DOCSLIB.ORG

NEWS &Information

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
NEWS &Information NEWS &information IAH - THE WORLDWIDE GROUNDWATER ORGANISATION Furthering the understanding, wise use and protection of groundwater resources throughout the world MAY 2012 GREEN LIGHT THIS ISSUE INCLUDES: MEDIA FOCUS.............2 GIVEN TO MEETING REPORTS...4, 22 MENTORING IAH NEWS..................6 SCHEME WHYMAP RELEASE.......9 In the second half of 2011 IAH organised a survey to gauge its members’ COMMISSIONS ETC......11 interest in the idea of a mentoring scheme. Thank you to all those who responded - it is clear from the number of replies and comments received CHAPTERS.................14 that there is a potential demand. Full report and next steps on page 12. BOOK RELEASES.........19 OUT OF PRINT CONGRESS NEWS........23 BOOKS LISTINGS, COPY AND As a service to the groundwater The IAH LinkedIn group has now ADVERTISING............24 community, IAH’s out of print grown to just under 700 members books have been made freely - almost 200 members joining available to download. since we were drafting the last See http://www.iah.org/ newsletter. So now the next publications_library_popup.asp. challenge. Can we make it to 1000 members by our congress, One title is missing. We have just in September? That would be secured a copy of “Hydrogeology a quarter of our current IAH of Karstic Terrains, Case Histories membership. (1984)” Burger and Dubertret. This will be scanned and uploaded Follow link on IAH’s home page to soon. Our thanks go to Geoff join the group. Wright in Ireland for helping us out. INTERNATIONAL Keep up to date: visit our Contact us: email [email protected] ASSOCIATION OF website for the latest news with your news, views http://www.iah.org or questions HYDROGEOLOGISTS MAY 2012 1 MEDIA FOCUS A selection of groundwater features from around the world “Water resources are under pressure in many parts of Europe, and it is getting worse” Europe needs to redouble efforts in using water more efficiently to avoid undermining its economy, according to a new report from the European Environment Agency (EEA). Inefficient water use impacts hard on the resources needed by ecosystems and people, both vital assets for European productivity and security. The report ‘Towards Efficient use of water resources in Europe’ makes the case for integrated water management, starting with better implementation of existing legislation. 19 March 2012, European Environment Agency http://www.eea.europa.eu/pressroom/newsreleases/europe-needs-to-use-water China - “Bid to save water under the ground” Northeast China’s Liaoning province is poised to implement the most stringent regulations in its history to address the over-exploitation of groundwater. Liaoning provincial government announced that it will strengthen administration of groundwater use. These regulations are mainly focused on limiting the total use of groundwater and increasing water-use efficiency. By 2015, the province will shut down all of the region’s underground water projects except for those used in emergencies, according to a plan made by local authorities. A total of nearly 3,800 existing projects will be closed, which will prevent the extraction of more than 1.2 billion cubic meters of groundwater in the following years. Official data show that Liaoning has had a shortage of water supply for long and its annual extraction of groundwater is greater than most Chinese provinces and has reached 6.74 billion cubic meters. The rapid depletion of groundwater has severe consequences, including saltwater intrusion and sinkholes. Take Dalian, a port city in the province, for example. Overuse of water has caused salt water to intrude into local groundwater, which has led to contamination of drinking water. Experts have yet to find a solution. Liaoning is not the only place in China that suffers from groundwater over-exploitation. Early this January, the China Geological Environmental Monitoring Institute published a report saying groundwater over-exploitation and the subsequent decay are mainly responsible for geological dangers in eastern and central China. But experts argue that enforcing these measures is rather hard, though leaders at various levels will be held accountable. “Local governments are asked to reduce water consumption and simultaneously develop their economies without further depleting the groundwater table. This is very challenging,” said Ma Jun, director of the Institute of Public and Environmental Affairs, a non-governmental organization. Experts suggest that follow-up work needs to be carried out to make the proposed measures more effective. “We cannot sacrifice the environment for money. But the government should do more work to help industries to adapt to the change rather than imposing rigid regulations,” said economics professor Shao Jianbing of Liaoning University. 