| 摘要: |
| 文章利用1985、1995、2005、2009年的Landsat卫星遥感影像和2015年的GF-1卫星遥感影像,分析近30年来图们江口海岸线的变化特征。结果表明:近30年来图们江口海岸线长度整体呈增长态势,累积增加0.66km,主要由人类开发活动及泥沙堆积等引起;人工岸线比例增大,但1985—1995年因河流改道致使岸线减少3.8km。1985—2005年海岸带淤积面积大于侵蚀面积,其中河流改道使1995—2005年淤积面积达到4.5227km2;2005—2015年侵蚀面积大于淤积面积;2005—2009年径流量减少使侵蚀面积达到4.2037km2。河口处的岸线迁移变化最大,其他地区较稳定。 |
| 关键词: 遥感 图们江口 海岸线 岸线变迁 |
| DOI： |
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| 基金项目:高分海岸带遥感监测与应用示范. |
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| Coastline Monitoring by Remote Sensing and Change Analysis in Tumen River Estuary and the Adjacent Area |
| MIAO Junwei,MA Yi,ZHANG Jie,SUN Weifu,HU Yabin |
| Shandong University of Science And Technology;The First Institute of Oceanography，SOA;The First Institute of Oceanography，SOA;Dalian Maritime University |
| Abstract: |
| Four years’ Landsat satellite images of 1985，1995，2005，2009 and one year’s GF-1 remote sensing satellite images of 2015 were used to analyze the changing characteristics of the past 30 years in the Tumen River estuary coastline.The results showed that：over the past 30 years，the whole coastline length shows an increasing trend，mainly caused by human development activities and sediment buildup，and the cumulative increase is 0.66 km.The ratio of artificial shoreline increased，but between 1985 and 1995，the coastline length decreased 3.8 km because the river course was diverted.Between 1985 and 2005，the deposition area of the coastal zone was larger than that of the erosion area，and the river course was diverted to make the deposition area increase 4.522 7 km2 between 1995 and 2005.From 2005 to 2015，the erosion area was greater than the deposition area.From 2005 to 2009，the erosion area reached to 4.203 7 km2 because the runoff had been reduced.The shoreline at the mouth had the greatest changes in migration and other regions were more stable. |
| Key words: Remote sensing,Tumen River estuary,Coastline,Coastline change |
