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  • 1
    Keywords: Geophysics. ; Challenges. ; History. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (419 pages)
    Edition: 1st ed.
    ISBN: 9783319075990
    Series Statement: GeoPlanet: Earth and Planetary Sciences Series
    DDC: 550
    Language: English
    Note: Intro -- Series Editors -- Managing Editor -- Advisory Board -- Preface -- In Memoriam (2004-2013) -- Contents -- Part IHistory and Achievements -- 1 Best Practices in Earth Sciences: The National and International Experience of the Institute of Geophysics, Polish Academy of Sciences -- Abstract -- 1…The Institute of Geophysics PAS in the Service Towards Better Understanding of the Earth -- 2…The Genesis of the Institute of Geophysics PAS -- 3…Commitment to Build for Scientific Leadership -- 3.1 Geophysical Investigations of the Lithosphere -- 3.2 Geophysical Investigations of the Atmosphere -- 3.3 Geophysical Investigations of the Hydrosphere -- 3.4 Polar Research -- Acknowledgments -- References -- 2 On the Roots of the Institute of Geophysics, Polish Academy of Sciences -- Abstract -- 1…Geophysics Amidst the Earth Sciences -- 2…Early Years of Polish Geophysics -- 3…From the Outbreak of the Second World War to 1952 -- Acknowledgments -- References -- 3 Fifty Years of Palaeomagnetic Studies in the Institute of Geophysics, Polish Academy of Sciences -- Abstract -- 1…Introduction -- 2…The Beginnings of the Palaeomagnetic Laboratory -- 3…The New Research Directions Since 1970s -- 4…The Next Stage of Palaeomagnetic Laboratory in a New Institute Location at Ksieogoncia Janusza -- 5…The Development of the Laboratory Infrastructure Since 1990 -- 6…Conclusions -- References -- 4 Natural Variations of the Geomagnetic Field: Observations and Application to Study of the Earth's Interior and Ionosphere -- Abstract -- 1…Observatories -- 2…Beginning of Geomagnetic (Magnetovariational) Surveys -- 3…Theoretical (Methodological) Research -- 4…Regional Surveys -- 5…Earthquake Precursors and State of the Ionosphere -- 6…Summary -- References -- 5 Half Century of the Ozone Observations at the Central Geophysical Observatory, IGF PAS, Belsk, Poland -- Abstract. , 1…Introduction -- 2…History of the Ozone Observations at Belsk -- 3…The Ozone Explanatory Variables -- 4…Statistical Model -- 5…Results -- 6…Summary and Conclusions -- Acknowledgments -- References -- 6 Forty Years of Water Research at the Institute of Geophysics, Polish Academy of Sciences -- Abstract -- 1…History and Recent Achievements -- 2…Current Situation and Future Challenges -- Acknowledgments -- References -- 7 Changes in Catchment Hydrology Caused by Changes in the Environment: A Contribution of the Water Resources Department, Institute of Geophysics PAS -- Abstract -- 1…Introduction -- 2…Contribution to Research -- 3…Ongoing Work and Challenges for the Future -- 4…Conclusion -- References -- 8 Five Polish Seismic Expeditions to the West Antarctica (1979--2007) -- Abstract -- 1…Introduction -- 2…Tectonic Setting -- 3…Reflection Investigations -- 4…Results of Deep Seismic Soundings Investigations -- 4.1 Bransfield Strait -- 4.2 Main Transects -- 4.3 Moho Depth and Crustal Features -- 5…Shallow Refraction: 3D Experiment -- 6…Gravity and Magnetic Models -- 7…Discussion -- 8…Summary -- Acknowledgments -- References -- 9 Department of Polar and Marine Research: The Hornsund Station and Other Activities in the Arctic and Antarctic Regions -- Abstract -- 1…Historical Background -- 2…Polish Polar Station Hornsund Begins Working Permanently -- 3…Logistics and Transportation -- 4…Further Research Programs, Cooperating Institutions -- 5…Rejuvenation of the Hornsund Station and Current Research at the Department -- Acknowledgments -- References -- 10 Seismology and Earth Dynamics: A Variety of Scientific Approaches -- Abstract -- 1…The Beginnings -- 2…Polish Seismological Network -- 3…Mining Seismicity: A Challenge for Polish Seismology -- 4…Induced Seismicity: Recent Developments -- 5…The Seismic Hazard Monitoring of Poland. , 6…Studies on the Earth's Upper Mantle -- 7…Theoretical Description of Seismic Sources -- 8…Modelling of Earthquakes and Earthquake Cycles -- 9…Stochastic Description of Geophysical Processes -- 10…Studies on the Heat Transfer, Liquid Flow and Electric Properties of Rocks -- 11…Coupled Fields and Electric Resistivity Studies -- 12…Experimental Research on Seismic Rotation -- 13…Some Other Projects -- Acknowledgments -- References -- 11 Sixty Years of