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Geological Factors Affecting the Chemical Characteristics of the T...

By: N. N. Cat; J. Dazy; C. Drogue

Description: Hydrogéologie, UMR 5569 Hydrosciences, Université Montpellier 2, place Eugène Bataillon, 34095 Montpellier Cedex 5, France. In northern Vietnam, exposed carbonate rock formations cover an area of more than 50,000 km2 .Their accumulated thickness from the Cambrian to the Triassic is in some places as much as 3000 m. Numerous thermal waters (springs and wells) occur in these strongly karstified carbonate massifs. This is the result...

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Towards a More Representative Parametrisation of Hydrologic Models...

By: J. Cullmann; T. Krauße

Description: Institute of Hydrology and Meteorology, Department of Hydrology, Dresden University of Technology, Bergstr. 66, 01062 Dresden, Germany. The development of methods for estimating the parameters of hydrologic models considering uncertainties has been of high interest in hydrologic research over the last years. In particular methods which understand the estimation of hydrologic model parameters as a geometric search of a set of robust performing parameter v...

Beven, K. and Binley, A.: The future of distributed models: Model calibration and uncertainty prediction, Hydrol. Process., 6, 279–298, doi:10.1002/hyp.3360060305, 1992.; Brakensiek, D., Rawls, W., and Stephenson, G.: Modifying SCS hydrological soil groups and curve numbers for rangeland soils, ASAE Paper, PNR-84-203, St. Joseph/ Michigan, 1984. % unfortunately in our print and available online sources no page numbers ...

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Benthic Invertebrates in the Headwaters of the Wye and Severn: Eff...

By: J. H. R. Gee; B. D. Smith

Description: Institute of Biological Sciences, The University of Wales, Aberystwyth, Ceredigion SY23 3DA, UK. Invertebrate communities were recorded in three surveys between 1974 and 1994 of headwaters of the Wye and Severn at Plynlimon: the Afon Gwy (unforested), the Afon Hore (initially forested) and the Afon Hafren (forested throughout). The data cover periods before and after the clear-felling of a large area of coniferous forest in the catchment of the Hore. <...

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Future Directions for Hydropedology: Quantifying Impacts of Global...

By: J. L. Heitman; R. E. Austin; M. J. Vepraskas

Description: Department of Soil Science, North Carolina State University, Box 7619, Raleigh, NC 27695-7619, USA. Hydropedology is well positioned to address contemporary issues resulting from climate change. We propose a six step process by which digital, field-scale maps will be produced to show where climate change impacts will be greatest for two land uses: a) home sites using septic systems, and b) wetlands. State and federal laws have defined critical water tabl...

Amador, J. A., Potts, D. A., Savin, M. C., Tomlinson, P., Gorres, J. H., and Nicosia, E. L.: Mesocosm-scale evaluation of faunal and microbial communities of aerated and unaerated leachfield soil, J. Environ. Qual., 35(4), 1160–1169, 2006.; Amatya, D. M., Skaggs, R. W., and Gregory, J. D.: Evaluation of a watershed scale forest hydrologic model, J. Agric. Water Management 32, 239–258, 1997.; Amatya, D. M., Sun, G., Skaggs, R. W., Chescheir, G. M., and Nettles, J. E.: Hyd...

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Introducing Empirical and Probabilistic Regional Envelope Curves I...

By: Th. Hofherr; B. Merz; B. Guse

Description: Deutsches GeoForschungsZentrum Potsdam GFZ, Section 5.4 – Hydrology, Telegrafenberg, 14473 Potsdam, Germany. A novel approach to consider additional spatial information in flood frequency analyses, especially for the estimation of discharges with recurrence intervals larger than 100 years, is presented. For this purpose, large flood quantiles, i.e. pairs of a discharge and its corresponding recurrence interval, as well as an upper bound discharge, are co...

