| 基于RS的辽河口三角洲现代沉积体形态演变研究 |
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| 引用本文： | 赵雪,刘大为,李家存,宫晓健,胡克.基于RS的辽河口三角洲现代沉积体形态演变研究[J].海洋开发与管理,2018,35(1):73-78. |
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| 作者姓名： | 赵雪 刘大为 李家存 宫晓健 胡克 |
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| 作者单位： | 中国地质大学(北京)海洋学院,中国地质大学(北京)海洋学院,首都师范大学资源环境与旅游学院,中国地质大学(北京)海洋学院,中国地质大学(北京)海洋学院 |
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| 基金项目： | 国土资源部辽河油田矿山地质环境治理效果定量评价研究(3-4-2014-175) |
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| 摘 要： | 辽河口是渤海重要的入海口之一,河口拦门沙浅滩发育。文章利用20世纪40年代、50年代军用地图和70年代以来Landsat系列卫星MSS、TM、OLI遥感影像,通过人工解译与水边线相结合的方法来提取海岸线和拦门沙浅滩形态信息,分析近70年来辽河口三角洲现代沉积体的形态演变。结果表明,近70年间,辽河口海岸线受河流沉积影响不断向海淤进,80年代以来,由于人类活动的影响使得海岸线变迁愈加显著;口门处小型拦门沙浅滩始终受河流和海洋水动力作用而频繁变动;盖州滩位置和主体形态无较大变化,仅滩体南部因受海洋动力改造而变化明显。
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| 关 键 词： | 遥感 辽河口 河口地貌 盖州滩 形态演变 |
Evolution of Modern Sedimentary Bodies of Liaohe Estuary Delta Based on Remote-Sensing Method |
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| ZHAO Xue,LIU Dawei,LI Jiacun,GONG Xiaojian and HU Ke.Evolution of Modern Sedimentary Bodies of Liaohe Estuary Delta Based on Remote-Sensing Method[J].Ocean Development and Management,2018,35(1):73-78. |
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| Authors: | ZHAO Xue LIU Dawei LI Jiacun GONG Xiaojian and HU Ke |
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| Institution: | School of Marine Science,China University of Geosiences,School of Marine Science,China University of Geosiences,College of Resource Environment and Tourism,Capital Normal University,School of Marine Science,China University of Geosiences and School of Marine Science,China University of Geosiences |
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| Abstract: | Shoals were developed in Liaohe Estuary which is one of the most important estuaries of Bohai Bay.The military maps of the 1940s and 1950s as well as the remote sensing images since the 1970s of the Landsat series satellite MSS,TM and OLI were used in this study.Waterline method and visually manual interpretation method were used to extract the shape information of the coastline and shoals in order to analyze the evolution of modern sedimentary bodies in Liaohe Estuary in the past 70 years.The result showed that: the coastline kept on extending to the sea under the influence of river current.Since the 1980s,anthropogenic activities had significant effects on the coastline.The shoals near the entrance of estuary had always been changed frequently under the influence of hydrodynamic forces of currents,tides and waves.The location and shape of the main body of Gaizhou Shoal had not significantly changed,while the southern part of the shoal was obviously modified by waves and tides. |
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| Keywords: | Remote sensing Liaohe Estuary Estuary geomorphology Gaizhou shoal Morphological evolution |
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