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  • 1
    Keywords: Paleoclimatology-Congresses. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (179 pages)
    Edition: 1st ed.
    ISBN: 9783030015992
    Series Statement: Advances in Science, Technology and Innovation Series
    Language: English
    Note: Intro -- Preface -- Contents -- About the Editors -- Keynote -- 1 Fifty Years of Paleoceanography: Major Achievements in Our Understanding of Past and Future Climate Change-Some Memories and Hearsay -- Abstract -- 1 Preliminary Note -- 2 Early Efforts -- 3 Sample Basis to Gain Empiric Proxy Data from Deep-Sea Sediments -- 4 Great Advances in the 1970s and 1980s -- 5 Some Contributions of Kiel University (Germany) -- 6 Selection of Major Findings Over the Last 20 Years -- References -- Paleoceanographic Evolution -- 2 Orbital-Scale Paleoceanographic Response to the Indian Monsoon in the Laxmi Basin of the Eastern Arabian Sea -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 3.1 Age Reconstruction at Site U1456 -- 3.2 Orbital-Scale Paleoceanographic Changes -- References -- 3 The 4.2 ka Event in the Euro-Mediterranean Region-A Study from the MISTRALS/ PALEOMEX Program -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusions -- Acknowledgments -- References -- 4 Record of Early Cretaceous Oceanic Anoxic Events in Adriatic Platform, Croatia -- Abstract -- 1 Introduction -- 2 Methods -- 3 Results -- 4 Discussion -- 5 Conclusion -- References -- 5 Sedimentological and Geochemical Records of Lower Cretaceous Carbonate Successions Around Trabzon (NE Turkey): Implications for Paleoenvironmental Evolution and Paleoclimatological Conditions of Tethys -- Abstract -- 1 Introduction -- 2 Methods -- 3 Results -- 3.1 Microfacies -- 3.2 Stable Isotope Analysis -- 4 Discussion -- 5 Conclusions -- Acknowledgements -- References -- Paleoclimate Evolution -- 6 Paleoclimate Evolution of the Kordofan Region (Sudan), During the Last 13 ka -- Abstract -- 1 Introduction -- 2 Methodology -- 3 Results -- 3.1 Sedimentology and Stratigraphy -- 3.2 Paleobiology -- 3.3 Stable Isotopes. , 3.4 Geochemistry and Clay Mineralogy -- 4 Discussion -- 5 Conclusion -- References -- 7 Use of Paleoclimate Rainfall Data to Detect Mega Drought Signals -- Abstract -- 1 Introduction -- 2 Data and Methods -- 2.1 Chuk-Woo-Kee (Korean Ancient Rain Gauge) -- 2.2 Precipitation -- 2.3 Drought Index -- 3 Results -- 3.1 Drought Periodicity -- 3.2 Mega Drought -- 4 Conclusions -- Acknowledgements -- References -- 8 Paleoclimatology Evidence of Eocene from Jaddala Formation in Northwestern Iraq -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- References -- 9 Holocene Paleoclimatic Variation Inferred from Study of Sediments in the Gulf of Tunis (North Africa) -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 3.1 Lithological Changes and Climatic Fluctuations -- 3.2 Mineralogical Study of Holocene Sediments -- 3.3 Evolution of the Lake Environment Recorded by Macrofauna Study -- 3.4 Study of the Organic Content of the Holocene Sediments -- 4 Results and Discussion -- 5 Conclusion -- References -- 10 Noble Gas Recharge Temperature of Sfax Deep Groundwater (Southeastern of Tunisia) -- Abstract -- 1 Introduction -- 2 Settings, Sampling and Analysis -- 3 Results -- 4 Discussion -- 5 Conclusions -- References -- 11 Time Analysis of Emberger's Pluviothermic Q Index in the SW of the Iberian Peninsula -- Abstract -- 1 Introduction -- 2 Study Area and Method -- 3 Results and Valuation -- 4 Conclusion -- References -- 12 Systematic and Palaeoclimatic Investigations of Sivalhippus from the Late Miocene Siwaliks (Pakistan) -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 3.1 Systematic Palaeontology -- 4 Discussion -- 5 Conclusion -- References -- 13 The Thar Desert Calcretes: A Proxy for Understanding Late Quaternary Paleoclimate Shifts -- Abstract -- 1 Introduction -- 2 Materials and Methods. , 3 Results -- 4 Discussion -- 5 Conclusion -- References -- Paleoenvironmental Evolution -- 14 Using Environmental Isotopes and Krypton-81 to Characterize and Date Continental Intercalaire Paleogroundwater (Southern