塞弗鲁德河三角洲海岸带自然脆弱性评价

IF 1.3 4区 地球科学 Q4 OCEANOGRAPHY
H. Khoshravan
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引用次数: 0

摘要

背景和目的:海岸物理脆弱性研究由Gornitz于1991年首次在大西洋西海岸进行,此后在世界其他地区进行了广泛的研究。在本文中,确定Sefidrood三角洲海岸物理脆弱性的严重程度,确定海岸地貌及其随时间的变化是研究的主要目标。方法:利用野外监测结果,在GIS环境下对海岸线遥感研究结果和数字化变化进行解译,研究海岸坡度、海岸沉积物类型、海岸地貌类型、海岸线变化率等海岸物理脆弱性的有效准则,计算Sefidrood三角洲海岸的物理脆弱性。结果表明:Sefidrood三角洲海岸不同区域的自然脆弱性程度存在差异。通往塞菲鲁德河西部和东部河口的区域自然脆弱性最高,随着河口向西和向东的距离增加,自然脆弱性程度逐渐降低。Sefidrud三角洲的西部和东部末端形成了侵蚀阶地和沙喷,从而形成了Sefidrud河口附近的侵蚀性海岸地貌。结论:Sefidrood三角洲受到里海侵蚀力的影响,Sefidrood河在沿岸水流的影响下产生的大量砂质物质沉积,有能力在沿海地区形成沙吐等沉积地貌。绘制白河三角洲物理脆弱性地图为海岸带综合管理决策提供了条件,该方法可用于其他沿海地区。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The evaluating coastal zone Physical vulnerability, Sefidrood River Delta
Background and Objectives: Coastal physical vulnerability studies were first conducted by Gornitz in 1991 on the west coast of the Atlantic Ocean, and have since been studied extensively in other parts of the world. In this article, determining the severity of physical vulnerability of Sefidrood delta coast, identifying coastal landforms and how they deform over time are the main objectives of the research. Methods: By using the results of field monitoring, interpreting the results of remote sensing studies and digital changes of coastlines in the GIS environment, and by studying the effective criteria in the physical vulnerability of coasts such as: coast slope, type of coastal sediments, type of coastal landforms, rates Coastal line changes, physical vulnerability of Sefidrood delta coast were calculated. Findings: In The results show that the degree of physical vulnerability of Sefidrood delta coast varies in different regions. Areas leading to the western and eastern estuaries of Sefidrud River have the highest physical vulnerability and with increasing distance from the estuary to the west and east, the degree of physical vulnerability gradually decreases. Erosive coastal landforms in the area adjacent to the Sefidrood estuary have been formed as erosive terraces and sand spits have formed in the western and eastern extremities of the Sefidrud delta. Conclusion: The Sefidrood delta is affected by the erosive forces of the Caspian Sea, and the high volume of sedimentation of sandy materials produced by the Sefidrood River under the influence of coastal currents has the ability to create sedimentary landforms such as sand spits in coastal area. Achieving a physical vulnerability map of the White River Delta provides the conditions for making the right decisions in the integrated coastal zone management, and this method can be used for other coastal areas .
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来源期刊
Journal of Oceanography
Journal of Oceanography 地学-海洋学
CiteScore
3.50
自引率
13.00%
发文量
42
审稿时长
6-12 weeks
期刊介绍: The Journal of Oceanography is the official journal of the Oceanographic Society of Japan and open to all oceanographers in the world. The main aim of the journal is to promote understandings of ocean systems from various aspects including physical, chemical, biological, geological oceanography as well as paleoceanography, etc. The journal welcomes research focusing on the western North Pacific and Asian coastal waters, but the study region is not limited to the Asian Pacific. The journal publishes original articles, short contributions, reviews, and correspondence in oceanography and related fields.
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