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  • 1
    Online Resource
    Online Resource
    EuroKarst 2022, Málaga : Advances in the Hydrogeology of Karst and Carbonate Reservoirs (2023)
    Cham :Springer International Publishing :
    Details
    Keywords: Geology. ; Water. ; Hydrology. ; Geomorphology. ; Geotechnical engineering. ; Geology. ; Water. ; Geomorphology. ; Geotechnical Engineering and Applied Earth Sciences.
    Description / Table of Contents: Part I: Karst hydrogeology and methods to study karst aquifers -- Initiative to select, label and protect the world’s most important karst springs -- Flood hazard in the Classical Karst: the case of Mucille polje (NE Italy) -- Impacts of Recharge and Discharge on Sustainability of the Trinity Aquifers of Central Texas -- Hydrodynamic characterization of sources of karst: case of the source of Ain Sebou (middle Atlas, central, Morocco) -- Surprising time lag between precipitation and groundwater levels in a karst aquifer of Kopa Mt. (Slovakia) -- Updating the water budget of the Gran Sasso carbonate fractured/karstified aquifer (Central Italy) for a sustainable management of groundwater resources -- Combining quantitative analysis tools (cross-correlation analysis and dye tracer tests) to assess response times in karst aquifers -- Quantitative and Geochemical Characterization of the Mokra Karst Aquifer (SE Serbia) by Time Series Analysis and Stochastic Modelling -- Characterization of the isotopic signature of effective rainfall (δ18O, δ2H) to constrain the groundwater re-charge zones in a Mediterranean karst aquifer -- Application of statistical approaches to piezometry to improve the understanding of the karst aquifer hydrodynamic behavior at the Cadarache CEA center (France) -- Characterization of hydrogeological processes of karst-influenced multi-layered aquifers of basin edge using statistical and geochemical approaches (northern Aquitaine basin, France) -- Implications of Tryptophan-Like-Fluorescence long term monitoring for bacterial detection in a mountainous rural karst aquifer -- What microbial signature means in terms of groundwater dynamics, vulnerability and residence time – Comparison of shallow and deep karst resources -- Deriving major ion concentrations at high resolution from continuous electrical conductivity measurements in karst systems -- ydrogeological characterization and modeling at two test sites of the Apulian karst (Southern Italy) -- Prediction of future interactions between karst and river regarding to climate change based on IPCC scenarios: application to a Mediterranean french river basin (Cèze) -- A smart analytical and numerical interpretation of injection tests in unsaturated, fractured and karstified carbonate reservoirs -- On the choice of performance metric for model calibration scheme using discharge age-information -- Understanding water table fluctuations in a karstic semiarid Mediterranean aquifer through numerical modelling: the case of Almudaina-Segaria aquifer -- Part II: Karst caves, geomorphology, landscape and natural heritage -- Understandig karst conduit size distribution by numerical speleogenesis modeling -- Unroofed cave – an underground form on the karst surface -- Study of Rull Cave dynamics to understand the complex relationships between soil, cave and external atmosphere -- Hydrological and environmental dynamics in the Güixas show cave: tourist exploitation and flood risk management -- Understanding morphosedimentary changes and extreme past floods: the case of Ojo de Valjunquera cave (Iberian Range, Spain) -- Identification of near-surface karst cavities using the posterior population expansion inverse method applied to electrical resistivity data -- Use of terrestrial LiDAR scanner for monitoring of ice thickness in ice caves; examples from Slovenia -- Evidences of past and present cave hypogenesis in the Serrezuela de Carratraca Massif (Málaga, Southern Spain) -- Microstratigraphic analysis of a speleothem from the Nerja Cave (Málaga, Southern Spain) -- Gypsum dissolution rate, new data and challenges -- A Multidisciplinary investigation of karstic subsidence in a Madrid urbanization #148 -- Morphometric comparison of dolines in three karst landscapes developed on different lithologies -- The importance of snow in the hydrogeology of a high relief karst system: Sierra de Tendeñera, in the Pyrenees Mountain range (Huesca, Northern Spain) -- The link between man and water in karst, through examples from Apulia (S Italy) -- Hydrogeological setting of Las Loras UNESCO Global Geopark (Palencia-Burgos, Spain): State of knowledge and needs for water resources sustainability research -- Preliminary hydrogeological investigations for sustainable development in the Courel Mountains UNESCO Global.