2 February 2012, China Daily http://www.chinadaily.com.cn/cndy/2012-02/02/content_14521857.htm 2 “UAE bans export of groundwater” “Peru’s cash crop, asparagus, is bleeding key region Abu Dhabi: The Ministerial Service Council has dry” banned the export of groundwater due to a decline Peru has recently become the world’s number one in its levels in the country. The move came upon a exporter of asparagus, sending the green vegetable recommendation from the Federal National Council to places in Europe and the United States. The boom (FNC) following a study carried out by the Ministry of there has pumped a lot of money into the economy, Environment and Water. The study shows a decline but it’s also pumped out a lot of water. in underground water and the depletion of water resources as a result of exports. “The agro-exporters starting from 1995 intensively were overdrafting the aquifer, pumping water up “Water more important to country than oil” and out,” said David Bayer, a local water activist who first came to Peru in 1964. He said the Peruvian Last year, General Shaikh Mohammad Bin Zayed government, with the support of the U.S. and the Al Nahyan, Crown Prince of Abu Dhabi and Deputy World Bank, pushed asparagus cultivation for export. Supreme Commander of the UAE Armed Forces, Companies were allowed to irrigate their crops with called for placing the issue of water scarcity at the top water pumped up from the aquifer, for only the cost of of the UAE’s national agenda. He recently said water is building and operating wells. Basically, they got free more important than oil in the UAE. This is a bold and water. “And they also took over the equivalent, in the clear signal that an economy based on oil is placing case of the Ica Valley, the equivalent of virtually 40 water at the top of its priorities. percent, 45 percent of the land,” Bayer said. 23 Feburary 2012, Gulf News 24 January 2012, PRI (Public Radio International) http://wwww.gulfnews.com http://www.pri.org The inaugural HeadsUP! competition, founded by also Leonard Konikow’s (USGS, and IAH VP for North Peggy Weil and produced in collaboration with America) Global Groundwater Depletion Rates 1900- Visualising.org, challenged designers to visualise 2008. Combining 8 different methods of estimation, groundwater levels with the winning visualisation this data set presents the average rate of groundwater being displayed on Times Square 2, Thomson depletion for 50+ major water systems around the Reuters/NASDAQ digital signboards in Times Square, world. Estimated depletion rates are given in cubic New York. This was the first of a series of challenges kilometers / year, by decade from 1900 – 2008. The to be implemented across a range of physical and water systems included are aquifers, regions, and mobile media. regional summaries (including global totals). The winning animation was designed and made Lenny tells us that he went up to New York for the by Richard Vijgen, aiming to show on one hand the initial display and attended a small reception hosted beauty and overwhelming complexity of the natural by Thompson-Reuters. “Lots of fun”. cycle of wet and dry seasons, and on the other hand to highlight the challenge of carefully managing our use To find out more go to http://headsuptimessquare. of groundwater. com, which has full background information and interviews. IAH plans to host the animation on its Data for the visualisation were obtained from NASA’s website; more news will follow soon. GRACE mission (provided by Jay Famiglietti) and MAY 2012 3 Report by Shammy Puri, IAH Secretary General IAH AT MARSEILLE Re ections from the sixth World Water Forum Since the Kyoto World Water Forum in 2003, where IAH exhibits, it all becomes more than a little daunting, had a truly large representation and made a mighty effort except for the strong hearted! With some early to highlight ‘groundwater’ in the gobal water agenda, planning, and ensuring that meeting appointments are we have seen a steady increase in the recognition of made with key people before the start of the Forum, this natural resource. With this recognition, the views of useful networking is possible with those with whom hydrogeologists are also being sought more than they IAH members would not normally meet. From this were in the past. Perhaps we as an Association can claim perspective, it is good to be present at these fora and to some credit for this? IAH representatives participated ensure that the voice of the professional hydrogeologist in the two subsequent Fora, in Mexico in 2006 and can be heard – particularly as there still remains Istanbul in 2009. The most recent, the Sixth World Water considerable misunderstanding and poor awareness of Forum (March 12 - 16 2012) was no exception and IAH the many facets of sound groundwater management. was involved in a number of sessions, some convened The overall impression of the Forum was that water directly by IAH and others in which members made and all aspects of water management are now major significant contributions.