BKG GeoDataCentre (Federal Agency for Cartography and Geodesy): Digital Landscape Model ATKIS Basis DLM, Frankfurt/Main, 2005.; Benito, G., Lang, M., Barriendos, M., Llasat, M. C., Francés, F., Ouarda, T. B. M. J., Thorndycraft, V. R., Enzel, Y., Bárdossy, A., Coeur, D., and Bobée, B.: Use of Systematic, Palaeoflood and Historical Data for the Improvement of Flood Risk Estimation, Review of Scientific Methods, Nat. Hazards, 31(3), 623–643, 2004.; Burn, D. H.: Evaluation ...

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Technical Note:Practical Considerations on the Use of Down-sized T...

By: M. A. Mojid

Description: Department of Irrigation and Water Management, Bangladesh Agricultural University, Mymensingh – 2202, Bangladesh. Nine time-domain reflectometry (TDR) probes, 2 to 10 cm long, were evaluated by comparing their measurement accuracy of TDR-pulse travel time in a sand and sandy loam soil, and electrical conductivity in NaCl solutions. TDR probes <2.5 cm in length generated trough-haped TDR waveforms with rounded corners at the points of the pulse reflectio...

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Pertinent Spatio-temporal Scale of Observation to Understand Suspe...

By: J.-l. Guyot; T. Condom; P. Vauchel; A. Crave; S. B. Morera; C. Galvez

Description: Geosciences Environnement Toulouse, 14 avenue Edouard-Belin, Toulouse, France. Hydro-sedimentology development is a great challenge in Peru due to limited data as well as sparse and confidential information. This study aimed to quantify and to understand the suspended sediment yield from the west-central Andes Mountains and to identify the main erosion-control factors and their relevance. The Tablachaca River (3132 km2) and the Santa River (6...

Aalto, R., Dunne, T., and Guyot, J. L.: Geomorphic controls on Andean denudation rates, J. Geol., 114, 85–99, doi:10.1086/498101, 2006.; Adams, J. B., Sabol, D. E., Kapos, V., Filho, R. A., Roberts, D. A., and Smith, M. O.: Classification of multispectral images based on fractions of endmembers: application to land-cover change in the Brazilian Amazon, Remote Sens. Environ., 52, 137–154, 1995.; Agramonte, J. and Diaz, A.: Inve...

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The Water Footprint of Indonesian Provinces Related to the Consump...

By: A. Y. Hoekstra; M. J. Booij; F. Bulsink

Description: Twente Water Centre, University of Twente, Enschede, The Netherlands. National water use accounts are generally limited to statistics on water withdrawals in the different sectors of economy. They are restricted to blue water accounts related to production, thus excluding (a) green and grey water accounts, (b) accounts of internal and international virtual water flows and (c) water accounts related to consumption. This paper shows how national water-use...

ADB: Indonesia: strategic vision for agriculture and rural development, Asian Development Bank, Manila, Philippines, 2006.; BMG: Climatic data from weather stations over Indonesia, Badan Meteorologi dan Geofisika, Jakarta, Indonesia, 2008.; Allen, R. G., Pereira, L. S., Raes, D., and Smith, M.: Crop evapotranspiration: Guidelines for computing crop water requirements, FAO Irrigation and Drainage Paper 56, Food and Agricultural Organization, Rome, Italy, 1998.; BPS: Land ...

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Technical Note: Evaluation of Between-sample Memory Effects in the...

By: M. Michelini; M. Šanda; L. I. Wassenaar; B. Stenni; M. Bonazza; B. Čejková; S. Wrede; T. A. Bogaard; M. Borga; N. Mantese; D. Penna; G. Zuecco; M. Sobotková; B. M. C. Fischer; A. Gobbi

Description: Department of Land, Environment, Agriculture and Forestry, University of Padova, Italy. This study evaluated between-sample memory in isotopic measurements of Δ2H and Δ18O in water samples by laser spectroscopy. Ten isotopically depleted water samples spanning a broad range of oxygen and hydrogen isotopic compositions were measured by three generations of off-axis integrated cavity output spectroscopy and cavity ring-down spectrosc...

