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  • 1
    Keywords: Climatic changes -- Environmental aspects -- Mediterranean Region. ; Carbon cycle (Biogeochemistry) -- Mediterranean Region. ; Electronic books.
    Description / Table of Contents: This is part of the three-volume final report detailing the results of the four-year Integrated Research Project CIRCE - Climate Change and Impact Research: Mediterranean Environment, funded by the EU 6th Framework Programme.
    Type of Medium: Online Resource
    Pages: 1 online resource (367 pages)
    Edition: 1st ed.
    ISBN: 9789400757813
    Series Statement: Advances in Global Change Research Series ; v.50
    DDC: 363.73874091822
    Language: English
    Note: Intro -- Regional Assessment of Climate Change in the Mediterranean -- CIRCE - Climate Change and Impact Research: The Mediterranean Environment -- Foreword -- CIRCE - Climate Change and Impact Research: The Mediterranean Environment -- Preface -- Acknowledgments -- Contents -- List of Figures -- List of Tables -- Part I: Air, Sea and Precipitation -- Chapter 1: Introduction -- References -- Chapter 2: Past and Current Climate Changes in the Mediterranean Region -- 2.1 Atmosphere -- 2.1.1 Mediterranean Climatological Data: Station Observations and Gridded Time Series -- 2.1.1.1 Observational Station Data -- 2.1.1.2 Gridded Datasets -- 2.1.2 Quality Control and Homogenization of Station Time Series -- 2.1.3 The Mediterranean Climate - Present Knowledge -- 2.1.4 Mediterranean Climate Change in the Instrumental Period -- 2.1.5 Links Between Large Scale Atmospheric Circulation and Mediterranean Climate -- 2.1.6 Analysis of Climate Variations from the Pre-instrumental Period to the Past Half Millennium Using Climate Proxies -- 2.2 Ocean -- 2.2.1 General Structure of the Mediterranean Circulation -- 2.2.2 Sea Level Changes -- 2.2.3 Changes in Surface Circulation -- 2.2.4 Changes in Water Mass Characteristics -- 2.2.5 Changes in Ocean-Atmosphere Fluxes -- 2.3 Extremes in the Mediterranean Region During the Last Decades -- 2.3.1 Introduction -- 2.3.2 Extreme Temperature -- 2.3.3 Extreme Precipitation -- 2.3.4 Droughts -- 2.3.5 Extreme Ocean Wave Conditions -- 2.3.6 Extreme Sea Levels -- 2.3.7 Cyclones and Wind Storms -- 2.3.8 Cut-Off-Lows -- 2.4 Conclusions -- References -- Chapter 3: Future Climate Projections -- 3.1 The CIRCE Models and Simulations -- 3.1.1 Introduction -- 3.1.2 The CIRCE Models -- 3.1.3 Mediterranean Sea Modeling Components of the CIRCE Models -- 3.1.4 Data and Model Simulations -- 3.2 Atmosphere. , 3.2.1 Simulations of the Mediterranean Climate and Future Projections -- 3.3 Ocean -- 3.3.1 Air-Sea Fluxes Evolution -- 3.3.2 Mediterranean Sea Surface Characteristics: SSS, SST -- 3.3.3 Mediterranean Sea Level Change -- 3.3.4 Evolution of the Gibraltar Strait Transport -- 3.3.5 Results in the Ocean-Alone INSTM Model -- 3.4 Extremes -- 3.4.1 Introduction -- 3.4.2 Definitions of Extreme Events -- 3.4.3 Projected Changes in Extreme Events -- 3.4.3.1 Extreme Temperatures -- 3.4.3.2 Extreme Precipitation -- 3.4.3.3 Cyclones and Wind-Storms -- 3.4.3.4 Extreme Ocean Conditions -- 3.4.3.5 Cut-Off Lows -- 3.5 An Assessment of the Uncertainties in the CIRCE Models Outputs -- 3.5.1 The Sources of Uncertainty in Coupled Climate Models -- 3.5.1.1 The Uncertainty Issue -- 3.5.1.2 The DEMETER, PRUDENCE, ENSEMBLES Experiments -- 3.5.2 An ENSEMBLES