本文選題：海洋環(huán)境信號 + OBS(Ocean��； 參考：《海洋科學(xué)》2016年02期

【摘要】：為研究海洋環(huán)境信號在OBS(Ocean Bottom Seismograph)原始數(shù)據(jù)中的規(guī)律及應(yīng)用,根據(jù)OBS原始數(shù)據(jù)的波形及頻譜特征,將研究區(qū)劃分為5個時間段,依次為舊涌浪階段、風(fēng)浪漸強階段、風(fēng)浪全盛階段、風(fēng)浪消退階段和新涌浪階段。結(jié)合海洋天氣預(yù)報,認(rèn)為上述現(xiàn)象是由偏南風(fēng)風(fēng)浪對海流的影響造成的。參考野外地震數(shù)據(jù)采集記錄班報,得到各階段的時長和距離,計算風(fēng)浪漸強、全盛和消退階段OBS附近海流的平均速度。結(jié)果表明:OBS原始資料中淺海海洋環(huán)境噪音增強的主要因素是風(fēng)浪,且風(fēng)浪引起的噪音信號的波形變化特征是漸進(jìn)式的;OBS可用于接收某種特殊階段(如臺風(fēng)、海嘯等)的噪音信號,并根據(jù)噪音信號的波形特征、頻譜變化規(guī)律和持續(xù)時間估算該階段的海流速度變化。
[Abstract]:In order to study the regularity and application of marine environmental signals in the original data of Ocean bottom Seismograph, according to the waveform and spectrum characteristics of OBS raw data, the study area is divided into five periods: the old surge stage, the wind wave gradually strengthening stage, and the wind wave peak stage. Wind wave receding stage and new surge stage. Combined with ocean weather forecast, it is considered that the above phenomenon is caused by the influence of wind and waves on the current. With reference to the field seismic data acquisition and recording shift, the time and distance of each stage are obtained, and the average velocity of the current near OBS in the stage of wind and wave is calculated. The results show that the main factor of the noise enhancement in the shallow ocean environment in the original data of: OBS is the wind and waves, and the characteristic of the waveform variation of the noise signals caused by the wind waves is that the progressive OBS can be used to receive some special stages (such as typhoon, for example, typhoon). The variation of current velocity in this stage is estimated according to the waveform characteristics, spectrum variation and duration of the noise signal.
【作者單位】： 中國海洋大學(xué)海底科學(xué)與探測技術(shù)教育部重點實驗室;中海石油(中國)有限公司湛江分公司;青島海洋地質(zhì)研究所;
【基金】：國家自然科學(xué)基金重點項目(41230318;41240005;90814011) 國家863項目(2009AA093401)~~
【分類號】：P715
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本文編號：2019506