@article{DomschLueckEisenreich1999, author = {Domsch, Horst and L{\"u}ck, Erika and Eisenreich, Manfred}, title = {Bestimmung der elektrischen Leitf{\"a}higkeit des Bodens mit dem Meßger{\"a}t EM 38 von Geonics zur Kennzeichnung der Verteilung sich unterscheidender Bodenprofile = Determination of the electrical soil bulk conductivity with the Geonics EM 38 for the identification of the soil types distribution}, year = {1999}, language = {de} } @article{Lueck2000, author = {L{\"u}ck, Erika}, title = {Erkundungen eines arch{\"a}ologischen Grabenwerkes mittels Georadar}, year = {2000}, language = {de} } @article{LueckEisenreich1999, author = {L{\"u}ck, Erika and Eisenreich, Manfred}, title = {Kartierung der elektrischen Leitf{\"a}higkeit zur Erfassung r{\"a}umlicher Variationen von Bodenparametern}, year = {1999}, language = {de} } @article{LueckEisenreichDomsch2000, author = {L{\"u}ck, Erika and Eisenreich, Manfred and Domsch, Horst}, title = {Einf{\"u}hrung geophysikalischer Meßverfahren zur Ermittlung von Bodenkennwerten f{\"u}r die teilfl{\"a}chenspezifische Bewirtschaftung in der KSG Agrargesellschaft mbH Kassow}, year = {2000}, language = {de} } @article{DomschEhlertLuecketal.2000, author = {Domsch, Horst and Ehlert, D. and L{\"u}ck, Erika and Eisenreich, Manfred}, title = {Use of the electrical conductivity to reduce the effort of precision farming}, year = {2000}, language = {en} } @book{LueckEisenreichDomsch2002, author = {L{\"u}ck, Erika and Eisenreich, Manfred and Domsch, Horst}, title = {Innovative Kartiermethoden f{\"u}r die teilfl{\"a}chenspezifische Landwirtschaft : innovative Methods for Precision Agriculture}, series = {Stoffdynamik in Geosystemen}, volume = {7}, journal = {Stoffdynamik in Geosystemen}, editor = {Blumenstein, Oswald}, publisher = {Selbstverl. der Arbeitsgruppe Stoffdynamik in Geosystemen}, address = {Potsdam}, issn = {0949-4731}, pages = {155 S.}, year = {2002}, language = {de} } @article{Lueck2000, author = {L{\"u}ck, Erika}, title = {Geophysikalische Prospektionsmethoden f{\"u}r die Arch{\"a}ologie}, isbn = {3-931836-16-9}, year = {2000}, language = {de} } @article{LueckMeyer1999, author = {L{\"u}ck, Erika and Meyer, M.}, title = {Geophysical preparation of an archaeological excavation in the highlands (Mardorf, Hessen)}, year = {1999}, language = {en} } @article{LueckEisenreichSpangenbergetal.2000, author = {L{\"u}ck, Erika and Eisenreich, Manfred and Spangenberg, Ute and Sch{\"u}tte, Marc}, title = {Automatisierung der Leckageerkennung an Deponieoberfl{\"a}chenabdichtungen}, year = {2000}, language = {de} } @article{LueckEisenreichBlumensteinetal.1998, author = {L{\"u}ck, Erika and Eisenreich, Manfred and Blumenstein, Oswald and Domsch, Horst}, title = {Geophysikalische Untersuchungen zur Erfassung r{\"a}umlicher und zeitlicher Variationen von Bodenstrukturen}, year = {1998}, language = {de} } @article{DomschLueckEisenreich1998, author = {Domsch, Horst and L{\"u}ck, Erika and Eisenreich, Manfred}, title = {Description o a soil structure by means of the penetration resistance and the electrical conductivity}, year = {1998}, language = {en} } @article{LueckEisenreich1998, author = {L{\"u}ck, Erika and Eisenreich, Manfred}, title = {Die elektrische Leitf{\"a}higkeit als eine Steuergr{\"o}ße f{\"u}r die teilfl{\"a}chenspezifische Landwirtschaft}, year = {1998}, language = {de} } @article{Lueck1999, author = {L{\"u}ck, Erika}, title = {Deep crustal structure of the Northeast German Basin : new DEKORP-BASIN {\"i}96 deep-profiling results}, issn = {0091-7613}, year = {1999}, language = {en} } @article{LueckEisenreich1999, author = {L{\"u}ck, Erika and Eisenreich, Manfred}, title = {Geophysikalische Meßverfahren zur Ermittlung von Bodenkennwerten f{\"u}r die teilfl{\"a}chenspezifische Bewirtschaftung}, year = {1999}, language = {de} } @article{LueckEisenreichWetzel1998, author = {L{\"u}ck, Erika and Eisenreich, Manfred and Wetzel, G.}, title = {Geophysikalische Untersuchungen zur Erkundung der Kreisgrabenanlage bei Dyrotz (Brandenburg)}, year = {1998}, language = {de} } @article{LueckEisenreich1998, author = {L{\"u}ck, Erika and Eisenreich, Manfred}, title = {Geophysical prospections of archaeological sites in Brandenburg}, year = {1998}, language = {en} } @article{LueckEisenreich1999, author = {L{\"u}ck, Erika and Eisenreich, Manfred}, title = {Geophysical prospection of archaeological sites in Brandenburg}, year = {1999}, language = {en} } @article{LueckRuehlmann2013, author = {L{\"u}ck, Erika and R{\"u}hlmann, J{\"o}rg}, title = {Resistivity mapping with GEOPHILUS ELECTRICUS - Information about lateral and vertical soil heterogeneity}, series = {Geoderma : an international journal of soil science}, volume = {199}, journal = {Geoderma : an international journal of soil science}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0016-7061}, doi = {10.1016/j.geoderma.2012.11.009}, pages = {2 -- 11}, year = {2013}, abstract = {GEOPHILUS ELECTRICUS (nickname GEOPHILUS) is a novel system for mapping the complex electrical bulk resistivity of soils. Rolling electrodes simultaneously measure amplitude and phase data at frequencies ranging from 1 mHz to 1 kHz. The sensor's design and technical specifications allow for measuring these parameters at five depths of up to ca. 1.5 m. Data inversion techniques can be employed to determine resistivity models instead of apparent values and to image soil layers and their geometry with depth. When used in combination with a global positioning system (GPS) and a suitable cross-country vehicle, it is possible to map about 100 ha/day (assuming 1 data point is recorded per second and the line spacing is 18 m). The applicability of the GEOPHILUS system has been demonstrated on several sites, where soils show variations in texture, stratification, and thus electrical characteristics. The data quality has been studied by comparison with 'static' electrodes, by repeated measurements, and by comparison with other mobile conductivity mapping devices (VERIS3100 and EM38). The high quality of the conductivity data produced by the GEOPHILUS system is evident and demonstrated by the overall consistency of the individual maps, and in the clear stratification also confirmed by independent data. The GEOPHILUS system measures complex values of electrical resistivity in terms of amplitude and phase. Whereas electrical conductivity data (amplitude) are well established in soil science, the interpretation of phase data is a topic of current research. Whether phase data are able to provide additional information depends on the site-specific settings. Here, we present examples, where phase data provide complementary information on man-made structures such as metal pipes and soil compaction.}, language = {en} } @article{StillerLueckKrawczyk1997, author = {Stiller, M. and L{\"u}ck, Erika and Krawczyk, C. M.}, title = {DEKORP{\"i}s deep-seismic Transect BASIN{\"i}96 throught the north german basin : field work and data processing}, year = {1997}, language = {en} } @article{WalterLueckHelleretal.2019, author = {Walter, J. and L{\"u}ck, Erika and Heller, C. and Bauriegel, Albrecht and Zeitz, Jutta}, title = {Relationship between electrical conductivity and water content of peat and gyttja}, series = {Near surface geophysics}, volume = {17}, journal = {Near surface geophysics}, number = {2}, publisher = {Wiley}, address = {Hoboken}, issn = {1569-4445}, doi = {10.1002/nsg.12030}, pages = {169 -- 179}, year = {2019}, abstract = {The application of electrical resistivity tomography to peatlands supports conventional coring by providing data on the current condition of peatlands, including data on stratigraphy, peat properties and thickness of organic deposits. Data on the current condition of drained peatlands are particularly required to improve estimates of carbon storage as well as losses and emissions from agriculturally used peatlands. However, most of the studies focusing on electrical resistivity tomography surveys have been conducted on natural peatlands with higher groundwater levels. Peatlands drained for agriculture have not often been studied using geophysical techniques. Drained sites are characterized by low groundwater levels and high groundwater fluctuations during the year, which lead to varying levels of water saturation. To validate better electrical resistivity tomography surveys of drained peatlands, the aim of this laboratory study is to investigate the influence of varying water saturation levels on electrical conductivity (reciprocal of resistivity) for a variety of peat and gyttja types, as well as for different degrees of peat decomposition. Results show that different levels of water saturation strongly influence bulk electrical conductivity. Distinct differences in this relationship exist between peat and gyttja substrates and between different degrees of peat decomposition. Peat shows an exponential relationship for all degrees of decomposition, whereas gyttja, in particular organic-rich gyttja, is characterized by a rather unimodal relationship. The slopes for the relationship between electrical conductivity and water content are steeper at high degrees of decomposition than for peat of low degrees of decomposition. These results have direct implications for field electrical resistivity tomography surveys. In drained peatlands that are strongly susceptible to drying, electrical resistivity tomography surveys have a high potential to monitor the actual field water content. In addition, at comparable water saturations, high or low degrees of decomposition can be inferred from electrical conductivity.}, language = {en} }