Development of a GNSS Buoy for Monitoring Water Surface Elevations in Estuaries and Coastal Areas.
Development of a GNSS Buoy for Monitoring Water Surface Elevations in Estuaries and Coastal Areas.
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DOI：
10.3390/s17010172
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发表时间：
2017-01-18
期刊：
影响因子：
--
通讯作者：
Kao CC
中科院分区：
文献类型：
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作者：
Lin YP;Huang CJ;Chen SH;Doong DJ;Kao CC
在这项工作中，全球导航卫星系统（GNSS）浮标，利用虚拟基站（VBS）与实时动态（RTK）定位技术相结合的开发，以监测河口和沿海地区的水面高程。GNSS浮标包括浮标船体、RTK GNSS接收器、数据传输设备、数据记录器和用于将数据传输到期望陆地位置的通用无线电服务（GPRS）调制解调器。进行了实验室和现场测试，以测试浮标的能力，并验证监测的水面高程的准确性。在现场测试中，GNSS浮标被部署在苏澳（台湾东北部）的沃茨。从全球导航卫星系统浮标获得的潮汐数据与从邻近潮汐站获得的数据一致。从全球导航卫星系统浮标获得的有效波高、过零周期和峰值波方向与从加速度计倾斜罗盘传感器获得的波高、过零周期和峰值波方向基本一致。现场试验表明，研制的GNSS浮标可用于获取河口和沿海地区精确的实时潮汐和波浪数据。
In this work, a Global Navigation Satellite System (GNSS) buoy that utilizes a Virtual Base Station (VBS) combined with the Real-Time Kinematic (RTK) positioning technology was developed to monitor water surface elevations in estuaries and coastal areas. The GNSS buoy includes a buoy hull, a RTK GNSS receiver, data-transmission devices, a data logger, and General Purpose Radio Service (GPRS) modems for transmitting data to the desired land locations. Laboratory and field tests were conducted to test the capability of the buoy and verify the accuracy of the monitored water surface elevations. For the field tests, the GNSS buoy was deployed in the waters of Suao (northeastern part of Taiwan). Tide data obtained from the GNSS buoy were consistent with those obtained from the neighboring tide station. Significant wave heights, zero-crossing periods, and peak wave directions obtained from the GNSS buoy were generally consistent with those obtained from an accelerometer-tilt-compass (ATC) sensor. The field tests demonstrate that the developed GNSS buoy can be used to obtain accurate real-time tide and wave data in estuaries and coastal areas.