Coping With Flash Floods by Eve Gruntfest, John Handmer

By Eve Gruntfest, John Handmer

This quantity is the court cases of a NATO-sponsored complex learn Institute (ASI) entitled "Coping with Flash Floods" held in Ravello, Italy on 8-17 November 1999. Thirty-five individuals from 9 nations attended the ASI, representing either built (United States, England, Italy, and Mexico) and constructing (Poland, Uganda, Greece, Ukraine, and Slovenia) international locations. contributors from quite a few professions and disciplines have been concerned together with a hydraulics engineering professor from Slovenia, 4 individuals from the Polish Institute of Meteorology and Water administration, and a U. S. Geological Survey learn hydrologist from Puerto Rico. even if the ASI used to be formally composed of academics and scholars, those roles have been blurred as all people shared info and ideas, and discovered from the opposite contributors through the 10 days. one of many highlights of the ASI used to be the collaborative attempt of individuals from varied nations and disciplines. It used to be relatively striking that the 2 engineers from Greece made the main passionate pleas for long-term sustainable suggestions to flash floods. another instance is that whereas there have been in simple terms 3 contributors with social technology backgrounds, many of the techniques specialise in the coverage and societal priorities, greater than the engineering, hydrologic or meteorologic efforts.

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This approach assumes reliable large-scale information and thus the smallscale rainfall perturbations are modeled simply by adding them on the underlying patterns. Obviously, this approach suffers from the uncertainties involved in the original information and introduces a source of high-resolution variability associated with the observations of the small-scale features. Downscaling methodologies in space and time are based on many underlying hypotheses that are not yet completely validated against suitable high-resolution observations.

Others are less measurable, such as levels of empowerment and resource management patterns and histories, but this does not make them less important. In some instances, indicators can be developed that will reflect the contribution a variable has to increasing or decreasing vulnerability. In other instances, a variable may serve to increase vulnerability in one context and have the opposite effect, or no effect, in other contexts. For instance, experience with an event has been found to have different impacts in different places.

Satellite data can be very useful for analyzing the pre-storm moisture environments conducive to intense convective storms, and they provide some real-time mesoscale diagnostics about stationary or quasi-stationary storm complexes. With time, finer resolution satellite data and the ability to effectively use satellite data in combination with other data will improve satellite-derived information for shortduration, intense storms. Rain gage networks are more widely available than radar data and offer direct measurement of precipitation and specific points.

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