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Flash floods: formation, study and distribution

Liudmila Kuksina, Valentin Golosov, O. Makarieva, D. Post
2020 E3S Web of Conferences  
The main issues of flash floods research and forecast are connected with small spatio-temporal scale of phenomenon and remoteness of river basins.  ...  The key reasons of their formation are intensive rainfall of short duration, location of river basin in mountain areas, and small catchment area, providing fast concentration of the runoff in river channel  ...  Flash floods in the USA form in very small river basins (0,125 -0,312 km 2 ) due to the conditions for rapid flow concentration. Flood wave is formed faster with less basin area.  ... 
doi:10.1051/e3sconf/202016302005 fatcat:shfhb7rw6jcjbhjno7qrqfgumm

Estimation of the Relative Severity of Floods in Small Ungauged Catchments for Preliminary Observations on Flash Flood Preparedness: A Case Study in Korea

Eung Seok Kim, Hyun Il Choi
2012 International Journal of Environmental Research and Public Health  
for flash flood events in each study catchment.  ...  flood severity in order to facilitate flash flood preparedness in small ungauged catchments.  ...  The developed new flash flood index FI was implemented for the two selected small ungauged basins in Korea, the Oui-mi River basin for the hill slope terrain region and the Mae-gok River basin for the  ... 
doi:10.3390/ijerph9041507 pmid:22690208 pmcid:PMC3366626 fatcat:ja437weg2nbwppxoe7gyb3gllu

An Operational Forecasting System for Flash Floods in Mountainous Areas in Taiwan

Yung-Ming Chen, Che-Hsin Liu, Hung-Ju Shih, Chih-Hsin Chang, Wei-Bo Chen, Yi-Chiang Yu, Wen-Ray Su, Lee-Yaw Lin
2019 Water  
Therefore, there is a great need to develop an operational forecasting system (OFS) for better flash flood prediction and warning in mountainous regions.  ...  The OFS has been adopted by the National Science and Technology Center for Disaster Reduction (NCDR) for forecasting flash floods every six hours in a mountainous floodplain in Taiwan.  ...  Hydrological Model Accurate predictions of runoff in a watershed are essential for flash flood mitigation and warning.  ... 
doi:10.3390/w11102100 fatcat:j262vpja5zgq3pcnrslwizdloy

New Methods of Flash Flood Forecasting in the Czech Republic [chapter]

Lucie Březková, Milan Šálek, Petr Novák, Hana Kyznarová, Martin Jonov
2011 IFIP Advances in Information and Communication Technology  
Although the flash flood is considered as hardly predictable phenomena, first efforts in flash floods forecasting have been already done [1] .  ...  The paper shows a detail case study of a flash flood -from the point of view of flash flood forecasting.  ...  The case studies of flash floods, which hit Hodonínka river and Sloup creek, proved that some of flash floods can be predicted several dozens of minutes in advance [1] .  ... 
doi:10.1007/978-3-642-22285-6_59 fatcat:ktcno4y3nfcm7anftzz2gzyv3q

A New Modeling Approach for Spatial Prediction of Flash Flood with Biogeography Optimized CHAID Tree Ensemble and Remote Sensing Data

Viet-Nghia Nguyen, Peyman Yariyan, Mahdis Amiri, An Dang Tran, Tien Dat Pham, Minh Phuong Do, Phuong Thao Thi Ngo, Viet-Ha Nhu, Nguyen Quoc Long, Dieu Tien Bui
2020 Remote Sensing  
This study proposed a novel modeling approach for spatial prediction of flash floods based on the tree intelligence-based CHAID (Chi-square Automatic Interaction Detector)random subspace, optimized by  ...  We conclude that the proposed method can accurately estimate the spatial prediction of flash floods in tropical storm areas.  ...  The flowchart with the CHAID-RS-BBO model for predicting flash flood susceptibility. Figure 4 . 4 Figure 4. The flowchart with the CHAID-RS-BBO model for predicting flash flood susceptibility.  ... 
doi:10.3390/rs12091373 fatcat:cnzp4su6sfgmvgmir4iraio62y

Longitudinal stage profiles forecasting in rivers for flash floods

Ming-Hsi Hsu, Shu-Horng Lin, Jin-Cheng Fu, Shih-Feng Chung, Albert S. Chen
2010 Journal of Hydrology  
A flash flood routing model with artificial neural networks predictions was developed for stage profiles forecasting.  ...  The results revealed that the flash flood river routing model incorporating with artificial neural networks can provide accurate river stages for flood forecasting.  ...  Please cite as: Longitudinal stage profiles forecasting in rivers for flash floods, Journal of Hydrology, 388 (3-4), 426-437, DOI:10.1016/j.jhydrol.2010.05.028.  ... 
doi:10.1016/j.jhydrol.2010.05.028 fatcat:5m22twdjzba6tjzoh53bl3wida

Flash Flood Early Warning Research in China [chapter]

Haichen Li, Tao Qin, Xiaohui Lei
2018 Engineering and Mathematical Topics in Rainfall  
Based on the literature research, a systematic framework for Chinese flash flood early warning research has been developed.  ...  Then, China starts exploring about flash flood early warning, which is optimal for developing country with dense populations, since the 1990s.  ...  Acknowledgements The authors are grateful to the National Key Research and Development Project of China (no. 2016YFC0401903) for financial support for this research. Author details  ... 
doi:10.5772/intechopen.69784 fatcat:2dksihajtzdjvpb4numh55n4g4

