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  • 1
    Keywords: Chemistry ; Food science
    ISBN: 9780387754307
    Language: English
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  • 2
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    Rijeka : InTech
    Keywords: computer science ; information science ; knowledge representation
    Description / Table of Contents: Advances in Knowledge Representation offers a compilation of state of the art research works on topics such as concept theory, positive relational algebra and k-relations, structured, visual and ontological models of knowledge representation, as well as detailed descriptions of applications to various domains, such as semantic representation and extraction, intelligent information retrieval, program proof checking, complex planning, and data preparation for knowledge modelling, and a extensive bibliography. It is a valuable contribution to the advancement of the field. The expected readers are advanced students and researchers on the knowledge representation field and related areas; it may also help to computer oriented practitioners of diverse fields looking for ideas on how to develop a knowledge-based application.
    Pages: Online-Ressource (272 Seiten)
    ISBN: 9789535105978
    Language: English
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  • 3
    Description / Table of Contents: “Geodynamics of the Mexican Pacific Margin” presents the results of studies from various disciplines whose common goal is to better understand the complex geodynamic processes that exist along the Pacific margin of Mexico. The seventeen papers include contributions in the fields of seismology, marine geophysics, geomorphology, petrology, geodesy, and subductology presented by investigators from Mexico, France, Spain, and the USA. These contributions illustrate why the Mexican Pacific margin is fertile ground for investigating a wide and rare combination of current geodynamic processes such as subduction, continental rifting and associated seismicity, deformations and magmatism. The volume will be useful to a diverse group of investigators whose interests include the geodynamics of western Mexico in particular, and geodynamics in general.
    Pages: Online-Ressource (284 Seiten)
    ISBN: 9783034801966
    Language: English
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  • 4
    Call number: 94.0530
    In: Special paper
    Pages: v, 153 S.
    ISBN: 0813722780
    Series Statement: Special paper / Geological Society of America 278
    Classification:
    Regional Geology
    Language: English
    Branch Library: GFZ Library
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  • 5
    Keywords: MATLAB ; electric power
    Description / Table of Contents: Chapter 1: Rational Fitting Techniques for the Modeling of Electric Power Components and Systems Using MATLAB Environment by Eduardo Salvador Bañuelos-Cabral, José Alberto Gutiérrez-Robles and Bjørn Gustavsen
    Pages: Online-Ressource (56 Seiten)
    ISBN: 9789535136743
    Language: English
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  • 6
    Publication Date: 2023-06-21
    Description: The European CORDEX (EURO-CORDEX) initiative is a large voluntary effort that seeks to advance regional climate and Earth system science in Europe. As part of the World Climate Research Programme (WCRP) - Coordinated Regional Downscaling Experiment (CORDEX), it shares the broader goals of providing a model evaluation and climate projection framework and improving communication with both the General Circulation Model (GCM) and climate data user communities. EURO-CORDEX oversees the design and coordination of ongoing ensembles of regional climate projections of unprecedented size and resolution (0.11° EUR-11 and 0.44° EUR-44 domains). Additionally, the inclusion of empirical-statistical downscaling allows investigation of much larger multi-model ensembles. These complementary approaches provide a foundation for scientific studies within the climate research community and others. The value of the EURO-CORDEX ensemble is shown via numerous peer-reviewed studies and its use in the development of climate services. Evaluations of the EUR-44 and EUR-11 ensembles also show the benefits of higher resolution. However, significant challenges remain. To further advance scientific understanding, two flagship pilot studies (FPS) were initiated. The first investigates local-regional phenomena at convection-permitting scales over central Europe and the Mediterranean in collaboration with the Med-CORDEX community. The second investigates the impacts of land cover changes on European climate across spatial and temporal scales. Over the coming years, the EURO-CORDEX community looks forward to closer collaboration with other communities, new advances, supporting international initiatives such as the IPCC reports, and continuing to provide the basis for research on regional climate impacts and adaptation in Europe.
