海洋開発論文集
Online ISSN : 1884-8265
Print ISSN : 0912-7348
ISSN-L : 0912-7348
潮位差の大きな実海域における空中発射型超音波潮位計の精度向上に関する研究
笹 健児永井 紀彦桑垣 和雄服部 慎一
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ジャーナル フリー

2006 年 22 巻 p. 97-102

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The real-time observation system of water levels is required to establish along coastal areas. The on-air acoustic tide gauge is newly developed here. It does not require the installation of the well in the water, so the construction cost is expected to be lower than conventional types. However, the accuracy is not verified in detail at the sea area which has large amplitudes of tides. In this study, tide data is continuously observed at the observation point in the Seto Inland Sea after the installation. At first, the property of temperatures in the steel pipe of the tide guage is analyzed. The unevenness of temperatures is found, so we construct the algorithm of the correction of the acoustic velocity by using calibration bars. Finally, the improvement of the accuracy is confirmed by observed data.

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