Floodnet: a telenetwork for acquisition, processing and dissemination of earth observation data for monitoring and emergency management of floods

Blyth, K.

doi:10.1002/(sici)1099-1085(199708)11:10<1359::aid-hyp529>3.0.co;2-6

Cited by 26 publications

(18 citation statements)

References 9 publications

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“…the proliferation of global space-borne data (Lincoln, 2007), to perform a worldwide comparative analysis (Bloeschl, 2006) of floodplains as human-water systems. In particular, various sources of remote sensing data characterised by a spatial resolution useful for the observation of the most significant floodplain dynamics (50-250 m; Blyth, 1997;Apel et al, 2009: Di Baldassarre et al, 2011 are currently available, such as: space-borne digital elevation models for the numerical description of floodplain topographies (LeFavour and Alsdorf, 2005;Schumann et al, 2010); flood extent maps derived from satellite imagery for the observation of inundation patterns (Alsdorf and Lettenmaier, 2003;Di Baldassarre et al, 2011); and population distribution data for tracking patterns of human settlements (Linard and Tatem, 2011;Linard et al, 2012).…”

Section: Methodological Implications Of Transdisciplinary Researchmentioning

confidence: 99%

Towards understanding the dynamic behaviour of floodplains as human-water systems

Baldassarre

Kooy

Kemerink

et al. 2013

Hydrol. Earth Syst. Sci.

220

127

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Abstract. This paper offers a conceptual approach to explore the complex dynamics of floodplains as fully coupled human-water systems. A number of hydrologists have recently investigated the impact of human activities (such as flood control measures, land-use changes, and settlement patterns) on the frequency and severity of floods. Meanwhile, social scientists have shown how interactions between society and waters in deltas and floodplain areas, including the frequency and severity of floods, have an impact on the ways in which social relations unfold (in terms of governance processes, policies, and institutions) and societies are organised (spatially, politically, and socially). However, we argue that the interactions and associated feedback mechanisms between hydrological and social processes remain largely unexplored and poorly understood. Thus, there is a need to better understand how the institutions and governance processes interact with hydrological processes in deltas and floodplains to influence the frequency and severity of floods, while (in turn) hydrological processes co-constitute the social realm and make a difference for how social relations unfold to shape governance processes and institutions. Our research goal, therefore, is not in identifying one or the other side of the cycle (hydrological or social), but in explaining the relationship between them: how, when, where, and why they interact, and to what result for both social relations and hydrological processes? We argue that long time series of hydrological and social data, along with remote sensing data, can be used to observe floodplain dynamics from unconventional approaches, and understand the complex interactions between water and human systems taking place in floodplain areas, across scales and levels of human impacts, and within different hydro-climatic conditions, socio-cultural settings, and modes of governance.

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Section: Methodological Implications Of Transdisciplinary Researchmentioning

confidence: 99%

Towards understanding the dynamic behaviour of floodplains as human-water systems

Baldassarre

Kooy

Kemerink

et al. 2013

Hydrol. Earth Syst. Sci.

220

127

View full text Add to dashboard Cite

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“…Data on socio-economics, required to estimate D, are typically available at resolutions of 1 × 1 km 2 in the current conditions, making 1 × 1 km 2 a more appropriate scale for global flood risk assessment. 1 × 1 km 2 was also identified as the minimal resolution for floodplain mapping according to Blyth (1997). Note that for other purposes than global risk assessments, 1 × 1 km 2 may be considered a low resolution.…”

Section: Downscaling Of Floods To Appropriate Resolutionmentioning

confidence: 99%

A framework for global river flood risk assessments

Winsemius

Beek

Jongman

et al. 2013

Hydrol. Earth Syst. Sci.

393

273

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Abstract. There is an increasing need for strategic global assessments of flood risks in current and future conditions. In this paper, we propose a framework for global flood risk assessment for river floods, which can be applied in current conditions, as well as in future conditions due to climate and socio-economic changes. The framework's goal is to establish flood hazard and impact estimates at a high enough resolution to allow for their combination into a risk estimate, which can be used for strategic global flood risk assessments. The framework estimates hazard at a resolution of ∼ 1 km 2 using global forcing datasets of the current (or in scenario mode, future) climate, a global hydrological model, a global flood-routing model, and more importantly, an inundation downscaling routine. The second component of the framework combines hazard with flood impact models at the same resolution (e.g. damage, affected GDP, and affected population) to establish indicators for flood risk (e.g. annual expected damage, affected GDP, and affected population). The framework has been applied using the global hydrological model PCR-GLOBWB, which includes an optional global flood routing model DynRout, combined with scenarios from the Integrated Model to Assess the Global Environment (IM-AGE). We performed downscaling of the hazard probability distributions to 1 km 2 resolution with a new downscaling algorithm, applied on Bangladesh as a first case study application area. We demonstrate the risk assessment approach in Bangladesh based on GDP per capita data, population, and land use maps for 2010 and 2050. Validation of the hazard estimates has been performed using the Dartmouth Flood Observatory database. This was done by comparing a high return period flood with the maximum observed extent, as well as by comparing a time series of a single event with Dartmouth imagery of the event. Validation of modelled damage estimates was performed using observed damage estimates from the EM-DAT database and World Bank sources. We discuss and show sensitivities of the estimated risks with regard to the use of different climate input sets, decisions made in the downscaling algorithm, and different approaches to establish impact models.

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“…The other two parameters are obtained by measuring the angles at which a beam is transmitted and received after reflection. From these three parameters one can obtain the distance between the object and the scanner (distance OS), which is given in micrometers [8].…”

Section: Terrestrial Measurements Systemsmentioning

confidence: 99%

Using a Laser Scanning to Construct a 3D Numerical Model to Study the Flooding Risk in Urban Area

Meouche¹,

Rezoug²,

Vandevenne³

et al. 2013

IJET

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Abstract-Risk studies are very important to avoid human and economic losses. However the study cost becomes very expensive in some case when the site scale is very large. That's why; using a numerical simulation with a small-scale model is considered as a suitable solution. In order to have accurate results on which we can rely to assess the risk, it is necessary to use sophisticated means to simulate with a high efficiency the study area. One of the very accurate means able to do that is based on laser scanning techniques. This article describes how a 3D laser scanning can provide quickly and accurately a 3D model of the study area reduced model for the risk simulation step. Moreover, the necessary processing steps in the laser software named Geomagic v12, are highlighted to achieve a neat 3-D model. The article also describes the preparation of the model for the numerical simulation step.Index Terms-3D laser scanner, processing data, 3D modeling, simulation.

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Floodnet: a telenetwork for acquisition, processing and dissemination of earth observation data for monitoring and emergency management of floods

Cited by 26 publications

References 9 publications

Towards understanding the dynamic behaviour of floodplains as human-water systems

Towards understanding the dynamic behaviour of floodplains as human-water systems

A framework for global river flood risk assessments

Using a Laser Scanning to Construct a 3D Numerical Model to Study the Flooding Risk in Urban Area

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