| publications-791 |
PEER REVIEWED ARTICLE |
2014 |
Lena M. Tallaksen , Kerstin Stahl |
Spatial and temporal patterns of large-scale droughts in Europe: Model dispersion and performance |
|
10.1002/2013gl058573 |
Data Management & Analytics |
Precipitation & Ecological Systems |
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AbstractThis study explores the performance of a suite of offâline, global (hydrological and land surface) models in mapping spatial and temporal patterns of largeâscale hydrological droughts in Europe from simulated runoff in the period 1963â2000. Consistent model behavior was found for annual variability in mean drought area, whereas high model dispersion was revealed in the weekly evolution of contiguous area in drought and its annual maximum. Comparison with nearly three hundred catchmentâscale streamflow observations showed an overall tendency to overestimate the number of drought events and hence underestimate drought duration, whereas persistence in droughtâaffected area (weekly mean) was underestimated, noticeable for one group of models. The high model dispersion in temporal and spatial persistence of drought identified implies that care should be taken when analyzing drought characteristics from only one or a limited number of models unless validated specifically for hydrological drought. |
282769 |
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| publications-792 |
PEER REVIEWED ARTICLE |
2012 |
Machlica, A., HorvĂĄt, O., Horacek, S., Oosterwijk, J., Van Loon, A.F., FendekovĂĄ, M. & Van Lanen, H.A.J. |
Influence of model structure on base flow estimation using BILAN FRIER and HBV-light models |
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10.2478/v10098-012-0021-4 |
Data Management & Analytics |
Precipitation & Ecological Systems |
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Hydrological models are widely used tools to solve a broad range of hydrological issues. Each model has its own structure defining inter-relationships of hydrological balance components, and comparative differences in the modelsâ inner structure must be taken into account when discrepancies result from the same data. Results of base flow simulation by three different models BILAN, FRIER and HBV-light were compared based on knowledge of the modelsâ internal structure. It was proven that the courses of modelled parameters are quite similar, but that the respective values differ. The highest base flow values were simulated by the BILAN model, due to the threshold value of the soil moisture storage incorporated within this modelâs structure. The lowest values were obtained by HBV-light model. Simulated base flow values were compared with groundwater heads and minimum monthly discharges. This comparison showed that the base flow values in the Nitra catchment at NedoĹžery profile simulated by BILAN and FRIER models are closer to the reality than those, simulated by HBV-light model. |
282769 |
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| publications-793 |
CONFERENCE PROCEEDING |
2014 |
I. Ribarova, P. Stanchev, G. Dimova, D. Assimacopoulos |
A first iteration of an eco-efficiency assessment of Sofia?s urban water system |
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10.1016/j.proeng.2014.02.156 |
Uncategorized |
River Basins |
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No abstract available |
282882 |
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| publications-794 |
PEER REVIEWED ARTICLE |
2014 |
Les Levidow , Daniele Zaccaria , Rodrigo Maia , Eduardo Vivas , Mladen Todorovic , Alessandra Scardigno |
Improving water-efficient irrigation: Prospects and difficulties of innovative practices |
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10.1016/j.agwat.2014.07.012 |
Uncategorized |
Wastewater Treatment Plants |
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No abstract available |
282882 |
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| publications-795 |
PEER REVIEWED ARTICLE |
2016 |
Les Levidow, Palle Lindgaard-Jørgensen, Ă
sa Nilsson, Sara Alongi Skenhall, Dionysis Assimacopoulos |
Process eco-innovation: Assessing meso-level eco-efficiency in industrial water-service systems |
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10.1016/j.jclepro.2014.12.086 |
Uncategorized |
River Basins |
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No abstract available |
282882 |
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| publications-796 |
PEER REVIEWED ARTICLE |
2014 |
Les Levidow, Palle Lindgaard-Jørgensen, Ă
sa Nilsson, Sara Alongi Skenhall, Dionysis Assimacopoulos |
Eco-efficiency improvements in industrial water-service systems: assessing options with stakeholders |
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10.2166/wst.2014.131 |
Data Management & Analytics |
Natural Water Bodies |
