Swell-dominant surface waves observed by a moored buoy with a GPS wave sensor in Otsuchi Bay, a ria in Sanriku, Japan

Swell-dominant surface waves observed by a moored buoy with a GPS wave sensor in Otsuchi Bay, a ria in Sanriku, Japan
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日本三陆里亚海大槌湾的系泊浮标与 GPS 波传感器观测到的以涌浪为主的表面波

DOI:
10.1007/s10872-016-0362-4
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发表时间:
2017
影响因子:
2.3
通讯作者:
Tanaka K
Tanaka K
中科院分区:
地球科学4区
文献类型:
--
作者:
Komatsu K;Tanaka K

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2012年10月,开始使用带有超声波风速计和单模全球定位系统波浪传感器的系泊浮标,对日本东北部岩手大槌湾的风和表面波进行实时监测。风和波浪数据通过互联网每小时真实的发布,沿着附有时间序列图。我们分析了前3个月的监测数据,以评估风和波浪的变化和发生,并阐明大槌湾波浪变化的主要原因。监测数据显示,在海湾中的表面波主要是由从东北部近海区域传播的涌浪的影响,波高显着相关的组件的风速向大槌湾在东北部近海区域,面对海湾口。海上风场预计将提供有用的信息,预测沿海波浪在三陆湾,如大槌湾。然而,应该强调的是,离岸风场的水平分布,有一个显着的影响,在一个里亚湾的表面波在很大程度上取决于海湾的地形形状。
Real-time monitoring of wind and surface waves in Otsuchi Bay, Iwate, Tohoku, Japan, commenced in October 2012, using a mooring buoy with an ultrasonic anemometer and a single-mode GPS wave sensor. Wind and wave data are distributed hourly in real time via the Internet along with a chart of their time series. We analyzed data monitored in the first 3 months in order to assess the variability and occurrence of wind and waves and to elucidate the main reasons for wave variation in Otsuchi Bay. The monitoring data revealed that surface waves in the bay were predominantly affected by swells propagated from the northeastern offshore region and that the wave height was significantly correlated with the component of wind velocity toward Otsuchi Bay in the northeastern offshore region that faces the bay mouth. The offshore wind field was expected to provide information useful for predicting coastal waves in a ria bay in Sanriku such as Otsuchi Bay. However, it should be emphasized that the horizontal distribution of the offshore wind field which has a significant effect on the surface waves in a ria bay depends heavily on the topographic shape of the bay.
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