scholarly journals Land Use Scenario Modeling for Flood Risk Mitigation

2010 ◽  
Vol 2 (5) ◽  
pp. 1327-1344 ◽  
Author(s):  
José I. Barredo ◽  
Guy Engelen
Keyword(s):  
Land Use ◽  
Flood Risk ◽  
Risk Mitigation ◽  
Scenario Modeling ◽  
Land Use Scenario

scholarly journals Historical Geomorphological Research of a Ligurian Coastal Floodplain (Italy) and Its Value for Management of Flood Risk and Environmental Sustainability

2018 ◽  
Vol 10 (10) ◽  
pp. 3727 ◽  
Author(s):  
Anna Roccati ◽  
Fabio Luino ◽  
Laura Turconi ◽  
Pietro Piana ◽  
Charles Watkins ◽  
...  
Keyword(s):  
Land Use ◽  
Environmental Sustainability ◽  
Flood Risk ◽  
18Th Century ◽  
Risk Mitigation ◽  
Morphological Changes ◽  
Geographical Information ◽  
Primary Role ◽  
Aerial Photos ◽  
Additional Information

The alluvial plain of the Entella River (Eastern Liguria), historically affected by damaging flood events, has been heavily modified over the past 250 years by human activity and natural processes. A qualitative and quantitative analysis of the morphological and land use evolution of the Entella floodplain since the 18th century was carried out using base maps and aerial photos ranging from 1758 to 2016. These diverse sources were Geographical Information System (GIS) georeferenced. Additional information on land-use change was gathered from historical documents and recent research reports. The main transformations to the floodplain include morphological changes, e.g., narrowing, channelization, displacement of the river channel and the advance of the coastal line due to fills and embankments. In addition, there has been very significant urbanization with loss of vegetated and agricultural areas. Our results indicate the primary role of human disturbance on morphological changes and landscape modifications of the coastal floodplain, particularly over the last 200 years. Furthermore, the historical geomorphological and cartographical analysis we adopted to reconstruct the floodplain transformation represents an essential tool in flood risk mitigation and environmental sustainability management, particularly in an urbanized coastal plain historically affected by floods.

scholarly journals Drivers of flood risk change in residential areas

2012 ◽  
Vol 12 (5) ◽  
pp. 1641-1657 ◽  
Author(s):  
F. Elmer ◽  
J. Hoymann ◽  
D. Düthmann ◽  
S. Vorogushyn ◽  
H. Kreibich
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Flood Risk ◽  
Flood Hazard ◽  
Residential Buildings ◽  
Economic Effects ◽  
Dominant Factor ◽  
Residential Areas ◽  
Land Use Patterns ◽  
Land Use Scenario

Abstract. The observed increase of direct flood damage over the last decades may be caused by changes in the meteorological drivers of floods, or by changing land-use patterns and socio-economic developments. It is still widely unknown to which extent these factors will contribute to future flood risk changes. We survey the change of flood risk in terms of expected annual damage for residential buildings in the lower part of the Mulde River basin (Vereinigte Mulde) between 1990 and 2020 in 10-yr time steps based on measurements and model projections. For this purpose we consider the complete risk chain from climate impact via hydrological and hydraulic modelling to damage and risk estimation. We analyse what drives the changes in flood risk and quantify the contributions of these drivers: flood hazard change due to climate change, land-use change and changes in building values. We estimate flood risk and building losses based on constant values and based on effective (inflation adjusted) values separately. For constant values, estimated building losses for the most extreme inundation scenario amount to more than 360 million € for all time steps. Based on effective values, damage estimates for the same inundation scenario decrease from 478 million € in 1990 to 361 million € in 2000 and 348 million € in 2020 (maximum land-use scenario). Using constant values, flood risk is 111% (effective values: 146%) of the 2000 estimate in 1990 and 121% (effective values: 115%) of the 2000 estimate for the maximum land-use scenario in 2020. The quantification of driver contributions reveals that land-use change in the form of urban sprawl in endangered areas is the main driver of flood risk in the study area. Climate induced flood hazard change is important but not a dominant factor of risk change in the study area. With the historical exception of the economic effects in Eastern Germany following the German reunification, value developments only have minor influence on the development of flood risk.

Integrated Transportation and Land Use Scenario Modeling by Visual Evaluation of Examples

2008 ◽  
Vol 2076 (1) ◽  
pp. 192-199 ◽  
Author(s):  
Benjamin Blandford ◽  
Ted Grossardt ◽  
John Ripy ◽  
Keiron Bailey
Keyword(s):  
Land Use ◽  
Visual Evaluation ◽  
Scenario Modeling ◽  
Land Use Scenario

scholarly journals Simplified graphical tools for assessing flood-risk change over large flood-prone areas

2015 ◽  
Vol 370 ◽  
pp. 209-215 ◽  
Author(s):  
F. Carisi ◽  
A. Domeneghetti ◽  
A. Castellarin
Keyword(s):  
Land Use ◽  
Flood Risk ◽  
Census Data ◽  
Risk Mitigation ◽  
Traditional Approach ◽  
Mitigation Strategies ◽  
Flood Vulnerability ◽  
Simplified Approach ◽  
Hydraulic Behaviour ◽  
Risk Mitigation Strategies