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The well-known eco-efficiency concept helps to assess the economic value and resource burdens of potential improvements by comparison with the baseline situation. But eco-efficiency assessments have generally focused on a specific site, while neglecting wider effects, for example, through interactions between water users and wastewater treatment (WWT) providers. To address the methodological gap, the EcoWater project has developed a method and online tools for meso-level analysis of the entire water-service value chain. This study investigated improvement options in two large manufacturing companies which have significant potential for eco-efficiency gains. They have been considering investment in extra processes which can lower resource burdens from inputs and wastewater, as well as internalising WWT processes. In developing its methodology, the EcoWater project obtained the necessary information from many agents, involved them in the meso-level assessment and facilitated their discussion on alternative options. Prior discussions with stakeholders stimulated their attendance at a workshop to discuss a comparative eco-efficiency assessment for whole-system improvement. Stakeholders expressed interest in jointly extending the EcoWater method to more options and in discussing investment strategies. In such ways, optimal solutions will depend on stakeholders overcoming fragmentation by sharing responsibility and knowledge. |
282882 |
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| publications-797 |
PEER REVIEWED ARTICLE |
2016 |
P.-Î. Stathatou , E. Kampragou , H. Grigoropoulou , D. Assimacopoulos , C. Karavitis , M.F.A. Porto , J. GironĂĄs , M. Vanegas , S. Reyna |
Vulnerability of water systems: a comprehensive framework for its assessment and identification of adaptation strategies |
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10.1080/19443994.2015.1012341 |
Predictive Analytics |
River Basins |
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No abstract available |
283025 |
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| publications-798 |
PEER REVIEWED ARTICLE |
2015 |
Carla Ximena Salinas , Jorge GironĂĄs , Miriam Pinto |
Water security as a challenge for the sustainability of La Serena-Coquimbo conurbation in northern Chile: global perspectives and adaptation |
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10.1007/s11027-015-9650-3 |
Simulation & Modeling |
Water Distribution Networks |
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No abstract available |
283025 |
|
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| publications-799 |
|
2015 |
Christian Hunter , Jorge GironĂĄs , Diogo Bolster , Christos Karavitis |
A Dynamic, Multivariate Sustainability Measure for Robust Analysis of Water Management under Climate and Demand Uncertainty in an Arid Environment |
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10.3390/w7115928 |
Simulation & Modeling |
Wastewater Treatment Plants |
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Considering water resource scarcity and uncertainty in climate and demand futures, decision-makers require techniques for sustainability analysis in resource management. Through unclear definitions of âsustainabilityâ, however, traditional indices for resource evaluation propose options of limited flexibility by adopting static climate and demand scenarios, limiting analysis variables to a particular water-use group and time. This work proposes a robust, multivariate, dynamic sustainability evaluation technique and corresponding performance indicator called Measure of Sustainability (MoS) for resource management that is more adapted to withstand future parameter variation. The range of potential future climate and demand scenarios is simulated through a calibrated hydrological model of CopiapĂł, Chile, a case study example of an arid watershed under extreme natural and anthropogenic water stresses. Comparing MoS and cost rankings of proposed water management schemes, this paper determines that the traditional evaluation method not only underestimates future water deficits, but also espouses solutions without considering uncertainties in supply and demand. Given the uncertainty of the future and the dependence of resources upon climate and market trajectories, the MoS methodology proposes solutions that, while perhaps are not the most optimal, are robust to variations in future parameter values and are thus the best water management options in a stochastic natural world. |
283025 |
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| publications-800 |
PEER REVIEWED ARTICLE |
2015 |
Francisco J. Meza , Sebastian Vicuna , Jorge GironĂĄs , David Poblete , Francisco SuĂĄrez , Melanie Oertel |
Waterâfoodâenergy nexus in Chile: the challenges due to global change in different regional contexts |
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10.1080/02508060.2015.1087797 |
IoT & Sensors |
Uncategorized |
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No abstract available |
283025 |
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