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  • 1
    Monograph available for loan
    Monograph available for loan
    Hydrological modelling in arid and semi-arid areas (2008)
    Cambridge [u.a.] : Cambridge Univ. Press
    Associated volumes
    Details Availability
    Call number: 20-1/M 08.0445
    In: International hydrology series
    Description / Table of Contents: Contens: Preface: H. S. Wheater, S. Sorooshian and K. D. Sharma; 1. Modelling hydrological processes in arid and semi-arid areas - an introduction H. Wheater; 2. Global precipitation estimation from satellite imagery using artificial neural networks S. Sorooshian, K.-L. Hsu, B. Imam and Y. Hong; 3. Modelling semi-arid and arid hydrology and water resources - the southern Africa experience D. A. Hughes; 4. Use of the IHACRES rainfall-runoff model in arid and semi-arid regions B. F. W. Croke and A. J. Jakeman; 5. KINEROS2 and the AGWA modelling framework D. J. Semmens, D. C. Goodrich, C. L. Unkrich, R. E. Smith, D. A. Woolhiser and S. N. Miller; 6. A distributed spatial sediment delivery model for arid regions K. D. Sharma; 7. The Modular Modeling System (MMS): a toolbox for water and environmental resources management G. H. Leavesley, S. L. Markstrom, R. J. Viger and L. E. Hay; 8. Calibration, uncertainty and regional analysis of conceptual rainfall-runoff models H. Wheater, T. Wagener and N. McIntyre; 9. Real-time flow forecasting P. C. Young; 10. Real-time flood forecasting - Indian experience R. D. Singh; 11. Groundwater modeling in hard-rock terrain in semi-arid areas: experience from India S. Ahmed, J.-C. Maréchal, E. Ledoux and G. de Marsily;
    Type of Medium: Monograph available for loan
    Pages: IX, 195 S. , Ill., graph. Darst., Kt.
    ISBN: 0521869188 , 978-0-521-86918-8
    Series Statement: International hydrology series
    Classification:
    Hydrology
    Language: English
    Location: Reading room
    Branch Library: GFZ Library
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  • 2
    Series available for loan
    Series available for loan
    Quantification of heterogeneity in the unsaturated flow using environmental isotopes (2008)
    Freiburg i. Br. : Inst. für Hydrologie der Univ.
    Associated volumes
    Details Availability
    Call number: ZS-065(26)
    In: Freiburger Schriften zur Hydrologie
    Description / Table of Contents: Knowledge about soil water transport and groundwater renewal rates is crucial for groundwater research and risk assessment. Particularly the impact of preferential flow paths in the unsaturated zone on pollutant transport is an important topic, as it affects the vulnerability of the adjacent aquifer. However, in literature the determination of preferential flow is only partly solved and especially quantification attempts have been rare. Therefore, a new method combining mathematical modelling with hydrological and environmental isotope data was developed to estimate the heterogeneity of the unsaturated transport processes. For this purpose, environmental isotope transport (18O, 2H) was investigated in several lysimeter experiments. A conceptual model was applied, which separates preferential and matrix flow. Both flow components are quantified and their transit time distribution functions are determined to construct specific vulnerability diagrams.Water flow and transport of environmental isotopes through the soil matrix was calculated using both a transient modelling approach solving numerically Richards and Convection-Dispersion-Equation for single porous medium and a lumped parameter approach using the Dispersion Model. The preferential flow component is assumed by piston flow occurring within one week and having no interaction with the soil matrix.For quantification a two component flow approach was applied to the isotope and hydrological data. The mean transit time distribution functions were obtained from the lumped parameter approach and visualized in specific vulnerability diagrams, showing when infiltrating water reaches the groundwater. This method was applied to different lysimeter experiments that were conducted under natural atmospheric conditions. Different lysimeters, filled mostly with sandy soil material, were under investigation to study the impact of soil properties and vegetation on the transport heterogeneity and amount of preferential flow.It was shown that the lumped parameter approach yielded good results modelling the isotope transport in the soils with bare surface. An application to the soils with vegetation required a modification of the classical input function including evapotranspiration and thus considering the infiltration events contributing to the discharge. Additional separation into the single vegetation periods improved the modelling.Preferential flow was observed in all soils and quantified with the two component flow approach. In bare sandy and gravel soils the mean fractions of preferential flow varied between 17 and 30 %. Here, the crucial parameter influencing these fractions was found to be the saturated hydraulic conductivity. In the cropped soils the mean fractions of preferential were dependent on the discharge rate and varied according to the vegetation. Mean fractions of 3 % and 18 % were observed in a loamy sand during intercrop period and cultivation of maize monoculture, respectively. The same soil material but cultivated with crop rotation yielded mean fractions of 14 % during maize, 4 % during winter barley and 15 % during the intercrop vegetation period. In a third experimental setup with sandy soil a mean fraction of 8 % was found.Specific vulnerability diagrams were constructed showing the mean transit time distribution functions of both, preferential and matrix flow. Their patterns were closely related to soil parameters. They can be used as a helpful tool to develop groundwater protection strategies more efficiently.It was shown that the presented method enabled the estimation of transport heterogeneity and the quantification of preferential flow under natural atmospheric conditions in bare and cropped lysimeters using environmental isotope data. Such isotopes are adequate tracer to study the transport processes in the unsaturated zone. It was revealed that experiments with continuous natural application like environmental tracers over long time periods were necessary to cover a broad range of flux variability and to determine transport heterogeneity.
