本文選題：光學(xué)性質(zhì) + 影響機(jī)制��； 參考：《中國海洋大學(xué)》2015年博士論文

【摘要】：海洋水體光學(xué)性質(zhì)的變化及其影響機(jī)制的研究對于建立高精度的水色遙感反演方法、利用光學(xué)手段監(jiān)測懸浮顆粒物的動(dòng)態(tài)變化、預(yù)測水下能見度的變化以及利用光學(xué)手段研究短時(shí)間尺度的海洋和天氣過程對水體的影響具有重要的意義。本研究利用現(xiàn)場廣泛測量的光學(xué)性質(zhì)數(shù)據(jù),深入認(rèn)識黃渤海水體光學(xué)性質(zhì)變化的時(shí)間(季節(jié))和空間(水平及垂直)分布特征;并結(jié)合同步測量的水文及生物地球化學(xué)參數(shù)等數(shù)據(jù)所揭示的海洋過程分析了黃渤海水體光學(xué)性質(zhì)季節(jié)和空間變化的主要影響機(jī)制：然后以影響機(jī)制為基礎(chǔ),定量化光學(xué)性質(zhì)變化與水體光學(xué)活性組分的關(guān)系。在上述研究的基礎(chǔ)上,利用在黃渤海廣泛測量的光學(xué)數(shù)據(jù)研究了光學(xué)性質(zhì)的光譜依賴性關(guān)系,并構(gòu)建了黃渤海水體光學(xué)性質(zhì)參數(shù)化模型。最后利用沙塵暴期間的定點(diǎn)周日測量分析了沙塵暴對水體光學(xué)性質(zhì)的影響。主要研究結(jié)果如下：1.黃渤海水體光學(xué)性質(zhì)變化主要由潮波所致的底部沉積物再懸浮、水體垂向混合及浮游植物生長的生物過程所影響。具體影響機(jī)制如下：春季,水體的垂向混合動(dòng)力開始降低,層化現(xiàn)象開始出現(xiàn),層化結(jié)構(gòu)的出現(xiàn)進(jìn)一步降低了水體的垂向混合動(dòng)力,使得底部受潮波所致再懸浮的沉積物的上移受限,由于春季具備適宜浮游植物生長所需的條件,浮游植物得以開始大量生長,對于深水區(qū),其上層水體的光學(xué)性質(zhì)主要由浮游植物生長的生物過程所影響,其底層水體主要由潮波所致的底部沉積物的再懸浮過程所影響,對于淺水區(qū),由于水深較淺,同等外部條件下,其垂向混合動(dòng)力較之深水區(qū)較強(qiáng),層化效應(yīng)相對也較弱,底層再懸浮的沉積物較之深水區(qū)更易上移至上層水體,因此對于淺水區(qū),上層水體的光學(xué)性質(zhì)除受浮游植物生長的生物過程影響外,還受底部沉積物的再懸浮過程所影響。夏季,水體的層化效應(yīng)得到進(jìn)一步加強(qiáng),黃渤海大部分水域的上層水體的光學(xué)性質(zhì)主要由浮游植物生長的生物過程所影響。秋冬季節(jié),水體層化效應(yīng)減弱,垂向混合作用較強(qiáng),深度小于50m的水體垂向混合慢慢均勻,對于深度大于50m的水域,由于水深較深,強(qiáng)混合作用仍不能使得水體上下混合均勻,但強(qiáng)混合作用使得上混合層深度較深,上混合層底部距海底較近,底部再懸浮的沉積物易通過躍層進(jìn)入上混合層水體,但對于特別深的水體如黃海海槽附近水體,雖然上混合層底部距海底較近,但由于水深更深,躍層相對較強(qiáng),底部再懸浮的沉積物依然很難突破躍層進(jìn)入上混合層,因此對于秋冬季節(jié),除黃海海槽附近水域上層水體的光學(xué)性質(zhì)依然受浮游植物生物過程影響外,大部分水體的光學(xué)性質(zhì)逐漸由底部沉積物的再懸浮過程所影響。2.直接引起黃渤海水體光學(xué)性質(zhì)變化的主要光學(xué)活性組分是水體中的懸浮顆粒物。光學(xué)性質(zhì)與懸浮顆粒物的關(guān)系依賴于懸浮顆粒物的類型,對于后向散射比大于0.015的水體,水體中的顆粒物主要以無機(jī)顆粒物為主,光學(xué)性質(zhì)與懸浮顆粒物濃度具有較好的相關(guān)關(guān)系,平均相關(guān)系數(shù)約為0.97；對于后向散射比小于0.009的水體,水體中的顆粒物主要以浮游植物顆粒為主,其光學(xué)性質(zhì)與葉綠素濃度具有較好的相關(guān)關(guān)系,平均相關(guān)系數(shù)約為0.87。3.對于春季南黃海中部上混合層水體,當(dāng)沙塵暴發(fā)生時(shí),沉降于水體的沙塵顆粒對散射的貢獻(xiàn)取決于沙塵暴的強(qiáng)度,氣溶膠光學(xué)厚度約為2.5的沙塵暴所引起的沙塵顆粒沉降導(dǎo)致的水體顆粒物散射系數(shù)在532nm處的增加量約為0.14m-1；此外,沉降于上混合層水體內(nèi)的沙塵顆粒的沉降速度較快,伴隨著沙塵暴的結(jié)束,約結(jié)束后的3個(gè)小時(shí)內(nèi),上混合層水體內(nèi)的沙塵顆粒便沉降到底層：另外研究結(jié)果間接揭示出大氣沉降對光學(xué)性質(zhì)變化的影響在無沙塵暴發(fā)生時(shí)可近似認(rèn)為0。
[Abstract]:The study of the changes in the optical properties of marine water and its influence mechanism is important for the establishment of high precision water color remote sensing inversion method, the use of optical means to monitor the dynamic changes of suspended particles, the prediction of the changes in underwater visibility and the influence of the ocean and weather processes on the short time scale by using optical means to study the water body. In this study, the time (season) and spatial (horizontal and vertical) distribution characteristics of the changes in the optical properties of the yellow and Bohai water bodies are thoroughly understood by using the optical properties of the widely measured field, and the seasonal and space of the optical properties of the yellow and Bohai water bodies are analyzed by the oceanic process revealed by the data of hydrologic and biogeochemical parameters measured synchronously. The main influence mechanism of inter change: then based on the influence mechanism, the relationship between the change of optical properties and the optical active components of water body is quantified. On the basis of the above study, the optical properties of the optical properties of the yellow and Bohai water body are studied by using the optical data widely measured in yellow and yellow Bohai, and the parameterized model of the optical properties of the Yellow River water body is constructed. Finally, the effects of dust storms on the optical properties of water bodies were analyzed using a fixed Sunday survey during the dust storm. The main results are as follows: 1. the changes in optical properties of 1. yellow water bodies are mainly influenced by the sediment resuspension caused by tidal waves, the vertical mixing of water bodies and the biological processes of phytoplankton growth. In the spring, the vertical hybrid power of the