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  • 1
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    Long problems : climate change and the challenge of governing across time (2024)
    Princeton : Princeton University Press
    Details Availability
    Description / Table of Contents: "This book argues that, just as the "widening" of political problems across national boundaries due to globalization has led to profound shifts in how we understand, study, and approach governance across space, so too does their "lengthening" across time horizons require a fundamental shift in thinking and policy. Social scientists and policy-makers have yet to really appreciate the role that time can play, hampering our ability to find effective solutions. In this book, Thomas Hale explores the implications of "long problems"- those, like climate change, whose proximate causes and effects unfold over relatively long time periods -for politics and governance. Hale starts by defining long problems and then considers the three features that make these issues so challenging: institutional lag, the fact that future generations cannot advocate for their interests in the present, and the difficulty of acting early enough to make a difference. Tackling long problems requires solutions that address these challenges head on, and Hale presents interventions to address each, not just in the abstract but with copious examples of policies that have worked or have failed. The author also considers, more largely, how social science can best study long problems, outlining a research agenda that aims to shift the object of study from the past to the future. In sum, Hale presents a framework and vision for how society can best govern long problems and address complex and profound challenges like climate change"--
    Pages: pages cm
    ISBN: 9780691238128
    Language: English
    Note: Long problems -- Why long problems are hard to govern -- Forward action : addressing the early action paradox -- The long view : addressing shadow interests -- Endurance and adaptability : addressing institutional lag -- Studying long problems -- Governing time.
    Branch Library: PIK Library
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  • 2
    Monograph available for loan
    Monograph available for loan
    Alaska's changing boreal forest (2006)
    New York [u.a.] : Oxford University Press
    Details Availability
    Call number: AWI Bio-24-95729
    Type of Medium: Monograph available for loan
    Pages: XIV, 354 Seiten , Illustrationen
    ISBN: 0195154312 , 9780195154313 , 978-0-19-515431-3
    Series Statement: Long-Term Ecological Research Network Series
    URL: http://scans.hebis.de/13/33/53/13335393_toc.pdf
    Language: English
    Note: Contents Contributors Part I. Alaska's Past and Present Environment 1. The Conceptual Basis of LTER Studies in the Alaskan Boreal Forest / F. Stuart Chapin III, john Yarie, Keith Van Cleve, and Leslie A. Viereck 2. Regional Overview of Interior Alaska / James E. Beget, David Stone, and David L Verbyla 3. State Factor Control of Soil Formation in Interior Alaska / Chien-Lu Ping, Richard D. Boone, Marcus H. Clark, Edmond C. Packee, and David K. Swanson 4. Climate and Permafrost Dynamics of the Alaskan Boreal Forest / Larry D. Hinzman, Leslie A. Viereck, Phyllis C. Adams, Vladimir E. Romanovsky, and Kenji Yoshikawa 5. Holocene Development of the Alaskan Boreal Forest / Andrea H. Lloyd, Mary E. Edwards, Bruce P. Finney, Jason A. Lynch, Valerie Barber, and Nancy H. Bigelow Part II. Forest Dynamics 6. Floristic Diversity and Vegetation Distribution in the Alaskan Boreal Forest / F. Stuart Chapin III, Teresa Hollingsworth, David F. Murray, Leslie A. Viereck, and Marilyn D. Walker 7. Successional Processes in the Alaskan Boreal Forest / F. Stuart Chapin III, Leslie A. Viereck, Phyllis C. Adams, Keith Van Cleve, Christopher L. Fastie, Robert A. Ott, Daniel Mann, and Jill F. Johnstone 8. Mammalian Herbivore Population Dynamics in the Alaskan Boreal Forest / Eric Rexstad and Knut Kielland 9. Dynamics of Phytophagous Insects and Their Pathogens in Alaskan Boreal Forests / Richard A. Werner, Kenneth F. Raffa, and Barbara L. Illman 10. Running Waters of the Alaskan Boreal Forest / Mark W. Oswood, Nicholas F. Hughes, and Alexander M. Milner Part III. Ecosystem Dynamics 11. Controls over Forest Production in Interior Alaska / John Yarie and Keith Van Cleve 12. The Role of Fine Roots in the Functioning of Alaskan Boreal Forests / Roger W. Ruess, Ronald L. Hendrick, Jason C. Vogel, and Bjartmar Sveinbjornsson 13. Mammalian Herbivory, Ecosystem Engineering, and Ecological Cascades in Alaskan Boreal Forests / Knut Kielland, John P. Bryant, and Roger W. Ruess 14. Microbial Processes in the Alaskan Boreal Forest / Joshua P. Schimel and F. Stuart Chapin III 15. Patterns of Biogeochemistry in Alaskan Boreal Forests / David W. Valentine, Knut Kielland, F. Stuart Chapin III, A. David McCuire, and Keith Van Cleve Part IV. Changing Regional Processes 16. Watershed Hydrology and Chemistry in the Alaskan Boreal Forest: The Central Role of Permafrost / Larry D. Hinzman, W. Robert Bolton, Kevin C. Petrone, Jeremy B. Jones, and Phyllis C. Adams 17. Fire Trends in the Alaskan Boreal Forest / Eric S. Kasischke, T. Scott Rupp, and David L. Verbyla 18. Timber Harvest in Interior Alaska / Tricia L. Wurtz, Robert A. Ott, and John C. Maisch 19. Climate Feedbacks in the Alaskan Boreal Forest / A. David McCuire and F. Stuart Chapin III 20. Communication of Alaskan Boreal Science with Broader Communities / Elena B. Sparrow, Janice C. Dawe, and F. Stuart Chapin III 21. Summary and Synthesis: Past and Future Changes in the Alaskan Boreal Forest / F. Stuart Chapin III, A. David McCuire, Roger W. Ruess, Marilyn W. Walker, Richard D. Boone, Mary E. Edwards, Bruce P. Finney, Larry D. Hinzman, Jeremy B. Jones, Clenn P. Juday, Eric S. Kasischke, Knut Kielland, Andrea H. Lloyd, Mark W. Oswood, Chien-Lu Ping, Eric Rexstad, Vladimir E. Romanovsky, Joshua P. Schimel, Elena B. Sparrow, Bjartmar Sveinbjornsson, David W. Valentine, Keith Van Cleve, David L. Verbyla, Leslie A. Viereck, Richard A. Werner, Tricia L. Wurtz, and John Yarie Index