Tunisia) -- Abstract -- 1 Introduction -- 2 Settings, Sampling and Analysis -- 3 Results -- 3.1 Chemical Composition -- 3.2 Environmental Isotopes (δ18O, δ2H, 14C, δ13C) -- 3.3 Concentration of 81Kr -- 4 Discussion -- 5 Conclusion -- References -- 15 Water Column Chemistry of Late Holocene Lake Bafa, Eastern Coast of the Aegean Sea (Turkey) -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 4 Discussion -- 5 Conclusions -- Acknowledgements -- References -- 16 New Reports of Messinian Lago-Mare Episodes from Tunisia: Ostracods and Paleoenvironmental Implications -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 3.1 Wadi El Kebir Section -- 3.2 Salakta Section -- 4 Discussion (Paleontology) -- 5 Conclusions -- References -- 17 Geochemical Evidences of Paleoenvironmental Changes in Late Quaternary Lacustrine Sediments of the Konya Closed Basin (Konya, Turkey) -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 3.1 Detrital Influx Proxies -- 3.2 Redox Proxies -- 3.3 Paleoproductivity Proxies -- 4 Conclusions -- References -- 18 Reconstruction of Holocene Paleoenvironmental Changes Along Northern Coast of Sfax: Analysis of Foraminiferal Associations -- Abstract -- 1 Introduction -- 2 Settings -- 3 Results -- 4 Discussion -- 4.1 Tyrrhenian Sea-Level High Stand, Substage 5e -- 4.2 First Holocene Marine Transgression 2018-2419a Cal BP in Age -- 4.3 Period of Sand Spits Development, Between 2018-2419 and 1001-1804 a Cal BP) -- 4.4 Second Marine Transgression Towards 1001-1804 a Cal BP -- 4.5 High Energy Extreme Event Towards 0-502 a Cal BP -- 5 Conclusion -- References. , 19 Evolution of Korba Lagoon (Cap Bon, Tunisia) During the Last Millennia Based on the Analysis of Foraminiferal Assemblages -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 3.1 Lithology, Geochemistry and Sedimentology -- 3.2 Distribution of Foraminiferal Associations -- 4 Discussion -- 5 Conclusions -- References -- 20 Paleoenvironment Evolution of a Paralic System, El Guettiate and Dreïaa Sebkhas (Gulf of Gabès, Tunisia) -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusions -- References -- Spatio-temporal Patterns of Climate Change -- 21 Testing for Collective Statistical Significance in Climate Change Detection Studies -- Abstract -- 1 Introduction -- 2 Statistical Tests and Synthetic Data -- 3 Application to Real-World Data -- 4 Conclusions -- Acknowledgements -- References -- 22 Long-Term Variability of Gauged Precipitation Over California and Its Links to Circulation Patterns -- Abstract -- 1 Introduction -- 2 Data and Methods -- 3 Results -- 4 Discussion -- 5 Conclusions -- References -- 23 Sensitivity of IDF Curves to Rainfall Gauge Type -- Abstract -- 1 Introduction -- 2 Materials and Method -- 3 Results and Discussion -- 4 Conclusions -- References -- 24 Structural Characteristics of Precipitation in Jordan -- Abstract -- 1 Introduction -- 2 Study Area and Methodology -- 3 Results -- 3.1 Consistency -- 3.2 Randomness -- 3.3 Trend -- 4 Discussion -- 5 Conclusions -- References -- 25 The Shift of the Atmospheric Circulation Patterns and Its Impacts on Western Mediterranean -- Abstract -- 1 Introduction -- 2 Data and Methods -- 3 The New Meridian Atmospheric Circulation (MAC) and Its Effects on Floods and Drought in Western Mediterranean -- 3.1 "Normal" Atmospheric Circulation -- 3.2 "Current" Atmospheric Circulation -- 4 Conclusion -- References. , 26 Recent Rainfall Variability in the South-West Mediterranean Region and Links with Teleconnection Patterns -- Abstract -- 1 Introduction -- 2 Methods -- 3 Results -- 3.1 Rainfall Variability Analysis -- 3.2 Links Between Rainfall and Climate Indices -- 4 Discussion -- 5 Conclusions -- References -- 27 Regionalization of Precipitation in Jordan -- Abstract -- 1 Introduction -- 2 Study Area and Methodology -- 3 Results and Discussion -- 3.1 Temporal Analysis (Months Clusters) -- 3.2 Spatial Analysis -- 4 Conclusions -- References -- 28 Correlation Between NAO and Radio Refractive Index Over Africa -- Abstract -- 1 Introduction -- 2 Methodology -- 3 Results -- 4 Discussion -- 5 Conclusions -- References -- 29 Convective Cloud Climatology