A study case of Baranca drainage basin flash-floods using the hydrological model of Hec-Ras

Abstract. Global change may imply important changes in the future occurrence and intensity of extreme events. Climate scenarios characterizing these plausible changes were previously obtained for the Llobregat River basin (NE Spain). This paper presents the implementation of these scenarios in the HBV (Hydrologiska Byråns Vattenbalansavdelning) hydrological model. Then, the expected changes in terms of flash flood occurrence and intensity are assessed for two different sub-basins: the Alt Llobregat and the Anoia (Llobregat River basin). The assessment of future flash floods has been done in terms of the intensity and occurrence of extreme events, using a peak over threshold (POT) analysis. For these two sub-basins, most of the simulated scenarios present an increase of the intensity of the peak discharge values. On the other hand, the future occurrence follows different trends in the two sub-basins: an increase is observed in Alt Llobregat but a decrease occurs in Anoia. Despite the uncertainties that appear in the whole process, the results obtained can shed some light on how future flash floods events may occur.

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Application of a distributed hydrological model to the design of a road inundation warning system for flash flood prone areas

Natural Hazards and Earth System Science ◽

10.5194/nhess-10-805-2010 ◽

2010 ◽

Vol 10 (4) ◽

pp. 805-817 ◽

Cited By ~ 29

Author(s):

P.-A. Versini ◽

E. Gaume ◽

H. Andrieu

Keyword(s):

Cross Sections ◽

Hydrological Model ◽

Flash Flood ◽

Warning System ◽

Flash Floods ◽

Probability Of Detection ◽

Distributed Hydrological Model ◽

Rainfall Runoff ◽

Erosion Processes ◽

Stage Of Development

Abstract. This paper presents an initial prototype of a distributed hydrological model used to map possible road inundations in a region frequently exposed to severe flash floods: the Gard region (South of France). The prototype has been tested in a pseudo real-time mode on five recent flash flood events for which actual road inundations have been inventoried. The results are promising: close to 100% probability of detection of actual inundations, inundations detected before they were reported by the road management field teams with a false alarm ratios not exceeding 30%. This specific case study differs from the standard applications of rainfall-runoff models to produce flood forecasts, focussed on a single or a limited number of gauged river cross sections. It illustrates that, despite their lack of accuracy, hydro-meteorological forecasts based on rainfall-runoff models, especially distributed models, contain valuable information for flood event management. The possible consequences of landslides, debris flows and local erosion processes, sometimes associated with flash floods, were not considered at this stage of development of the prototype. They are limited in the Gard region but should be taken into account in future developments of the approach to implement it efficiently in other areas more exposed to these phenomena such as the Alpine area.

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Post-event analysis and flash flood hydrology in Slovakia

Journal of Hydrology and Hydromechanics ◽

10.1515/johh-2016-0041 ◽

2016 ◽

Vol 64 (4) ◽

pp. 304-315 ◽

Cited By ~ 8

Author(s):

Kamila Hlavčová ◽

Silvia Kohnová ◽

Marco Borga ◽

Oliver Horvát ◽

Pavel Šťastný ◽

...

Keyword(s):

Hydrological Model ◽

Flash Flood ◽

Flash Floods ◽

Event Analysis ◽

Distributed Hydrological Model ◽

Rainfall Runoff ◽

Flood Events ◽

Spatially Distributed ◽

Catchment Size ◽

Flood Peaks

Abstract This work examines the main features of the flash flood regime in Central Europe as revealed by an analysis of flash floods that have occurred in Slovakia. The work is organized into the following two parts: The first part focuses on estimating the rainfall-runoff relationships for 3 major flash flood events, which were among the most severe events since 1998 and caused a loss of lives and a large amount of damage. The selected flash floods occurred on the 20th of July, 1998, in the Malá Svinka and Dubovický Creek basins; the 24th of July, 2001, at Štrbský Creek; and the 19th of June, 2004, at Turniansky Creek. The analysis aims to assess the flash flood peaks and rainfall-runoff properties by combining post-flood surveys and the application of hydrological and hydraulic post-event analyses. Next, a spatially-distributed hydrological model based on the availability of the raster information of the landscape’s topography, soil and vegetation properties, and rainfall data was used to simulate the runoff. The results from the application of the distributed hydrological model were used to analyse the consistency of the surveyed peak discharges with respect to the estimated rainfall properties and drainage basins. In the second part these data were combined with observations from flash flood events which were observed during the last 100 years and are focused on an analysis of the relationship between the flood peaks and the catchment area. The envelope curve was shown to exhibit a more pronounced decrease with the catchment size with respect to other flash flood relationships found in the Mediterranean region. The differences between the two relationships mainly reflect changes in the coverage of the storm sizes and hydrological characteristics between the two regions.