Brand W. A., Geilmann, H., Crosson, E. R., and Rella, C. W.: Cavity ring-down spectroscopy versus high-temperature conversion isotope ratio mass spectrometry; a case study on δ2H and δ18O of pure water samples and alcohol/water mixtures, Rapid Commun. Mass Sp., 23, 1879–1884, doi:10.1002/rcm.4083, 2009.; Chesson, L. A., Bowen, G. J., and Ehleringer, J. R.: Analysis of the hydrogen and oxygen stable isot...

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Indirect Downscaling of Hourly Precipitation Based on Atmospheric ...

By: A. Bárdossy; F. Beck

Description: University of Stuttgart, Institute for Modelling Hydraulic and Environmental Systems, Stuttgart, Germany. The main source of information on future climate conditions are global circulation models (GCMs). While the various GCMs agree on an increase of surface temperature, the predictions for precipitation exhibit high spread among the models, especially in shorter-than-daily temporal resolution. This paper presents a method to predict regional distributi...

Willems, P. and Vrac, M.: Statistical precipitation downscaling for small-scale hydrological impact investigations of climate change, J. Hydrol., 402, 193–205, 2011.; Wentz, F. J., Ricciardulli, L., Hilburn, K., and Mears, C.: How Much More Rain Will Global Warming Bring?, Science, 317, 233–235, 2007.; Aarts, E. and van Laarhoven, P.: Simulated annealing: An introduction, Statistica Neerlandica, 43, 31–52, 1989.; Bárdossy, A.: Generating Precipitation Time Series Using S...

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Hydrological Model Parameter Dimensionality is a Weak Measure of P...

By: H. Savenije; L. A. Bastidas; S. Pande; L. Arkesteijn

Description: Department of Water Management, Delft University of Technology, Delft, the Netherlands. This paper shows that instability of hydrological system representation in response to different pieces of information and associated prediction uncertainty is a function of model complexity. After demonstrating the connection between unstable model representation and model complexity, complexity is analyzed in a step by step manner. This is done measuring diffe...

Schoups, G., van de Giesen, N. C., and Savenije, H. H. G.: Model complexity control for hydrologic prediction, Water Resour. Res., 44, W00B03, doi:10.1029/2008WR006836. 2008.; Sivapalan, M., Blöschl, G., Zhang, L., and Vertessy, R.: Downward approach to hydrological prediction, Hydrol. Process., 17, 2101–2111, doi:10.1002/hyp.1425, 2003.; Son, K. and Sivapalan, M.: Improving...

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Monitoring and Quantifying Future Climate Projections of Dryness a...

By: K. Fraedrich; O. Bothe; F. Sienz

Description: Max-Planck-Institute for Meteorology, Bundesstraße 53, 20146 Hamburg, Germany. The adequacy of the gamma distribution (GD) for monthly precipitation totals is reconsidered. The motivation for this study is the observation that the GD fails to represent precipitation in considerable areas of global observed and simulated data. This misrepresentation may lead to erroneous estimates of the Standardised Precipitation Index (SPI), evaluations of models, and ...

Akaike, H.: A New Look at the Statistical Model Identification, IEEE T. Automat. Contr., 19, 716–723, 1974.; Alexander, L. V. and Jones, P. D.: Updated precipitation series for the U.K. and discussion of recent extremes, Atmos. Sci. Lett., 1, 142–150, 2001.; Bordi, I. and Sutera, A.: Fifty years of precipitation: Some spatially remote teleconnections, Water Resour. Manage., 15, 247–280, 2001.; Bordi, I., Fraedrich, K., and Sutera, A.: Observed drought and wetness trends ...

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Analysis of Soil and Vegetation Patterns in Semi-arid Mediterranea...

By: V. Iacobellis; M. Sivapalan; I. Portoghese

Description: Istituto di Ricerca Sulle Acque, Bari, Italy. This paper investigates the impact of various vegetation types on water balance variability in semi-arid Mediterranean landscapes, and the different strategies they may have developed to succeed in such water-limited environments. The existence of preferential associations between soil water holding capacity and vegetation species is assessed through an extensive soil geo-database focused on a study region i...

