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Discrete Wavelet Transform Coupled with Ann for Daily Discharge Fo...

By: P. K. M. M. Freire; R. M. Silva; G. B. L. Silva; C. A. G. Santos

Description: Department of Civil and Environmental Engineering, Federal University of Paraíba, 58051-900 João Pessoa – PB, Brazil. This paper proposes the use of discrete wavelet transform (DWT) to remove the high-frequency components (details) of an original signal, because the noises generally present in time series (e.g. streamflow records) may influence the prediction quality. Cleaner signals could then be used as inputs to an artificial neural network (ANN) in order...

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Simulating Hydrological Responses with a Physically Based Model in...

By: R. Ouyang; X. Chen; Q. Xu; J. Bi; L. Ren

Description: The State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing, Jiangsu, P. R. China. A physical and distributed approach was proposed by Reggiani et al. (1998) to describe the hydrological responses at the catchment scale. The rigorous balance equations for mass, momentum, energy and entropy are applied on the divided spatial domains which are called Representative Elementary Watershed (REW). Based on the 2nd law of thermodynam...

Abbott, M. B., Bathurst, J. C., Cunge, J. A., O'Connell, P. E., and Rasmussen, J.: Introduction to the European hydrological system – Systeme Hydrologique Europeen, SHE, 2: Structure of a physically-based, distributed modelling system, J. Hydrol., 87, 61–77, 1986.; Freeze, R. A. and Harlan, R. L.: Blueprint for a physically-based digitally-simulated hydrologic response model, J. Hydrol., 9, 237–258, 1969.; Lee, H., Sivapalan, M., and Zehe, E.: Representative Elementary W...

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Drought Assessment and Trends Analysis from 20Th Century to 21St C...

By: S. H. Jiang; R. Tong; F. Yuan; X. L. Yang; X. R. Cheng; L. L. Ren; Y. Liu

Description: State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, China. Droughts are becoming the most expensive natural disasters in China and have exerted serious impacts on local economic development and ecological environment. The fifth phase of the Coupled Model Intercomparison Project (CMIP5) provides a unique opportunity to assess scientific understanding of climate variability and change over a range of hist...

IPCC: Climate Change 2007: Synthesis Report, in: Contribution of Working Groups I, II and III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Core Writing Team, Pachauri, R. K., and Reisinger, A., IPCC, Geneva, Switzerland, 104 pp., 2007.; Li, H. B., Sheffield, J., and Wood, E. F.: Bias correction of monthly precipitation and temperature fields from Intergovernmental Panel on Climate Change AR4 models using equidistant quantil...

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Comparative Assessment of Extreme Climate Variability and Human Ac...

By: X. Yang; F. Yuan; L. Ren; H. Shen

Description: State Key Laboratory of Hydrology–Water Resources and Hydraulic Engineering, Hohai University, Nanjing, China. Drought is a comprehensive phenomenon not only resulting from precipitation deficits and climatic factors, but also being related to terrestrial hydrologic conditions and human activities. This paper investigated the relationships among regional hydrologic drought, climate extremes and human activities in the Weihe River basin, northwest China, ...

Alexander, L. V., Zhang, X., Peterson, T. C., Caesar, J., Gleason, B., Klein Tank, A. M. G., and Vazquez-Aguirre, J. L.: Global observed changes in daily climate extremes of temperature and precipitation, J. Geophys. Res.-Atmos., 111, D05109, doi:10.1029/2005JD006290, 2006.; Grinsted, A., Moore, J. C., and Jevrejeva, S.: Application of the cross wavelet transform and wavelet coherence to geophysical time series, Nonlin. ...

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Responding to the Challenges of Water Security: the Eighth Phase o...

By: B. Jimenez-cisneros

Description: Secretary, International Hydrological Programme and Director of the Division of Water Sciences, UNESCO, Paris, France. This paper presents the major water challenges at global, regional and local levels, including the need to adapt to climate change. It relates how the International Hydrological Programme (IHP) – an intergovernmental scientific programme – will respond in its Eighth Phase to the water-related risks and seize potential opportunities, thereby ...

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Streamflow Predictions in Regulated River Systems: Hydrological No...

By: S. Kim; J. Hughes; J. Vaze; D. Dutta

Description: Land and Water Flagship, CSIRO, Canberra, Australia. Streamflow in a regulated river system is highly influenced by storage regulations and anthropogenic water use in addition to climate variability. Thus, changes in climate-streamflow relationships and dominant hydrological processes over time are difficult to quantify in a regulated system without partitioning influence of storage regulation and anthropogenic water uses. This requires a robust regulat...

