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Dynamic Analysis of Groundwater Discharge and Partial-area Contrib...

By: V. J. Bidwell; G. F. Barkle; R. Stenger

Description: Lincoln Environmental Research, Lincoln Ventures Ltd, Christchurch, New Zealand. The proportion and origin of groundwater contribution to streamflow from agricultural catchments is relevant to estimation of the effects of nitrate leached from the soil on the quality of surface waters. This study addresses the partitioning of streamflow contributions from near-surface runoff and from groundwater, each with different contributing land area, on a steep pas...

Bidwell, V. J.: Realistic forecasting of groundwater level, based on the eigenstructure of aquifer dynamics, Math. Comput. Simulat., 69, 12–20, 2005.; Adams, R., Parkin, G., Rutherford, J. C., Ibbitt, R. P., and Elliott, A. H.: Using a rainfall simulator and a physically based hydrological model to investigate runoff processes in a hillslope, Hydrol. Process., 19, 2209–2223, 2005.; Adams, R. and Elliott, S.: Physically based modelling of sediment generation and transport...

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Kalman Filters for Assimilating Near-surface Observations Into the...

By: H. Medina; N. Romano; G. B. Chirico

Description: Department of Agricultural Engineering, University of Naples Federico II, Naples, Italy. This paper examines the potential of different algorithms, based on the Kalman filtering approach, for assimilating near-surface observations into a one-dimensional Richards equation governing soil water flow in soil. Our specific objectives are: (i) to compare the efficiency of different Kalman filter algorithms in retrieving matric pressure head profiles when they ...

Camporese, M., Paniconi, C., Putti, M., and Salandin, P.: Ensemble Kalman filter data assimilation for a process based catchment scale model of surface and subsurface flow, Water Resour. Res., 45, W10421, doi:10.1029/2008WR007031, 2009.; Celia, M. A., Bououtas, E. T., and Zarba, R. L.: A general mass-conservative numerical solution for the unsaturated flow equation, Water Resour. Res., 26, 1483–1496, 1990.; Chirico, G. B...

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Physical Changes Within a Large Tropical Hydroelectric Reservoir I...

By: J. L. Stech; E. H. Alcântara; C. D. Rennó; M. P. Curtarelli

Description: National Institute for Space Research, São José dos Campos, São Paulo, Brazil. We investigated the influence of wintertime cold front activity on the physical processes within a large tropical reservoir located in Brazil. The period chosen for this study consisted of 49 days between 28 April 2010 and 15 July 2010. This period was defined based on information from the Brazilian Center for Weather Forecasting and Climate Studies (CPTEC), data collected in...

Ackerman, S. A., Strabala, K. I., Menzel, W. P., Frey, R. A., Moeller, C. C., and Gumley, L. E.: Discriminating clear-sky from clouds with MODIS, J. Geophys. Res., 103, 32141–32173, 1998.; Alcântara, E. H., Bonnet, M. P., Assireu, A. T., Stech, J. L., Novo, E. M. L. M., and Lorenzzetti, J. A.: On the water thermal response to the passage of cold fronts: initial results for Itumbiara reservoir (Brazil), Hydrol. Earth Syst. Sci. Discuss., 7, 9437–9465,

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High-resolution Monitoring of Catchment Nutrient Response to the E...

By: C. McW. H. Benskin; J. Jonczyk; C. Lloyd; K. M. Hiscock; P. J. Johnes; C. J. Steele; P. M. Haygarth; J. Freer; F. Grant; F. N. Outram; S. R. Dorling; A. L. Collins; A. L. Lovett

Description: School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK. The Demonstration Test Catchments (DTC) project is a UK Government funded initiative to test the effectiveness of on-farm mitigation measures designed to reduce agricultural pollution without compromising farm productivity. Three distinct catchments in England have been chosen to test the efficacy of mitigation measures on working farms in smal...

