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首页> 外文期刊>Geosciences >Investigating the Correlation of Tectonic and Morphometric Characteristics with the Hydrological Response in a Greek River Catchment Using Earth Observation and Geospatial Analysis Techniques
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Investigating the Correlation of Tectonic and Morphometric Characteristics with the Hydrological Response in a Greek River Catchment Using Earth Observation and Geospatial Analysis Techniques

机译:使用地球观测和地理空间分析技术研究了对希腊河流域水文反应的相关性和形态学特性的相关性

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Morphometric analysis can be used to investigate catchment dynamics and tectonic processes responsible for the development of drainage catchments and to support flood risk assessment. In this study, a comparative GIS-based morphometric analysis between the main southern and northern sub-catchments of the Sperchios River basin, Central Greece, was performed, using geospatial and remote sensing data. The goal was to investigate their correlation with the peculiar geotectonic activity and the frequent flash-flood events that occur in the river floodplain. All sub-catchments characteristics are linked with the geological formation types of the area, in combination with ongoing tectonic activity. The results indicate that drainage network development is significantly controlled by the region’s overall tectonic activity. The morphometric characteristics—i.e., bifurcation ratio, drainage density, circularity ratio, elongation ratio and water concentration–time values, reflect the flood-prone character of the southern part of Sperchios River catchment in comparison to the northern part, especially during intense rainfall events. The study can provide valuable insight into identifying how morphometric characteristics are associated with increased flood hazard.
机译:形态测量分析可用于调查负责引流集水区发育的集水动力学和构造过程,并支持洪水风险评估。在本研究中,使用地理空间和遥感数据进行了希腊孢子河流域的主要南部和北部分集之间的基于比较的GIS形态学分析。目标是调查与河流洪泛区发生的特殊地理位置活动和频繁的闪光事件的相关性。所有子集型特性与该地区的地质形成类型相关联,与持续的构造活动相结合。结果表明,排水网络发展受到该地区的整体构造活动的显着控制。形态学特性 - 即分叉比,排水密度,圆形比,伸长率和水浓度 - 时间值,反映了北部的斯皮尔奇河集水区南部的洪水特征,特别是在激烈的降雨事件期间。该研究可以提供有价值的洞察,以确定与增加的洪水危险有关的情况如何相关。

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