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On recording sea surface elevation with accelerometer buoys: lessons from ITOP (2010)

机译：使用加速度计浮标记录海平面高程：来自ITOP的经验教训（2010）

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Measurements of significant wave height are made routinely throughout the world's oceans, but a record of the sea surface elevation (η) is rarely kept. This is mostly due to memory limitations on data, but also, it is thought that buoy measurements of sea surface elevation are not as accurate as wave gauges mounted on stationary platforms. Accurate records of η which contain rogue waves (defined here as an individual wave at least twice the significant wave height) are of great interest to scientists and engineers. Using field data, procedures for tilt correcting and double integrating accelerometer data to produce a consistent record of η are given in this study. The data in this study are from experimental buoys deployed in the recent Impact of Typhoons on the Ocean in the Pacific (ITOP) field experiment which occurred in 2010. The statistics from the ITOP buoys is under that predicted by Rayleigh theory, but matches the distributions of Boccotti and others (Tayfun and Fedele) (Ocean Eng 34:1631-1649, 2007). Rogue waves were recorded throughout the experiment under various sea state conditions. Recommendations, as a result of lessons learned during ITOP, are made for the routine recording of η which may not add significantly to the existing data burden. The hope is that we might one day collect a worldwide database of rogue waves from the existing buoy network, which would progress our understanding of the rogue wave phenomenon and make work at sea safer.
机译：在世界各地的海洋中，通常都会进行重要波高的测量，但很少保留海面高度（η）的记录。这主要是由于数据的存储限制，而且，人们认为海平面标高的浮标测量不如安装在固定平台上的波表精确。包含恶意波（此处定义为单个波至少是有效波高的两倍）的η的准确记录对于科学家和工程师而言非常重要。在这项研究中，给出了使用现场数据进行倾斜校正和对加速度计数据进行两次积分以产生一致记录的程序。本研究的数据来自于2010年进行的最近台风对太平洋海洋影响（ITOP）现场实验中部署的实验浮标。ITOP浮标的统计数据低于瑞利理论的预测，但与分布相匹配Boccotti等人（Tayfun和Fedele）的论文（海洋工程34：1631-1649，2007）。在整个海况条件下，整个实验记录了无赖波。根据ITOP期间的经验教训，建议对η进行常规记录，但这可能不会显着增加现有数据负担。希望我们有一天可以从现有的浮标网络中收集全球范围内的流浪数据库，这将增进我们对流浪现象的理解，并使海上工作更安全。

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