Approach for the Mediterranean Area -- 3.5.3 An Uncertainty Assessment of CIRCE Scenarios in the Mediterranean Area -- 3.6 Conclusions -- References -- Chapter 4: Mechanisms of Climate Variability, Air Quality and Impacts of Atmospheric Constituents in the Mediterranean Region -- 4.1 Introduction -- 4.2 Teleconnection and Local Circulation Patterns -- 4.3 Regional Patterns and Variability -- 4.4 Transport Paths of Air Pollution -- 4.4.1 Eastern Mediterranean Region -- 4.4.2 Western Mediterranean Region -- 4.4.3 Entire Mediterranean Region -- 4.5 Air Quality and Regional Climate -- 4.5.1 Black and Organic Carbon -- 4.5.2 Ozone -- 4.5.3 Aerosols -- 4.5.3.1 PM Levels -- 4.5.3.2 Dust Contribution to PM Levels and Spatio-Temporal Characteristics -- 4.5.3.3 PM Speciation -- 4.5.3.4 Aerosol Optical Properties -- 4.6 Climate Impacts -- 4.6.1 Direct Effects -- 4.6.2 Indirect Effects -- 4.7 Concluding Remarks -- References -- Chapter 5: Detection and Attribution -- 5.1 Introduction -- 5.2 Data -- 5.3 Methods. , 5.3.1 The "Regularized Optimal Fingerprint" -- 5.3.2 The "Temporal Optimal Detection" -- 5.3.3 The 'Consistency' Method -- 5.4 Temperature Change -- 5.4.1 Formal Detection -- 5.4.1.1 Annual Mean -- 5.4.1.2 Seasonal Means -- 5.4.2 Consistency Analysis -- 5.4.2.1 Is the Observed Warming Due to Natural (Internal) Variability Alone? -- 5.4.2.2 Is GS-Forcing a Plausible Explanation of the Observed Warming? -- 5.4.2.3 Is the Observed Change a Plausible Illustration of Future Expected Changes? -- 5.5 Precipitation Change -- 5.6 Conclusion -- References -- Chapter 6: Summary and Major Findings -- Part II: Water -- Chapter 7: Introduction -- 7.1 Overview of Water Resources in Mediterranean Area -- 7.2 Research Questions on Bordering Scales of Investigation -- 7.3 Bridge the Scale Gaps Between Climate Models and Hydrological System Models -- References -- Chapter 8: The Hydrological Cycle of the Mediterranean -- 8.1 Long-Term Changes in Mediterranean Sea Water Cycle: Observed and Projected -- 8.1.1 Introduction -- 8.1.2 Simulated and Projected Mediterranean Water Cycle Changes -- 8.1.3 Observed Twentieth Century Changes -- 8.2 Evaluation of Atmospheric Moisture Budget for the Recent Climate Based on Super High-Resolution MRI Model -- 8.2.1 Introduction -- 8.2.2 Data and Methodology -- 8.2.2.1 The Super-High Resolution Global Climate Model (GCM) -- 8.2.2.2 The River Model -- 8.2.2.3 Study Area and Season -- 8.2.3 Results and Discussions -- 8.2.3.1 Seasonal Moisture Fields Changes over the Large Domain -- 8.2.3.2 Changes of Monthly Running Means of E, P and P-E Over the Mediterranean -- 8.2.3.3 Comparing West and East Mediterranean -- 8.2.3.4 Change of River Discharge over Mediterranean Region -- 8.2.4 Summary -- 8.3 Multi-model Changes in Evapotranspiration, Precipitation and Renewable Water Resources -- 8.3.1 Introduction -- 8.3.2 Models and Methods. , 8.3.3 Spatial Changes in Precipitation and Evapotranspiration -- 8.3.4 Hydrological Controls on Water Resource -- 8.3.5 Summary -- 8.4 Final Conclusions -- References -- Chapter 9: Impacts of Climate Change on Freshwater Bodies: Quantitative Aspects -- 9.1 General Features of Mediterranean Hydrology -- 9.1.1 Introduction -- 9.1.2 Hydrological Signatures -- 9.2 Regional Projections of River Discharge in the Mediterranean Catchment -- 9.2.1 Introduction -- 9.2.2 River Discharge Evaluation: The IRIS Tool -- 9.2.3 Results -- 