    Abstract: This book covers advances in the field of karst from a variety of perspectives to facilitate knowledge and promote interaction between disciplines. New methods are addressed that advance data collection, analysis, and interpretation in a wide range of karst contexts. Case studies are presented to provide examples of advancing science. Issues addressed include karst hydrogeology (water resources assessment, groundwater pollution and protection), methods to study karst aquifers (based on hydrodynamic, hydrochemistry, isotopes, dye tracing, geophysical surveys, and modeling techniques), karst geomorphology and landscape, mining and engineering in karst media (tunnels, dams, etc.), and karst cavities (touristic caves, natural heritage). This book is a resource for scientists around the world to compare problems, results, and solutions. Likewise, the examples included are used in policy decision making in karst regions. Finally, the contributions are used as a tool for university teaching.
    Type of Medium: Online Resource
    Pages: XIII, 254 p. 170 illus., 163 illus. in color. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9783031168796
    Series Statement: Advances in Karst Science,
    URL: https://doi.org/10.1007/978-3-031-16879-6
    DOI: 10.1007/978-3-031-16879-6
    DDC: 551
    Language: English
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  • 2
    Monograph available for loan
    Monograph available for loan
    Contribución del estudio científico de las cavidades kársticas al conocimiento geológico (1999)
    Nerja : Patronato de la Cueva der Nerja. Instituto de Investigación
    Details Availability
    Call number: AWI G1-19-92510
    Type of Medium: Monograph available for loan
    Pages: 592 Seiten , Illustrationen
    ISBN: 84-920268-6-3
    Language: Spanish , English
    Note: ÍNDICE PRÓLOGO INTRODUCCIÓN El estudio científico de las cavidades kársticas y las Ciencias Geológicas. Una buena alianza / J.J. Durán. KARST, TECTÓNICA Y SISMICIDAD Evidencias tectónicas y sísmicas a partir del estudio de espeleotemas: conocimiento actual y desarrollo futuro / P. Forti Evolución tectosedimentaria del entorno de la Cueva de Nerja durante el Plio-Cuatemario. / A. Guerra-Merchán, D. Ramallo y F. Serrano Análisis de la fracturación reciente en los espelotemas de la Cueva de Nerja, Málaga. / P. Gumiel, J.J. Durán, J. López-Martínez, J.M. González-Casado, B. Andreo y F. Carrasco La fracturación en la Cueva de los Enebralejos, Segovia, borde norte del Sistema Central. / J. Barea, J.J. Durán, J. Giner, J.M. González-Casado y J. López-Martínez Control estructural de la cavidad kárstica "La Cuevona" (Ribadesella, Asturias) / J. L. Alonso, J. G. García-Ramos y M. Gutiérrez-Claverol El karst de la Alquería (Vélez-Rubio, Almería) / A. González y J.A. Martínez The influence of tectonics on karstification of Permian-Carboniferous limestone from westem Serbia. / P. Pavlovic and D. Stojiljkovic Estudio preliminar de la Cueva de Castelar (Ciudad Real). El ejemplo español de karst en rocas cristalinas / C. J. Gavilán, l. Alonso y J.J. Durán REGISTROS SEDIMENTARIOS KÁRSTICOS Y RECONSTRUCCIONES PALEOAMBIENTALES Endokarstic sedimentary records and paleo-environmental reconstructions in caves / D. C. Ford Speleothem records of environmental changes and the past-bases and potential. / Y. Y. Shopov, L. Tsankov, L. N Georgiev, C.J Yonge, H.P.R. Krouse and A.J.T. Jull Significance of Luminescent spelothem records for determination of orbital variations, glaciations and timing of termination-II. / Y.Y. Shopov, D. Stoykova, M. Sanambria, L. Tsankov, D. Ford, L. Georgiev and D. Georgieva Dataciones isotópicas de espeleotemas procedentes de cuevas costeras de Mallorca. Estado actual de las investigaciones / A. Ginés, J. Ginés, J.J. Fornós y P. Tuccimei Estudio isotópico sobre las condiciones de precipitación de "calcitas flotantes" actuales procedentes de tres cuevas