搜索结果: 31-45 共查到“地球科学总论 flood”相关记录87条 . 查询时间(0.109 秒)
Is flow velocity a significant parameter in flood damage modelling?
flow velocity significant parameter flood damage modelling
<
2009/12/8
Flow velocity is generally presumed to influence flood damage. However, this influence is hardly quantified and virtually no damage models take it into account. Therefore, the influences of flow veloc...
High resolution simulations of a flash flood near Venice
High resolution simulations flash flood Venice
<
2009/12/8
During the MAP D-PHASE (Mesoscale Alpine Programme, Demonstration of Probabilistic Hydrological and Atmospheric Simulation of flood Events in the Alpine region) Operational Period (DOP, 1 June–30 Nove...
Assessing uncertainties in flood forecasts for decision making:prototype of an operational flood management system integrating ensemble predictions
Assessing uncertainties flood forecasts decision making operational flood management system
<
2009/12/8
Ensemble forecasts aim at framing the uncertainties of the potential future development of the hydro-meteorological situation. A probabilistic evaluation can be used to communicate forecast uncertaint...
Changes in the flood hazard in Germany through changing frequency and persistence of circulation patterns
flood hazard changing frequency persistence circulation patterns
<
2009/12/8
The link between trends in circulation patterns and trends in the flood magnitude is studied for 122 meso-scale catchments in Germany for a period of 52 years (1951–2002). Flood trends, significant at...
Planning of technical flood retention measures in large river basins under consideration of imprecise probabilities of multivariate hydrological loads
technical flood retention measures large river basins imprecise probabilities
<
2009/12/8
As a result of the severe floods in Europe at the turn of the millennium, the ongoing shift from safety oriented flood control towards flood risk management was accelerated. With regard to technical f...
Coupled modelling of subsurface water flux for an integrated flood risk management
Coupled modelling subsurface water flux integrated flood risk management
<
2009/12/8
Flood events cause significant damage not only on the surface but also underground. Infiltration of surface water into soil, flooding through the urban sewer system and, in consequence, rising groundw...
Contaminant transport to public water supply wells via flood water retention areas
Contaminant transport public water supply wells flood water retention areas
<
2009/12/8
The essential processes and mechanisms of the transport of contaminants from a river to a well field via a flood water retention area are presented. The transport is conceptualized as a succession of ...
Incorporating river morphological changes to flood risk assessment:uncertainties,methodology and application
river morphological changes flood risk assessment uncertainties methodology
<
2009/12/8
Risk zonation maps are mostly derived from design floods which propagate through the study area. The respective delineation of inundated flood plains is a fundamental input for the flood risk assessme...
Influence of rainfall spatial resolution on flash flood modelling
Influence rainfall spatial resolution flash flood modelling
<
2009/12/8
High resolution radar rainfall fields and a distributed hydrologic model are used to evaluate the sensitivity of flash flood simulations to spatial aggregation of rainfall at catchment scales ranging ...
Comparative analysis of model behaviour for flood prediction purposes using Self-Organizing Maps
Comparative analysis model behaviour flood prediction purposes Self-Organizing Maps
<
2009/12/8
Distributed watershed models constitute a key component in flood forecasting systems. It is widely recognized that models because of their structural differences have varying capabilities of capturing...
Towards operational near real-time flood detection using a split-based automatic thresholding procedure on high resolution TerraSAR-X data
real-time flood detection split-based automatic thresholding procedure TerraSAR-X data
<
2009/12/8
In this paper, an automatic near-real time (NRT) flood detection approach is presented, which combines histogram thresholding and segmentation based classification, specifically oriented to the analys...
Flood maps in Europe–methods,availability and use
Flood maps Europe methods availability use
<
2009/12/8
To support the transition from traditional flood defence strategies to a flood risk management approach at the basin scale in Europe, the EU has adopted a new Directive (2007/60/EC) at the end of 2007...
A contribution to improved flood magnitude estimation in base of palaeoflood record and climatic implications – Guadiana River (Iberian Peninsula)
flood magnitude estimation palaeoflood record climatic implications Guadiana River
<
2009/12/8
The Guadiana River has a significant record of historical floods, but the systematic data record is only 59 years. From layers left by ancient floods we know about we can add new data to the record, a...
Potential of historical meteorological and hydrological data for the reconstruction of historical flood events – the example of the 1882 flood in southwest Germany
historical meteorological and hydrological data reconstruction historical flood events
<
2009/12/8
This paper presents a hydrometeorological reconstruction of the flood triggering meteorological situation and the simulation of discharges of the flood event of December 1882 in the Neckar catchment i...
Rainfall thresholds and flood warning:an operative case study
Rainfall thresholds flood warning operative case study
<
2009/12/8
An operative methodology for rainfall thresholds definition is illustrated, in order to provide at critical river section optimal flood warnings. Threshold overcoming could produce a critical situatio...