Abstract. We propose and investigate the reliability of simplified graphical tools, which we term Hypsometric Vulnerability Curves, HVCs, for assessing flood vulnerability and risk over large geographical areas and for defining sustainable flood-risk mitigation strategies. These curves rely on the use of inundation scenarios simulated by means of quasi-two-dimensional (quasi-2-D) hydrodynamic models that reproduce the hydraulic behaviour of the floodable area outside the main embankment system of the study river reach. We present an application of HVCs constructed on the basis of land use and census data collected during the last 50 years for assessing the recent dynamics of the flood vulnerability and risk over a large floodable area along a 350 km stretch of the River Po (Northern Italy). We also compared the proposed simplified approach with a traditional approach based on simulations performed with the fully-2-D hydrodynamic model TELEMAC-2-D, a widely employed and well-known 2-D finite-element scheme. By means of this comparison, we characterize the accuracy of the proposed simplified approach (i.e. quasi-2-D model and HVCs) for flood-risk assessment over large geographical areas and different historical land-use scenarios.

scholarly journals A comparative flood damage and risk impact assessment of land use changes

2021 ◽  
Author(s):  
Karen Gabriels ◽  
Patrick Willems ◽  
Jos Van Orshoven
Keyword(s):  
Land Use ◽  
Flood Risk ◽  
Risk Mitigation ◽  
Land Use Changes ◽  
Damage Model ◽  
Flood Damage ◽  
Infiltration Capacity ◽  
Forest Patches ◽  
Land Use Types ◽  
Rainfall Runoff Model

Abstract. Sustainable flood risk management encompasses the implementation of nature-based solutions to mitigate flood risk. These measures include the establishment of land use types with a high (e.g. forest patches) or low (e.g. sealed surfaces) water retention and infiltration capacity at strategic locations in the catchment. This paper presents an approach for assessing the relative impact of such land use changes on economic flood damages and associated risk. This spatially explicit approach integrates a reference situation, a flood damage model and a rainfall-runoff model, considering runoff re-infiltration and propagation, to determine relative flood risk mitigation or increment related to the implementation of land use change scenarios. The applicability of the framework is illustrated for a 4800 ha undulating catchment in the region of Flanders, Belgium by assessing afforestation of 187.5 ha (3.9 %), located mainly in the valleys, and sealing of 187.5 ha, situated mainly at higher elevations. These scenarios result in a risk reduction of 57 % (100 856 €) for the afforestation scenario and a risk increment of

scholarly journals A review of modelling methodologies for flood source area (FSA) identification

2021 ◽  
Author(s):  
Amrie Singh ◽  
David Dawson ◽  
Mark Trigg ◽  
Nigel Wright
Keyword(s):  
Flood Risk ◽  
Risk Mitigation ◽  
Ground Cover ◽  
Source Area ◽  
Urban Environments ◽  
Weather Patterns ◽  
Complex Process ◽  
Average Annual Loss ◽  
Flood Source ◽  
Modelling Approaches

AbstractFlooding is an important global hazard that causes an average annual loss of over 40 billion USD and affects a population of over 250 million globally. The complex process of flooding depends on spatial and temporal factors such as weather patterns, topography, and geomorphology. In urban environments where the landscape is ever-changing, spatial factors such as ground cover, green spaces, and drainage systems have a significant impact. Understanding source areas that have a major impact on flooding is, therefore, crucial for strategic flood risk management (FRM). Although flood source area (FSA) identification is not a new concept, its application is only recently being applied in flood modelling research. Continuous improvements in the technology and methodology related to flood models have enabled this research to move beyond traditional methods, such that, in recent years, modelling projects have looked beyond affected areas and recognised the need to address flooding at its source, to study its influence on overall flood risk. These modelling approaches are emerging in the field of FRM and propose innovative methodologies for flood risk mitigation and design implementation; however, they are relatively under-examined. In this paper, we present a review of the modelling approaches currently used to identify FSAs, i.e. unit flood response (UFR) and adaptation-driven approaches (ADA). We highlight their potential for use in adaptive decision making and outline the key challenges for the adoption of such approaches in FRM practises.

Assessment of renaturation measures for improvements in ecosystem services and flood risk mitigation

2021 ◽  
Vol 292 ◽  
pp. 112743
Author(s):  
Elisabetta Strazzera ◽  
Rossella Atzori ◽  
Daniela Meleddu ◽  
Vania Statzu
Keyword(s):  
Ecosystem Services ◽  
Flood Risk ◽  
Risk Mitigation

scholarly journals Needed: A systems approach to improve flood risk mitigation through private precautionary measures

2020 ◽  
Vol 11 ◽  
pp. 100080
Author(s):  
M.H. Barendrecht ◽  
N. Sairam ◽  
L. Cumiskey ◽  
A.D. Metin ◽  
F. Holz ◽  
...  
Keyword(s):  
Flood Risk ◽  
Systems Approach ◽  
Risk Mitigation ◽  
Precautionary Measures
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