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| 基于遥感反演的海阳海域悬浮泥沙时空分布特征研究 |
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王强1,2,3,4, 黄海军1,2,3,4, 张泽华1,2,4, 严立文1,2,4, 刘艳霞1,2,4, 毕海波1,2,4
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1.中国科学院海洋研究所, 山东 青岛 266071;2.中国科学院海洋地质与环境重点实验室, 山东 青岛 266071;3.中国科学院大学, 北京 100049;4.中国科学院海洋大科学研究中心, 山东 青岛 266071
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| 摘要: |
| 选用2004—2017年不同时期的Landsat ETM+/OLI影像，利用2014年海阳核电站附近实测数据建立该区域表层悬浮泥沙质量浓度的多组反演模型，对比分析悬浮泥沙的时空分布特点。结果表明，研究区内悬浮泥沙质量浓度冬季高于夏季，其分布受受河流输沙和海洋动力条件的双重影响，丁字河口为悬浮泥沙的重要供应来源。研究区内高质量浓度悬浮泥沙占比在海岸工程施工时期有升高现象。海岸工程建设对邻近海域悬浮泥沙的分布会产生影响，利用遥感技术反演海阳市邻近海域悬浮泥沙质量浓度可以反应人类海岸工程活动的影响。遥感技术监测悬浮泥沙的时空分布特点可以揭示环境的变迁，为众多海岸工程的建设提供数据支持和相关分析。 |
| 关键词: 海阳 遥感反演 悬浮泥沙分布 海岸工程 |
| DOI：10.11759/hykx20180821003 |
| 分类号:TP79 |
| 基金项目:中国科学院海洋地质与环境重点实验室开放基金项目（MGE2018KG09）；国家自然科学基金委员会-山东省人民政府海洋科学研究中心联合资助项目（U1606401）；国家自然科学基金青年基金（41706092） |
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| Spatial and temporal distributions of suspended sediment in sea area around Haiyang by remote sensing |
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WANG Qiang1,2,3,4, HUANG Hai-Jun1,2,3,4, ZHANG Ze-hua1,2,4, YAN Li-wen1,2,4, LIU Yan-xia1,2,4, BI Hai-bo1,2,4
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1.Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;2.CAS Key Laboratory of Experimental Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;3.University of Chinese Academy of Science, Beijing 100049, China;4.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266071, China
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| Abstract: |
| The construction of the Haiyang Harbor and Haiyang Nuclear Power Station have had certain impacts on the distribution of suspended sediment in the adjacent waters. In this paper, using data measured near the Haiyang nuclear power plant in 2014, we built multiple inversion models of the surface suspended sediment concentration. Based on these inversion models, we chose several sets of Landsat ETM+/OLI images during the 2004-2017 period to compare and analyze the spatial and temporal distribution patterns of suspended sediment. The results show that the concentration of suspended sediment in the study area is higher in winter than in summer, and its distribution is affected by both river sediment transport and the dynamic marine conditions. The Dingzi estuary is an important source of suspended sediment. The interannual variation in the suspended sediment concentration is in good agreement with the project construction timeline in the study area. In the long term, the use of remote sensing technology to solve inverse problems of suspended sediment concentrations can reflect environmental changes in the sea area and the impacts of human engineering activities on the coast. Thus, we can gain a better understanding of environmental changes and provide data support and correlation analysis for the construction of many coastal projects. |
| Key words: Haiyang remote sensing inversion suspended sediment distribution coastal engineering |
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