当前位置: X-MOL 学术Remote Sens. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Multiscale Hydrogeomorphometric Analysis for Fluvial Risk Management. Application in the Carrión River, Spain
Remote Sensing ( IF 5 ) Pub Date : 2021-07-27 , DOI: 10.3390/rs13152955
Lorena Lombana , Antonio Martínez-Graña

The sustainable management of fluvial systems requires reliable knowledge of the mechanisms that control the basins and their drainages, which in turn must be prioritized for the application of measures for flood-risk reduction. Thus, given the need to develop methodological frameworks capable of integrating remote sensing technologies at different scales, as well as traditional metrics and anthropic variables, in this study, a multiscale method is proposed for the characterization and prioritization of river stretches for fluvial risk management. This methodology involves the study of drivers at the watershed level, and a detailed morphometric and hydrogeomorphological analysis of the main channel for fluvial landscape classification, segmentation, and aggregation into units, considering also anthropic variables. Therefore, it includes the use of LiDAR data and exploration GIS tools, whose results are corroborated through fieldwork, where ephemeral and topographic evidence of fluvial dynamics are collected. The procedure is validated in the Carrión river basin, Palencia, Spain, where a high degree of maturity and geomorphological development are determined. Hence, the main channel can be classified into eight geomorphic units and divided into homogeneous segments, which, according to categorical elements such as urban interventions, are prioritized, obtaining, as a result, six stretches of main interest for river risk management.

中文翻译:

用于河流风险管理的多尺度水文地貌测量分析。在西班牙腐肉河中的应用

河流系统的可持续管理需要对控制流域及其排水系统的机制有可靠的了解,而这些知识又必须优先用于应用减少洪水风险的措施。因此,鉴于需要开发能够在不同尺度上整合遥感技术以及传统指标和人为变量的方法框架,在本研究中,提出了一种多尺度方法,用于河流风险管理的河段特征和优先级排序。这种方法涉及流域层面的驱动因素研究,以及对河流景观分类、分割和聚合成单元的主要通道进行详细的形态测量和水文地貌分析,同时还考虑了人为变量。所以,它包括使用 LiDAR 数据和勘探 GIS 工具,其结果通过实地工作得到证实,其中收集了河流动力学的短暂和地形证据。该程序在西班牙帕伦西亚的 Carrión 河流域得到验证,在那里确定了高度的成熟度和地貌发育。因此,主河道可以分为八个地貌单元并划分为同质段,根据城市干预等分类要素,这些段被优先考虑,从而获得河流风险管理的六个主要利益段。确定高度成熟和地貌发育的地方。因此,主河道可以分为八个地貌单元并划分为同质段,根据城市干预等分类要素,这些段被优先考虑,从而获得河流风险管理的六个主要利益段。确定高度成熟和地貌发育的地方。因此,主河道可以分为八个地貌单元并划分为同质段,根据城市干预等分类要素,这些段被优先考虑,从而获得河流风险管理的六个主要利益段。
更新日期:2021-07-27
down
wechat
bug