4.5 Article

Risk evaluation and mitigation against flood danger in an arid environment. A case study (El Bayadh region, Algeria)

Journal

ENVIRONMENTAL MONITORING AND ASSESSMENT
Volume 195, Issue 2, Pages -

Publisher

SPRINGER
DOI: 10.1007/s10661-022-10905-z

Keywords

Flood risk; Rainfall duration; Rainfall characteristic; Frequency distribution; Rainfall intensity

Ask authors/readers for more resources

This research aims to evaluate and mitigate the risks of flood events in the El Bayadh region. Eight different frequency analysis distributions were used to develop rainfall intensity-duration-frequency and flood risk-duration-frequency curves. The results show that high-intensity rainfall lasts for short durations, while high flood risk lasts for intermediate durations.
Floods are among the most serious and devastating phenomena of natural disasters. Cities adjacent to flood-prone areas in the last decades have played a major role in increasing the potential adverse effects of flood damage. This research study aims to evaluate and mitigate the risks of flood events in the El Bayadh region, which suffers from poor infrastructure and drained networks. To achieve this, it is necessary to evaluate rainfall intensities and their limits for durations from 0.167 to 24 h with return periods from 2 to 1000 years. Eight different frequency analysis distributions were fit to the historical rainfall data series over 43 years (1970-2012) using hypothesis-based goodness tests and information-based criteria. The most appropriate distributions were used to develop the rainfall intensity-duration-frequency (IDF) and flood risk-duration-frequency (RDF) curves for the study area. The results show that high-intensity rainfall values last for short durations, while high flood risk values last for intermediate durations. The results of the flood RDF curves can provide useful information for policy makers to make the right decisions regarding the effectiveness of the region's protection structures against future flood risks.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.5
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available