本文選題：海底邊界層 + 沉積物再懸浮��； 參考：《海洋地質(zhì)與第四紀地質(zhì)》2016年01期

【摘要】：海床沉積物受海洋水體的影響形成海底邊界層(Bottom Boundary Layers,BBLs)。上部海水與下部沉積物在BBLs發(fā)生著復(fù)雜的相互作用,直接影響海底沉積物侵蝕、再懸浮與堆積過程。與此同時,沉積物顆粒可能攜帶的污染物解析釋放,BBLs研究的科學意義與工程應(yīng)用價值日益突顯。海底邊界層的范圍已經(jīng)遠遠超出了傳統(tǒng)的流體力學中邊界層的范圍,而是海床界面上下一定范圍內(nèi),水流與海床相互作用的區(qū)域。在波浪作用下BBLs沉積物以海床剪切破壞、海床液化破壞及震蕩體破壞三種破壞模式發(fā)生侵蝕再懸浮。此外,海流、風暴潮、人類活動以及海底生物的擾動作用等對沉積物再懸浮起著不可忽視的作用。BBLs沉積物再懸浮原位觀測是研究BBLs沉積物再懸浮最基礎(chǔ)也是最重要的手段之一,常用的原位測試手段有水體采樣、OBS、激光粒度儀、ADCP/ADV以及電法測量。海底懸沙和底沙的交換程度直接影響底層懸沙濃度的變化,沉積物再懸浮的定量分析成為海洋沉積過程研究的主要內(nèi)容之一。系統(tǒng)地總結(jié)前人的研究成果,重點圍繞海底邊界層理論、海底沉積物再懸浮的影響因素、沉積物再懸浮的原位觀測以及海底沉積物再懸浮的定量分析等幾個問題進行綜合評述。
[Abstract]:The bottom boundary layer (bottom boundary layer) is formed by the influence of ocean bodies on the seabed sediments. There is a complex interaction between the upper seawater and the lower sediments in BBLs, which directly affects the process of sediment erosion, resuspension and accumulation. At the same time, the scientific significance and engineering application value of the analytical release of BBLs from sediment particles are increasingly prominent. The range of seafloor boundary layer is far beyond the traditional boundary layer in hydrodynamics, but it is the area where the interaction between the current and the seabed is within a certain range of the interface between the seabed and the seabed. Under the action of wave, the three failure modes of BBLs sediment, I. E. shear failure of seabed, liquefaction of seabed and destruction of oscillating body, occur erosion and resuspension. In addition, currents, storm surges, human activities and the disturbance of benthic organisms play an important role in sediment resuspension. In situ observation of BBLs sediment resuspension is one of the most basic and important methods for studying BBLs sediment resuspension. OBSs, ADCP / ADV and electrical measurement are commonly used in in-situ measurement. The exchange degree between suspended sediment and bottom sediment directly affects the change of suspended sediment concentration, and the quantitative analysis of sediment resuspension becomes one of the main contents of marine sediment research. This paper systematically summarizes the previous research results, focusing on the theory of seafloor boundary layer, the influencing factors of sediment resuspension, the in-situ observation of sediment resuspension and the quantitative analysis of seafloor resuspension.
【作者單位】： 中國海洋大學環(huán)境科學與工程學院;教育部海洋環(huán)境與生態(tài)重點實驗室;
【基金】：國家自然科學基金重點項目(41427803、41372287、41402253) 國家海洋公益行業(yè)專業(yè)項目(201405032)
【分類號】：P736.21

【相似文獻】

相關(guān)期刊論文 前2條

1 王丕波,宋金明,郭占勇,李鵬程;海洋表層沉積物中的無機氮在擾動情況下的行為特征[J];中國科學院研究生院學報;2005年06期

2 ;[J];;年期

相關(guān)碩士學位論文 前1條

1 王丕波;海洋表層沉積物再懸浮對N、P循環(huán)以及對顆粒物垂直輸運的影響[D];中國科學院研究生院（海洋研究所）;2005年

，

本文編號：2048348