Over Indian Tropics and Nearby Regions Using Multi-spectral Satellite Observations -- Abstract -- 1 Introduction -- 2 Study Area and Data Sets -- 3 Methodology -- 4 Results and Discussion -- 5 Conclusions -- References -- 30 Analysis of Trend and Variability in Time Series of Extreme Daily Temperature of Abu Dhabi City (UAE) -- Abstract -- 1 Introduction -- 2 Methodology -- 3 Results and Discussion -- 4 Conclusion -- References -- 31 Black Carbon Aerosol Characteristics and Its Radiative Effect in Xuzhou City, China -- Abstract -- 1 Introduction -- 2 Data and Method -- 3 Results -- 3.1 Seasonal Variation of Black Carbon Aerosol Concentration -- 3.2 Radiative Forcing Caused by Black Carbon Aerosol -- 4 Discussion and Conclusions -- Acknowledgements -- References -- Sea Level Variability: Past, Present and Future -- 32 On the Long-Term Mediterranean Sea Level Variability -- Abstract -- 1 Introduction -- 2 The Data -- 3 Results -- 4 Conclusions -- References -- 33 Impacts of Relative Sea Level Change and Sedimentary Dynamic on an Historic Site Expansion Along the Coast Between Sfax and Jebeniena, Tunisia -- Abstract. , 1 Introduction.
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  • 2
    Keywords: Environmental sciences-Research-Congresses. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (1761 pages)
    Edition: 1st ed.
    ISBN: 9783319705484
    Series Statement: Advances in Science, Technology and Innovation Series
    DDC: 363.70071
    Language: English
    Note: Intro -- Preface -- Highlights -- Summary -- Acknowledgements -- Honorary Chair -- General Chair -- Scientific Committee Chair -- Public Relations Chair -- Corporate Relations Chair -- Publications Chair -- Program/Submissions Chair -- Conference Manager -- Conference Scientific Committee -- Local Organization Committee -- About the Conference Manager -- Conference Organizing Committee -- Contents -- About the Editors -- Keynote Lectures and Workshops -- 1 New Pathways in the Synthesis of 2-Dimensional Materials -- Acknowledgements -- References -- 2 Environmental Risk Assessment of Pesticides in Soil: Does It Have to Be Different in Different Regions? -- References -- 3 New Challenges for the Ecological Risk Assessment of Plant Protection Products to Soil Organisms in the EU -- References -- 4 Hydrogeochemical Assesment of Groundwater Quality: A Case Study of a Wetland System in Central Italy -- References -- 5 Novel Ozone Oxidation Process for Emerging Contaminants Removal in Water -- References -- 6 Wastewater Treatment and Energy Production Through Electro Membrane Bioreactors -- Acknowledgments -- References -- 7 Implications of Sulphide on Trace Metal Pollution Mobility in Sediment -- References -- 8 Remediation of Selenium Contaminated Wastewater -- References -- 9 Services and Dysservices of Collective Gardens in Urban Areas: A Soil Perspective -- References -- 10 R& -- D for Clean Energy Production Through Responsible Utilization of Various Feedstocks Including Coal, Biomass, and Hydrocarbons -- 11 Can ICZM Help the Resilience of Disappearing Beaches in the Face of Climate Change? -- References -- 12 Assessment of the Impact of Dams on River Regimes, Sediment Transports to the Sea, and Coastal Changes -- 13 Evolution of GSDs in the Coastal Zone, New Insights -- References. , 14 Geodata the Tool for Environmental and Sustainable Spatial Planning -- 15 Earthquake Faulting and Their Implications for the Seismic Hazard Assessment Along the Plate Boundary in North Africa -- 1 Neotectonic Characteristics of the Rif and Tell Atlas Mountains -- 2 Seismotectonic and Stress Transfer -- 3 Seismic Hazard Implications -- References -- 16 Cryptosporidium: Waterborne and Foodborne Transmission and Worldwide Outbreaks -- References -- 17 Springer Workshop on How to Get Published in a Scientific Journal: Tips from Springer Editors -- 18 Editing a Paper from Submission to Publication -- 19 3rd Workshop of the Euro-Mediterranean Consortium of Higher Education and Industrial Institutions: Freshwater and Climate Change -- 20 An Integrated Environmental Approach-City of Sfax, Tunisia -- 21 Groundwater Exploration