Characterizing the Flash Flooding Risks from 2011 to 2016 over China

Ma, Ming; He, Bin; Wan, Junwei; Jia, Pengfei; Guo, Xirong; Gao, Liang; Maguire, Lane W.; Hong, Yang

doi:10.3390/w10060704

Cited by 22 publications

(14 citation statements)

References 22 publications

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“…These models showed that an increase of up to 36% in rainfall events is expected in some regions. Ma et al [7] studied the effects and frequency of flash floods in China. They arrived at the conclusion that flash floods are still the main cause of deaths in flood disasters.…”

Section: Introductionmentioning

confidence: 99%

Multi-Objective Optimization for Urban Drainage or Sewer Networks Rehabilitation through Pipes Substitution and Storage Tanks Installation

Ngamalieu-Nengoue

Martínez-Solano

Iglesias-Rey

et al. 2019

Water

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Drainage networks are civil constructions which do not generally attract the attention of decision-makers. However, they are of crucial importance for cities; this can be seen when a city faces floods resulting in extensive and expensive damage. The increase of rain intensity due to climate change may cause deficiencies in drainage networks built for certain defined flows which are incapable of coping with sudden increases, leading to floods. This problem can be solved using different strategies; one is the adaptation of the network through rehabilitation. A way to adapt the traditional network approach consists of substituting some pipes for others with greater diameters. More recently, the installation of storm tanks makes it possible to temporarily store excess water. Either of these solutions can be expensive, and an economic analysis must be done. Recent studies have related flooding with damage costs. In this work, a novel solution combining both approaches (pipes and tanks) is studied. A multi-objective optimization algorithm based on the NSGA-II is proposed for the rehabilitation of urban drainage networks through the substitution of pipes and the installation of storage tanks. Installation costs will be offset by damage costs associated with flooding. As a result, a set of optimal solutions that can be implemented based on the objectives to be achieved by municipalities or decisions makers. The methodology is finally applied to a real network located in the city of Bogotá, Colombia.

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Section: Introductionmentioning

confidence: 99%

Multi-Objective Optimization for Urban Drainage or Sewer Networks Rehabilitation through Pipes Substitution and Storage Tanks Installation

Ngamalieu-Nengoue

Martínez-Solano

Iglesias-Rey

et al. 2019

Water

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“…Over the past decades, flood-related disasters have caused economic losses of tens of billions of dollars (USD) and a large number of casualties each year (Hirabayashi et al, 2013). China, as a populous and developing country, has experienced several devastating flood events (Ma et al, 2018), such as the unprecedented great flood of Yangtze River in 1998, which affected 223 million people and resulted in direct economic loss of 166,600 million CNY (Chinese Yuan) (Zong & Chen, 2000). China, as a populous and developing country, has experienced several devastating flood events (Ma et al, 2018), such as the unprecedented great flood of Yangtze River in 1998, which affected 223 million people and resulted in direct economic loss of 166,600 million CNY (Chinese Yuan) (Zong & Chen, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Most of these losses and casualties appeared in densely populated and underdeveloped countries (Wu et al, 2012), and the increasing climate variability may exacerbate the flood damages in the future (Hirabayashi et al, 2013). China, as a populous and developing country, has experienced several devastating flood events (Ma et al, 2018), such as the unprecedented great flood of Yangtze River in 1998, which affected 223 million people and resulted in direct economic loss of 166,600 million CNY (Chinese Yuan) (Zong & Chen, 2000). Frequently occurring flood events highlight the importance of flood forecasting system (FFS), which can provide sufficient lead time for risk response.…”

Section: Introductionmentioning

confidence: 99%

The Assessment and Comparison of TMPA and IMERG Products Over the Major Basins of Mainland China

