AbstractWind measurements from ships are troubled by the disturbance of the wind field caused by the ship's hull and superstructure. To minimize this problem we used an anemometer on a boom 10 m off the port side of R.V. Rapuhia (former Meteor). Calculations show that the effect of the ship's rolling motions is negligible in most circumstances. Calibration runs, accelerating and decelerating the ship, were conducted to compare the performance of the anemometer on the boom with a traditional installation on the foremast. Significant differences were found. Even larger differences showed up between routine wind reports prepared by the ship's officers from reading the mast anemometer, and careful measurements with the boom anemometer. The routine reports appear to be 30% too high in moderate to strong winds, and unreliable in low winds. The most accurate wind time series can be constru information collected with both anemometers.
Improving the accuracy of wind speed observations from ships
Deep-Sea Research, Part A: Oceanographic Research Papers ; 36 , 8 ; 1267-1276
30.03.1989
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Low-speed controllability of ships in wind
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