Load more

Recommended publications
  • Record of Discussion of Proposed Study
    NRC Publications Archive Archives des publications du CNRC Record of Discussion of Proposed Study on Collection of Water by House Foundation Drainage Tile (With Selected Annotated Bibliography on "Water Collection of Drain Tiles" Compiled by R.T. Sumi and T.H. Birtch, DBR/NRC.) Hansen, A. T. For the publisher’s version, please access the DOI link below./ Pour consulter la version de l’éditeur, utilisez le lien DOI ci-dessous. Publisher’s version / Version de l'éditeur: https://doi.org/10.4224/20338390 Technical Note (National Research Council of Canada. Division of Building Research), 1967-04-01 NRC Publications Record / Notice d'Archives des publications de CNRC: https://nrc-publications.canada.ca/eng/view/object/?id=c18b886a-7d4f-42d2-8fc5-e57091d580d9 https://publications-cnrc.canada.ca/fra/voir/objet/?id=c18b886a-7d4f-42d2-8fc5-e57091d580d9 Access and use of this website and the material on it are subject to the Terms and Conditions set forth at https://nrc-publications.canada.ca/eng/copyright READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE. L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux conditions présentées dans le site https://publications-cnrc.canada.ca/fra/droits LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D’UTILISER CE SITE WEB. Questions? Contact the NRC Publications Archive team at [email protected]. If you wish to email the authors directly, please see the first page of the publication for their contact information. Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées.
    [Show full text]
  • NEWS &Information
    NEWS &information IAH - THE WORLD-WIDE GROUNDWATER ORGANISATION Furthering the understanding, wise use and protection of groundwater resources throughout the world MAY 2014 OPEN CHOICE FOR OUR Also in this issue: HYDROGEOLOGY JOURNAL? Congress latest Book releases Income diversi cation Chapter, commission and network news Media focus New members Conference listings Global scientific publishing is evolving fast and we are grateful for our and the usual IAH regular opportunities to discuss this changing world with our journal publisher Springer. Recent conversations suggest that we now need to announcements and consider allowing Open Choice for Hydrogeology Journal. See page 6 updates IAH AND EDUCATION - WORLD WATER DAY HAVE YOUR SAY REPORTS Many of IAH’s core John Chilton activities relate reports from a to educational collaborative development, meeting held including our academic journal, our in London and reflects upon this books series and our congresses. year’s World Water Day theme, IAH has been considering future and how it might concern those in efforts; your opinions will help us groundwater related professions. to prioritise and plan. Page 5 Page 8 INTERNATIONAL Keep up to date: visit our Contact us: email [email protected] ASSOCIATION OF website for the latest news with your news, views http://iah.org or questions HYDROGEOLOGISTS MAY 2014 1 Forthcoming in the IAH Book Series Selected Papers on Hydrogeology (IAH-SP) Series editor Nick S. Robins, `1. VQCQ$1H:C%`0V75:CC1J$`Q`R5 Fractured Rock Hydrogeology Edited by John M. Sharp, Jr., .VJ10V`1 7Q`V6:5 %J5 .1 0QC%IV RV:C 11 . .V V0QC%QJ 1J .Q%$.