    Keywords: ddc:551.6 ; EURO-CORDEX ; CORDEX ; Climate change ; Regional climate models ; Regional climate modelling
    Language: English
    Type: doc-type:article
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  • 7
    Publication Date: 2024-01-19
    Description: 〈title xmlns:mml="http://www.w3.org/1998/Math/MathML"〉Abstract〈/title〉〈p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en"〉The páramos are Neotropical alpine tundra‐like ecosystems that play a crucial role as biodiversity hotspots and also act as water sources for the inter‐Andean regions and cities. Improving our understanding of hydrological processes, here evapotranspiration, is crucial, especially in the context of global changes. In páramos, most research have focused on estimating potential evapotranspiration (ETo) using the Penman–Monteith method. Only a few studies have quantified actual evapotranspiration using mostly the Eddy covariance method (EC) or volumetric lysimeters. Importantly, these studies focused only on tussock grass communities, and none have addressed the effect of other plant communities specific to páramos on the actual evapotranspiration of this ecosystem. In this research, portable closed chambers were installed for the first time in a páramo (in 〈italic〉Los Nevados〈/italic〉 National Park, between 3900 and 4100 masl) to quantify actual evapotranspration (ETa) in March and May 2019 in three representative plant communities of the páramo (giant rosettes, shrubs and tussock grasses). The ETa rates measured were then compared with ETo estimated using the Penman–Monteith method. Also, environmental factors of solar radiation, temperature and relative humidity were recorded and their influence on ETa variation was analysed. Our results indicate that ETa daily rates were very low with a high daily variation (0.290 ± 0.266 mm day〈sup〉−1〈/sup〉). The shrubs showed higher ETa rates even though differences among communities were not significant. ETo rates calculated via the Penman–Monteith method were significantly higher (1.017 ± 0.468 mm day〈sup〉−1〈/sup〉) than those measured using the portable chambers. Portable closed chamber is a promising method to assess ETa at small spatial and time scales and under controlled environment; however, they should be improved to enable ETa measurements on longer time periods. This study confirms the highly variable and low evapotranspiration rate of the páramo vegetation, here confirmed across different plant communities and underlines the importance of solar radiation and temperature, which were positively correlated with evapotranspiration rates.〈/p〉
    Keywords: Calamagrostis ; Espeletia ; evapotranspiration ; high altitude ecosystem ; Penman–Monteith ; Pentacalia ; stomatal conductance
    Language: English
    Type: doc-type:article
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  • 8
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    In:  The Roads From Rio: Lessons Learned from Twenty Years of Multilateral Environmental Negotiations
    Publication Date: 2022-02-18
    Language: English
    Type: info:eu-repo/semantics/bookPart
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  • 9
    Publication Date: 2024-01-24
    Description: The summer of 2018 was an extraordinary season in climatological terms for northern and central Europe, bringing simultaneous, widespread, and concurrent heat and drought extremes in large parts of the continent with extensive impacts on agriculture, forests, water supply, and socio-economic sector. Here, we present a comprehensive, multi-faceted analysis of the 2018 extreme summer in terms of heat and drought in central and northern Europe, with a particular focus on Germany. The heatwave first affected Scandinavia by mid-July, shifted towards central Europe in late July, while Iberia was primarily affected in early August. The atmospheric circulation was characterized by strongly positive blocking anomalies over Europe, in combination with a positive summer North Atlantic Oscillation and a double jet stream configuration before the initiation of the heatwave. In terms of possible precursors common to previous European heatwaves, the Eurasian double jet structure and a tripolar sea-surface temperature anomaly over the North Atlantic were identified already in spring. While in the early stages over Scandinavia the air masses at mid- and upper-levels were often of remote, maritime origin, at later stages over Iberia the air masses had primarily a local-to-regional origin. The drought affected Germany the most, starting with warmer than average conditions in spring, associated with enhanced latent heat release that initiated a severe depletion of soil moisture. During summer, a continued precipitation deficit exacerbated the problem, leading to hydrological and agricultural drought. A probabilistic attribution assessment of the heatwave in Germany showed that such events of prolonged heat have become more likely due to anthropogenic global warming. Regarding future projections, an extreme summer such as this of 2018 is expected to occur every two out of three years in Europe under a 1.5 °C warmer world and virtually every single year under 2 °C of global warming. With such large-scale and impactful extreme events becoming more frequent and intense under anthropogenic climate change, comprehensive and multi-faceted studies like the one presented here quantify the multitude of effects and provide valuable information as basis for adaptation and mitigation strategies.
    Language: English
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Format: application/pdf
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  • 10
    Publication Date: 2024-03-14
    Description: Crop models are essential tools for assessing the impact of climate change on national or regional agricultural production. Starting from meteorology, soil and crop management, fertilization and irrigation practices, they predict the yield of specific crop varieties. For long term assessments, climate models are the source of primary information. To make climate model results usable in a specific time frame context, bias adjustment (BA) is required. In fact, climate models tend to deviate from day-to-day values of the physical parameters while conserving the climate variability signal. BA brings the climatic signal to the actual values observed in a specific location and period, and to be representative of a specific period in absolute terms. BA techniques come in different flavours. The broadest categorization is univariate and multivariate methods. Multivariate methods adjust the variables considering possible cross-correlations while univariate methods treat the variables one by one without accounting for possible dependence on one another.
    Language: English
    Type: info:eu-repo/semantics/article
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