    Type of Medium: Series available for loan
    Pages: VI, 111 S.
    Series Statement: Freiburger Schriften zur Hydrologie 26
    Classification:
    Hydrology
    Language: German
    Location: Lower compact magazine
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  • 3
    Series available for loan
    Series available for loan
    Socio-Economic Assessment of Water Supply in Rural Egypt (El-Gharbia Governorate, Saft Torab Case) (2006)
    München : Oldenbourg Industrieverl.
    Associated volumes
    Details Availability
    Call number: ZS-142(94)
    In: Mitteilungen
    Type of Medium: Series available for loan
    Pages: 185 S. , 53 schw.-w. Ill., 20 schw.-w. Tab. , 285 mm x 205 mm
    Edition: 1. Aufl.
    ISBN: 9783835631212 , 3-8356-3121-7
    Series Statement: Mitteilungen / Institut für Wasserwesen 94
    Uniform Title: Socio-Economic Assessment of Water Supply in Rural Egypt (El-Gharbia Governorate, Saft Torab Case)
    Classification:
    Hydrology
    Language: English
    Note: Zugl.: München,Univ. der Bundeswehr, Diss., 2005
    Location: Lower compact magazine
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  • 4
    Monograph available for loan
    Monograph available for loan
    Stable isotope ecology (2006)
    New York, NY : Springer-Verlag
    Associated volumes
    Details Availability
    Call number: 20/M 07.0074 ; AWI G6-22-820
    In: Environmental Science
    Type of Medium: Monograph available for loan
    Pages: XII, 308 Seiten , Illustrationen , 1 CD-ROM (12 cm)
    ISBN: 0-387-30513-0
    Series Statement: Environmental Science
    URL: https://www.gbv.de/dms/goettingen/502988940.pdf
    Classification:
    Ecology
    Language: English
    Note: Contents Acknowledgments Chapter 1. Introduction 1.1 Discovery 1.2 General Introduction 1.3 Just for Fun — An Isotope Biography of Mr. Polychaete Chapter 2. Isotope Notation and Measurement Overview 2.1 The Necessary Minimum for Ecologists 2.2 Why Use the 5 Notation? 2.3 Why Is 8 a Good Substitute for % Heavy Isotope? 2.4 8 and the Ratio-of-Ratios 2.5 Chapter Summary Chapter 3. Using Stable Isotope Tracers Overview 3.1 Isotope Circulation in the Biosphere 3.2 Landscape Ecology and Isotope Maps 3.3 Community Ecology and Invasive Species in Food Webs 3.4 Life History Ecology and Animal Migrations 3.5 Plants, Microbes, and Scaling Up 3.6 Chapter Summary Chapter 4. Isotope Chi ("I Chi") Overview 4.1 Chocolate Isotopes 4.2 Oxygen in the Sea 4.3 Equations for Isotope Chi ("I Chi") 4.4 Building an I Chi Gain-Loss Model, Step by Step 4.5 Errors in I Chi Models 4.6 Exact Equations for I Chi Models 4.7 Cows in a Pasture 4.8 Chapter Summary Chapter 5. Mixing Overview 5.1 Isotope Mixing in Food Webs 5.2 Isotope Sourcery 5.3 Mixing Mechanics 5.4 Advanced Mixing Mechanics 5.5 Mixing Assumptions and Errors or the Art and Wisdom of Using Isotope Mixing Models 5.6 River Sulfate and Mass-Weighted Mixing 5.7 A Special Muddy Case and Mixing Through Time 5.8 The Qualquan Chronicles and Mixing Across Landscapes 5.9 Dietary Mixing, Turnover, and a Stable Isotope Clock 5.10 Chapter Summary Chapter 6. Isotope Additions Overview 6.1 Addition Addiction 6.2 The Golden Spike Award for Isotopes 6.3 Chapter Summary Chapter 7. Fractionation Overview 7.1 Fractionation Fundamentals 7.2 Isotopium and Fractionation in Closed Systems 7.3 A Strange and Routine Case 7.4 A Genuine Puzzle — Fractionation or Mixing? 