in the Solar System: "the Restless Hunt for Life" -- Innovative Approaches and Methods for Environmental Sustainability -- 22 Photocatalytic Membrane Reactor for Sustainable Environmental Remediation -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 3.1 Adsorption Behavior of CHD on to the Catalyst System -- 3.2 Effect of UV Intensity -- 4 Conclusion -- References -- 23 REAGRITECH: A Relevant Model of Sustainable Water Management -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- Acknowledgements -- References -- 24 Zero-Liquid Discharge Desalination of Hypersaline Shale Gas Wastewater: Challenges and Future Directions -- 1 Introduction -- 2 ZLD Desalination for Wastewater Management: Emerging Zero-Emission Technologies -- 3 Challenges of ZLD Desalination of Hypersaline Shale Gas Wastewater -- 4 Future Directions -- Acknowledgements -- References -- 25 Integrating Future Climate Change, CO2 Increase and Technology Progress on Wheat Production in Northern Tunisia. , 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- References -- 26 Terrace Gardens Sustainable Carbon Sinks in Modern Urban Dynamics -- 1 Introduction -- 1.1 Some Key Concept in Carbon Sequestration Through Vegetative Growth -- 2 Materials and Methods -- 2.1 Spacing and Plantation -- 2.2 Calculation of the Weight of Carbon Dioxide Sequestered -- 3 Results and Discussion -- 4 Conclusion -- References -- 27 Urban Morphology for a Better Sustainable Urban Strategy: City of Tunis as a Case Study -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- References -- 28 Water Quality Modeling in the Mediterranean River Basins -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- References -- 29 Characterization of Glauber Hydrate Salt, Recoverable from the Disposal of Lead Batteries, When Used for Thermal Energy Storage -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- Acknowledgements -- References -- 30 Can Conservation Agriculture Sequester Soil Carbon in Northern Tunisia in the Long Run? -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- References -- 31 Climate Change and Water Resources Management in Arab Countries -- 1 Introduction -- 2 Expected Impacts of Climate Change on Egypt -- 3 Conclusion -- References -- 32 Impact of Agricultural Policies on the Technical and Economic Parameters of the Olive Value Chain in the Djelfa Region (Algeria) -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- References -- 33 A New Method to Estimate the Instantaneous Pollutants Emissions from Line Sources -- 1 Introduction -- 2 Materials and Methods -- 3 Application of the Model: Case Study of FANTASIA Area. , 4 Results and Discussion -- 5 Conclusion -- References -- 34 From Phyto to Agromining: Past, Present, and Future Scope -- 1 Overview -- 2 Future Scope -- Acknowledgements -- References -- 35 Fernand Pouillon's Architecture: A Sustainable Model in Algeria -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- References -- 36 Municipal Solid Waste (MSW) Bio-drying: An Experimental Prototype Conception -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- References -- 37 Evaluation of the Inhibiting Effect of Organic Compounds on the Adsorption of Iodine Compounds in Cation-Exchanged Zeolites: A DFT Study -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- Acknowledgements -- References -- 38 A Laboratory Investigation of the Hydraulic Performance of String-Wound Filters -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- References -- 39 Soil Thermal Properties: Effects of Density, Moisture, Salt Concentration and Organic Matter -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- References -- 40 Decolourization of Real Textile Wastewater by the Combination of Photocatalytic and Biological Oxidation Processes -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- 5 Future Directions -- References -- 41 Efficient Removal of Methylene Blue from Aqueous Solutions Using Olive Stone and Rye Straw as Abundant Adsorbents -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 3.1 Breakthrough Curves and Mass Transfer Zone Analysis -- 3.2 The Breakthrough Curves Modeling -- 4 