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A Look at the Links Between Drainage Density and Flood Statistics ...

By: B. Pallard; A. Montanari; A. Castellarin

Description: International Center for Agricultural Science and Natural resource Management Studies, Montpellier Supagro, Montpellier, France. We investigate the links between the drainage density of a river basin and selected flood statistics, namely, mean, standard deviation, coefficient of variation and coefficient of skewness of annual maximum series of peak flows. The investigation is carried out through a three-stage analysis. First, a numerical simulation is pe...

Castellarin, A., Vogel, R. M., and Matalas, N. C.: Probabilistic behavior of a regional envelope curve, Water Resour. Res., 41, W06018, doi:10.1029/2004WR003042, 2005.; Autorità di bacino del Fiume Po: Caratteristiche del bacino del Fiume Po e primo esame dell'impatto ambientale delle attività umane sulle risorse idriche, Tech. Rep., 12–39, 2006 (in Italian).; Band, L. E.: Topographic partition of watersheds with digital elevation models, Water Resour. Res., 22, 15–24, 1...

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Spatial Moments of Catchment Rainfall: Rainfall Spatial Organisati...

By: A. Viglione; G. B. Chirico; G. Blöschl; D. Zoccatelli; M. Borga

Description: Department of Land and Agroforest Environment, University of Padova, Italy. This paper provides a general analytical framework for assessing the dependence existing between spatial rainfall organisation, basin morphology and runoff response. The analytical framework builds upon a set of spatial rainfall statistics (termed spatial moments of catchment rainfall) which describe the spatial rainfall organisation in terms of concentration and dispersio...

Andréassian V., Perrin, C., Michel, C., Usart-Sanchez, I., and Lavabre, J.: Impact of imperfect rainfall knowledge on the efficiency and the parameters of watershed models, J. Hydrol., 250, 206–223, 2001.; Barry, D., Parlange, J.-Y., Li, L., Jeng, D.-S., and Crapper, M.: Green-Ampt approximations, Adv. Water. Res., $28$, 1003–1009, doi:10.1016/j.advwatres.2005.03.010, 2005.; Bell, V. A. and Moore, R. J.: The s...

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Multi-criteria Validation of Artificial Neural Network Rainfall-ru...

By: R. Modarres

Description: Faculty of Natural Resources, Isfahan University of Technology, Isfahan, Iran. In this study we propose a comprehensive multi-criteria validation test for rainfall-runoff modeling by artificial neural networks. This study applies 17 global statistics and 3 additional non-parametric tests to evaluate the ANNs. The weakness of global statistics for validation of ANN is demonstrated by rainfall-runoff modeling of the Plasjan Basin in the western region of ...

Conover, W. J.: Practical Nonparametric Statistics, 3rd, Wiley, NY, USA, 592 pp., 1999; Blom, G.: Statistical estimates and transformed beta variables, John Wiley and Sons, NY, USA, 174 pp., 1958.; Aksoy, H. and Dahamsheh, A.: Artificial neural network models for forecasting monthly precipitation in Jordan, Stoch. Environ. Res. Risk Assess., doi:10.1007/s00477-008-0267-x (in press and online available), 2009.; Antar, M. A., Elassiouti, I., and Allam, M. N.: Rainfall-runo...

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Can Ph and Electrical Conductivity Monitoring Reveal Spatial and T...

By: P. J. Gerla

Description: The Nature Conservancy – Minnesota, North Dakota, and South Dakota Chapter, 81 Cornell Street Stop 8358, Grand Forks, North Dakota 58202-8358, USA. Carbonate reactions and equilibria play a dominant role in the biogeochemical function of many wetlands. The US Geological Survey PHREEQC computer code was used to model geochemical reactions that may be typical for wetlands with water budgets characterized by: (a) input dominated by direct precipitation,...

Dillon, P. and Merritt, N.: Hydrochemical modeling of water quality in a ground and surface water system within a semi-urban watershed, in: Proceedings of the 2005 Watershed Management Conference – Managing Watersheds for Human and Natural Impacts: Engineering, Ecological, and Economic Challenges, Williamsburg, Virginia, USA, p. 1865, 2005.; Drexler, J. Z., Bedford, B. L., DeGaetano, A. T., and Siegel, D. I.: Quantification of the water budget and nutrient loading in a s...