Lü

Ryu

et al. 2019

Earth and Space Science

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The Integrated Multi-satellitE Retrievals for Global Precipitation Measurement mission (IMERG) aims to deliver the "best" precipitation estimation from space and has attracted much attention. The Version 05 of IMERG products including the near-real-time "Early" and "Late" run products (IMERG-E and IMERG-L, respectively), and the post-real-time "Final" run IMERG product (IMERG-F) are assessed at both national and basin scales against gauge observations over Mainland China for a 4-year period (from April 2014 to March 2018). As control products for comparison, their predecessor Tropical Rainfall Measurement Mission (TRMM) Multi-satellite Precipitation Analysis (TMPA) products (i.e., TMPA-RT and TMPA-V7) are also employed. Components analysis confirms the best performance of IMERG-F among the five SPEs in three different categories. All five SPEs feature increasing bias and root mean square difference (RMSD) with increasing daily gauge total precipitation, and such issue is less pronounced for IMERG-F-as evidenced by the lowest bias and RMSD across all precipitation rates. Besides, compared to TMPA, IMERG products exhibit better accuracy in detecting real precipitation evens, especially for light-to-medium rain (<60 mm/day), but they do not demonstrate significant improvement in the assessment of severe over/underestimation. In the basin-scale comparison, all five SPEs catch the key variation feature of basin-averaged precipitation time series (except TMPA-RT over Continental River Basin). Overall, IMERG-F demonstrates the best performance over all nine basins despite the slight overestimation, followed by TMPA-V7. IMERG-E and IMERG-L show performance close to or even better than TMPA-V7 in terms of the correlation coefficient and RMSD.

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“…A high degree of attention to loss of human lives arising out of HMEs with respect to particular features is devoted to flood fatalities as, for example, in Australia (e.g., [11][12][13]), the United States (e.g., [14][15][16][17]), India (e.g., [18]) and China (e.g., [19]). In Europe, flood fatalities are combined with those associated with landslides (e.g., [20] or [21] on the global scale), and the majority of papers focus on the Mediterranean region (e.g., [22][23][24][25][26]).…”

Section: Introductionmentioning

confidence: 99%

Potential of Documentary Evidence to Study Fatalities of Hydrological and Meteorological Events in the Czech Republic

Brázdil

Chromá

Řehoř

et al. 2019

Water

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This paper presents the potential of documentary evidence for enhancing the study of fatalities taking place in the course of hydrological and meteorological events (HMEs). Chronicles, “books of memory”, weather diaries, newspapers (media), parliamentary proposals, epigraphic evidence, systematic meteorological/hydrological observations, and professional papers provide a broad base for gathering such information in the Czech Republic, especially since 1901. The spatiotemporal variability of 269 fatalities in the Czech Republic arising out of 103 HMEs (flood, flash flood, windstorm, convective storm, lightning, frost, snow/glaze-ice calamity, heat, and other events) in the 1981–2018 period is presented, with particular attention to closer characterisation of fatalities (gender, age, cause of death, place, type of death, and behaviour). Examples of three outstanding events with the highest numbers of fatalities (severe frosts in the extremely cold winter of 1928/1929, a flash flood on 9 June 1970, and a rain flood in July 1997) are described in detail. Discussion of results includes the problem of data uncertainty, factors influencing the numbers of fatalities, and the broader context. Since floods are responsible for the highest proportion of HME-related deaths, places with fatalities are located mainly around rivers and drowning appears as the main cause of death. In the further classification of fatalities, males and adults clearly prevail, while indirect victims and hazardous behaviour are strongly represented.

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Characterizing the Flash Flooding Risks from 2011 to 2016 over China

Cited by 22 publications

References 22 publications

Multi-Objective Optimization for Urban Drainage or Sewer Networks Rehabilitation through Pipes Substitution and Storage Tanks Installation

Multi-Objective Optimization for Urban Drainage or Sewer Networks Rehabilitation through Pipes Substitution and Storage Tanks Installation

The Assessment and Comparison of TMPA and IMERG Products Over the Major Basins of Mainland China

Potential of Documentary Evidence to Study Fatalities of Hydrological and Meteorological Events in the Czech Republic

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