Conclusion -- References -- 42 Thermomechanical Properties of Plastic Films Based on Cassava Starch Reinforced with Kaolin and Metakaolin. , 1 Introduction -- 2 Materials and Methods -- 2.1 Materials -- 2.2 Method -- 3 Results and Discussion -- 4 Conclusion -- References -- 43 Electrocoagulation Process for Simultaneous Nitrate and Phosphate Removal Using Parallel Iron Plates in the Presence of Organic Pollutant: Optimization, Kinetic Study and Energy Consumption Evaluation -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- References -- 44 Fenton-like Catalytic Degradations of Neutral Red in Water Using Cerium Oxide Polishing Powder -- 1 Introduction -- 2 Materials and Methods -- 2.1 Materials -- 2.2 Characterization -- 2.3 Method -- 3 Results and Discussion -- 3.1 Characterization -- 3.2 Heterogeneous Fenton-like Process -- 4 Conclusion -- References -- 45 The Promising Keratin-Biodegradation and Hide-Dehairing Activities of the Keratinase KERUS from Brevibacillus Brevis Strain US575 -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- Acknowledgements -- References -- 46 The Attractive Proprieties of the Keratinase KERQ7 from Bacillus Tequilensis Strain Q7 with Promising Potential for the Leather Bating Process -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- Acknowledgements -- References -- 47 Spinel Ni0.6Zn0.4Fe2O4 Nano-Catalyst: Synthesis, Characterization and Heterogeneous Fenton-like Degradation of Congo Red Azo-Dye -- 1 Introduction -- 2 Materials and Methods -- 2.1 Materials -- 2.2 Ni0.6Zn0.4Fe2O4 (NZF) Nanoparticles Synthesis -- 2.3 Characterization -- 2.4 Method -- 3 Results and Discussion -- 3.1 Characterization -- 3.2 Heterogeneous Fenton-like Process -- 4 Conclusion -- References -- 48 Biodegradation of Urban Stromwater Pollution in a Sequence of Constructed Porous Riffles in a Mediterranean Creek -- 1 Introduction -- 2 Materials and Methods. , 3 Results and Discussion.
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  • 3
    Keywords: Earth sciences ; Earth Sciences ; Environmental sciences ; Environmental chemistry ; Environmental management ; Air pollution ; Water pollution ; Konferenzschrift
    Description / Table of Contents: This volume includes the papers presented during the 1st Euro-Mediterranean Conference for Environmental Integration (EMCEI) which was held in Sousse, Tunisia in November 2017. This conference was jointly organized by the editorial office of the Euro-Mediterranean Journal for Environmental Integration in Sfax, Tunisia and Springer (MENA Publishing Program) in Germany. It aimed to give a more concrete expression to the Euro-Mediterranean integration process by supplementing existing North-South programs and agreements with a new multilateral scientific forum that emphasizes in particular the vulnerability and proactive remediation of the Euro-Mediterranean region from an environmental point of view. This volume gives a general and brief overview on current research focusing on emerging environmental issues and challenges and its applications to a variety of problems in the Euro-Mediterranean zone and surrounding regions. It contains over five hundred and eighty carefully refereed short contributions to the conference. Topics covered include (1) innovative approaches and methods for environmental sustainability, (2) environmental risk assessment, bioremediation, ecotoxicology, and environmental safety, (3) water resources assessment, planning, protection, and management, (4) environmental engineering and management, (5) natural resources: characterization, assessment, management, and valorization, (6) intelligent techniques in renewable energy (biomass, wind, waste, solar), (7) sustainable management of marine environment and coastal areas, (8) remote sensing and GIS for geo-environmental investigations, (9) environmental impacts of geo/natural hazards (earthquakes, landslides, volcanic, and marine hazards), and (10) the environmental health science (natural and social impacts on Human health). Presenting a wide range of topics and new results, this edited volume will appeal to anyone working in the subject area, including researchers and students interested to learn more about new advances in environmental research initiatives in view of the ever growing environmental degradation in the Euro-Mediterranean region, which has turned environmental and resource protection into an increasingly important issue hampering sustainable development and social welfare