Publishing with the Institute of Geophysics -- Abstract -- 1…Introduction -- 2…Own Publications -- 2.1 Seismological Bulletins -- 2.2 Prace Obserwatorium Geofizycznego im St. Kalinowskiego w Sacutewidrze (1959--1976) -- 2.3 Materialstroky i Prace Zaklstrokadu Geofizyki PAN (1963--1976) -- 2.4 Publications of the Institute of Geophysics, Polish Academy of Sciences (Until 2010 in Printed Form, Then, on a Smaller Scale, as an Internet Edition) -- 3…Acta Geophysica Polonica/Acta Geophysica -- 3.1 History -- 3.2 Publishers and Editors -- 3.3 Special/Topical Issues -- 4…Books by External Publishers -- 5…GeoPlanet: Earth and Planetary Sciences Series -- 6…Bibliographic Databases -- Acknowledgments -- References -- Part IIExemplary Current Researchand Geophysical Methods -- 12 Discharge Measurements in Lowland Rivers: Field Comparison Between an Electromagnetic Open Channel Flow Meter (EOCFM) and an Acoustic Doppler Current Profiler (ADCP) -- Abstract -- 1…Introduction -- 2…Study Sites -- 3…Results -- 4…Conclusions -- Acknowledgement -- References -- 13 Random Domino Automaton: Modeling Macroscopic Properties by Means of Microscopic Rules -- Abstract -- 1…Introduction -- 2…Definition of Random Domino Automaton -- 3…Equations of Random Domino Automaton -- 4…Moments of Cluster Distributions and Selection of Special Cases -- 5…Relation to Combinatorial Numbers -- 6…The Ito Equation and Time Series Modeling. , 7…Finite RDA and Universal Curve of Recurrence Time for Earthquakes -- 8…Conclusions -- Acknowledgment -- References -- 14 Continental Passive Margin West of Svalbard and Barents Sea in Polish Arctic Seismic Studies -- Abstract -- 1…Introduction -- 2…Tectonic Setting of the Study Area -- 3…Experimental Setup -- 4…Seismic Results -- 5…Conclusions -- Acknowledgments -- References -- 15 Selected Theoretical Methods in Solid Earth Physics: Contribution from the Institute of Geophysics PAS -- Abstract -- 1…Introduction -- 2…Probabilistic Inverse Theory -- 2.1 General Concept -- 2.2 Inverse Problem: A Probabilistic Point of View -- 2.3 Practical Applications: Examples -- 3…Rotational Waves and Asymmetric Theory of Elasticity -- 4…Flow of Incompressible Viscous Fluids in Porous Media -- 5…Conclusion -- Acknowledgments -- References -- 16 Application of Passive Hydroacoustics in the Studies of Sea-Ice, Icebergs and Glaciers: Issues, Approaches and Future Needs -- Abstract -- 1…Introduction -- 2…Sea-Ice Dynamics, Properties and Sound Propagation Beneath the Sea-Ice Cover -- 3…Drifting, Disintegrating and Grounded Icebergs -- 4…Glacial Activity -- 5…Summary -- Acknowledgements -- References -- 17 Pigeon Navigation Model Based on a Vector Magnetometer -- Abstract -- 1…Introduction -- 2…The Regular Features of the Magnetic Field -- 3…Pigeon Navigation Nearby the Release Site -- 4…Homeward Navigation of Pigeons -- 5…Pigeon Navigation Nearby its Home -- 6…Parameters of Present-Day Magnetometric Systems -- 7…Plan of Future Experiments -- 8…Summary and Conclusions -- References -- 18 Analysis of Surface Ozone Variations Based on the Long-Term Measurement Series in Kraków (1854--1878), (2005--2013) and Belsk (1995--2012) -- Abstract -- 1…Discovery of Ozone, First Measurements and Speculations About its Origin -- 2…Theoretical Background -- 3…Objective of the Chapter. , 4…Experimental Details -- 5…Results and Discussion -- 5.1 Measurement Series in Kraków (1854--1878) -- 5.2 Measurement Series in Belsk (1995--2012) -- 5.3 Comparison of Seasonal Distribution of Measurement Series in Kraków (1869--1878) and Belsk (1995--2012) -- 5.4 Comparison of Diurnal and Seasonal Distribution of Surface Ozone at Contemporary Rural (Belsk) and Urban (Kraków) Stations -- 6…Conclusions -- References -- 19 Dissolved Oxygen in Rivers: Concepts and Measuring Techniques -- Abstract -- 1…Introduction -- 2…Sensing Techniques -- 3…Study Sites and Field Equipment -- 4…Results -- 4.1 Accuracy and Resolution of Sensors -- 4.2 Oversaturation of Dissolved Oxygen -- 4.3 Short- and Long-Term Measurements -- 4.4 Sensor Location -- 5…Conclusions -- Acknowledgments -- References -- 20 Gradient-Based Similarity in the Stable Atmospheric Boundary Layer -- Abstract -- 1…Introduction -- 2…Scaling Systems -- 2.1 Governing Parameters -- 2.2 The Flux-Based Scaling -- 2.3 The Gradient-Based Scaling -- 3…Empirical Verification -- 3.1 Verification in the Stable Surface Layer (The Length Scale LN = kappa z) -- 3.1.1 The SHEBA Experiment -- 3.1.2 Empirical Similarity Functions -- 3.1.3 Structure of Stable