A Preliminary Analysis of Errors in Wind Measurements from Ocean Data Buoys.
Technical rept. Oct 72-31 Jan 73,
GENERAL DYNAMICS SAN DIEGO CALIF ELECTRONICS DIV
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Errors in wind speed and direction measurement made aboard a data collection buoy are considered. Sources of error examined included sensor dynamics, signal conditioning, buoy motion, analog-to-digital conversion, and calibration. A discussion of each error source and the resulting error is made. Errors due to buoy motion were found to be small for synoptic conditions due to the pre-sample filtering of the periodic buoy motion. The most significant errors were found to be in analog velocity processing to convert speed and direction to north and east components, the pre-sample filtering, and the calibration of sensors. Digital techniques can be used in forming the north and east vector components to reduce velicity processor errors to a level of insifnificance. Author