    Type of Medium: Online Resource
    Pages: Online-Ressource (LIX, 2023 p. 764 illus., 612 illus. in color, online resource)
    ISBN: 9783319705484
    Series Statement: Advances in Science, Technology & Innovation, IEREK Interdisciplinary Series for Sustainable Development
    Language: English
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  • 4
    Keywords: Biogeosciences ; Paleoecology ; Paleoecology ; Geobiology. ; Environmental geography. ; Konferenzschrift Conference of the Arabian Journal of Geosciences (1. : 2018: Hammamet) 12.11.-15.11.2018 ; Meeresspiegelschwankung ; Paläoklima ; Kongress ; Klimaänderung ; Paläoozeanographie ; Umweltveränderung
    Description / Table of Contents: Middle East and Mediterranean region locates at a crossroad of global climatic patterns. The region is under the influence of a convergence of different maritime conditions which together with extensive adjacent land masses marked by extreme differences in topographical features transporting continental air masses lead to a diverse climate. This edited volume is based on the best papers accepted for presentation during the 1st Springer Conference of the Arabian Journal of Geosciences (CAJG-1), Tunisia 2018. It gives new insights on patterns and mechanisms of past, present and future climate/environmental changes mainly on Middle East and Mediterranean region by international researchers. The book is of interest to all researchers in the fields of climate, paleo-climate and paleo-environmental studies. Main topics include: • Spatio-temporal Patterns of Climate Change • Sea Level Variability • Climate Change Impacts and Migration Schemes • Paleoclimate Evolution • Paleoenvironmental Evolution
    Type of Medium: Online Resource
    Pages: Online-Ressource (XXV, 188 p, online resource)
    Edition: Springer eBook Collection. Earth and Environmental Science
    ISBN: 9783030015992
    Series Statement: Advances in Science, Technology & Innovation, IEREK Interdisciplinary Series for Sustainable Development
    Language: English
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  • 5
    Publication Date: 2021-02-08
    Description: The ultimate, possibly geodynamic control and potential impact of changes in circulation activity and salt discharge of Mediterranean outflow waters (MOW) on Atlantic meridional overturning circulation have formed long-standing objectives in paleoceanography. Late Pliocene changes in the distal advection of MOW were reconstructed on orbital timescales for northeast Atlantic DSDP/ODP sites 548 and 982 off Brittany and on Rockall Plateau, supplemented by a proximal record from Site U1389 west off Gibraltar, and compared to Western Mediterranean surface and deep-water records of Alboran Sea Site 978. From ~3.43 to 3.3 Ma, MOW temperatures and salinities form a prominent rise by 2–4 °C and ~3 psu, induced by a preceding and coeval rise in sea surface and deep-water salinity and increased summer aridity in the Mediterranean Sea. We speculate that these changes triggered an increased MOW flow and were ultimately induced by a persistent 2.5 °C cooling of Indonesian Through-Flow waters. The temperature drop resulted from the northward drift of Australia that crossed a threshold value near 3.6–3.3 Ma and led to a large-scale cooling of the eastern subtropical Indian Ocean and in turn, to a reduction of African monsoon rains. Vice versa, we show that the distinct rise in Mediterranean salt export after ~3.4 Ma induced a unique long-term rise in the formation of Upper North Atlantic Deep Water, that followed with a phase lag of ~100 ky. In summary, we present evidence for an interhemispheric teleconnection of processes in the Indonesian Gateways, the Mediterranean and Labrador Seas, jointly affecting Pliocene climate.
