TY - THES A1 - Ewusi, Anthony T1 - Groundwater exploration and management using geophysics: northern region of Ghana KW - Ghana KW - Grundwasser KW - Hydrologie KW - Geophysik KW - Geophysikalische Methode KW - 2-D elektrische Widerstandskartierung KW - Elektrokinetisches Verfahren KW - Radon-Kartierung Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:co1-opus-378 ER - TY - THES A1 - Schlüter, Henrik T1 - Ermittlung des nachhaltig nutzbaren Grundwasserdargebots in stark genutzten Teileinzugsgebieten - Beurteilung des mengenmäßigen Zustandes gemäß EU Rahmenrichtlinie Wasser KW - Grundwasser KW - Nutzung KW - Grundwasserbewirtschaftung KW - Wasserrahmenrichtlinie KW - Simulationsmodelle Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:co1-opus-102 ER - TY - GEN A1 - Herrmann, Frank A1 - Jahnke, Christoph A1 - Jenn, Florian A1 - Kunkel, Ralf A1 - Voigt, Hans-Jürgen A1 - Voigt, Jens A1 - Wendland, Frank T1 - Groundwater recharge rates for regional groundwater modelling: a case study using GROWA in the Lower Rhine lignite mining area, Germany N2 - Abstract: Groundwater recharge rates calculated with the GROWA model have been applied as the recharge boundary condition for the regional groundwater model Rurscholle. This model simulates groundwater dynamics in the Pleistocene aquifers of the Lower Rhine lignite mining area (Germany). GROWA uses an area-differentiated approach to calculate recharge rates depending on runoff-relevant site characteristics, which are represented by a set of baseflow indices. The regional accuracy of the coupled groundwater and GROWA models has been checked using groundwater hydrographs as validation criteria. The results suggest that the current (unadjusted) version of GROWA underestimates the regional groundwater recharge rate by 10-20 mm/yr. The comparative analysis identified areas where recharge calculations could be improved by adjusting the baseflow indices for areas where runoff is dominated by slope, low water-logging and a low degree of sealing. Using the adjusted set of baseflow indices, the mean groundwater recharge rate of the Rurscholle region was modelled as approx. 170 mm/yr. This study highlights the benefit of using a coupled approach and being able to independently calibrate and validate groundwater recharge boundary conditions in regional groundwater models. KW - GROWA KW - Groundwater recharge/water budget KW - Mining KW - Numerical modeling Y1 - 2009 ER - TY - GEN ED - Voigt, Hans-Jürgen ED - Kaufmann-Knoke, Ruth ED - Jahnke, Christoph ED - Herd, Rainer T1 - Indikatoren im Grundwasser - Tagung der Fachsektion Hydrogeologie in der DGG, Cottbus, 24.-28.05.2006 N2 - Kurzfassungen der Vorträge und Poster Tagung der Fachsektion Hydrogeologie in der Deutschen Gesellschaft für Geowissenschaften (FH-DGG), Cottbus, 24.-28.05.2006 KW - FH-DGG KW - Grundwasser KW - Hydrogeologie KW - Indikatoren Y1 - 2006 SN - 3-932537-39-4 PB - Deutsche Gesellschaft für Geowissenschaften CY - Hannover ER - TY - BOOK A1 - Knödel, Klaus A1 - Lange, Gerhard A1 - Voigt, Hans-Jürgen A1 - Bohn, Antje A1 - Jenn, Florian A1 - Liese, Manja A1 - Nagare, Ranjeet A1 - Nitsche, Claus A1 - Petzold, Hellfried A1 - Radschinski, Jens T1 - Environmental Geology - Handbook of Field Methods and Case Studies N2 - This handbook describes a broad spectrum of methods in the fields of remote sensing, geophysics, geology, hydrogeology, geochemistry, and microbiology designed to investigate landfill, mining and industrial sites. The descriptions provide information about the principle of the methods, applications and fundamentals. There is also coverage of the instruments, survey practice, processing and interpretation of the data, quality assurance, personnel, equipment, time needed, and examples, as well as references and sources for further reading.Furthermore, this handbook deals with the stepwise procedure