7.5 Cracking the Closed Systems 7.6 Equilibrium Fractionation, Subtle Drama in the Cold 7.7 A Supply/Demand Model for Open System Fractionation 7.8 Open System Fractionation and Evolution of the Earth's Sulfur Cycle 7.9 Open System Legacies 7.10 Conducting Fractionation Experiments 7.11 Chapter Summary Chapter 8. Scanning the Future Overview 8.1 The Isotope Scanner 8.2 Mangrove Maude 8.3 The Beginner's Advantage—Imagine! 8.4 Chapter Summary Appendix. Important Isotope Equations and Useful Conversions Index Supplemental Electronic Materials on the Accompanying CD A. Chapter 1 Color Figures and Cartoon Problems B. Chapter 2 Color Figures and Cartoon Problems Technical Supplement 2A: Measuring Spiked Samples Technical Supplement 2B: Ion Corrections Technical Supplement 2C: The Ratio Notation and The Power of 1 C. Chapter 3 Color Figures and Cartoons Problems D. Chapter 4 Color Figures and Cartoons Problems I Chi Spreadsheets E. Chapters 5 Color Figures and Cartoons Problems I Chi Spreadsheets F. Chapter 6 Color Figure and Cartoon Problems I Chi Spreadsheet Technical Supplement 6A: How Much Isotope Should I Add? Technical Supplement 6B: Noisy Data and Data Analysis with Enriched Samples G. Chapter 7 Color Figures and Cartoons Problems I Chi Spreadsheets Technical Supplement 7A: A Chemist's View of Isotope Effects Technical Supplement 7B: Derivations of Closed System Isotope Equations H. Chapter 8 Color Figures and Cartoons Problems I. All Problems for Chapters 1-8 J. All Answers to Problems for Chapters 1-8 K. All Figures and Cartoons L. All I Chi Spreadsheets M. A Reading List
    Location: Reading room
    Location: AWI Reading room
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    Branch Library: AWI Library
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  • 5
    Monograph available for loan
    Monograph available for loan
    Water from heaven : the story of water from the big bang to the rise of civilization, and beyond (2006)
    New York : Columbia University Press
    Details Availability
    Call number: M 11.0335
    Description / Table of Contents: Contents: Part 1. Water in the Universe: From the Big Bang to the Appearance of Man 1. Beginnings2. The Churning of the Earth3. Origin and Evolution of Life4. Cosmic Catastrophes5. Ice, Moon, and PlanetsPart 2: Water in Today's World 6. Water and Energy Cycles7. Winds, waves, and currents8. Water's deep memories9. Clouds, rain, and angry skies10. Earth's water, between sky and seaPart 3: Water in Human History: Past and Future 11. Water and Man's Rise to Civilization12. Problems for the 21st Century13. Butterflies and humans in a warming greenhouse14. Back to the ice age?15. The end of the story
    Type of Medium: Monograph available for loan
    Pages: XIII, 312 S. , ill., maps , 24 cm
    ISBN: 9780231122450
    Uniform Title: Eaux du ciel.
    Classification:
    Hydrology
    Language: English
    Location: Upper compact magazine
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  • 6
    Series available for loan
    Series available for loan
    Predicting the source strength of recycling materials within the scope of a seepage water prognosis by means of standardized laboratory methods (2005)
    Bremen : Fachbereich Geowiss., Univ.
    Associated volumes
    Details Availability
    Call number: ZSP-166(239)
    In: Berichte aus dem MARUM und dem Fachbereich Geowissenschaften der Universität Bremen
    Type of Medium: Series available for loan
    Pages: IV, 141 S.
    Series Statement: Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen 239
    Classification:
    Ecology
    Language: English
    Note: Zugl.: Bremen, Univ., Diss., 2005
    Location: Lower compact magazine
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