    Type: Article , PeerReviewed
    Format: text
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  • 6
    Publication Date: 2022-01-31
    Description: Dramatic changes from a cold and dry last glacial to a warm and wet Holocene period intensified the Indian summer monsoon (ISM), resulting in vigorous hydrology and increased terrestrial erosion. Here we present seawater neodymium (Nd) data (expressed in εNd) from Andaman Sea sediments to assess past changes in the ISM and the related impact of Irrawaddy–Salween and Sittoung (ISS) river discharge into the Andaman Sea in the northeastern Indian Ocean. Four major isotopic changes were identified: (1) a gradual increase in εNd toward a more radiogenic signature during the Last Glacial Maximum (22–18 ka), suggesting a gradual decrease in the ISS discharge; (2) a relatively stable radiogenic seawater εNd between 17.2 and 8.8 ka, perhaps related to a stable reduced outflow; (3) a rapid transition to less radiogenic εNd signature after 8.8 ka, reflecting a very wet early–mid-Holocene with the highest discharge; and (4) a decrease in εNd signal stability in the mid–late Holocene. Taking into account the contribution of the ISS rivers to the Andaman Sea εNd signature that changes proportionally with the strengthening (less radiogenic εNd) or weakening (more radiogenic εNd) of the ISM, we propose a binary model mixing between the Salween and Irrawaddy rivers to explain the εNd variability in Andaman Sea sediments. We hypothesize that the Irrawaddy river mainly contributed detrital sediment to the northeastern Andaman Sea for the past 24 ka. Our εNd data shed new light on the regional changes in Indo-Asian monsoon systems when compared with the existing Indian and Chinese paleo-proxy records.
    Type: Article , PeerReviewed
    Format: text
    Format: text
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  • 7
    Publication Date: 2022-01-31
    Description: As coastal areas become increasingly vulnerable to climate change, the study of nearshore sediment textures along the littoral cell of the Medjerda delta in the Gulf of Tunis, southern Mediterranean coast can provide valuable information (i) on the origin (continental or marine) of the sediment, (ii) its transport direction, and (iii) constitutes an important tool in the assessment of coastal sensitivity. A total of 120 sediments samples underwent grain size analysis and statistic parameters have been calculated. These allowed the identification of five different Sedimentary Types (ST). Accordingly, using grain size indexes (i.e. Mz, SKI and Ku), Sediment Trend Analysis (STA) modeling tools were applied to define the seasonal sediment transport pathways throughout the nearshore of the Medjerda sedimentary cell. Results show that grain size distribution (GSD) and STA model pathways are determined by cross-shore geomorphology, location of the sediment-cell, seasonal incident wave and local terrestrial supply. The appearance in an atypical seabed location of the finer (Mo = 0.1 mm) and the coarser STs (Mo = 0.8 mm) can be indicative of human influence since the coarser particles are usually retained by dam structures. Moreover, the bimodality and the increased distribution of mud are also related to the seasonal incident wave winnowing of the historic deltaic plain submerged by the relative rise in sea level. The evolution of the sediment pattern towards a greater proportion of very fine grains indicates a deficit of sediment supply, particularly of the coarser grains, and demonstrates the coastal vulnerability of the Gulf of Tunis due to anthropic effects.
    Type: Article , PeerReviewed
    Format: text
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  • 8
    Publication Date: 2017-07-18
    Description: The origin and potential impact of changes in the flow strength and salt discharge of Mediterranean Outflow Waters (MOW) on Atlantic Meridional Overturning Circulation have been long-standing objectives of (paleo-) oceanographers. Late Pliocene changes in the distal advection of MOW were reconstructed on orbital timescales for northeast Atlantic DSDP/ODP Site 548 off Brittany and Site 982 on Rockall Plateau. The proxy records were compared to Western Mediterranean deep-water records of Alboran Sea Site 978 and now supplemented by a MOW record from Site U1389 directly west off Gibraltar. At sites 548 and 982, MOW temperatures and salinities form a prominent rise by 2°–4°C and ~3 psu from ~3.43–3.3 Ma, induced by a preceding and coeval rise in sea surface and deep-water salinity and increased summer aridity in the Western Mediterranean Sea. We suggest that these changes triggering an increased MOW flow were ultimately induced by a persistent 4°C cooling of Indonesian Throughflow waters (Karas et al., 2011). First postulated by Cane and Molnar (2001), the temperature drop resulted from the northward drift of Australia that crossed a threshold value near 3.6–3.3 Ma and led to a large-scale cooling of the eastern subtropical Indian Ocean and in turn, to a reduction of African monsoon rains. Vice versa, we show that the distinct rise in Mediterranean salt export after ~3.4 Ma induced an expected unique long-term rise in the formation of Upper North Atlantic Deep Water, that followed with a phase lag of ~100 ky, finally inducing glacial MIS M2.
    Type: Conference or Workshop Item , NonPeerReviewed
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