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Ephemeral Stream Sensor Design Using State Loggers : Volume 15, Is...

By: J. B. Lindsay; R. Bhamjee

Description: University of Guelph, Canada. Ephemeral streamflow events have the potential to transport sediment and pollutants downstream, which, in predominently agricultural basins, is especially problematic. Despite the importance of ephemeral streamflow, the duration and timing of the events are characteristics that are rarely measured. Ephemeral streamflow sensors have been created in the past with varying degrees of success and this paper presents a solution w...

Adams, E. A., Monroe, S. A., Springer, A. E., Blasch, K. W., and Bills, D. J.: Electrical resistance sensors record spring flow timing, grand canyon, arizona, Ground Water, 44(5), 630–641, 2006.; Arnell, N.: Hydrology and global environmental change, Pearson Education, 20002.; Bardossy, A. and Lehmann, W.: Spatial distribution of soil moisture in a small catchment. part 1: geostatistical analysis, J. Hydrol., 206(1–2), 1–15, 1998.; Bishop, K., Buffam, I., Erlandsson, M.,...

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Experiences of Using Mobile Technologies and Virtual Field Tours i...

By: W. J. Eastwood; P. I. Jones; D. M. Hannah; R. Johnson; S. Marshall; D. G. Kingston

Description: School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK. Education in hydrology is changing rapidly due to diversification of students, emergent major scientific and practical challenges that our discipline must engage with, shifting pedagogic ideas and higher education environments, the need for students to develop new discipline specific and transferrable skills, and the advent of innovative t...

Boyle, B., Conchie, S., Maguire, S., Martin, A., Milsom, C., Nash, R., Rawlinson, S., Turner, A., and Wurthmann, S.: Fieldwork is Good? The student experience of field courses, Planet, 5, 48–51, 2003.; Fletcher, S., France, D., Moore, K., and Robinson, G.: Practitioner perspectives on the use of technology in fieldwork teaching, J. Geogr. Higher Educ., 31, 319–330, 2007.; Fuller, I., Rawlinson, S., and Bevan, R.: Evaluation of Student Learning Experiences in Physical Geo...

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An Analytical Solution for Tidal Dynamics in the Yangtze Estuary, ...

By: S. L. Chen; X. H. Mao; H. H. G. Savenije; E. F. Zhang

Description: State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China. An analytical model for tidal dynamics has been applied to the Yangtze Estuary, a large branched estuary with three-order branches and four outlets to the sea. This study shows that the analytical model developed for a single-channel estuary can also accurately describe the tidal dynamics in a branched estuary, particularly in the downstream part. For...

Chen, J. and Chen, S.: Variation in ecology and environment in the Yangtze Estuary and suggestion on hanessing the estuary, Water Resour. Hydropower Eng., 34, 19–25, 2003.; Dronkers, J. J.: Tidal Computations in Rivers and Coastal Waters, North Holland Publishing Company, Amsterdam, 518 pp., 1964.; Dyer, K. R.: Estuaries: a physical introduction, John Wiley & Sons, Aberdeen, London, 140 pp., 1973.; Friedrichs, C. T. and Aubrey, D. G.: Tidal propagation in strongly conver...

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Future Changes in Extreme Precipitation in the Rhine Basin Based o...

By: J. J. Beersma; B. J. J. M. Van Den Hurk; T. A. Buishand; P. Kabat; S. C. Van Pelt

Description: Earth System Science and Climate Change Group, WageningenUR, Droevendaalsesteeg 3, 6708 PB Wageningen, The Netherlands. Probability estimates of the future change of extreme precipitation events are usually based on a limited number of available Global Climate Model (GCM) or Regional Climate Model (RCM) simulations. Since floods are related to heavy precipitation events, this restricts the assessment of flood risks. In this study a relatively simple meth...

Arnell, N. W. and Reynard, N. S.: The effects of climate change due to global warming on river flows in Great Britain, J. Hydrol., 183, 397–424, 1996.; Beguería, S.: Uncertainties in partial duration series modelling of extremes related to the choice of the threshold value, J. Hydrol., 303, 215–230, 2005.; Beersma, J. J.: Rainfall generator for the Rhine basin: Description of 1000-year simulations, Royal Netherlands Meteorological Institute (KNMI), De Bilt, Publication 1...