Jordan, P., Arnscheidt, A., McGrogan, H., and McCormick, S.: Characterising phosphorus transfers in rural catchments using a continuous bank-side analyser, Hydrol. Earth Syst. Sci., 11, 372–381, doi:10.5194/hess-11-372-2007, 2007.; Jordan, P., Arnscheidt, J., McGrogan, H., and McCormick, S.: High-resolution phosphorus transfers at the catchment scale: the hidden importance of non-storm transfers, Hydrol. Earth Syst. ...

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The Impact of the Growth of New Plantation Forestry on Evaporation...

By: M. Robinson; J. A. Hudson; S. B. Crane

Description: Institute of Hydrology (Plynlimon), Staylittle, SY19 7DB, Wales, UK.. Annual water balances (1983-1995) for the Cwm and Delyn catchments at Llanbrynmair Moor in mid-Wales have been used to quantify the hydrological effects of the land use change in the Cwm from moorland to forestry. Initially, the actual evaporation (precipitation minus streamflow) of the Cwm catchment declined rapidly relative to the Delyn, due to the disruption of the vegetation by pl...

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A Parsimonious Analytical Model for Simulating Multispecies Plume ...

By: C.-w. Liu; C.-p. Liang; L. Y. Li; J.-s. Chen

Description: Graduate Institute of Applied Geology, National Central University, Jhongli, Taoyuan 32001, Taiwan. A parsimonious analytical model for rapidly predicting the long-term plume behavior of decaying contaminant such as radionuclide and dissolved chlorinated solvent is presented in this study. Generalized analytical solutions in compact format are derived for the two-dimensional advection-dispersion equations coupled with sequential first-order decay reacti...

Barry, D. A. and Sposito, G.: Application of the convection-dispersion model to solute transport in finite soil columns, Soil Sc. Soc. Am. J., 52, 3–9, 1988.; Aziz, C. E., Newell, C. J., Gonzales, J. R., Haas, P., Clement, T. P., and Sun, Y.: BIOCHLOR – Natural attenuation decision support system v1.0, EPA Center for Subsurface Modeling Support (CSMOS), Ada, Oklahoma, User's Manual, US EPA Report, EPA 600/R-00/008, 2000.; Batu, V.: A generalized two-dimensional analytica...

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Flooding in River Mouths: Human Caused or Natural Events? Five Cen...

By: A. M. J. De Kraker

Description: VU-University, De Boelelaan 1085, 1081 HV, Amsterdam, the Netherlands. This paper looks into the flooding events of the past 500 years in the SW Netherlands addressing the issue what kind of flooding events have occurred and which ones have mainly natural causes and which ones are predominantly human induced. The flooding events are classified into two major categories: (a) flooding events that were caused during storm surges and (b) flooding events ...

Baart, F., Bakker, M. A. J., van Dongeren, A., den Heijer, C., van Heteren, S., Smit, M. W. J., van Koningsveld, M., and Pool, A.: Using 18th century storm-surge data from the Dutch Coast to improve the confidence in flood-risk estimates, Nat. Hazards Earth Syst. Sci., 11, 2791–2801, doi:10.5194/nhess-11-2791-2011, 2011.; Baeteman, C.: History of research and state of the art of the Holocene depositional history of...

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Filter Properties of Seam Material from Paved Urban Soils : Volume...

By: M. Hajnos; Z. Sokolowska; G. Wessolek; T. Nehls; G. Jozefaciuk

Description: Berlin Institute for Technology, Dept. for Ecology, Chair for Soil Conservation, Salzufer 11-12, 10587 Berlin, Germany. Depositions of all kinds of urban dirt and dust including anthropogenic organic substances like soot change the filter properties of the seam filling material of pervious pavements and lead to the formation of a new soil substrate called seam material.

In this study, the impact of the particular urban form of organic matter (OM...

Burghardt, W.: Soils in urban and industrial environments, Journal of Plant Nutrition and Soil Science, 157, 205–214, 1994.; Adhikari, T. and Singh, M.: Sorption characteristics of lead and cadmium in some soils of India, Geoderma, 114, 81–92, 2003.; Aranovich, G.: The theory of polymolecular adsorption, Langmuir, 8, 736–739, 1992.; Boller, M.: Tracking heavy metals reveals sustainability deficits of urban drainage systems, Water Science and Technology, 35, 77–87, 1997.;...