water body begins to decrease, and the stratification begins to appear. The emergence of the stratification will further reduce the vertical mixing of the water body, which makes the upshift of the sediment suspended from the bottom of the tidal wave limited. As a result of the conditions necessary for the growth of phytoplankton in the spring, the phytoplankton can start a large number of plants. For the deep water, the optical properties of the upper water body are mainly influenced by the biological process of the phytoplankton growth. The bottom water body is mainly influenced by the resuspension process of the bottom sediments caused by tidal waves. For shallow water, the vertical hybrid power is stronger than the deep water area and the stratification effect is stronger than that in the deep water area. In the shallow water, the optical properties of the upper water body are affected by the biological process of phytoplankton growth and the resuspension process of the bottom sediments. In the summer, the stratification effect of the water body is further strengthened, and the large part of the Yellow Bohai region. The optical properties of the upper water body in the sub waters are mainly influenced by the biological process of the phytoplankton growth. In the autumn and winter season, the effect of the water layer is weakened, the vertical mixing is stronger, the vertical mixing of the water body with depth less than 50m is slowly uniform. For the waters with depth greater than 50m, the strong mixing can not make the water mixing up and down because of the deep water depth. It is uniform, but strong mixing makes the upper mixing layer deep, the bottom of the upper mixing layer is closer to the bottom of the sea, and the bottom suspended sediment is easy to enter the upper mixed layer water through the levitate layer, but for the special deep water body, such as the water in the Huang Haihai trough, although the bottom of the upper layer is closer to the bottom of the sea, the depth of the water is deeper and the cline is relatively stronger. In the autumn and winter, the optical properties of the upper water body in the waters near the Yellow Sea and sea trough are still affected by the biological process of phytoplankton in the autumn and winter seasons. The optical properties of most water bodies are gradually influenced by the resuspension process of the bottom sediments by.2. directly caused by the Huang Bo sea water. The main optical active components of the changes in the optical properties of the body are suspended particles in the water body. The relationship between the optical properties and the suspended particles depends on the type of suspended particles. For the water body with a backscatter ratio greater than 0.015, the particles in the water body are mainly inorganic particles, and the optical properties and the concentration of suspended particles are better. The correlation coefficient is about 0.97, and for the water body with the backscatter ratio less than 0.009, the main particles in the water body are mainly phytoplankton particles, and the optical properties have a good correlation with the chlorophyll concentration. The average correlation coefficient is about 0.87.3. for the upper mixed layer water in the middle of the South Yellow Sea in spring, when the dust storm occurs. The contribution of sand dust particles settling in water to the scattering depends on the strength of dust storm. The increase of the scattering coefficient of particles in the 532nm is about 0.14m-1, and the sedimentation rate of sand particles in the water body of the upper mixing layer is more than that of the dust particles. Fast, with the end of the dust storm, the dust particles in the upper mixed layer of water will settle down to the bottom within 3 hours after the end of the end. The results indirectly reveal that the effect of atmospheric deposition on the change of optical properties can be approximately 0. in the absence of dust storms.
【學(xué)位授予單位】：中國海洋大學(xué)
【學(xué)位級別】：博士
【學(xué)位授予年份】：2015
【分類號】：P733