Flash flood early warning research in China

Haichen Li, Xiaohui Lei, Yizi Shang, Tao Qin
2018 International Journal of Water Resources Development  
Based on the literature research, a systematic framework for Chinese flash flood early warning research has been developed.  ...  Then, China starts exploring about flash flood early warning, which is optimal for developing country with dense populations, since the 1990s.  ...  Acknowledgements The authors are grateful to the National Key Research and Development Project of China (no. 2016YFC0401903) for financial support for this research. Author details  ... 
doi:10.1080/07900627.2018.1435409 fatcat:d3lyxfe7onclhh3lwbc7jfaq2q

Flash floods versus river floods – a comparison of psychological impacts and implications for precautionary behaviour

Jonas Laudan, Gert Zöller, Annegret H. Thieken
2019 NHESSD  
This study investigates the psychological impacts of river floods and compares them to the impacts of flash floods, using computer-aided telephone interviews that were conducted among flood affected households  ...  Moreover, it is revealed that the derived psychological indicators <q>coping appraisal</q>, <q>threat appraisal</q>, <q>burden</q> and <q>evasion</q> only show a limited usefulness for predictions of the  ...  Among strong flash floods and river floods, no significant difference in stress becomes apparent except for threat appraisal where the distribution of strong flash floods is based on a relatively small  ... 
doi:10.5194/nhess-2018-407 fatcat:7xjpspuoe5debe4tp6d2vik3uy

Flood Inundation Modelling of Flash Floods in Steep River Basins and Catchments

2017 Water  
the occurrence of rapidly varying flood events, such as flash floods.  ...  The results obtained suggest that in torrential river basins or catchments (i.e., river basins and catchments with a bed slope generally greater than 1%), the flood inundation modelling should be conducted  ...  Falconer and Reza Ahmadian have been leading a wide range of research projects in flood risk modelling and were instrumental in developing the original models.  ... 
doi:10.3390/w9090705 fatcat:pretqstui5bkfgwgms3vs4l6gy

Predicting Flood Hazard Indices in Torrential or Flashy River Basins and Catchments

Davor Kvočka, Reza Ahmadian, Roger A Falconer
2018 Water resources management  
Therefore, this paper focuses on proposing more accurate and detailed guidelines for predicting flood hazard indices in small and steep river basins or catchments, prone to the occurrence of flash flooding  ...  The results obtained in this study indicate that for river basins with an average bed gradient greater than 1% (i.e. torrential or flashy river basins or catchments), then the flood hazard indices should  ...  The topographical and hydrological data for the Borth study were provided by Natural Resources Wales (NRW). The contribution of all of these organisations is gratefully acknowledged.  ... 
doi:10.1007/s11269-018-1932-6 fatcat:57fug3tcczf5lkaxzt6lzvxm6u

Application of probabilistic precipitation forecasts from a deterministic model towards increasing the lead-time of flash flood forecasts in South Africa

E Poolman, H Rautenbach, C Vogel
2014 Water S.A  
The flash flood outlook for the 18-h extended forecast period investigated was also able to capture the location of the flash flood event and showed its ability to provide additional lead-time for flash  ...  The South African Flash Flood Guidance (SAFFG) system is a hydro-meteorological modelling system that provides forecasts for the next 1 to 6 h of potential flash floods in support of the flash flood warning  ...  ACKNOWLEDGEMENTS The SAWS and the Water Research Commission (WRC) provided funding for this work.  ... 
doi:10.4314/wsa.v40i4.18 fatcat:snkj25ikwfahvihe74ird2invq

Dynamic Pluvial Flash Flooding Hazard Forecast Using Weather Radar Data

Petr Rapant, Jaromír Kolejka
2021 Remote Sensing  
The method was tested at the local level (pluvial flash floods in two small regions of the Czech Republic) and the national level for rainfall episodes covering large areas in the Czech Republic.  ...  Several warning systems in the world try to use this time lag to predict the location, extent, intensity, and time of flash flooding.  ...  [28] identified some difficulties of flash flood forecasting. Among others, they mentioned that flash floods hit mostly small, ungauged watersheds.  ... 
doi:10.3390/rs13152943 fatcat:nnwwgbfmo5gqvfda7fvumas7ma

A GIS Based Methodology to Obtain the Hydrological Response to Storm Events of Small Coastal Basins, Prone to Flash Flooding

V. A. Kotinas
2021 International Journal of Environment and Climate Change  
The study area is located in the island of Samos, in Eastern Greece, where flash flood events are usual and pose a risk to areas located around rivers.  ...  Firstly, we examined the record of historic floods in the area, selecting a large flash flood event (November 2001) and then obtained the daily rainfall data, which are used by the SCS method for the calculations  ...  of predicting flash flood potential in small coastal watersheds.  ... 
doi:10.9734/ijecc/2021/v11i530417 fatcat:xzlx66scxrfvlpsxbowbxqi7au

Ensemble flash flood predictions using a high-resolution nationwide distributed rainfall-runoff model: case study of the heavy rain event of July 2018 and Typhoon Hagibis in 2019

Takahiro Sayama, Masafumi Yamada, Yoshito Sugawara, Dai Yamazaki
2020 Progress in Earth and Planetary Science  
Flash floods need to be predicted over a wide range with long forecasting lead time for effective evacuation.  ...  The ensemble spreads contain quantitative information of predictive uncertainty, which can be utilized for the decision making of emergency responses against flash floods.  ...  Tachikawa at Kyoto University for leading the SIP project and research advice. Authors' contributions TS proposed the topic, conceived, and designed the study.  ... 
doi:10.1186/s40645-020-00391-7 fatcat:m63oxuywsnbyfi5xdnle5nuspq
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