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Accounting for Global-mean Warming and Scaling Uncertainties in Cl...

By: A. Mezghani; K. Bogner; A. Musy; N. Mouhous; B. Hingray; B. Schaefli

Description: A probabilistic assessment of climate change and related impacts should consider a large range of potential future climate scenarios. State-of-the-art climate models, especially coupled atmosphere-ocean general circulation models and Regional Climate Models (RCMs) cannot, however, be used to simulate such a large number of scenarios. This paper presents a methodology for obtaining future climate scenarios through a simple scaling methodology. The projections...

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Eco-geomorphology and Vegetation Patterns in Arid and Semi-arid Re...

By: G. R. Hancock; P. M. Saco; G. R. Willgoose

Description: School of Engineering, The University of Newcastle, Callaghan, New South Wales, 2308, Australia. The interaction between vegetation and hydrologic processes is particularly tight in water-limited environments where a positive-feedback links water redistribution and vegetation. The vegetation of these systems is commonly patterned, that is, arranged in a two phase mosaic composed of patches with high biomass cover interspersed within a low-cover or bare s...

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Towards Understanding Hydroclimatic Change in Victoria, Australia ...

By: D. C. Verdon-kidd; A. S. Kiem

Description: Environmental and Climate Change Research Group, School of Environmental and Life Sciences, Faculty of Science and IT, University of Newcastle, Australia. Since the mid-1990s the majority of Victoria, Australia, has experienced severe drought conditions (i.e. the Big Dry) characterized by streamflow that is the lowest in approximately 80 years of record. While decreases in annual and seasonal rainfall totals have also been observed, this alone does not s...

Kiem, A. S., Franks, S. W., and Kuczera, G.: Multi-decadal variability of flood risk, Geophys. Res. Lett., 30, 1035, doi:1010.1029/2002GL015992, 2003.; Ashok, K., Guan, Z., and Yamagata, T.: Influence of the Indian Ocean Dipole on the Australian winter rainfall, Geophys. Res. Lett., 30(15), 1821, doi:10.1029/2003GL017926, 2003.; Ashok, K., Tam, C.-Y., and Lee, W.-J.: ENSO Modoki impact on the Southern Hemisphere storm track activity during extended austral winter, Geophy...

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Land Cover and Water Yield: Inference Problems when Comparing Catc...

By: J. L. Peña-arancibia; L. A. (Sampurno) Bruijnzeel; A. I. J. M. Van Dijk

Description: Fenner School for Environment & Society, Australian National University, Canberra, Australia. Controlled experiments provide strong evidence that changing land cover (e.g. deforestation or afforestation) can affect mean catchment streamflow (Q). By contrast, a similarly strong influence has not been found in studies that interpret Q from multiple catchments with mixed land cover. One possible reason is that there are methodological issues w...

Andréassian, V.: Waters and forests: from historical controversy to scientific debate, J. Hydrol., 291, 1–27, 2004.; Austin, J., Zhang, L., Jones, R. N., Durack, P., Dawes, W., and Hairsine, P.: Climate change impact on water and salt balances: an assessment of the impact of climate change on catchment salt and water balances in the Murray-Darling Basin, Australia, Climatic Change, 100, 607–631, 2010.; Beven, K., Young, P., Romanowicz, R., O'Connell, E., Ewen, J., O'Donn...

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Internal and External Green-blue Agricultural Water Footprints of ...

By: D. Gerten; J. Heinke; M. Thammer; W. Lucht; W. Cramer; M. Fader; H. Lotze-campen

Description: Potsdam Institute for Climate Impact Research, Telegraphenberg, 14473 Potsdam, Germany. The need to increase food production for a growing world population makes an assessment of global agricultural water productivities and virtual water flows important. Using the hydrology and agro-biosphere model LPJmL, we quantify at 0.5° resolution the amount of blue and green water (irrigation and precipitation water) needed to produce one unit of crop yield, for 1...