for investigating sites and common problems faced in efficient implementation of field operations. It can be used as a practical guide for training students, as well as to illustrate the advantages of interdisciplinary site investigations to decision-makers faced with their own environmental investigations. KW - environmental geology KW - geochemistry KW - geophysics KW - remote sensing KW - site investigation Y1 - 2007 SN - 978-3-540-74669-0 PB - Springer CY - Berlin [u.a.] ER - TY - CHAP A1 - Voigt, Hans-Jürgen A1 - Nitsche, Claus A1 - Tamás, János A1 - Biró, Tibor A1 - Broers, Hans Peter A1 - Kozel, Ronald ED - Candela, Lucila T1 - Strategies and effectiveness of groundwater monitoring systems for different aims T2 - Advances in Subsurface Pollution of Porous Media - Indicators, Processes and Modelling, Barcelona, 2007 KW - groundwater KW - monitoring KW - EU COST629 Y1 - 2008 SN - 978-0-415-47690-4 SP - 95 EP - 103 PB - CRC Press, Balkema CY - Boca Raton, Fla. [u.a.] ER - TY - JOUR A1 - Tesmer, Maja A1 - Moller, P. A1 - Wieland, S. A1 - Jahnke, Christoph A1 - Voigt, Hans-Jürgen A1 - Pekdeger, Asaf T1 - Deep reaching fluid flow in the North East German Basin: origin and processes of groundwater salinisation N2 - Major element chemistry, rare-earth element distribution, and H and 0 isotopes are conjointly used to study the sources of salinisation and interaquifer flow of saline groundwater in the North East German Basin. Chemical analyses from hydrocarbon exploration campaigns showed evidence of the existence of two different groups of brines: halite and halite Ca-Cl brines. Residual brines and leachates are identified by Br-/Cl- ratios. Most of the brines are dissolution brines of Permian evaporites. New analyses show that the pattern of rare-earth elements and yttriurn (REY) are closely linked to H and O isotope distribution. Thermal brines from deep wells and artesian wells indicate isotopically evaporated brines, which chemically interacted with their aquifer environment. Isotopes and rare-earth element patterns prove that cross flow exists, especially in the post-Rupelian aquifer. However, even at depths exceeding 2,000 m, interaquifer flow takes place. The rare-earth element pattern and H and O isotopes identify locally ascending brines. A large-scale lateral groundwater flow has to be assumed because all pre-Rupelian aquifer systems to a depth of at least 500 m are isotopically characterised by Recent or Pleistocene recharge conditions. KW - hydrochemistry KW - rare-earth elements KW - stable isotopes KW - hydrostratigraphy KW - brines Y1 - 2007 ER - TY - JOUR A1 - Voigt, Hans-Jürgen A1 - Jenn, Florian A1 - Nitsche, Claus T1 - European strategies of groundwater monitoring for different aims N2 - Groundwater monitoring systems play an important role in the implementation of the EU WaterFramework Directive. Concerning the objectives of groundwater monitoring systems, two types are distinguished:surveillance and operational. The objectives and the strategy of realisation of both types are discussed. KW - groundwater KW - monitoring strategy KW - EU-WFD KW - EU-WRRL Y1 - 2008 UR - http://www.geo.lt/geo/uploads/media/63-70_01.pdf ER - TY - BOOK A1 - Voigt, Hans-Jürgen A1 - Würck, Stefan A1 - Jenn, Florian A1 - Bethge, Christian A1 - Nitsche, Claus A1 - Michel, Rickmann A1 - Kast, Gerhard ED - Wünsch, André ED - Hahn, Sabine T1 - Praxiserprobte und innovative Direkt/in-situ-Probenahmeverfahren für Grund-, Sickerwasser, Schadstoffphase und Bodenluft im Rahmen der Altlastenbearbeitung - Feldversuch Elsterwerda, Saugkerzeneinsatz N2 - Altlastenbearbeitung im Land Brandenburg ; 17 KW - Altlasten KW - Bodenwasser KW - Sicherwasser KW - Bodenluft KW - Probenahme KW - Saugkerzen Y1 - 2009 UR - http://www.mugv.brandenburg.de/cms/media.php/lbm1.a.2334.de/labo_nr17.pdf PB - Potsdam : MLUV Brandenburg ER - TY - JOUR A1 - Kunkel, Ralf A1 - Wendland, Frank A1 - Hannappel, Stephan A1 - Voigt, Hans-Jürgen A1 - Wolter, R. T1 - The influence of diffuse pollution on groundwater content patterns for the groundwater bodies of Germany JF - Water Science and Technology N2 - Commissioned by Germany's Working Group of the Federal States on Water Problems (LAWA) the authors developed a procedure to define natural groundwater conditions from groundwater monitoring data. The distribution pattern of a specific groundwater parameter observed by a number of groundwater monitoring stations within a petrographically comparable groundwater typology is reproduced by two statistical distribution functions, representing the "natural" and "influenced" component. The range of natural groundwater concentrations is characterized by confidence intervals of the distribution function of the natural component. The applicability of the approach was established for 17 hydrochemical different groundwater typologies occurring throughout Germany. Based on groundwater monitoring data from ca. 26,000 groundwater-monitoring stations, 40 different hydrochemical parameters were evaluated for each groundwater typology. For all investigated parameters the range of natural groundwater concentrations has been identified. According to the requirements of the EC Water Framework Directive (article 17) (WFD) this study is a basis for the German position to propose criteria for assessing a reference state for a "good groundwater chemical status". KW - groundwater KW - diffuse pollution KW - Germany Y1 - 2007 SN - 0273-1223 SN - 1996-9732 VL - 55 IS - 3 SP - 97 EP - 105 ER - TY - BOOK A1 - Liese, Manja A1 - Nagare, Ranjeet A1 - Jahnke, Christoph A1 - Voigt, Hans-Jürgen ED - Heinzmann, Bernd ED - Dlubek, Heidi T1 - 12 Jahre Pilotbetrieb Karolinenhöhe - zusammenfassende Auswertung KW - Grundwasser KW - Rieselfelder KW - Karolinenhöhe Y1 - 2007 UR - http://www.kompetenz-wasser.de/index.php?id=429%26type=0%26jumpurl=fileadmin/user_upload/pdf/downloads/Schriftenreihe_KWB_Band8_webversion_gesichert.pdf SN - 978-3-9811684-2-6 PB - Berlin : Kompetenzzentrum Wasser Berlin ER - TY - GEN A1 - Wendland, Frank A1 - Berthold, Georg A1 - Fritsche, Johann-Gerhard A1 - Herrmann, Frank A1 - Kunkel, Ralf A1 - Voigt, Hans-Jürgen A1 - Vereecken, Harry T1 - A conceptual hydrogeological model for evaluating residence times in Hessen KW - Conceptual hydrogeological model KW - Residence times KW - EU-WFD KW - Large-scale model KW - Hessen Y1 - 2011 ER - TY - THES A1 - Merz, Christoph T1 - Process based regional modelling of water and solute fluxes in Pleistocene aquifer systems - Implications for water management strategies under pressure of global change KW - modelling KW - water fluxes KW - solute fluxes KW - Pleistocene KW - aquifer systems KW - water management KW - global change Y1 - 2010 UR - http://z2.zalf.de/oa/85bb81c7-28c4-4dc2-b18c-461f94f0ba64.pdf ER - TY - THES A1 - Radny, Dirk T1 - Vorhersage der Stationarität einer BTEX-Schadstofffahne im Geländemaßstab KW - Stationarität KW - BTEX KW - Schadstofffahne Y1 - 2010 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:83-opus-26471 PB - Technische Universität CY - Berlin ER - TY - THES A1 - Kolarov, Dimitar T1 - Geophysikalische Untersuchungen zur Verkehrssicherheit auf ehemaligen militärischen Liegenschaften KW - geophysikalische Untersuchungen KW - Verkehrssicherheit KW - militärische Liegenschaften Y1 - 2004 ER - TY - THES A1 - Müller, Mike T1 - Modellierung von Stofftransport und Reaktionen mit einem neuentwickelten, gekoppelten Grund- und Oberflächenwassermodell am Beispiel des Tagebaurestsees KW - Modellierung KW - Stofftransport KW - Grundwassermodell KW - Oberflächenwassermodell KW - Tagebaurestsee Y1 - 2003 ER - TY - THES A1 - Merten, Oliver T1 - Versauerungserscheinungen in quartiären Lockergesteins-Grundwasserleitern