| publications-761 |
PEER REVIEWED ARTICLE |
2015 |
Néstor Lerma , Javier Paredes-Arquiola , JoaquÃn Andreu , Abel Solera , Giovanni M. Sechi |
Assessment of evolutionary algorithms for optimal operating rules design in real Water Resource Systems |
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10.1016/j.envsoft.2014.09.024 |
Simulation & Modeling |
River Basins |
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No abstract available |
282769 |
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| publications-762 |
PEER REVIEWED ARTICLE |
2013 |
Néstor Lerma , Javier Paredes-Arquiola , Jose-Luis Molina , JoaquÃn Andreu |
Evolutionary network flow models for obtaining operation rules in multi-reservoir water systems |
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10.2166/hydro.2013.151 |
Hydrological modeling |
Groundwater |
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Obtaining operation rules (OR) for multi-reservoir water systems through optimization and simulation processes has been an intensely studied topic. However, an innovative approach for the integration of two approaches – network flow simulation models and evolutionary multi-objective optimization (EMO) – is proposed for obtaining the operation rules for integrated water resource management (IWRM). This paper demonstrates a methodology based on the coupling of an EMO algorithm (NSGA-II or Non-dominated Sorting Genetic Algorithm) with an existing water resources allocation simulation network flow model (SIMGES). The implementation is made for a real case study, the Mijares River basin (Spain) which is characterized by severe drought events, a very traditional water rights system and its historical implementation of the conjunctive use of surface and ground water. The established operation rules aim to minimize the maximum deficit in the short term without compromising the maximum deficits in the long term. This research proves the utility of the proposed methodology by coupling NSGA-II and SIMGES to find the optimal reservoir operation rules in multi-reservoir water systems. |
282769 |
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| publications-763 |
PEER REVIEWED ARTICLE |
2014 |
Andrea Momblanch , JoaquÃn Andreu , Javier Paredes-Arquiola , Abel Solera , MarÃa Pedro-MonzonÃs |
Adapting water accounting for integrated water resource management. The Júcar Water Resource System (Spain) |
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10.1016/j.jhydrol.2014.10.002 |
Uncategorized |
Water Distribution Networks |
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No abstract available |
282769 |
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| publications-764 |
PEER REVIEWED ARTICLE |
2015 |
Andrea Momblanch , Javier Paredes-Arquiola , Antoni Munné , Andreu Manzano , Javier Arnau , JoaquÃn Andreu |
Managing water quality under drought conditions in the Llobregat River Basin |
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10.1016/j.scitotenv.2014.06.069 |
Uncategorized |
Irrigation Systems |
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No abstract available |
282769 |
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| publications-765 |
PEER REVIEWED ARTICLE |
2012 |
Philippe Quevauviller , Damia Barceló , Martin Beniston , Slobodan Djordjevic , Richard J. Harding , Ana Iglesias , Ralf Ludwig , Antonio Navarra , A |
Integration of research advances in modelling and monitoring in support of WFD river basin management planning in the context of climate change |
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10.1016/j.scitotenv.2012.07.055 |
Uncategorized |
Wastewater Treatment Plants |
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No abstract available |
282769 |
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| publications-766 |
PEER REVIEWED ARTICLE |
2013 |
B. Orlowsky , S. I. Seneviratne |
Elusive drought: uncertainty in observed trends and short- and long-term CMIP5 projections |
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10.5194/hess-17-1765-2013 |
Uncategorized |
Wastewater Treatment Plants |
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Abstract. Recent years have seen a number of severe droughts in different regions around the world, causing agricultural and economic losses, famines and migration. Despite their devastating consequences, the Standardised Precipitation Index (SPI) of these events lies within the general range of observation-based SPI time series and simulations from the 5th phase of the Coupled Model Intercomparison Project (CMIP5). In terms of magnitude, regional trends of SPI over the last decades remain mostly inconclusive in observation-based datasets and CMIP5 simulations, but Soil Moisture Anomalies (SMAs) in CMIP5 simulations hint at increased drought in a few regions (e.g., the Mediterranean, Central America/Mexico, the Amazon, North-East Brazil and South Africa). Also for the future, projections of changes in the magnitude of meteorological (SPI) and soil moisture (SMA) drought in CMIP5 display large spreads over all time frames, generally impeding trend detection. However, projections of changes in the frequencies of future drought events display more robust signal-to-noise ratios, with detectable trends towards more frequent drought before the end of the 21st century in the Mediterranean, South Africa and Central America/Mexico. Other present-day hot spots are projected to become less drought-prone, or display non-significant changes in drought occurrence. A separation of different sources of uncertainty in projections of meteorological and soil moisture drought reveals that for the near term, internal climate variability is the dominant source, while the formulation of Global Climate Models (GCMs) generally becomes the dominant source of spread by the end of the 21st century, especially for soil moisture drought. In comparison, the uncertainty from Green-House Gas (GHG) concentrations scenarios is negligible for most regions. These findings stand in contrast to respective analyses for a heat wave index, for which GHG concentrations scenarios constitute the main source of uncertainty. Our results highlight the inherent difficulty of drought quantification and the considerable likelihood range of drought projections, but also indicate regions where drought is consistently found to increase. In other regions, wide likelihood range should not be equated with low drought risk, since potential scenarios include large drought increases in key agricultural and ecosystem regions. |
282769 |
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| publications-767 |
PEER REVIEWED ARTICLE |
2014 |
B Orlowsky , A Y Hoekstra , L Gudmundsson , Sonia I Seneviratne |
Todayʼs virtual water consumption and trade under future water scarcity |
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10.1088/1748-9326/9/7/074007 |
Uncategorized |
Uncategorized |
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No abstract available |
282769 |
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| publications-768 |
PEER REVIEWED ARTICLE |
2013 |
Rene Orth , Randal D. Koster , Sonia I. Seneviratne |
Inferring Soil Moisture Memory from Streamflow Observations Using a Simple Water Balance Model |
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10.1175/jhm-d-12-099.1 |
Uncategorized |
Uncategorized |
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Abstract Soil moisture is known for its integrative behavior and resulting memory characteristics. Soil moisture anomalies can persist for weeks or even months into the future, making initial soil moisture a potentially important contributor to skill in weather forecasting. A major difficulty when investigating soil moisture and its memory using observations is the sparse availability of long-term measurements and their limited spatial representativeness. In contrast, there is an abundance of long-term streamflow measurements for catchments of various sizes across the world. The authors investigate in this study whether such streamflow measurements can be used to infer and characterize soil moisture memory in respective catchments. Their approach uses a simple water balance model in which evapotranspiration and runoff ratios are expressed as simple functions of soil moisture; optimized functions for the model are determined using streamflow observations, and the optimized model in turn provides information on soil moisture memory on the catchment scale. The validity of the approach is demonstrated with data from three heavily monitored catchments. The approach is then applied to streamflow data in several small catchments across Switzerland to obtain a spatially distributed description of soil moisture memory and to show how memory varies, for example, with altitude and topography. |
282769 |
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| publications-769 |
PEER REVIEWED ARTICLE |
2014 |
René Orth , Sonia I. Seneviratne |
Using soil moisture forecasts for sub-seasonal summer temperature predictions in Europe |
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10.1007/s00382-014-2112-x |
Simulation & Modeling |
River Basins |
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No abstract available |
282769 |
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| publications-770 |
PEER REVIEWED ARTICLE |
2015 |
Rene Orth , Sonia I Seneviratne |
Introduction of a simple-model-based land surface dataset for Europe |
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10.1088/1748-9326/10/4/044012 |
Uncategorized |
Uncategorized |
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No abstract available |
282769 |
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