Flash floods are considered to be one the worst kind of hazard. They are characterized by their suddenness, rarity, small scale, heavy rain and peak discharge, unpredictable, fast and violent movement. It has severe effects on human society in the form life losses, damages to property, roads, communication and on natural settings. Advances in hydrology, meteorology, engineering, using of GIS an...

Mapping flash flood susceptibility is effective for mitigating the negative impacts of floods. However, a variety conditioning factors have been used to generate maps in various studies. In this study, we proposed combining logistic regression (LR) and random forest (RF) models with embedded feature selection (EFS) filter specific sets two map mainstream basin Songhua River. According EFS resul...

Pressures arising from agriculture, infrastructures and settlements have gradually reduced natural spaces of European watercourses limiting their self-regulation capacities, environmental social potentials, resulting in widespread critical anthropic features. Dealing with flood phenomena adds artificiality, as several works for hydraulic protection are necessary. This was the case Pistoia, a sm...

In flash flood prone areas, roads are often the first assets affected by inundations which make rescue operations difficult and represent a major threat to lives: almost half of the victims are car passengers trapped by floods. In the past years, the Gard region (France) road management services have realized an extensive inventory of the known road submersions that occurred during the last 40 ...

The current Internet infrastructure has very few built-in protection mechanisms and is therefore vulnerable to attacks and failures. In particular, recent events have illustrated the Internet’s vulnerability to both denial of service (DoS) attacks and flash crowds in which one or more links in the network (or servers at the edge of the network) become severely congested. In both flash crowds an...

This study presents a spatiotemporal analysis tool, called Shyska . This tool allows the simulation and prediction of flash floods in semiarid basins. Shyska has been developed by Geographical Information System (GIS)-embedded functions, allowing the integration of hydrometeorological information from modern technologies of data acquisition in real time. A Digital Elevation Model (DEM) is used ...

Flash floods represent one of the natural hazards that causes greatest number victims in Mediterranean area. These processes occur by short and intense rainfall affecting limited areas a few square kilometers, with rapid hydrological responses. Among flood frequency increase last decades are effects urban expansion fluvial pertinence climatic change, namely interaction between anthropogenic lan...

Recent events have illustrated the Internet’s vulnerability to both denial of service (DoS) attacks and flash crowds in which links (or servers) in the network become severely congested. In both DoS attacks and flash crowds, the congestion is neither due to a single flow, nor due to a general increase in traffic, but to a well-defined subset of the traffic — an aggregate. This paper proposes ag...