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Evaluation of Persiann Database in the Framework of Smos Calibrati...

By: E. Lopez-baeza; Y. Kerr; A. Mialon; K. Hsu; S. Juglea; D. Braithwaite

Description: Centre d'Études Spatiales de la BIOsphère, UMR 5126 (CNRS, CNES, IRD, UPS), Toulouse, France. Soil moisture is a key parameter for land surface water resource and climate change monitoring. ESA's Soil Moisture and Ocean Salinity (SMOS) mission will deliver, as one of its main goals, global fields of surface soil moisture with an accuracy better than 0.04 m3 m−3. SMOS relies on an L-band (1.4 GHz) interferometric radiometer. Within t...

Boone, A.: Modelisation des processus hydrologiques dans le schema de surface ISBA: Inclusion d'un reservoir hydrologique, du gel et modelisation de la neige., PhD thesis, University Paul Sabatier, Toulouse, France, 252 pp., 2000.; Boone, A., Masson, V., Meyers, T., and Noilhan, J.: The influence of the inclusion of soil freezing on simulations by a soil-vegetation-atmosphere transfer scheme., J. Appl. Meteor., 39, 1544–1569, 2000.; Brown, J. E. M.: An analysis of the pe...

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Estimating Evapotranspiration with Thermal Uav Data and Two Source...

By: H. Nieto; T. Friborg; R. Guzinski; R. Jensen; H. Hoffmann; P. J. Zarco-tejada

Description: Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, 1350 Copenhagen, Denmark. Estimating evapotranspiration is important when managing water resources and cultivating crops. Evapotranspiration can be estimated using land surface heat flux models and remotely sensed land surface temperatures (LST) which recently have become obtainable in very high resolution using Unmanned Aerial Vehicles (UAVs). Ver...

Anderson, M. C., Norman, J. M., Diak, G. R., Kustas, W. P., and Mecikalski, J. R.: A two-source time-integrated model for estimating surface fluxes using thermal infrared remote sensing, Remote Sens. Environ., 60, 195–216, doi:10.1016/S0034-4257(96)00215-5, 1997.; Anderson, M. C., Norman, J. M., Mecikalski, J. R., Torn, R. D., Kustas, W. P., and Basara, J. B.: A multiscale remote sensing model for disaggregating...

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Runoff Evolution According to Land Use Change in a Small Sahelian ...

By: K. Souley Yéro; I. Mamadou; J.-l. Rajot; S. Boubkraoui; I. Bouzou Moussa; J. M. Lapetite; A. Bachir; E. Le Breton; I. Zin; L. Descroix; N. Dessay; O. Amogu; M. Malam Abdou; M. Esteves

Description: IRD/UJF-Grenoble 1/CNRS/G-INP, LTHE UMR 5564, Grenoble, 38041, France. Significant land use changes have been observed in West Africa, particularly in the Sahel region where climatic and demographic factors have led to a rise in cultivated areas, in recent decades. These changes caused strong modifications in the water cycle and in river regimes.

By comparing the rainfall-runoff relationships for two periods (1991–1994 and 2004–2010) in two sm...

Ada, L. and Rockstrom, J. : Diagnostic sur le système agraire du Zarmaganda central (Niger), Mémoire de fin d'études INAPG, Paris, 82 p., 1993.; Albergel, J.: Genèse et prédétermination des crues au Burkina Faso; du m2 au km2, étude des paramètres hydrologiques et de leur évolution. PhD thesis, Université Paris 6, Editions de l'Orstom, 330 p., 1987.; Amani, A. and Nguetora, M.: Evidence d'une modification du régime hydrologique du fleuve Niger à Nia...

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An Ensemble Approach to Assess Hydrological Models' Contribution t...

By: M. J. Muerth; J. Schmid; S. Ricard; M. Minville; R. Turcotte; B. Gauvin St-denis; J. A. Velázquez; D. Chaumont; R. Ludwig; D. Caya

Description: Consortium Ouranos, Montréal, PQ, Canada. Over the recent years, several research efforts investigated the impact of climate change on water resources for different regions of the world. The projection of future river flows is affected by different sources of uncertainty in the hydro-climatic modelling chain. One of the aims of the QBic3 project (Québec-Bavarian International Collaboration on Climate Change) is to assess the contributi...

