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- Clemens, F.H.L.R. (author) report 2001
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- Clemens, F.H.L.R. (author) doctoral thesis 2001
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- Clemens, F.H.L.R. (author) report 2002
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- Clemens, F.H.L.R. (author) report 2003
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- Clemens, F.H.L.R. (author) report 2004
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- Clemens, F.H.L.R. (author) report 2006
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Sterk, G. (author), Ten Veldhuis, J.A.E. (author), Clemens, F.H.L.R. (author), Berends, B.R. (author)Public health risks of urban pluvial flooding have so far received little attention in technical discussions. In this paper, the results of pathogen measurements in the sewer system of Utrecht and an urban flooding experiment are presented and used in an application of Quantitative Microbial Risk Assessment, an existing risk analysis method for...conference paper 2008
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Ten Veldhuis, J.A.E. (author), Clemens, F.H.L.R. (author), Van Gelder, P.H.A.J.M. (author)Traditional methods to evaluate flood risk mostly focus on storm events as the main cause of flooding. Fault tree analysis is a technique that is able to model all potential causes of flooding and to quantify both the overall probability of flooding and the contributions of all causes of flooding to the overall flood probability. This paper...conference paper 2008
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Van de Ven, F.H.M. (author), Ten Veldhuis, J.A.E. (author), Clemens, F.H.L.R. (author)Nieuwe KNMI-klimaatscenario’s: grotere rioleringen? Veel artikelen wijzen, na de openbaarmaking van de nieuwste inzichten van het KNMI over de ontwikkeling van het klimaat in Nederland, in die richting. Maar is dat niet te kort door de bocht?journal article 2009
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Ten Veldhuis, J.A.E. (author), Dirksen, J. (author), Clemens, F.H.L.R. (author)Data from call centres at two municipalities were analysed in order to quantify flooding frequencies and associated flood risks for three main failure mechanisms causing urban flooding. The aim was to find out whether current operational strategies are efficient for flood prevention and if directions for improvement could be found. The results...conference paper 2009
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Spekkers, M.H. (author), Ten Veldhuis, J.A.E. (author), Kok, M. (author), Clemens, F.H.L.R. (author)Insurance databases form a promising data source that can be used to improve pluvial flood damage estimations. This paper describes the key characteristics of an insurance database on water related damages to private buildings and content in the Netherlands that has been made available for research. The paper presents preliminary results of a...conference paper 2011
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- Pothof, I.W.M. (author), Tukker, M. (author), Kooij, K. (author), Clemens, F.H.L.R. (author) conference paper 2011
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Spekkers, M.H. (author), Ten Veldhuis, J.A.E. (author), Clemens, F.H.L.R. (author)Urban pluvial flood management requires detailed spatial and temporal information on flood characteristics and damaging consequences. There is lack of quantitative field data on pluvial flooding resulting in large uncertainties in urban flood model calculations and ensuing decisions for investments in flood protection. In this paper four...conference paper 2011
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Spekkers, M.H. (author), ten Veldhuis, J.A.E. (author), Kok, M. (author), Clemens, F.H.L.R. (author)The objective of this paper is to establish relationships between rainfall extremes and damage data from Dutch insurance industry. Rainfall data are based on a network of 33 automatic rain gauges held by the Royal Netherlands Meteorological Institute. Rainfall characteristics, such as peak rainfall intensity and rainfall volume, are correlated...conference paper 2012
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Nienhuis, J. (author), De Haan, C. (author), Langeveld, J.G. (author), Klootwijk, M. (author), Clemens, F.H.L.R. (author)Distributed Temperature Sensing (DTS) with fiber-optic cables is a powerful tool to detect illicit connections in storm sewer systems. High frequency temperature measurements along the in-sewer cable create a detailed representation of temperature anomalies due to illicit discharges. The detection limits of the monitoring equipment itself are...conference paper 2012
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- Dirksen, J. (author), Baars, E. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author) conference paper 2012
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Van Daal-Rombouts, P.M.M. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)Kallisto is a large scale research project at water board De Dommel in The Netherlands, in cooperation with several partners (Weijers et al, 2011). It consists of quantitative and qualitative continuous on line measurements and extended modelling of the WWTP (Waste Water Treatment Plant) Eindhoven, the contributing sewer systems and the river...conference paper 2012
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Spekkers, M.H. (author), Kok, M. (author), Clemens, F.H.L.R. (author), Ten Veldhuis, J.A.E. (author)In this paper, a database of water-related insurance damage claims related to private properties and content was analysed. The aim was to investigate whether high numbers of damage claims were associated with high rainfall intensities. Rainfall data were used for the period of 2003–2010 in the Netherlands based on a network of 33 automatic rain...journal article 2012
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Van Riel, W.A.P. (author), Langeveld, J.G. (author), Herder, P.M. (author), Clemens, F.H.L.R. (author)Sewer systems are capital-intensive infrastructures, requiring appropriate asset management to safeguard serviceability. In the Netherlands, effective sewer asset management is described by De Leeuw’s control paradigm. Reliable data and information are key elements in decision-making for rehabilitation and renewal of the assets. Rehabilitation...conference paper 2012
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Stanic, N. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)Asset management is a prerequisite for maintaining the required level of serviceability of urban drainage systems. The required asset management effort to achieve a certain level of service is unclear due to sewer systems process and structure complexity. One of the main questions of asset management is what kind of information is needed, and...conference paper 2012