en la isla de Mallorca / C. Jiménez de Cisneros y E. Caballero Geoquimica de travertinos procedentes de una fuente termal. Estimaciones sobre su velocidad de formación. / E. Caballero, C. Jiménez de Cisneros y C. Jiménez Travertinos asociados a los manantiales del borde occidental de la Sierra de la Alfaguara (Granada, Sur de España) / B. Andreo, M. Martín-Martín, A. Martín-Algarra y R. Julia Espeleotemas y morfogénesis exokárstica. El ejemplo de la Sierra del Endrinal (Grazalema, Cádiz) / J Rodríguez Vidal, G. Alvarez, L. M. Cáceres, A. Martínez Aguirre y J. M. Alcaraz La evolución de los materiales de acumulación en el Altiplano carbonatado de Cantanhede (NO de Coimbra-Portugal) / A. De Marco y L. A. Dimuccio Cave genesis in karst regions of Balkan Península / D. Vasileva Skocjanske Jame, Slovenia: development of caves related to rock characteristics and rock relief / M. Knez and T. Slabe Facies mineralógicas de las arenas de los rellenos kársticos de la Sierra de Atapuerca (Burgos) / T. Aleixandre y A. Pérez González Mineralogy of cave deposits from Bihor Mountains (Romanía) / L. Ghergari and T. Tamas Análisis polínico de sedimentos en cavidades kársticas: hacia un nuevo desarrollo conceptual / J. S. Carrión, C. Navarro y M. Munuera El karst de la Espluga de Francolí: características fisicas e hidrogeológicas. Interés en la educación ambiental / J M Cervelló, M Monterde, J Ramoneda y A. Freixes Análisis sistemático y ecológico de los roedores del Pleistoceno Superior procedentes de la Cueva de las Ventanas (Granada, España) / A. Ruiz-Bustos y J A. Riquelme Cantal Geology, geomorphology, tectonics and geological map ofthe Cave of Riomurtas (Narcao, Southwest Sardinia). J De Waele and A. Muntoni CONSERVACIÓN DE CAVIDADES: EL IMPACTO ANTRÓPICO La dynamique du milieu souterrain, concepts de base servant a la conservation des grottes / A. Mangin, D. D 'Hulst et F. Bourges L' eclairage et la protection des grottes / F. Bourges, A. Mangin et D. D'Hulst Análisis de las concentraciones de 222Rn del aire de la Cueva de Nerja / C. Dueñas, M.C. Fernández, J Carretero, E. Liger y S. Cañete El medio ambiente subterráneo de la Cueva de Nerja (Málaga). Modificaciones antrópicas / F. Carrasco, B. Andreo, I Vadillo, J.J. Durán y C. Liñán EL AGUA Y EL KARST Recharge and behaviour of karst aquifers. Examples from Southeastem France / J Mudry, Y. Guglielmi, A. Chalumeau, A. Reynaud and Y. Paquette ¿Pueden las teorías sobre el desarrollo del karst contribuir al mejor conocimiento de la moderna hidrogeología del karst? / J Silar Behaviour of the epikarst aquifer: signal analysis and flow analysis. Si te of Lascaux Cave. / R. Lastennet, A. Denis, Ph. Malaurent and J Vouvé Primeros datos sobre la variabilidad estacional de la infiltración en la Cueva del Agua (lznalloz, Granada) / F. Sánchez-Martos, J. M Calaforra y M J González-Ríos Primeros resultados sobre la caracterización hidroquímica y evolución espacial de las aguas del sistema kárstico de Valporquero, Cordillera Cantábrica / JJ Durán, M Vallejo, l. Herráez y J López-Martínez Hidrodinámica e hidroquímica de las aguas de goteo de la Cueva de Nerja / C. Liñán, B. Andreo, F Carrasco e l. Vadillo Modelización de los procesos hidrogeoquímicos que afectan al agua de goteo de la Cueva de Nerja / J. Cardenal, J. Benavente, B. Andreo y F. Carrasco Algunos procesos hidrogeoquímicos en la Cueva de Canalobre y en el acuífero del Cabeçó D'Or (Alicante) / J. M Andreu, J.C. Cerón, A. Pulido-Bosch y A. Estévez Tracing technique as a contribution to karstology: past experience, new directions / Ph. Meus and C. Ek Ensayos de trazadores en acuíferos kársticos: desarrollo histórico y anecdotario / J. G. Yélamos Trazados en la Unidad Hidrogeológica Izarraitz (País Vasco): consideraciones sobre la complejidad estructural y dinámica del medio kárstico / l. Mugerza, T. Morales, l. Antigüedad, J.A. Uriarte, l. Fernández de Valderrama, J.M Gonzalo y P. Bezares