temperature fluctuations with a constant current anemometer (CCA) module. To measure the necessary corrections for the motion of the buoy with 6-degree of freedom inertial packages.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1997
- Accession Number
- ADA634273
Entities
People
- Hans C. Graber
- Mark A. Donelan
Organizations
- University of Miami