Aldaya, M. M., Hoekstra, A. Y., and Allan, J. A.: Strategic importance of green water in international crop trade, Value of Water Research Report Series No. 25, 30 pp., 2008.; Aldaya, M. M., Allan, J. A., and Hoekstra, A. Y.: Strategic importance of green water in international crop trade, Ecol. Econ., 69, 887–894, 2010.; Biemans, H., Hutjes, R., Kabat, P., Strengers, B., Gerten, D., and Rost, S.: Impacts of precipitation uncertainty on discharge calculations for main ri...

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A Process-based Typology of Hydrological Drought : Volume 8, Issue...

By: H. A. J. Van Lanen; A. F. Van Loon

Description: Hydrology and Quantitative Water Management Group, Centre for Water and Climate, Wageningen University, P.O. Box 47, 6700 AA, Wageningen, The Netherlands. Hydrological drought events have very different causes and effects. Classifying these events into distinct types can be useful for both science and management. We propose a classification of hydrological drought types that is based on the governing drought propagation processes. In this cla...

Uhlenbrook, S., Seibert, J., Leibundgut, C., and Rodhe, A.: Prediction uncertainty of conceptual rainfall-runoff models caused by problems in identifying model parameters and structure, Hydrolog. Sci. J., 44, 779–797, 1999.; UN: Humanitarian Requirements for the Horn of Africa Drought 2011, available at: http://ochaonline.un.org/humanitarianappeal/webpage.asp?Page=1955 (last access: 25 October ...

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Floodplain Sediment from a 30-year-recurrence Flood in 2005 of the...

By: S. H. Wood; A. D. Ziegler

Description: Department of Geosciences, Boise State University, Boise, ID 83702 USA. This paper documents the nature of flood-producing storms and floodplain deposition associated with the 28 September–2 October 2005 30-year-recurrence flood on the Ping River in northern Thailand. The primary purpose of the study is to understand the extent that deposits from summer-monsoon floods can be identified in floodplain stratigraphy A secondary objective is to document the ...

Kidson, R., Richards, K. S., and Carling, P. A.: Reconstructing the ca. 100-year flood in Northern Thailand, Geomorphology, 70, 279–295, 2005.; Asian Disaster Preparedness Center: Rapid assessment: Flashflood and landslide disaster in the provinces of Uttaradit and Sukhothai, Northern Thailand, May 2006, available at www.adpc.net/enewsjuly/Uttaradit_rapidassessment.pdf, 2006.; Asselman, N. E. M. and Middlekoop, H.: Floodplain sedimentation: Quantities, patterns and proce...

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Climate Change and Non-stationary Flood Risk for the Upper Truckee...

By: T. Pruitt; S. Gangopadhyay; L. E. Condon

Description: Bureau of Reclamation, Technical Service Center, Denver, Colorado, USA. Future flood frequency for the upper Truckee River basin (UTRB) is assessed using non-stationary extreme value models and design-life risk methodology. Historical floods are simulated at two UTRB gauge locations, Farad and Reno, using the Variable Infiltration Capacity (VIC) model and non-stationary Generalized Extreme Value (GEV) models. The non-stationary GEV models are fit to the...

Akaike, H.: New look at statistical-model identification, IEEE Trans. Autom. Control, 19, 716–723, 1974.; Allan, R. P.:Climate change: Human influence on rainfall, Nature, 470, 344–345, 2011.; Cayan, D. R., Redmond, K. T., and Riddle, L. G.: ENSO and Hydrologic Extremes in the Western United States, J. Climate, 12, 2881–2893, 1999.; Cayan, D. R., Kammerdiener, S. A., Dettinger, M. D., Caprio, J. M., and Peterson, D. H.: Changes in the Onset of Spring in the Western U.S.,...

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Characterization of Spatial Heterogeneity of Groundwater-stream Wa...

By: M. Schirmer; C. Schmidt; M. Bayer-raich

Description: Department of Hydrogeology, UFZ Centre for Environmental Research Leipzig-Halle in the Helmholtz Association, Leipzig, Germany. Streambed temperatures can be easily, accurately and inexpensively measured at many locations. To characterize patterns of groundwater-stream water interaction with a high spatial resolution, we measured 140 vertical streambed temperature profiles along a 220 m section of a small man-made stream. Groundwater temperature at a suf...

