| 渤海湾北部滨外沙坝演变的遥感分析 |
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| 引用本文： | 高伟明,杨剑霞.渤海湾北部滨外沙坝演变的遥感分析[J].地理与地理信息科学,2006,22(5):41-44. |
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| 作者姓名： | 高伟明 杨剑霞 |
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| 作者单位： | 1. 河北师范大学资源与环境科学学院,河北,石家庄,050016
2. 河北省测绘局,河北,石家庄,050010 |
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| 基金项目： | 河北省国土资源厅“河北省海岸带变迁与演变趋势研究”项目 |
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| 摘 要： | 通过多时相航空遥感影像和MSS、TM、ETM卫星遥感影像的解译、对比,分析渤海湾北部滨外沙坝近50年来的演变过程。结果表明:在波浪、潮汐、潮流和河流等动力因素的作用下,滨外沙坝的动态变化较为明显,在整体西向漂移、向海侧边线蚀退的背景下,个体沙坝的变化表现为陆向蚀退、侵蚀消亡、西南向漂移与端点蚀退、西向漂移与端点延展和海向淤进与陆向蚀退交替等多种态势。
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| 关 键 词： | 渤海湾北部 滨外沙坝 演变 遥感 |
| 文章编号： | 1672-0504(2006)05-0041-04 |
| 修稿时间： | 2006年6月25日 |
Analysis on Evolution of Offshore Bars in the North Area of the Bohai Sea Bay Using Remote Sensing |
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| GAO Wei-ming,YANG Jian-xia.Analysis on Evolution of Offshore Bars in the North Area of the Bohai Sea Bay Using Remote Sensing[J].Geography and Geo-Information Science,2006,22(5):41-44. |
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| Authors: | GAO Wei-ming YANG Jian-xia |
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| Abstract: | This paper systematically analyzes the evolution of offshore bars in the north area of the Bohai Sea bay in the recent 50 years based on interpreting and comparatively analyzing both the multi-temporal aerial remote sensing images and satellite remote sensing images such as MSS,TM,ETM.The result shows:the offshore bars change obviously under the actions of multiple dynamical factors such as wave,tide,tidal current and river current,and under the background of that the offshore bars are drifting toward to the west on the whole and their edges toward the sea have been eroded and faded,several situations of the offshore bars are represented,which include the eroded offshore bars towards the land,the disappearance ones by erosion,the drifting ones towards southwest with their two eroded end points,the drifting ones towards the west with their two extended end points,and others with the alternation between the situations of accretion towards the sea and erosion towards the land. |
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| Keywords: | the north area of the Bohai Sea bay offshore bars evolution remote sensing |
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