    Location: AWI Reading room
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  • 3
    Monograph available for loan
    Monograph available for loan
    Introduction to modern climate change (2022)
    Cambridge : Cambridge University Press
    Details Availability
    Call number: PIK 24-95731
    Type of Medium: Monograph available for loan
    Pages: xviii, 270 Seiten , Illustrationen, Diagramme, Karten , 25 cm
    Edition: Third edition
    ISBN: 9781108793872 , 9781108840187
    URL: Inhaltsverzeichnis
    DOI: 10.1017/9781108879125
    Language: English
    Location: A 18 - must be ordered
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  • 4
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    Virtual experiments on an IP laboratory measurement (2024)
    In:  Protokoll über das 30. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung: St. Marienthal, 25. September - 29. September 2023
    Details
    Publication Date: 2024-06-05
    Description: Carrying out laboratory experiments is usually a time-consuming process. In addition, the options for varying parameter studies are limited and adjustments to the design of the measuring equipment are often not possible at all. In order to circumvent these limitations, we supplement our laboratory experiments with virtual experiments as best as possible. For this purpose, we have expanded our finite element library FEMALY [1] to include the so-called complete electrode model [2], which allows us to simulate electrodes of any shape for DC and IP applications and also provides us with explicit mathematical expressions for calculating sensitivities [3]. As a first case study, we consider an IP measurement on a measuring cylinder with embedded ring electrodes to virtually reproduce the time-varying change of the apparent resistivity for laboratory tracer experiments (Figure 1). We present the real and imaginary part of the sensitivity distribution of the underlying measurement configuration that confirms our initial assumption that the actual electrode surface shape has a relatively small influence on the observed measurement quantities.
    Language: English
    Type: info:eu-repo/semantics/conferenceObject
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  • 5
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    Optimization process of the DESMEX induction coil bird for AFMAG measurements (2024)
    In:  Protokoll über das 30. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung: St. Marienthal, 25. September - 29. September 2023
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    Publication Date: 2024-06-05
    Language: English
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  • 6
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    The auroral electrojet, magnetic activity, and source effects in mid latitude induction arrows: Results from longterm observations (2024)
    In:  Protokoll über das 30. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung: St. Marienthal, 25. September - 29. September 2023
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    Publication Date: 2024-06-05
    Language: English
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  • 7
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    Multidimensional inversion of sedimentary sequences in the Atacama Desert, Chile, using transient electromagnetic data (2024)
    In:  Protokoll über das 30. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung: St. Marienthal, 25. September - 29. September 2023
    Details
    Publication Date: 2024-06-05
    Description: The Atacama Desert along the Chilean Coastal Cordillera is a unique landscape to understand the Earth's evolution in hyper-arid and arid environments. The Paranal clay pan has studied by the CRC 1211 project to recover a continuous climate record for paleoclimate research. The goal is to provide the sedimentary architecture and bedrock topography of the Paranal site by interpreting multidimensional inversion of loop source transient electromagnetic (TEM) data. A total of 133 TEM soundings were carried out using a central loop configuration, with a transmitter loop size of 40×40 m2 and a receiver of about 10×10 m2. The TEM data was processed and analyzed, exhibiting high-quality data, with an average of noise level of about ηnoi = 3·10−10V/Am2. The 1D Occam inversion results exhibits a clear three-layered resistivitydepth structure with a second conductive layer of roughly 20 Ωm. The clay pan's resistivity distribution is well-resolved with a global misfit of around 1.1. However, the study site showed 2D effects that were stronlgy visible at the edges of the clay pan, leading to misinterpretations of the TEM data. This was confirmed based on 2D forward modelling. In this manner, to better deal with the observed 2D distortions in the TEM data and to derive a more accurate geometry of the clay pan, the recently developed Julia Package (3DTEMinv) for time-domain 3D inversion and modeling data was performed. The resulting 3D inversion presents a high convergence rate, and acceptable solutions are obtained after ten iterations with a good misfit of about 1.6. The 3D model exhibits a well-resolved geometry of the clay pan, with a high resolution of the derived conductive body. The drill core results confirm the 1D and 3D TEM models at the center of the clay pan, which is in good agreement with the resulting lithology with a maximum thickness of about 171 m depth and a weathered granodioritic bedrock below. These results agree with the local and regional geological context, improving the understanding of sediment deposition and transportation in this hilly and arid environment.