d18O and average recharge-altitude relationships in karstic springs / Th. Herold, S.M. Bernasconi, P. Jordan and F. Zwahlen Concentración inicial de radiocarbono en agua subterránea del karst de Bohemia central / J. Silar y K. Záhrubsky Los sistemas kársticos del Parque Natural del Cadí-Moixeró (Pirineo oriental, Catalunya) / J. Ramoneda, A. Freixes, M. Monterde, J. P. Morin y L. Gourcy Hidroquímica de la Sierra de Guara / J. A. Cuchí, J.A. Manso, M. Subías y J. Buera Nuevas aportaciones sobre el funcionamiento hidrogeológico del acuífero kárstico multicapa del Calar del Mundo (Provincias de Albacete y Jaén) / T. Rodríguez-Estrella Posible contribución del karst de Los Berros (Argentina) para el abastecimiento a la industria de la región / C. Wetten y O.A. Damiani Karst groundwater quality in Austria / M. Kralik Modelo numérico del flujo subterráneo de un acuífero kárstico en Yucatán, México. Implicaciones hidrogeológicas / R. González, l. Sánchez y J. Gamboa Aprovechamiento de manantiales kársticos de carácter intermitente mediante operaciones de recarga artificial de acuíferos. Las Ufanes de Gabellí (Mallorca) / J. M Murillo, C.J. Gavilán, J.A. de la Orden The karstic aquifer ofthe Izhora Plateau (Russia) and problems ofits use under anthropogenic pressure / A. N Voronov, NA. Vinograd and A.A. Shvarts Aspects of groundwater vulnerability mapping in karst regions with the help of GIS / P.S. Bezrukov Natural and anthropogenic influences as threats to pits in the Debeli Namet Glacier (Durmitor National Park, Montenegro) / P. Djurovic Carbon inorganic total dissolved origine, repartition and it's karstification impact / C. Emblanch, H. Celle, B. Blavoux and J. M. Puig , Beiträge teilweise in spanischer, teilweise in englischer Sprache
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  • 3
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    The Global Seismic Moment Rate of Mars After Event S1222a (2023)
    Details
    Publication Date: 2023-07-20
    Description: The seismic activity of a planet can be described by the corner magnitude, events larger than which are extremely unlikely, and the seismic moment rate, the long‐term average of annual seismic moment release. Marsquake S1222a proves large enough to be representative of the global activity of Mars and places observational constraints on the moment rate. The magnitude‐frequency distribution of relevant Marsquakes indicates a $b$‐value of 1.06. The moment rate is likely between $1.55\times {10}^{15}\mathrm{N}\mathrm{m}/\mathrm{a}$ and $1.97\times {10}^{18}\mathrm{N}\mathrm{m}/\mathrm{a}$, with a marginal distribution peaking at $4.9\times {10}^{16}\mathrm{N}\mathrm{m}/\mathrm{a}$. Comparing this with pre‐InSight estimations shows that these tended to overestimate the moment rate, and that 30% or more of the tectonic deformation may occur silently, whereas the seismicity is probably restricted to localized centers rather than spread over the entire planet.
    Description: Plain Language Summary: The seismic moment rate is a measure for how fast quakes accumulate deformation of the planet's rigid outer layer, the lithosphere. In the past decades, several models for the deformation rate of Mars were developed either from the traces quakes leave on the surface, or from mathematical models of how quickly the planet's interior cools down and shrinks. The large marsquake that occurred on the 4th of May 2022 now allows a statistical estimation of the deformation accumulated on Mars per year, and thus to confront these models with reality. It turns out that, although there is a considerable overlap, the models published prior to InSight tend to overestimate the seismic moment rate, and hence the ongoing deformation on Mars. Possible explanations are that 30% or more of the deformation occurs silently, that is, without causing quakes, or that not the entire planet is seismically active but only specific regions.