Anderson, J. K., Wondzell, S. M., Gooseff, M. N., and Haggerty, R.: Patterns in stream longitudinal profiles and implications for hyporheic exchange flow at the H. J. Andrews Experimental Forest, Oregon, USA, Hydrol. Processes, 19(15), 2931–2949, 2005.; Anderson, M. P.: Heat as a ground water tracer, Ground Water, 43(6), 951–968, 2005.; Bartolino, J. R. and Niswonger, R. G.: Numerical simulation of vertical ground-water flux of the Rio Grande from ground-water temperatur...

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Space-time Variability of Hydrological Drought and Wetness in Iran...

By: I. Bordi; A. Sutera; L. S. Pereira; T. Raziei

Description: Soil Conservation and Watershed Management Research Institute (SCWMRI), Iran. Space-time variability of hydrological drought and wetness over Iran is investigated using the National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis and the Global Precipitation Climatology Centre (GPCC) dataset for the common period 1948–2007. The aim is to complement previous studies on the detection of long-term trends...

Beck, C., Grieser, J., and Rudolf, B.: A new monthly precipitation climatology for the global land areas for the period 1951 to 2000, DWD, Klimastatusbericht KSB 2004, ISSN 1437–7691, ISSN 1616–5063 (internet), ISBN 3-88148-402-7, 181–190, 2005.; Bordi, I., Dell'Aquila, A., Speranza, A., and Sutera, A.: Formula for a baroclinic adjustment theory of climate, Tellus, 54A, 260–272, 2002.; Bordi, I. and Sutera, A.: Drought variability and its climatic implications, Global Pl...

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An Evaluation of Ascat Surface Soil Moisture Products with In-situ...

By: J.-c. Calvet; V. Naeimi; D. Carrer; C. Rüdiger; N. Fritz; C. Albergel; Z. Bartalis; S. Hasenauer

Description: CNRM/GAME (Météo-France, CNRS), Toulouse, France. A long term data acquisition effort of profile soil moisture is currently underway at 13 automatic weather stations located in southwestern France. In this study, the soil moisture measured in-situ at 5 cm is used to evaluate the normalised surface soil moisture (SSM) estimates derived from coarse-resolution (25 km) active microwave data of the ASCAT scatterometer instrument (onboard METOP), issued by EU...

Albergel, C., Rüdiger, C., Pellarin, T., Calvet, J.-C., Fritz, N., Froissard, F., Suquia, D., Petitpa, A., Piguet, B., and Martin, E.: From near-surface to root-zone soil moisture using an exponential filter: an assessment of the method based on in-situ observations and model simulations, Hydrol. Earth Syst. Sci. Discuss., 5, 1603–1640, 2008.; Bartalis, Z., Wagner, W., Naeimi, V., Hasenauer, S., Scipal, K., Bonekamp, H, Figa, J., and Anderson, C.: Initial soil moisture r...

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Staged Cost Optimization of Urban Storm Drainage Systems Based on ...

By: K. Vairavamoorthy; B. Gersonius; A. Pathirana; M. Maharjan

Description: UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands. Urban flooding causes large economic losses, property damage and loss of lives. The impact of environmental changes mainly, the urbanization and the climatic change leads to increased runoff and increased peak flows which the drainage system must be able to cope with to overcome possible damage and inconveniences caused by the induced flooding. Allowing for detention...

Fraser, A. S.: Simulation of Genetic Systems by Automatic Digital Computers. I. Introduction, Australian Journal of Biological Sciences, 10, 484–491, 1957.; Bemfica, D. C.: Análise da aplicabilidade de padrões de chuva de projeto a Porto Alegre, Porto Alegre Universidade Federal do Rio Grande do Sul (UFRGS), Curso de Pós-Graduação em Recursos Hídricos e Saneamento Ambiental, 1999.; Campana, N. A. and Tucci, C.: Estimativa de área impermeável de macrobacias urbanas. Revis...

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