Allen, R. G., Pereira, L. S., Raes, D., and Smith, M.: Crop Evapotranspiration, FAO Irrigation and Drainage Paper No 56, United Nations Food and Agriculture Organization, Rome, Italy, 1998.; Atkinson, S. E., Woods, R. A., and Sivapalan, M.: Climate and landscape controls on model complexity, Water Resour. Res., 38(12), 1314–1330, 2002.; Caliandro, A., Lamaddalena, N., Stelluti, M., and Steduto, P.: ACLA 2 Project – Agro-Ecologic characterization of the Puglia region, CHI...

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A Multimodel Ensemble Approach to Assessment of Climate Change Imp...

By: D. P. Lettenmaier; N. S. Christensen

Description: Department of Civil and Environmental Engineering Box 352700, University of Washington, Seattle WA 98195, USA. Implications of 21st century climate change on the hydrology and water resources of the Colorado River Basin were assessed using a multimodel ensemble approach in which downscaled and bias corrected output from 11 General Circulation Models (GCMs) was used to drive macroscale hydrology and water resources models. Downscaled climate scenarios (en...

Brown, R. D.: Northern hemisphere snow cover variability and change, 1915–97, J. Climate, 13, 2339–2355, 2000.; Christensen, N. S., Wood, A. W., Voisin, N., Lettenmaier, D. P., and Palmer, R. N.: Effects of climate change on the hydrology and water resources of the Colorado River Basin, Climatic Change, 62, 337–363, 2004.; Delworth, T. L., Broccoli, A. J., Rosati, A., Stouffer, R. J., Balaji, V., Beesley, J. A., Cooke, W. F., Dixon, K. W., Dunne, J., Dunne, K. A., Durach...

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Nonstationarities in the Occurrence Rates of Flood Events in Portu...

By: M. M. Portela; M. Naghettini; A. T. Silva

Description: Instituto Superior Técnico, Technical University of Lisbon, Lisbon, Portugal. An exploratory analysis on the variability of flood occurrence rates in Portuguese watersheds is made, to ascertain if that variability is concurrent with the principle of stationarity. A peaks-over-threshold (POT) sampling technique is applied to 10 long series of mean daily streamflows and to 4 long series of daily rainfall in order to sample the times of occurrence (POT tim...

Bates, B., Kundzewicz, Z., Wu, S., and Palutikof, J.: Climate change and water, Tech. rep., Intergovernmental Panel on Climate Change, 2008.; Beguer\'{i}a, S.: Uncertainties in partial duration series modelling of extremes related to the choice of the threshold value, J. Hydrol., 303, 215–230, 2005.; Cleveland, W.: Robust locally weighted regression and smoothing scatterplots, J. Am. Stat. Assoc., 74, 829–836, 1979.; Corte-Real, J., Qian, B., and Xu, H.: Regional climate...

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Catchment Classification Based on Characterisation of Streamflow a...

By: E. Toth

Description: Department DICAM, University of Bologna, Bologna, Italy. The formulation of objective procedures for the delineation of homogeneous groups of catchments is a fundamental issue in both operational and research hydrology. For assessing catchment similarity, a variety of hydrological information may be considered; in this paper, gauged sites are characterised by a set of streamflow signatures that include a representation, albeit simplified, of the propert...

Burn, D. H.: Cluster analysis as applied to regional floood frequency, J. Water Resour. Pl.-ASCE, 115, 567–582, 1989.; Burn, D. H. and Goel, N. K.: The formation of groups for regional flood frequency analysis, J. Hydrol. Sci., 45, 97–112, 2000.; Bhaskar, N. R. and O'Connor, C. A. : Comparison of method of residuals and cluster analysis for flood regionalization, J. Water Resour. Pl.-ASCE, 115, 793–808, 1989.; Atkinson, S. E., Woods, R. A., and Sivapalan, M.: Climate, so...

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Interannual Hydroclimatic Variability and Its Influence on Winter ...