    Description: Key Points: A single large marsquake suffices to constrain the global seismic moment rate. Pre‐InSight estimations tended to overestimate the moment rate. Either a significant part of the ongoing deformation occurs silent, or seismic activity is restricted to some activity centers, or both.
    Description: Eidgenössische Technische Hochschule Zürich http://dx.doi.org/10.13039/501100003006
    Description: National Aeronautics and Space Administration http://dx.doi.org/10.13039/100000104
    Description: UK Space Agency http://dx.doi.org/10.13039/100011690
    Description: Deutsches Zentrum für Luft‐ und Raumfahrt http://dx.doi.org/10.13039/501100002946
    Description: Insight SFI Research Centre for Data Analytics http://dx.doi.org/10.13039/501100021525
    Description: http://dx.doi.org/10.18715/SEIS.INSIGHT.XB_2016
    Description: http://doi.org/10.17189/1517570
    Keywords: ddc:523 ; Mars ; InSight ; seismic moment rate ; S1222a
    Language: English
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    Stratus over rolling terrain: Large‐eddy simulation reference and sensitivity to grid spacing and numerics (2022)
    John Wiley & Sons, Ltd | Chichester, UK
    Details
    Publication Date: 2024-01-15
    Description: The formation of low stratus cloud over idealized hills is investigated using numerical model simulations. The main driver for the cloud formation is radiative cooling due to outgoing longwave radiation. Despite a purely horizontal flow, the advection terms in the prognostic equations for heat and moisture produce vertical mixing across the upper cloud edge, leading to a loss of cloud water content. This behavior is depicted via a budget analysis. More precisely, this spurious mixing is caused by the diffusive error of the advection scheme in regions where the sloping surfaces of the terrain‐following vertical coordinate intersect the cloud top. This study shows that the intensity of the (spurious) numerical diffusion depends strongly on the horizontal resolution, the order of the advection schemes, and the choice of scalar advection scheme. A large‐eddy simulation with 4‐m horizontal resolution serves as a reference. For horizontal resolutions of a few hundred meters and simulations carried out with a model setup as used in numerical weather prediction, a strong reduction of the simulated liquid‐water path is observed. In order to keep the (spurious) numerical diffusion at coarser resolutions small, at least a fifth‐order advection scheme should be used. In the present case, a weighted essentially nonoscillatory scalar advection scheme turns out to increase the numerical diffusion along a sharp cloud edge compared with an upwind scheme. Furthermore, the choice of vertical coordinate has a strong impact on the simulated liquid‐water path over orography. With a modified definition of the sigma coordinate, it is possible to produce cloud water where the classical sigma coordinate does not allow any cloud formation.
    Description: Diffusive errors of the advection scheme reduce the cloud water content of low stratus over idealized hills. This is due to the terrain‐following vertical coordinate and depends strongly on the horizontal resolution. Orographic features should be represented by at least 𝒪(10) grid points and a fifth‐order advection scheme (or higher) should be used. A weighted essentially nonoscillatory scalar advection scheme increases numerical diffusion along a sharp cloud edge compared with an upwind scheme. Modifying the definition of the sigma coordinate leads to a strong gain in the simulated liquid‐water path.
    Description: Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659
    Description: Hans Ertel Centre for Weather Research
    Keywords: ddc:551.5 ; advection ; fog ; low stratus ; resolution ; rolling terrain ; vertical coordinate
    Language: English
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    Improving Air Force Enterprise Resource Planning-Enabled Business Transformation (2023)
    RAND Corporation
    Details
    Publication Date: 2023-10-05
    Description: RAND Project AIR FORCE identified key conditions to aid the success of business transformation enabled by enterprise resource planning systems, challenges the Air Force must address to achieve them, and options for overcoming these challenges.
    Keywords: Technology ; Business ; Management & Organizational Behavior ; bic Book Industry Communication::K Economics, finance, business & management::KJ Business & management::KJC Business strategy ; bic Book Industry Communication::K Economics, finance, business & management::KJ Business & management::KJU Organizational theory & behaviour ; bic Book Industry Communication::T Technology, engineering, agriculture::TT Other technologies & applied sciences::TTM Military engineering
    Language: English
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  • 6
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    Prolonged Cycle Times and Schedule Growth in Defense Acquisition (2023)
    RAND Corporation
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    Publication Date: 2024-04-04
    Description: This report summarizes a selection of the defense acquisition literature from the 1960s to the present on potential sources of prolonged acquisition cycle times and schedule growth, as well as potential opportunities for improvement. It presents the range of possible causes of schedule-related problems and various recommendations cited for improving schedules by various authors and organizations.