Turbulence -- 3.2 Verification Above the Surface Layer [LN = kappa z/(1 + kappa z/ lambda o)] -- 3.2.1 The CASES-99 Experiment -- 3.2.2 Empirical Similarity Functions -- 3.3 Verification in the Boundary Layer Affected by Gravity Waves [LN = sigma w/N, or LN = beta sigma theta /N2] -- 4…Applications -- 4.1 The Temperature-Flux Realizability Condition -- 4.2 Single-Column Modeling -- 5…Final Remarks -- Acknowledgments -- References -- 21 Asymmetric Continuum Theory: Fracture Processes in Seismology and Extreme Fluid Dynamics -- Abstract -- 1…Introduction -- 2…Solids: Basic Relations -- 3…Solids: Induced Strains -- 4…Fluids: Basic Theory. , 5…Conclusions: Joint Continuum Theory for Solids and Fluids.
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  • 2
    Publication Date: 2017-06-06
    Description: The presented study is a part of the passive seismic experiment PASSEQ 2006–2008, which took place around the Trans-European Suture Zone (TESZ) from May 2006 to June 2008. The data set of 4195 manually picked arrivals of teleseismic P waves of 101 earthquakes (EQs) recorded in the seismic stations deployed to the east of the TESZ was inverted using the non-linear teleseismic tomography algorithm TELINV. Two 3-D crustal models were used to estimate the crustal travel time (TT) corrections. As a result, we obtain a model of P-wave velocity variations in the upper mantle beneath the TESZ and the East European Craton (EEC). In the study area beneath the craton, we observe up to 3% higher and beneath the TESZ about 2–3% lower seismic velocities compared to the IASP91 velocity model. We find the seismic lithosphere–asthenosphere boundary (LAB) beneath the TESZ at a depth of about 180 km, while we observe no seismic LAB beneath the EEC. The inversion results obtained with the real and the synthetic data sets indicate a ramp shape of the LAB in the northern TESZ, where we observe values of seismic velocities close to those of the craton down to about 150 km. The lithosphere thickness in the EEC increases going from the TESZ to the NE from about 180 km beneath Poland to 300 km or more beneath Lithuania. Moreover, in western Lithuania we find an indication of an uppermantle dome. In our results, the crustal units are not well resolved. There are no clear indications of the features in the upper mantle which could be related to the crustal units in the study area. On the other hand, at a depth of 120–150 km we indicate a trace of a boundary of proposed palaeosubduction zone between the East Lithuanian Domain (EL) and theWest Lithuanian Granulite Domain (WLG). Also, in our results, we may have identified two anorogenic granitoid plutons.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 3
    Publication Date: 2017-06-13
    Description: The presented study aims to resolve the upper mantle structure around the Trans-European Suture Zone (TESZ), which is the major tectonic boundary in Europe. The data of 183 temporary and permanent seismic stations operated during the period of the PASsive Seismic Experiment (PASSEQ) 2006–2008 within the study area from Germany to Lithuania was used to compile the data set of manually picked 6008 top-quality arrivals of P waves from teleseismic earthquakes. We used the TELINV nonlinear teleseismic tomography algorithm to perform the inversions. As a result, we obtain a model of P wave velocity variations up to about �3% with respect to the IASP91 velocity model in the upper mantle around the TESZ. The higher velocities to the east of the TESZ correspond to the older East European Craton (EEC), while the lower velocities to the west of the TESZ correspond to younger western Europe.We find that the seismic lithosphere–asthenosphere boundary (LAB) is more distinct beneath the Phanerozoic part of Europe than beneath the Precambrian part. To the west of the TESZ beneath the eastern part of the Bohemian Massif, the Sudetes Mountains and the Eger Rift, the negative anomalies are observed from a depth of at least 70 km, while under the Variscides the average depth of the seismic LAB is about 100 km.We do not observe the seismic LAB beneath the EEC, but beneath Lithuania we find the thickest lithosphere of about 300 km or more. Beneath the TESZ, the asthenosphere is at a depth of 150– 180 km, which is an intermediate value between that of the EEC and western Europe. The results imply that the seismic LAB in the northern part of the TESZ is in the shape of a ramp dipping to the northeasterly direction. In the southern part of the TESZ, the LAB is shallower, most probably due to younger tectonic settings. In the northern part of the TESZ we do not recognize any clear contact between Phanerozoic and Proterozoic Europe, but further to the south we may refer to a sharp and steep contact on the eastern edge of the TESZ. Moreover, beneath Lithuania at depths of 120–150 km, we observe the lower velocity area following the boundary of the proposed paleosubduction zone.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 4