unter besonderer Berücksichtigung atmosphärischer Stoffeinträge KW - Versauerungserscheinungen KW - Lockergesteins-Grundwasserleiter KW - atmosphärische Stoffeinträge Y1 - 2002 ER - TY - THES A1 - Asong, Fred Zisuh T1 - Recycling and material recovery in cameroon: implications for poverty alleviation and ecological sustainability KW - recycling KW - material recovery KW - cameroon KW - poverty alleviation KW - ecological sustainability Y1 - 2010 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:co1-opus-18979 ER - TY - THES A1 - Klenke, Michael T1 - Sorptions- und Retentionspotenziale der organogenen Niederungsstandorte im Land Brandenburg bei Starkniederschlagsentlastung und Beaufschlagungen mit biologisch gereinigtem Abwasser KW - Sorptionspotenzial KW - Retentionspotenzial KW - organogen KW - Niederungsstandort KW - Land Brandenburg KW - Starkniederschlagsentlastung KW - biologisch gereinigtes Abwasser Y1 - 2010 ER - TY - THES A1 - Koch, Christian T1 - Einsatz von alkalischen Materialien und CO2 zur Neutralisierung bergbaubedingter versauerter oberirdischer Gewässer und nachfolgender CO2-Mineralisierung KW - Neutralisierung KW - bergbaubedingt KW - versauert KW - oberirdische Gewässer KW - CO2-Mineralisierung Y1 - 2010 ER - TY - THES A1 - Schinke, Reinhard T1 - Untersuchungen zum Gaseintrag in Grundwasserschäden von Abfallablagerungen unter Berücksichtigung natürlicher und stimulierter Schadstoffminderungsprozesse KW - Gaseintrag KW - Grundwasserschäden KW - Abfallablagerungen KW - Schadstoffminderungsprozesse Y1 - 2008 ER - TY - THES A1 - Weber, Anne T1 - Randbedingungen für Sorption und Abbau sprengstofftypischer Verbindungen am Beispiel der Rüstungsaltlast Elsnig/Torgau KW - Sorption KW - Abbau KW - sprengstofftypische Verbindungen KW - Rüstungsaltlast KW - Elsnig/Torgau Y1 - 2008 ER - TY - THES A1 - Graupner, Bastian Johannes T1 - Beitrag zur Prognose der Grundwasserbeschaffenheit im Lausitzer Bergbaurevier auf der Grundlage eines großräumigen prozessorientierten Geoinformationssystems KW - Grundwasserbeschaffenheit KW - Lausitzer Bergbaurevier KW - prozessorientiert KW - Geoinformationssystem Y1 - 2008 ER - TY - THES A1 - Swaboda, Dietrich T1 - Kalibrierung prozessbasierter Kontinuummodelle zur Abbildung der Wasser- und Stoffdynamik in variabel gesättigten porösen Medien KW - Kalibrierung KW - Kontinuummodelle KW - Wasserdynamik KW - Stoffdynamik KW - poröse Medien Y1 - 2008 ER - TY - THES A1 - Fisch, Stephan T1 - Mesoskalige Modellierung der Pyritoxidation in Abraumkippen des Braunkohlebergbaus KW - mesoskalige Modellierung KW - Pyritoxidation KW - Abraumkippen des Braunkohlebergbaus Y1 - 2005 PB - BTU, UWV CY - Cottbus ER - TY - THES A1 - Kurtz, Stefan T1 - Untersuchung der Prozesse der Mn(II)-Entfernung bei der Behandlung von Abwässern aus einem Kohlebergbau in Vang Danh (Vietnam) und Entwicklung eines Verfahrens zur Entmanganung von Grubenwässern KW - Behandlung von Abwässern KW - Kohlebergbau KW - Vang Danh KW - Vietnam KW - Entmanganung KW - Grubenwässer Y1 - 2011 ER - TY - THES A1 - Koller, Christian T1 - Geophysikalische Bohrlochmesssonde zur multimethodischen und azimutabhängigen Detektion von Strömungen im Ringraum von Grundwassermessstellen KW - geophysikalische Bohrlochmesssonde KW - azimutabhängige Detektion Y1 - 2011 ER - TY - THES A1 - Herrmann, Frank T1 - Entwicklung einer Methodik zur großräumigen Modellierung von Grundwasserdruckflächen am Beispiel der Grundwasserleiter des Bundeslandes Hessen KW - Grundwasserdruckfläche KW - Hessen Y1 - 2010 ER - TY - THES A1 - Cheo, Victor Ngu T1 - Policy and environmental communication in mitigation of non-sustainable forest exploitation in Cameroon: an impact assessment of anglophone Ameroon KW - forest exploitation KW - Cameroon KW - anglophone Ameroon Y1 - 2011 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:co1-opus-20769 ER -