    Keywords: Technology ; History ; thema EDItEUR::N History and Archaeology::NH History::NHW Military history ; thema EDItEUR::N History and Archaeology::NH History::NHK History of the Americas ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TT Other technologies and applied sciences::TTM Military engineering
    Language: English
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    Mo Yan in Context (2021)
    Purdue University Press
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    Publication Date: 2022-05-02
    Description: This is the first English-language study of the Chinese writer’s work and influence, featuring essays from scholars in a range of disciplines, from both China and the United States. Its introduction, twelve articles, and epilogue aim to deepen and widen critical discussions of both a specific literary author and the globalization of Chinese literature more generally. The book takes the “root-seeking” movement with which Mo Yan’s works are associated as a metaphor for its organizational structure. The four articles of “Part I: Leaves” focus on Mo Yan’s works as world literature, exploring the long shadow his works have cast globally.
    Keywords: Literature ; Buddhism ; China ; Mo Yan
    Language: English
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    CTBTO: Goals, Networks, Data Analysis and Data Availability (2012)
    In:  New Manual of Seismological Observatory Practice 2 (NMSOP-2)
    Details
    Publication Date: 2020-02-12
    Language: English
    Type: info:eu-repo/semantics/bookPart
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    Modeled Microbial Dynamics Explain the Apparent Temperature Sensitivity of Wetland Methane Emissions (2020)
    In:  Global Biogeochemical Cycles
    Details
    Publication Date: 2020-12-14
    Description: Methane emissions from natural wetlands tend to increase with temperature and therefore may lead to a positive feedback under future climate change. However, their temperature response includes confounding factors and appears to differ on different time scales. Observed methane emissions depend strongly on temperature on a seasonal basis, but if the annual mean emissions are compared between sites, there is only a small temperature effect. We hypothesize that microbial dynamics are a major driver of the seasonal cycle and that they can explain this apparent discrepancy. We introduce a relatively simple model of methanogenic growth and dormancy into a wetland methane scheme that is used in an Earth system model. We show that this addition is sufficient to reproduce the observed seasonal dynamics of methane emissions in fully saturated wetland sites, at the same time as reproducing the annual mean emissions. We find that a more complex scheme used in recent Earth system models does not add predictive power. The sites used span a range of climatic conditions, with the majority in high latitudes. The difference in apparent temperature sensitivity seasonally versus spatially cannot be recreated by the non‐microbial schemes tested. We therefore conclude that microbial dynamics are a strong candidate to be driving the seasonal cycle of wetland methane emissions. We quantify longer‐term temperature sensitivity using this scheme and show that it gives approximately a 12% increase in emissions per degree of warming globally. This is in addition to any hydrological changes, which could also impact future methane emissions.
    Language: English
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    New discoveries about the cores of Mars and the Earth (2023)
    In:  XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
    Details
    Publication Date: 2023-08-29
    Description: More than one hundred years of seismological, mineralogical and geophysical research have shed light on the properties and evolution of Earth’s core. A liquid outer core, hosting the geodynamo, and a solid inner core, growing slowly at the expense of the outer core, together span roughly half of Earth’s diameter. The presence of a light-element enriched layer at the core-mantle interface, along with layering and lateral variation deeper in the core remain areas of active investigation. In contrast, the first confirmed marsquakes, detected by the InSight mission, were recorded only in 2019. Thus we have enjoyed only a few years of in-situ seismic observations of waves propagating through Mars’ interior. With well over a thousand seismic events detected in InSight’s operational life, seismic waves have been detected from marsquakes and impacts at large and small epicentral distances. Two seismic events have permitted the detection of core-transiting seismic (SKS) waves. These observations have enabled the estimation of the elastic properties of Mars’ liquid core and allowed inferences to be made about its composition, which is enriched in light elements when compared to Earth. This presentation will highlight new discoveries about Mars’ core and put them into context by comparing them with known and unknown features of Earth’s core.
    Language: English
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