    Publication Date: 2019-07-17
    Description: The territory of Lithuania and adjacent areas of the East European Craton have always been considered a region of low seismicity. Two recent earthquakes with magnitudes of more than 5 in the Kaliningrad District (Russian Federation) on 21 September 2004 motivated re-evaluation of the seismic hazard in Lithuania and adjacent territories. A new opportunity to study seismicity in the region is provided by the PASSEQ (Pasive Seismic Experiment) project that aimed to study the lithosphere–asthenosphere structure around the Trans-European Suture Zone. Twenty-six seismic stations of the PASSEQ temporary seismic array were installed in the territory of Lithuania. The stations recorded a number of local and regional seismic events originating from Lithuania and adjacent areas. This data can be used to answer the question of whether there exist seismically active tectonic zones in Lithuania that could be potentially hazardous for critical industrial facilities. Therefore, the aim of this paper is to find any natural tectonic seismic events in Lithuania and to obtain more general view of seismicity in the region. In order to do this, we make a manual review of the continuous data recorded by the PASSEQ seismic stations in Lithuania. From the good quality data, we select and relocate 45 local seismic events using the well-known LocSAT and VELEST location algortithms. In order to discriminate between possible natural events, underwater explosions and on-shore blasts, we analyse spatial distribution of epicenters and temporal distribution of origin times and perform both visual analysis of waveforms and spectral analysis of recordings. We show that the relocated seismic events can be grouped into five clusters (groups) according to their epicenter coordinates and origin and that several seismic events might be of tectonic origin. We also show that several events from the off-shore region in the Baltic Sea (at the coasts of the Kaliningrad District of the Russian Federation) are non-volcanic tremors, although the origin of these tremor-type events is not clear.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 5
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    Svalbard Integrated Arctic Earth Observing System
    In:  EPIC3SESS report 2019, Longyearbyen, Svalbard Integrated Arctic Earth Observing System, pp. 136-159, ISBN: 978-82-691528-6-9
    Publication Date: 2020-01-19
    Repository Name: EPIC Alfred Wegener Institut
    Type: Inbook , peerRev
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  • 6
    Publication Date: 2018-12-16
    Description: PASSEQ 2006-2008 (Passive Seismic Experiment in TESZ; Wilde-Piórko et al. 2008) was the biggest passive seismic experiment carried out so far in the area of Central Europe (Poland, Germany, the Czech Republic and Lithuania). 196 seismic stations (including 49 broadband seismometers) worked simultaneously for over two years. During the experiment, multiple types of data recorders and seismometers were used, making the analysis more complex and time consuming. The dataset was unified and repaired to start the detection of local seismic events. Two different approaches for detection were applied for stations located in Poland. The first one used standard STA/LTA triggers (Carl Johnson’s STA/LTA algorithm) and grid search to classify and locate the events. The result was manually verified. The second approach used Real Time Recurrent Network (RTRN) detection (Wiszniowski et al. 2014). Both methods gave similar results, showing four previously unknown seismic events located in the Gulf of Gdansk area, situated in the southern Baltic Sea. In this paper we discuss both detection methods with their pros and cons (accuracy, efficiency, manual work required, scalability). We also show details of all detected and previously unknown events in the discussed area.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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