    [Show full text]
  • Dealing with Spatial Heterogeneity
    Dealing with spatial heterogeneity Gh. de Marsily · F. Delay · J. Gonalvs · Ph. Renard · V. Teles · S. Violette Abstract Heterogeneity can be dealt with by defining Rsum On peut aborder le problme de l’htrognit homogeneous equivalent properties, known as averaging, en s’efforant de dfinir une permabilit quivalente or by trying to describe the spatial variability of the rock homogne, par prise de moyenne, ou au contraire en d- properties from geologic observations and local mea- crivant la variation dans l’espace des proprits des ro- surements. The techniques available for these descriptions ches à partir des observations gologiques et des mesures are mostly continuous Geostatistical models, or discon- locales. Les techniques disponibles pour une telle des- tinuous facies models such as the Boolean, Indicator or cription sont soit continues, comme l’approche Gosta- Gaussian-Threshold models and the Markov chain model. tistique, soit discontinues, comme les modles de facis, These facies models are better suited to treating issues of Boolens, ou bien par Indicatrices ou Gaussiennes rock strata connectivity, e.g. buried high permeability Seuilles, ou enfin Markoviens. Ces modles de facis channels or low permeability barriers, which greatly af- sont mieux capables de prendre en compte la connectivit fect flow and, above all, transport in aquifers. Genetic des strates gologiques, telles que les chenaux enfouis à models provide new ways to incorporate more geology forte permabilit, ou au contraire les facis fins de bar- into the facies description, an approach that has been well rires de permabilit, qui ont une influence importante developed in the oil industry, but not enough in hydro- sur les coulement, et, plus encore, sur le transport.
    [Show full text]
  • Seawater Intrusion in Coastal Aquifers
    Seawater Intrusion in Coastal Aquifers Concepts, Methods and Practices Editors J. Bear A. H.-D. Cheng S. Sorek D. Ouazar I. Herrera Kluwer Academic Publishers 1999 Contents Preface vii List of Contributors ix 1 Introduction 1 1.1 FreshwaterResources.................. 1 1.2 HistoricalDevelopment................. 2 1.3 OrganizationoftheBook............... 5 2 Geophysical Investigations 9 2.1 Introduction....................... 9 2.2 SurfaceGeophysicalMethods............. 13 2.3 BoreholeMethods.................... 42 2.4 IntegratedGeophysicalSurveys............ 47 2.5 Summary........................ 50 3 Geochemical Investigations 51 3.1 Introduction....................... 51 3.2 World-WidePhenomena................ 52 3.3 Chemical Modifications................ 57 3.4 Mixing.......................... 60 3.5 Water-RockInteraction................ 60 3.6 IntrusionofFossilSeawater.............. 68 3.7 Criteria to Distinguish Saltwater Intrusions . 69 4 Exploitation, Restoration and Management 73 4.1 Introduction....................... 73 4.2 Optimal Exploitation of Fresh Groundwater in Coastal AquiferSystems..................... 81 ii Contents 4.3 Measures to Restore Disturbed Fresh Groundwater SystemsinCoastalAquifers..............105 4.4 Groundwater Management . 117 5 Conceptual and Mathematical Modeling 127 5.1 Introduction.......................127 5.2 Three-Dimensional Sharp Interface Model (3DSIM) . 131 5.3 Two-Dimensional Sharp Interface Model (2DSIM) . 145 5.4 TransitionZoneModel(3DTZM)...........151 5.5 Conclusion........................161
    [Show full text]
  • Adams Booklet 2018
    ADAMS SEMINAR 2018 סמינר אדמס תשע“ח adams.academy.ac.il Adams Seminar 2018 סמינר אדמס תשע“ח Guest Lecturer Professor Peretz Lavie Professor of Biological Psychiatry President of the Technion - Israel Institute of Technology Prof. Peretz Lavie President Technion-Israel Institute of Technology Prof. Peretz Lavie joined the Technion Rappaport Faculty of Medicine in 1975 where he served as Dean from 1993-1999. In 2001 he was appointed as the Vice President of External Relations and Resource Development. Since October 1st 2009 Prof. Lavie has been serving as President of the Technion. In the summer of 2017, he assented to a request by the Technion Council to extend his term in office for another two years. In doing so he became the first President in the history of Technion to be elected for a third term and will serve a total of ten years in office. Under his leadership the Technion stands among the top 100 world class research universities, distinguished by academic excellence, interdisciplinary research strategy, innovative globalization and financial stability. During his tenure, the Technion has recorded a number of impressive achievements led by the recruitment of more than 200 new faculty members, which involved raising extensive resources. By establishing the “Yanai Prize”in academic education, Prof Lavie has led a transformational change in the quality of teaching on campus and in student satisfaction. Prof Lavie conceived and played a principal role in the Technion's expansion to New York where, together with Cornell University, the Jacobs Technion Cornell Institute was opened on Roosevelt Island. Similarly, in China the Technion established the Guangdong Technion-Israel Institute of Technology in Shantou.