ABS: Year Book Australia: Australian Bureau of Statistics, 2008, available at: http://www.abs.gov.au/ausstats/abs@.nsf/0/D53408834D6C846FCA2573D2001066F3?opendocument (last access: 15 March 2015), 2008.; ABS: Inland Waters: Water Storage, Australian Bureau of Statistics, available at:

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Scenario Forecasting Changes in the Water Balance Components of th...

By: E. E. Kovalev; L. Ya. Dzhogan; O. N. Nasonova; Ye. M. Gusev

Description: Institute of Water Problems, Russian Academy of Sciences, Moscow, Russia. Scenario projections of the dynamics of meteorological characteristics for the basins of the Olenek and Indigirka rivers (the Republic of Sakha) in the XXI century have been obtained for four IPCC global climate change scenarios of SRES family which correspond to specified scenarios of economic, technological, political, and demographic development of human civilization. The proje...

Duan, Q., Sorooshian, S., and Gupta, V. K.: Effective and efficient global optimization for conceptual rainfall runoff models, Water Resour. Res., 28, 1015–1031, 1992.; Gusev, E. M. and Nasonova, O. N.: Modelling heat- and water exchange between land surface and atmosphere. Nauka, Moscow, Russia, 328, 1–328, 2010 (in Russian).; Gusev, E. M. and Nasonova, O. N.: A Technique for Scenario Prediction of Changes in Water Balance Components in Northern River Basins in the Cont...

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Integration of Uncertainties in Water and Flood Risk Management : ...

By: B. Höllermann; M. Evers

Description: Department of Geography, University of Bonn, Bonn, Germany. Water management is challenged by hydrological and socio-economic change and hence often forced to make costly and enduring decisions under uncertainty. Thus, thinking beyond current acknowledged and known limits is important to consider these changes and the dynamic of socio-hydrological interactions. For example, reservoir management aiming at flood reduction and mitigation has to cope with m...

Abbott, J.: Understanding and managing the unknown: The nature of uncertainty in planning, J. Plan. Educ. Res., 24, 237–251, 2005.; Aven, T.: Misconceptions of risk, Wiley, Chichester, UK, 252 pp., 2010.; Bakker, K.: Water Security: Research Challenges and Opportunities, Science, 337, 914–915, 2012.; Blöschl, G. and Montanari, A.: Climate change impacts-throwing the dice?, Hydrol. Process., 24, 374–381, 2010.; Brugnach, M., Tagg, A., Keil, F., and de Lange, W. J.: Uncert...

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Revisiting Historical Climatic Signals to Better Explore the Futur...

By: C. Velluet; B. Cappelaere; M. Grippa; J. Demarty; C. Leauthaud; S. Chelbi; L. Kergoat; F. Guichard; B. Sultan; E. Mougin

Description: CNRS, HydroSciences Montpellier, Montpellier, France. Rainfall and climatic conditions are the main drivers of natural and cultivated vegetation productivity in the semiarid region of Central Sahel. In a context of decreasing cultivable area per capita, understanding and predicting changes in the water cycle are crucial. Yet, it remains challenging to project future climatic conditions in West Africa since there is no consensus on the sign of future pre...

Biasutti, M.: Forced Sahel rainfall trends in the CMIP5 archive, J. Geophys. Res. Atmos., 118, 1613–1623, 2013.; Boone, A., Getirana, A. C., Demarty, J., Cappelaere, B., Galle, S., Grippa, M., and Vischel, T.: The African Monsoon Multidisciplinary Analyses (AMMA) Land surface Model Intercomparison Project Phase 2 (ALMIP2), Gewex News, 19, 9–10, 2009.; Braud, I., Dantas-Antonino, A. C., Vauclin, M., Thony, J.-L., and Ruelle, P.: A simple soil-plant-atmosphere transfer mod...

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Tracking the Origin and Dispersion of Contaminated Sediments Trans...

By: C. Chartin; O. Evrard; Y. Onda; H. Lepage; P. Bonte; I. Lefevre; A. Sophie

Description: Laboratoire des Sciences du Climat et de l’Environnement (CEA, CNRS,UVSQ), 91198 Gif-sur-Yvette France. This study was conducted in several catchments draining the main Fukushima Dai-ichi Power Plant contaminant plume in Fukushima prefecture, Japan. We collected soils and sediment drape deposits (n = 128) and investigated the variation in 137Cs enrichment during five sampling campaigns, conducted every six months, which typically occurred after in...

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Impact of Climate Change on Evaluation of Future Water Demand in t...

By: Y. Zhu; H. Lü; A. A. Alazzy

Description: State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China. Syria is one of the Middle Eastern countries that suffer from scarcity in water resources availability, which affects the growth and development of economic activities. In this research, the Water Evaluation and Planning (WEAP) model is applied to evaluate future water demand in the Euphrates and Alep...

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A Coupled Modelling Effort to Study the Fate of Contaminated Sedim...