Beven, K.: Towards integrated environmental models of everywhere: uncertainty, data and modelling as a learning process, Hydrol. Earth Syst. Sci., 11, 460–467, doi:10.5194/hess-11-460-2007, 2007.; Bisson, J. L. and Roberge, F.: Prévisions des apports naturels: expérience d'Hydro-Québec, in: Proc., Workshop on Flow Predictions, Institute of Electrical and Electronics Engineers IEEE, Toronto, Canada, November 1983.; Bl...

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Hydraulic Analysis of River Training Cross-vanes as Part of Post-r...

By: T. A. Endreny; M. M. Soulman

Description: Department of Environmental Resources Engineering, SUNY ESF, Syracuse, New York 13210, 315-470-6565, USA. River restoration design methods are incrementally improved by studying and learning from monitoring data in previous projects. In this paper we report post-restoration monitoring data and simulation analysis for a Natural Channel Design (NCD) restoration project along 1600 m of the Batavia Kill (14 km2 watershed) in the Catskill Mountains...

Baldigo, B. P., Ernst, A. G., Warren, D. R., and Millar, S. J.: Variable Responses of Fish Assemblages, Habitat, and Stability to Natural-Channel-Design Restoration in Catskill Mountain Streams, T. Am. Fis. Soc., 139, 449–467, 2010.; Bernhardt, E. S. and Palmer, M. A.: Restoring streams in an urbanizing world, Freshwater Biol., 52, 738–751, doi:10.1111/j.1365-2427.2006.01718.x, 2007.; Bernhardt, E. S., Suddut...

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Sustainability of Uk Forestry: Contemporary Issues for the Protect...

By: T. R. Nisbet; S. J. Langan; J. Roberts; S. J. Ormerod; C. Neal

Description: Centre for Ecology and Hydrology, Crowmarsh Gifford, Wallingford, OXON, OX10 8BB, UK. This paper closes the Special Issue of Hydrology and Earth System Sciences entitled Sustainability of UK forestry: contemporary issues for the protection of freshwaters by presenting conclusions from the contributions together with associated research findings. The volume deals largely with issues of upland water quality and biology in the context of...

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Influence of Cracking Clays on Satellite Observed and Model Simula...

By: J. P. Evans; A. I. J. M. Van Dijk; H. Su; M. F. McCabe; Y. Y. Liu; R. A. M. De Jeu

Description: School of Civil and Environmental Engineering, University of New South Wales, Sydney, Australia. Vertisols are clay soils that are common in the monsoonal and dry warm regions of the world. A defining feature of these soils is the development of shrinking cracks during dry periods, the effects of which are not described in land surface models nor considered in the surface soil moisture estimation from passive microwave satellite observations. To investig...

Amidu, S. A. and Dunbar, J. A.: Geoelectric studies of seasonal wetting and drying of a texas vertisol, Vadose Zone J., 6, 511–523, doi:10.2136/vzj2007.0005, 2007.; Allen, P. M., Harmel, R. D., Arnold, J., Plant, B., Yelderman, J., and King K.: Field data and flow system response in clay (vertisol) shale terrain, north central Texas, USA, Hydrol. Process., 19, 2719–2736, 2005.; Austin, N. R. and Prendergast, J. B.: Use of kinematic wave theory to model irrigation on crac...

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Fog Interception by Ball Moss (Tillandsia Recurvata) : Volume 7, I...

By: M. Cervantes-jiménez; H. Suzán-azpiri; E. González-sosa; G. Malda-barrera; A. Guevara-escobar; L. Hernández-sandoval; M. Martínez-díaz

Description: Universidad Autónoma de Querétaro, Santiago de Querétaro, Querétaro 76010, México. Interception losses are a major influence in the water yield of vegetated areas. For most storms, interception results in less water reaching the ground. However, fog drip or occult precipitation can result in negative interception because small drops are deposited on all plant surfaces and subsequently fall to the ground once vegetation storage capacities are exceeded. F...