    [Show full text]
  • Evaluation of Predictive Subsurface Transport Models – How to Compare?
    Geophysical Research Abstracts Vol. 21, EGU2019-17637, 2019 EGU General Assembly 2019 © Author(s) 2019. CC Attribution 4.0 license. Evaluation of Predictive Subsurface Transport Models – How to compare? Alraune Zech (1), Sabine Attinger (2), Alberto Bellin (3), Vladimir Cvetkovic (4), Gedeon Dagan (5), Peter Dietrich (1), Aldo Fiori (6), and Georg Teutsch (1) (1) Utrecht University, Utrecht, Netherlands ([email protected]), (2) Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany, (3) University of Trento, Trento, Italy, (4) Royal Institute of Technology, Stockholm, Sweden, (5) Tel Aviv University, Tel Aviv, Israel, (6) University Rome Three, Rome, Italy Subsurface transport models are valuable tools to predict the behavior of solutes in groundwater, e.g. after a spill event or of controlled tracer experiments. Solute movement does not only depend on the mean flow velocity, but its spreading is strongly influenced by the spatially variable distribution of hydraulic conduc- tivity i.e. on heterogeneity. The prevailing lack of transport data at the given site usually prevents model calibration. Thus, there is a need for predictive models based on knowledge of the subsurface structure. A multitude of aquifer heterogeneity conceptualizations exist, from deterministic hydraulic conductivity structures to stochastic and geostatistical approaches such as Multi-Gaussian or multi-indicator models. These concepts have been applied to model tracer distribution patterns of controlled field-scale transport experiments at a few sites. One of
    [Show full text]
  • Lagrangian Analysis of Transport in Heterogeneous Formations Under
    WATER RESOURCES RESEARCH, VOL. 32, NO. 4, PAGES 891-899, APRIL 1996 Lagrangian analysis of transport in heterogeneousformations under transient flow conditions Gedeon Dagan Faculty of Engineering,Tel Aviv University,Tel Aviv, Israel Alberto Bellin Dipartamento di IngegneriaCivile ed Ambientale, Universita di Trento, Trent, Italy Yoram Rubin Department of Civil Engineering,University of California, Berkeley Abstract. The coupledeffects of porousmedia heterogeneityand flow unsteadinesson transportare investigated.We addressthe problemusing a stochastic-Lagrangian approach.The log condictivityis modeled as a spacerandom function;however, the flow unsteadinessis consideredas deterministic,and it affectsthe magnitudeand directionof the mean head gradient.Using a first-ordersolution in terms of the log conductivity variance,we developeda three-dimensionalsolution that includesthe velocitycovariances, the macrodispersioncoefficients, and the displacementtensor, all as a function of the media heterogeneityand the unsteadymean flow parameters.The model is appliedto the caseof a periodicvariation in the flow direction.We showthat the effectsof unsteadiness on the longitudinalspread are insignificant,while it affectsstrongly the transversespread, in the form of an addedconstant dispersivity. Results obtained in previousstudies are discussedand are shownto be particular casesof the presentresults. 1. Introduction and Brief Discussion of and Zhang [1990] and of Zhang and Neuman [1990], who Previous Work obtained a quasi-linearapproximation of the
    [Show full text]
  • Analytical Modeling of Flow and Transport in Highly
    Universita` degli Studi di Roma Tre Faculty of Engineering Dipartimento di Scienze dell’Ingegneria Civile - DSIC Scuola Dottorale in Scienze dell’Ingegneria Civile PhD Thesis Analytical modeling of flow and transport in highly heterogeneous anisotropic porous formations Candidate: Supervisor: Antonio Zarlenga Prof. Aldo Fiori Coordinator: Prof. Leopoldo Franco Ciclo Dottorale XXIV . i . Collana delle tesi di Dottorato di Ricerca In Scienze dell'Ingegneria Civile Universit`adegli Studi Roma Tre Tesi n◦ 35 ii . iii Acknowledgements I'm really grateful to Prof. Aldo Fiori, working with him is an amazing ex- perience. I