By: P. Diplas; E. R. Zavaleta; C. F. Castro-bolinaga

Description: Baker Environmental Hydraulics Laboratory, Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA. This paper presents the preliminary results of a coupled modelling effort to study the fate of tailings (radioactive waste-by product) downstream of the Coles Hill uranium deposit located in Virginia, USA. The implementation of the overall modelling process includes a one-dimensional hydraulic model to qualitatively ch...

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Risk Management Frameworks: Supporting the Next Generation of Murr...

By: D. C. Black; L. Peeters; S. M. Cuddy; T. Smith; G. M. Podger; P. Wallbrink; R. H. Bark

Description: CSIRO Water for a Healthy Country Flagship, Canberra, Australia. Water jurisdictions in Australia are required to prepare and implement water resource plans. In developing these plans the common goal is realising the best possible use of the water resources – maximising outcomes while minimising negative impacts. This requires managing the risks associated with assessing and balancing cultural, industrial, agricultural, social and environmental demands for w...

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Impact of Precipitation and Runoff on Ephemeral Gully Development ...

By: A. Sheshukov; P. Barnes; V. Karimov

Description: Department of Biological and Agricultural Engineering, Kansas State University, 129 Seaton Hall, Manhattan, Kansas 66506, USA. The goal of this study was to estimate the impacts of precipitation and runoff on ephemeral gully development. A field experiment was conducted during the summer of 2013 on an agricultural field near the city of McPherson in central Kansas, USA. Precipitation data were collected, and the gully headcut was measured every three to four...

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Process Oriented Thinking as a Key for Integration of Ecohydrology...

By: M. Zalewski

Description: European Regional Centre for Ecohydrology under the auspices of UNESCO, International Institute of Polish Academy of Sciences, 3 Tylna Str., 90-364 Lodz, Poland. The recent high rate of environmental degradation due to unsustainable use of water and other natural resources and mismanagement, is, in many cases, the result of a dominant sectoral approach, limited communication between different users and agencies, and lack of knowledge transfer between differe...

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Evaluation of the Effects of Underlying Surface Change on Catchmen...

By: Z. Li; J. Ding; L. Chang; C. Yao; D. an; Y. Zhang

Description: College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China. Due to rapid population growth, China, and urbanization, the Dongwan catchment, with a drainage area of 2856 km2 and located in Henan Province, has been subjected to considerable land-use changes since the 1990s. Distributed or semi-distributed models have been widely used in catchment hydrological modeling, along with the rapid development of computer and GIS techn...

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Water and Energy Nexus: Findings of the World Water Development Re...

By: M. Miletto

Description: World Water Assessment Programme, Programme Office for Global Water Assessment, Division of Water Science, UNESCO, Villa La Colombella, I-06134 Colombella, Perugia, Italy. The post-2015 Sustainable Development Goals (SDG) are likely to include increased access to water and energy services. The fifth edition of the United Nations World Water Development Report (WWDR) Water and Energy aims to contribute to the this international process by inform...

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Improving Evaluation of Climate Change Impacts on the Water Cycle ...

By: J. Diego Giraldo Osorio; J. Ángel Martínez Pérez; P. Olmos Giménez; S. G. García Galiano

Description: Department of Civil Engineering, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 52, 30203, Cartagena, Spain. Population growth and intense consumptive water uses are generating pressures on water resources in the southeast of Spain. Improving the knowledge of the climate change impacts on water cycle processes at the basin scale is a step to building adaptive capacity. In this work, regional climate model (RCM) ensembles are considered as an input...

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Coupling Hydrology, Geochemistry and Hydrodynamics Towards Rationa...

By: H. Celle-jeanton; A. Dupuy; F. Huneau; P. Le Coustumer; J. Jaunat

Description: Université de Corse Pascal Paoli, Laboratoire d’Hydrogéologie, Corte, France. The metamorphic massif of Ursuya (French Basque Country) is a strategic aquifer for the water supply of southwestern France. A multidisciplinary approach, conducted between 2009 and 2013, has led to understanding of the behaviour of this system made of discontinuous media. Isotopic and geochemical characteristics of rainwater were studied together with groundwater geochemistry, to ...

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Design of a Semi-autonomous Boat for Measurements of Coastal Sedim...

By: L. Cross; S. Hall; J. Rivet; D. Smith

Description: Department of Biological and Agricultural Engineering, Louisiana State University Agricultural Center, Baton Rouge, Louisiana 70803, USA. Measurement of sediment deposition and erosion in coastal areas is a challenge due to soft shifting sediments, but is critical to assessing loss or restoration of coastal sediments and wetlands. The aim of this project was to design and construct a semi-autonomous boat with water depth measuring capabilities. It was intend...

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