Andrade, J. L.: Dew deposition on epiphytic bromeliad leaves: an important event in a Mexican tropical dry deciduous forest, J. Trop. Ecol., 19, 479–488, 2003.; Barradas, V. L. and Glez-Medellin, M. G.: Dew and its effect on two heliophile understorey species of a tropical dry deciduous forest in Mexico, Int. J. Biometeorol., 43, 1–7, 1999.; Benzing, D. H.: Bromeliaceae: profile of an adaptive radiation, Press Syndicate of the University of Cambridge, Trumpington Street,...

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Building Long-term and High Spatio-temporal Resolution Precipitati...

By: B. Hingray; T. Mathevet; J. Gailhard; A. Kuentz

Description: Électricité de France, DTG, BP 41, 38040 Grenoble CEDEX 09, France. Efforts to improve the understanding of past climatic or hydrologic variability have received a great deal of attention in various fields of geosciences such as glaciology, dendrochronology, sedimentology and hydrology. Based on different proxies, each research community produces different kinds of climatic or hydrologic reanalyses at different spatio-temporal scales and resolutions. Wh...

Auer, I., Böhm, R., Jurkovic, A., Lipa, W., Orlik, A., Potzmann, R., Schöner, W., Ungersböck, M., Matulla, C., Briffa, K., Jones, P., Efthymiadis, D., Brunetti, M., Nanni, T., Maugeri, M., Mercalli, L., Mestre, O., Moisselin, J.-M., Begert, M., Müller-Westermeier, G., Kveton, V., Bochnicek, O., Stastny, P., Lapin, M., Szalai, S., Szentimrey, T., Cegnar, T., Dolinar, M., Gajic-Capka, M., Zaninovic, K., Majstorovic, Z., and Nieplova, E.: HISTALP historical instrumental cli...

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Radar Rainfall Image Repair Techniques : Volume 8, Issue 2 (30/11/...

By: Geoffrey G. S. Pegram; Stephen M. Wesson

Description: Civil Engineering, University of KwaZulu-Natal, Durban, 4041, South Africa. There are various quality problems associated with radar rainfall data viewed in images that include ground clutter, beam blocking and anomalous propagation, to name a few. To obtain the best rainfall estimate possible, techniques for removing ground clutter (non-meteorological echoes that influence radar data quality) on 2-D radar rainfall image data sets are present...

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A Modeling Study of Heterogeneity and Surface Water-groundwater In...

By: C. Rivard; C. Paniconi; M. J. Gauthier; M. Larocque; M. Camporese

Description: INRS-Eau, Terre et Environnement, Québec, QC, Canada. A modelling study of the impacts of subsurface heterogeneity on the hydrologic response of an 8 km2 catchment in the Annapolis Valley (Eastern Canada) is reported. The study is focused in particular on the hydraulic connection and interactions between surface water and groundwater. A coupled (1-D surface/3-D subsurface) numerical model is used to investigate, for a range of scenarios, the ...

Anderson, E. I.: Modeling groundwater-surface water interactions using the Dupuit approximation, Adv. Water Resour., 28, 315–327, 2005.; Agriculture and Agri-Food Canada: National soil database, nsd008.20000530, http://sis.agr.gc.ca/cansis/nsdb/slc/intro.html, 2002.; Bachu, S. and Cuthiell, D.: Effects of core-scale heterogeneity on steady state and transient fluid flow in porous media: Numerical analysis, Water...

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Improving Multi-objective Reservoir Operation Optimization with Se...

By: H. Zhou; J. Chu; G. Fu; C. Zhang; Y. Li

Description: School of Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China. This study investigates the effectiveness of a sensitivity-informed method for multi-objective operation of reservoir systems, which uses global sensitivity analysis as a screening tool to reduce computational demands. Sobol's method is used to screen insensitive decision variables and guide the formulation of the optimization problems with a significantly reduced nu...

Castelletti, A., Pianosi, F., Quach, X., and Soncini-Sessa, R.: Assessing water reservoirs management and development in Northern Vietnam, Hydro l. Earth Syst. Sci., 16, 189–199, doi:10.5194/hess-16-189-2012, 2012.; Celeste, A. B. and Billib, M.: Evaluation of stochastic reservoir operation optimization models, Adv. Water Resour., 32, 1429–1443, 2009.; Chang, F. J., Chen, L., and Chang, L. C.: Optimizing the reservoi...

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