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 顧剛，程光煦，都有為;C_（60）固體的光學(xué)性質(zhì)[J];物理學(xué)進(jìn)展;1995年03期

2 周建莉,楊海珉,吳杰,顧琳,和麗軍,高思安;生物膽汁液晶的光學(xué)性質(zhì)[J];昆明醫(yī)學(xué)院學(xué)報(bào);2000年02期

3 楊海珉，，吳杰，李靜儀，周建莉，和麗軍，許賢芳;人體膽汁液晶光學(xué)性質(zhì)的研究[J];生物物理學(xué)報(bào);1995年01期

4 姚會(huì)軍;;離子徑跡模板中金納米線光學(xué)性質(zhì)研究(英文)[J];IMP & HIRFL Annual Report;2007年00期

5 王凱;丁志華;王玲;;基于光學(xué)相干層析術(shù)的組織光學(xué)性質(zhì)測量[J];光子學(xué)報(bào);2008年03期

6 姜維海;劉行冰;林澤彬;蔡葦;符春林;;溶膠-凝膠法制備的鈦酸鋇薄膜光學(xué)性質(zhì)的影響因素概述[J];表面技術(shù);2012年06期

7 王愛坡;;圓錐曲線光學(xué)性質(zhì)的幾何證明[J];數(shù)學(xué)學(xué)習(xí)與研究;2011年03期

8 呂良曉;;激光晶體的微觀缺陷與宏觀光學(xué)性質(zhì)[J];激光與紅外;1984年04期

9 張鎮(zhèn)西,馬玉蓉,方容川,揚(yáng)楓,饒慧蓉,王保泰;固定對組織光學(xué)性質(zhì)的影響[J];激光生物學(xué);1993年01期

10 黃欽煊,李步洪,王秀琳,謝樹森;生物組織光學(xué)性質(zhì)與表面反射率的相關(guān)性[J];福建師范大學(xué)學(xué)報(bào)(自然科學(xué)版);2000年04期

相關(guān)會(huì)議論文 前10條

1 胡曉琳;莊乃鋒;章永凡;陳德賢;陳建中;李俊{

本文編號：2114204