thank Prof. Igor Jankovi´c and Prof. Gedeon Dagan for their significant contribute to this work. I want to thank Prof. Guido Calenda, Prof. Elena Volpi, and Prof. Corrado Mancini who supproted me in this work. I'm really grateful to Elisa and to my friends, Claudia, Francesca, Alessandro, Federico, Michele, Pietro and the other people with whom I spent my life. I thank my Parents and my Family. iv . v Sommario Il flusso e il trasporto in formazioni porose tridimensionali, eterogenee e anisotrope sono studiati mediante lo sviluppo di modelli analitici. Lo scopo del lavoro `el'estensione a formazioni anisotrope del modello Auto-Coerente precedentemente sviluppato per mezzi isotropi (Dagan et al., 2003; Fiori et al., 2003; Fiori et al. 2006). L'approccio Euleriano e Lagrangiano sono utiliz- zati per lo studio delle propriet`a,rispettivamente, del flusso e del trasporto di un soluto inerte. I risultati del modello Auto-Coerente (SC) sono stati comparati con quelli ottenuti attraverso il modello al primo ordine (FO) e con accurate simulazioni numeriche (NS).
    [Show full text]
  • ORNL/TM- 13443 Center for Computational Sciences
    ORNL/TM- 13443 Center for Computational Sciences GRAND CHALLENGE PROBLEMS IN ENVIRONMENTAL MODELING AND R€CMEDIATION: GROUNDWATER CONTAMINANT TRANSPORT FINAL PROJECT REPORT 1998 Partnership in Computational Sciences Consortium * * Cer ter for Computational Sciences Bldg 4500N, MS 6203 Oak Ridge National Laboratory Oak Ridge, TN 37831. Date Published: April 1998 r- I The submitted nianuscript has been authored .by a contractor of the U.S. Government under contract No. DEAC05-960R22464. Ac- cordingly, the U .S. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribu- tion, or allow others to do so, for U.S. Government purposes. Prepared by the Oak Ridge National Laboratory Oak Ridge, Tennessee 37831 managed by Loekheed Martin Energy Research Corp. for the 1J.S. DEPARTMENT OF ENERGY under Contract No. DE-AC05-960R22464 s DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, corripleteness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would riot infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.
    [Show full text]
  • Transport and Mass Exchange Processes in Sand and Gravel Aquifers: Field and Modelling Studies
    — AECL--10308 ( ) , CA9300978-CA9300997 A- ■■ ' AECL AECL Research Transport and Mass Exchange Processes in Sand and Gravel Aquifers: Field and Modelling Studies G. Moltyaner, Editor Observed 146 </> «144 £ 0142 h Simulated a m o lu 138 136 30 25 metres from source Percent of Input Concentration H H 10-30 ■ 130-50 ■ 150-70 iZZl70-90 M 90-11C Twin Lake Tracer Test Proceedings of the International Conference and Workshop held in Ottawa, Canada October 1 - 4,1990 AECL-10308 Volume 1 Volum e 1 Transport and Mass Exchange Processes in Sand and Gravel Aquifers: Field and Modelling Studies G. Moltyaner, Editor Proceedings of the International Conference and Workshop held in Ottawa, Canada October 1 - 4,1990 CONFERENCE PROGRAM COMMITTEE CONFERENCE CO-SPONSORS Dr. Greg Moltyaner, Me Denis R. LeBlanc AECL Research, Chalk River Laboratories Chairperson U.S. Geological Survey Atomic Energy Control Board Chalk River Laboratories Dr. Chack Lee Electric Power Research Institute Dr. Gedeon Dagan Ontario Hydro Japan Atomic Energy Research Institute Tel-Aviv University National Water Research Institute Dr. Ghislain de Marsily Dr. David L Freyberg Université Piene et Marie Curie Ontario Hydro Stanford University State of Baden - Württemberg Dr. David A. McIntosh U.S. Department of Energy Dr. EmilO. Frind Electrical Power Research Institute U.S. Environmental Protection Agency University of Waterloo Ml Douglas E. Metcalfe U.S. Geological Survey Dr. Stephen P. Garabedian Atomic Energy Control Board U.S. Geological Survey American Geophysical Union Dr. Fred J. Molz Dr. Lynn W. Gelhar Auburn University International Association for Hydraulic Research Massachusetts Institute of Technology Dr. Shlomo P.
