Assessment and mapping of flash flood hazard severity in Jordan

IF 2.2 Q3 WATER RESOURCES

International Journal of River Basin Management Pub Date : 2021-09-23 DOI:10.1080/15715124.2021.1981354

Lubna AlMahasneh, Doaa Abuhamoor, K. Al Sane, N. Haddad

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引用次数: 2

Abstract

ABSTRACT Flash flood is among the most catastrophic hazards worldwide. Jordan has been witnessing unusual shocks of flash floods with regular intervals. It is best described as sudden events involving ‘too much water in too little time’. This study aims at presenting flash flood assessment and producing a potential flood hazard severity map. The GIS-based hydrology assessment was carried out using Rational model. The model integrates biophysical characteristics of the basin and the hydrometrological information. The range of peak discharge was around 5 MCM in the Jordan Valley to 65 MCM in W. Hammad basin. Flood hazard severity map was produced based on Integrated Context Analysis approach (ICA) at surface basin's level. It has been shown that 17.6% of Jordan's area is categorized into ‘high’ class hazard severity. The study provides consistent information at a national-scale on flood hazard reclassification to support the development of the implementation of flood management policy of flood mitigation activities. Also, it proves the usefulness of GIS technology in model preparation and parameterizations.

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约旦山洪灾害严重程度的评估和制图

摘要山洪暴发是世界范围内最具灾难性的灾害之一。约旦经常发生罕见的山洪暴发。它最好被描述为涉及“在太短的时间内用太多的水”的突发事件。本研究旨在进行山洪评估，并绘制潜在的洪水灾害严重程度图。利用Rational模型进行了基于GIS的水文评价。该模型综合了盆地的生物物理特征和水文气象信息。约旦河谷的洪峰流量约为500万立方米，而哈马德河流域的洪峰流量为6500万立方米。基于综合上下文分析方法（ICA），在地表流域层面绘制了洪水灾害严重程度图。研究表明，约旦17.6%的地区属于“高”级危险严重程度。该研究在全国范围内提供了关于洪水灾害重新分类的一致信息，以支持制定防洪活动的洪水管理政策。同时，也证明了GIS技术在模型准备和参数化方面的实用性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of River Basin Management WATER RESOURCES-

CiteScore

6.00

自引率

4.00%

发文量

期刊介绍： include, but are not limited to new developments or applications in the following areas: AREAS OF INTEREST - integrated water resources management - watershed land use planning and management - spatial planning and management of floodplains - flood forecasting and flood risk management - drought forecasting and drought management - floodplain, river and estuarine restoration - climate change impact prediction and planning of remedial measures - management of mountain rivers - water quality management including non point source pollution - operation strategies for engineered river systems - maintenance strategies for river systems and for structures - project-affected-people and stakeholder participation - conservation of natural and cultural heritage