    Language: English
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  • 8
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    Semi-airborne electromagnetic exploration for deep earth resources - large scale multi source 3D imaging of a graphite deposit (2024)
    In:  Protokoll über das 30. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung: St. Marienthal, 25. September - 29. September 2023
    Details
    Publication Date: 2024-06-05
    Description: The transition towards renewable energies demands secure supply with critical raw material and requires efficient non-invasive methods for deep earth resources exploration. The novel DESMEX (Deep electromagnetic sounding for mineral exploration) semi-airborne electromagnetic (semi-AEM) exploration concept aims at efficient exploration of resources down to 1 km depth. Here we present a large-scale semi-AEM exploration study in a graphite mining district in eastern Bavaria, Germany. At the ground, several horizontal electrical dipole transmitters were deployed and helicopter-towed magnetic field sensors measure the EM fields along flight lines within several overlapping flight areas, providing a fast data acquisition and a high spatial coverage. Imaged shallow high conductivity structures can be correlated with graphite-rich zones and match well with existing helicopter-borne EM results. The presence of graphite leads to significant induced polarization (IP) effects with considerably high chargeabilities superposing electromagnetic induction. We include these effects in a realistic 3D inversion using a synthetic data study to analyse, if the IP effect alters the overall conductivity structure and demonstrate that the obtained 3D model is reliable.
    Language: English
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  • 9
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    Geophysical Investigation of the Weidenpesch Waste Site in Cologne, Germany (2024)
    In:  Protokoll über das 30. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung: St. Marienthal, 25. September - 29. September 2023
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    Publication Date: 2024-06-05
    Language: English
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  • 10
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    1D modeling of TEM data influenced by IP effects (2024)
    In:  Protokoll über das 30. Schmucker-Weidelt-Kolloquium für Elektromagnetische Tiefenforschung: St. Marienthal, 25. September - 29. September 2023
    Details
    Publication Date: 2024-06-05
    Description: Transient electromagnetic (TEM) data can be significantly distorted by induced polarization (IP) effect, leading to a sign reversal feature and, if overlooked, false geological interpretation. The aim of this paper is to incorporate IP effects in the forward modelling and recover the distorted TEM data using an efficient inversion algorithm. To achieve this aim, we developed a 1D forward solver to incorporate the IP effects using various IP parameterizations including Cole-Cole, maximum phase angle (MPA), maximum imaginary conductivity (MIC) (Fiandaca et al., 2018) and the Jeffrey transform of Cole-Cole parameters (Ghorbani et al., 2007). For 1D inversion of distorted TEM data we used Levenberg-Marquardt and very fast simulated annealing algorithms. The result of 1D forward calculation and inversion of synthetic IPdistorted TEM data revealed that, for incorporation the IP effects into the TEM data, the Cole- Cole parametrization is more robust and reliable than MPA, MIC, and Jeffrey transform. Moreover, the result of inversion using Levenberg-Marquardt algorithm is strongly depends on the starting model. We successfully implemented these algorithms for 1D inversion of synthetic IP-affected TEM data (Fig. 1 ). For synthetic data generation, a 3-layered half space model with the thickness of the first and second layers of 5 m was considered. The resistivities of the layers from top to bottom are 10, 5 and 300 Ωm, respectively. To include the IP effect, second layer considered to be chargeable with Cole-Cole parameters of m = 0.5, τ = 0.01 s and c = 0.5. TEM central-loop configuration with a loop size of 50*50 m2 and step-off current of 1 A with a zero ramp time was used for data simulation. We evaluated the performance of our algorithm using field data, successfully.
    Language: English
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