In this work the higher flood events occurred in Brazil from 1979 to 2010 were determined in order to describe the atmospheric circulation patterns associated with them. An analysis was hold in the 23 extreme ones, according to the season (summer/winter) and the region where the event occurred. The main causes identified were the El Nino episodes, Madden-Julian Oscillation, ITCZ and SACZ, besid...

The Nye model of jökulhlaups is able to explain both their periodicity and even the detailed shape of the flood hydrograph. In this paper, we show how the model can be used to predict the shape of the hydrographs from the subglacial lake Grı́msvötn beneath Vatnajökull in Iceland, and we comment on three particular issues that have proved contentious in the application of the Nye model: the role ...

The unusually severe monsoon rains which arrived in Pakistan on 22 July have added a humanitarian crisis to the security, political and economic challenges with which the country was already grappling. As the flood waters have receded, they have left behind devastation of lives, property and infrastructure. And they have also exposed with yet greater clarity Pakistan's political and institution...

A number of important misconceptions or fallacies stand in the way of a better understanding of the nation’s flood problem. The fallacies are not universal, with many flood experts, decision makers, and sectors of the public escaping their seductive logic. But enough people do fall prey to these fallacies of floods so as to create obstacles to improved utilization of the lessons of experience. ...

When a large-scale flood disaster occurs, it is important to identify the areas in short time order effectively support affected afterwards. Synthetic Aperture Radar (SAR) promising for detection. A number of change detection methods have been proposed detect flooded with pre- and post-event SAR data. However, remains difficult built-up due complicated scattering microwaves. To solve this issue...