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Calculation of Critical Rainfall for Small-Watershed Flash Floods Based on the HEC-HMS Hydrological Model

Water Resources Management ◽

10.1007/s11269-019-02257-0 ◽

2019 ◽

Vol 33 (7) ◽

pp. 2555-2575 ◽

Cited By ~ 4

Author(s):

Wenlin Yuan ◽

Meiqi Liu ◽

Fang Wan

Keyword(s):

Hydrological Model ◽

Flash Floods ◽

Small Watershed ◽

Critical Rainfall

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A Distributed Hydrological Model of Flash-Floods

Coping With Flash Floods ◽

10.1007/978-94-010-0918-8_20 ◽

2001 ◽

pp. 203-218

Author(s):

Enrica Caporali

Keyword(s):

Hydrological Model ◽

Flash Floods ◽

Distributed Hydrological Model

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Ionic exchange in groundwater hydrochemical evolution. Study case: the drainage basin of El Pescado creek (Buenos Aires province, Argentina)

Environmental Earth Sciences ◽

10.1007/s12665-011-1318-z ◽

2011 ◽

Vol 65 (2) ◽

pp. 421-428 ◽

Cited By ~ 18

Author(s):

Eleonora S. Carol ◽

Eduardo E. Kruse ◽

Patricia C. Laurencena ◽

Adolfo Rojo ◽

Marta H. Deluchi

Keyword(s):

Buenos Aires ◽

Drainage Basin ◽

Buenos Aires Province ◽

Ionic Exchange ◽

Hydrochemical Evolution ◽

Evolution Study ◽

Study Case

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A physically based distributed hydrological model of wadi system to simulate flash floods in arid regions

Arabian Journal of Geosciences ◽

10.1007/s12517-013-1190-0 ◽

2013 ◽

Vol 8 (1) ◽

pp. 143-160 ◽

Cited By ~ 13

Author(s):

Mohamed Saber ◽

Toshio Hamaguchi ◽

Toshiharu Kojiri ◽

Kenji Tanaka ◽

Tetsuya Sumi

Keyword(s):

Arid Regions ◽

Hydrological Model ◽

Flash Floods ◽

Distributed Hydrological Model ◽

Physically Based

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Modelling flood hazard at Paratrechos/Peritsi stream, Naxos Island (Cyclades, Greece)

Revista de Geomorfologie ◽

10.21094/rg.2018.035 ◽

2018 ◽

Vol 20 (1) ◽

pp. 123-129

Author(s):

Niki EVELPIDOU ◽

Niki POLYKRETI ◽

Anna KARKANI ◽

Eirini KARDARA ◽

Stamatina SEFERLI ◽

...

Keyword(s):

Drainage Basin ◽

Flood Hazard ◽

Field Measurements ◽

Infiltration Rate ◽

Flash Floods ◽

Annual Rainfall ◽

The Relationship ◽

The City ◽

Geological Formations

Flash floods are one of the most significant natural hazards in the Mediterranean, affecting most basins in the region. Flash floods usually occur in ephemeral streams after particularly heavy rainfall. Although the average annual rainfall in the Cycladic islands (Greece) does not exceed 400 mm, flash floods are frequent, since most of that rainfall is often concentrated in few but very intense events. The case study is the drainage basin of Paratrechos or Peritsi stream in Naxos Island. This particular basin was selected due to the recorded flood events, the stream's proximity to the city that intensifies the flood impact, the slopes' gradient abrupt changes and the diverse infiltration rate of the geological formations. Furthermore, some parts of the basin are intact by human activities, while others are severely affected. This study investigates the relationship between rain and runoff through Unitary Hydrographs, in order to estimate and evaluate the flood potential of the aforementioned hydrologic basin and to determine the causes of the hazard and vulnerability. The Clark method was implemented and its results were further evaluated by field measurements.

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Hydrological Data-Model Work in Greenland

Hydrology Research ◽

10.2166/nh.1984.0004 ◽

1984 ◽

Vol 15 (1) ◽

pp. 39-56 ◽

Cited By ~ 1

Author(s):

Th. Thomsen ◽

G.H. Jørgensen

Keyword(s):

Model Calibration ◽

Hydrological Model ◽

Drainage Basin ◽

Model Simulation ◽

Drainage Basins ◽

Hydrological Data ◽

Heating And Cooling ◽

Temperature And Precipitation ◽

Runoff Model ◽

Ablation Model

The hydrological studies of the Greenland technical Organization in Greenland are being followed up at Copenhagen by hydrological data work as well as hydrological model-simulation. The hydrological regions vary greatly in Greenland, depending on whether the drainage basin is influenced by ablation runoff. To describe a runoff time series from these areas, a hydrological model calibration is made, followed by a simulation. In drainage basins influenced by rain and snow only, a slightly modified version of the precipitation runoff model (NAM) is applied. The parameter transfer for the determination of model input is found by intensive data analysis work here between Nuuk and Kangerluarsunnguup Tasersua (KANG) for temperature and precipitation along with detailed investigations in the basin. This is to ensure that a too short calibration period in connection with the adaption of a hydrological model to the basin data is balanced in the manner that these adapt the hydrological model, and not vice versa. In drainage basins also influenced by ablation runoff it is not possible to use a traditional precipitation runoff model but a hydrological ablation model has been developed in cooperation with The Geological Survey of Greenland. The hydrological ablation model describes the transfer of the temperature after heating and cooling factors as well as snow mobility on the ice, melting density criteria, refreezing etc. The model has been applied to the hydrological basin of Paakitsup Akuliarusersua (PAKI) at Ilulissat where 90% of the drainage basin is covered by the Ice cap. Data evaluation work prior to hydrological model calibration thus allows for a higher degree of simulation reliability.

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