By: A. Sankarasubramanian; J. Oh

Description: Department of Civil, Construction and Environmental Engineering, North Carolina State University, Raleigh, NC 27695-5908, USA. It is well established in the hydroclimatic literature that the interannual variability in seasonal streamflow could be partially explained using climatic precursors such as tropical Sea Surface Temperature (SST) conditions. Similarly, it is widely known that streamflow is the most important predictor in estimating nutrient loadi...

Akaike, H.: A new look at the statistical model identification, IEEE T. Automat. Contr., 19, 716–723, 1974.; Alexander, R. B. and Smith, R. A.: Trends in the nutrient enrichment of U.S. rivers during the late 20th century and their relation to changes in probable stream trophic conditions, Limnol. Oceanogr., 51, 639–654, 2006.; Alexander, R. B., Slack, J. R., Ludtke, A. S., Fitzgerald, K. K., and Schertz, T. L.: Data from selected US Geological Survey national stream wat...

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Spatial Variation of Soil Physical Properties in Adjacent Alluvial...

By: S. Erşahin; H. S. Öztürk; A. I. Özkan; M. Sağlam

Description: Department of Soil Science, Ondokuz Mayıs University, Samsun, Turkey. Soils vary spatially due to differences in soil management and soil formation factors. The soil spatial variability is an important determinant of efficiency of farm inputs and yield. This study was carried out to identify and compare spatial variation of some soil physical properties by geostatistics in alluvial and adjacent colluvial soils formed under ustic moisture regime at Gökhö...

Arya, L. M., Heitman, J. L., Thapa, B. B., and Bowman, D. J. Predicting saturated hydraulic conductivity of golf course sands from particle-size distribution, Soil Sci. Soc. Am. J., 74, 33–37, 2000.; Cambardella, C. A., Moorman, T. B., Novak, J. M., Parkin, T. B., Karlen, D. L., Turco, R. F., and Konopka, A. E.: Field-scale variability soil properties in Central Iowa Soils, Soil Sci. Soc. Am. J., 58, 1501–1511, 1994.; Diekmann, L. O., Lawrence, D., and Okin, G. S.: Chang...

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A Comparison Between Soil Loss Evaluation Index and the C-factor o...

By: W. W. Zhao; B. J. Fu; L. D. Chen

Description: State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, China. Land use and land cover are most important in quantifying soil erosion. Based on the C-factor of the popular soil erosion model, Revised Universal Soil Loss Equation (RUSLE) and a scale-pattern-process theory in landscape ecology, we proposed a multi-scale soil loss evaluation index (SL) to evaluate the effects of land use patterns on soil ero...

Bakker, M. M., Govers, G., van Doorn, A., Quetier, F., Chouvardas, D., and Rounsevell, M.: The response of soil erosion and sediment export to land-use change in four areas of Europe: the importance of landscape pattern, Geomorphology, 98, 213–226, 2008.; Chen, L. D., Wang, J., Fu, B. J., and Qiu, Y.: Land-use change in a small catchment of northern Loess Plateau, China, Agr. Ecosyst. Environ., 86, 163–172, 2001.; Chen, L. D., Fu, B. J., and Zhao, W. W.: Source-sink land...

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Desiccation-crack-induced Salinization in Deep Clay Sediment : Vol...

By: D. Kurtzman; Z. Ronen; O. Dahan; S. Baram; C. Külls

Description: Department of Environmental Hydrology & Microbiology, Zuckerberg Institute for Water Research, Albert Katz International School for Desert Studies, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, 84990, Israel. A study on water infiltration and solute transport in a clayey vadose zone underlying a dairy farm waste source was conducted to assess the impact of desiccation cracks on subsurface evaporation and s...

Acworth, R. I. and Timms, W. A.: Evidence for connected water processes through smectite-dominated clays at Breeza, New South Wales, Aust. J. Earth Sci., 56, 81–96, doi:10.1080/08120090802541952, 2009.; Adams, J. E. and Hanks, S.: Evaporation from soil shrinkage cracks, Soil Sci. Soc. Am. Pro., 28, 281–284, 1964.; Adams, J. E., Ritchie, J. T., Burnett, E., and Fryrear, D. W.: Evaporation from a simulated soil shrink...

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