Prediction and Measurement of the Stability of the IWEX Tripod Mooring.

The three-dimensional array of sensors for the Internal Wave Experiment (IWEX) was supported on a tripod mooring rising from the sea floor to a height of 5 km in mid-ocean of 5-1/2 km water depth. The mooring was so designed that the current-induced motions of the mooring would be small. Computer si...

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Bibliographic Details
Main Authors: Panicker,N. N., Schmidt,D. W.
Other Authors: WOODS HOLE OCEANOGRAPHIC INSTITUTION MASS
Format: Text
Language:English
Published: 1975
Subjects:
Physical and Dynamic Oceanography
*Mooring
*Oceanographic equipment
*Internal waves
Ocean waves
Depth
Measurement
Displacement
Motion
Underwater equipment
Calibration
Pressure
Computerized simulation
Bermuda
North Atlantic Ocean
Design
North Atlantic
Online Access:http://www.dtic.mil/docs/citations/ADA018700
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA018700
Description
Summary:The three-dimensional array of sensors for the Internal Wave Experiment (IWEX) was supported on a tripod mooring rising from the sea floor to a height of 5 km in mid-ocean of 5-1/2 km water depth. The mooring was so designed that the current-induced motions of the mooring would be small. Computer simulation was used for optimizing the mooring design to achieve this purpose. Nine precision pressure recorders were deployed at selected positions on the mooring and the results of analysis of the records are presented. The local tide time series is generated and subtracted from the pressure records to obtain the vertical excursions of the mooring. A five-term expression is used to convert pressure measured in decibars to depth in meters. The predicted displacements and the measured values are compared and found to agree. The mooring motion was found in general to be small enough to contribute insignificant noise to the velocity measurements.

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