    [Show full text]
  • Stochastic Modeling of Diffusivity and Constant-Rate Pumping Tests in Heterogeneous Aquifers in a Tomographic Setup and Its Application to Field Measurements
    EGU21-2680, updated on 30 Sep 2021 https://doi.org/10.5194/egusphere-egu21-2680 EGU General Assembly 2021 © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License. Stochastic Modeling of Diffusivity and Constant-Rate Pumping Tests in Heterogeneous Aquifers in a Tomographic Setup and Its Application to Field Measurements Kan Bun Cheng, Gedeon Dagan, and Avinoam Rabinovich Tel Aviv University, Mechanical Engineering, Tel Aviv, Israel ([email protected]) Characterization of spatially variable aquifer properties is a necessary first step towards modeling flow and transport. An emerging technique in hydraulic tomography, known as diffusivity tests, consist of injecting (or pumping) a volume of water through short segments of a well for a short time and measuring the travel time of the peak of the head signal at different points in the surrounding aquifer volume. In our stochastic model, the specific storage is assumed to be constant, while the hydraulic conductivity of the heterogeneous aquifer is modeled as a random lognormal field. The axi-symmetric anisotropic structure is characterized by a few parameters (logconductivity mean and variance and horizontal and vertical integral scales). The mean and variance of the peak travel time are then determined as a function of distance from an instantaneous source by solving the flow equation using a first-order approximation in the logconductivity variance. The mean travel time is recast in terms of the equivalent conductivity, which decreases from the harmonic mean near the source to the effective conductivity in uniform flow for a sufficiently large distance. Similarly, the variance drops from its maximum near the source to a small value.
    [Show full text]
  • IHP Catalogue of Publications, 1999
    INTERNATIONAL HYDROLOGICAL PROGRAMME IHP Catalogue of Publications 19.99 International Hydrological Programme UNESCO/Division of Water Sciences 1, rue Miollis 75732 Paris Cedex 15, France Tel: +33 1 45 68 40 01 Fax: +33 145 68 58 11 E-mail: [email protected] Website: http://www.pangea.org/orgs/unesco/ UNESCO, Paris 1999 The designations employed and the presentation of material throughout the publication do not imply the expression of any opinion whatsoever on the part of UNESCO concerning the legal status of any country, territory, city or of its authorities, or concerning the delimitation of its frontiers or boundaries. Page SECTIONS I Studies and Reports in Hydrology 1 II Technical Documents in Hydrology 7 III International Hydrology Series 25 IV IHP Humid Tropics Programme Series 29 V IHP Non-Serial Publications in Hydrology 33. VI Documents of Administrative Sessionsof 41 Various IHP Intergovernmental Bodies VII Co-Edition IAHS / UNESCO 43 VIII Co-Edition IAH / UNESCO 47 IX Documents and Reports in Hydrology 49 Published by the UNESCO Regional Offices X Technical Papers in Hydrology (Terminated Series - Out of Print) 53 XI Waterway (IHP Newsletter) 55 ANNEXES A How to Order UNESCO Publications 57 B UNESCO Regional Offices 59 C National Distributors of UNESCO Sales Publications 61 SC-99iWSl23 Studies and Reports in Hydrology I Available Titles 0 N”5. Discharge of selected rivers of the 0 N”30. Pollution et protection des aquiferes. worldlDtfbits de certains tours d’eau du President et directeur de publication: R.E. mondelCaudal de algunos rios de1 mundo. Jackson. UNESCO, 1986. 436 p., fig., tabl.
    [Show full text]