9.3 From Regional Climate Simulations to the Hydrological Information Needed for Basin Scale Impact Studies -- 9.3.1 Introduction -- 9.3.2 A Scheme for the Investigation of Climate Change Impacts on Eco-hydrological Processes and Freshwater Bodies -- 9.3.3 Postprocessing of Climate Model Output for Eco-hydrological Applications: Main Variables and Correction Problems -- 9.3.4 Example Application to the Water Resources Assessment in the Apulia Region -- 9.3.4.1 The Impact Model -- 9.3.4.2 Downscaling of Meteorological Forcing -- 9.3.4.3 Model Results and Regional Water Balance Projections for the Twenty-First Century -- 9.3.5 Climate Change and Groundwater: An Impact Study on a Carbonate Aquifer in Southern Italy -- 9.3.5.1 Study Area -- 9.3.5.2 Development of a Conceptual Model of Spring Discharge -- 9.3.5.3 Hydrological Model Calibration and Validation -- 9.3.5.4 Approach to Climate Change Impact Evaluation -- 9.3.5.5 Impact Assessment of Climate Change on Spring Regime -- 9.3.5.6 Discussion -- 9.4 The Role of Dams in Reducing the Impacts of Climate Change -- 9.4.1 Introduction -- 9.4.2 An Experience in a Small Greek Catchment -- 9.4.2.1 Assessment of Optimal Dam Dimensioning Under Climate Change -- 9.4.2.2 Results -- 9.4.3 Analysis of Supply and Demand Imbalances After Supply Side Adaptation -- 9.5 Conclusions -- References. , Chapter 10: Impacts of Climate Change on Water Quality -- 10.1 Impact on Lake Thermal Structure and Ecological Consequences -- 10.1.1 Introduction -- 10.1.1.1 Global Importance of Lakes as Valuable Fresh Water Resource -- 10.1.1.2 Lakes and Global Change: Passive and Active Role -- 10.1.2 The CIRCE Approach to the Climate Change Impact on Lakes -- 10.1.2.1 Study Sites -- 10.1.2.2 Diagnostic Tools -- 10.1.3 Impact of Global Warming on Two Italian South Alpine Lakes -- 10.1.3.1 Downscaling of Meteorological Forcing -- 10.1.3.2 Past, Present and Future Projections of Lake Thermal Structure -- 10.1.4 Ecological Implications of Lake Warming -- 10.2 Nutrient Loads: Simulations of River Catchments -- 10.2.1 Introduction -- 10.2.2 Data and Methodology -- 10.2.3 PCE and Scenarios Implementation -- 10.2.4 Results and Discussion -- 10.2.5 Final Remarks -- 10.3 Conclusions -- References -- Chapter 11: Summary and Major Findings -- Index.
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  • 2
    Keywords: Human beings -- Effect of climate on -- Mediterranean Region. ; Electronic books.
    Description / Table of Contents: This is volume 2 of a three-volume final report which describes, synthesizes and analyzes the results of the four-year Integrated Research Project CIRCE - Climate Change and Impact Research: Mediterranean Environment, funded by the EU 6th Framework Programme.
    Type of Medium: Online Resource
    Pages: 1 online resource (419 pages)
    Edition: 1st ed.
    ISBN: 9789400757721
    Series Statement: Advances in Global Change Research Series ; v.51
    DDC: 363.73874091822
    Language: English
    Note: Intro -- Regional Assessment of Climate Change in the Mediterranean -- CIRCE - Climate Change and Impact Research: The Mediterranean Environment -- Foreword -- CIRCE - Climate Change and Impact Research: The Mediterranean Environment -- Preface -- Acknowledgments -- Contents -- List of Figures -- List of Tables -- Part III: Agriculture, Forests and Ecosystem Services -- Chapter 1: Introduction -- References -- Chapter 2: Vulnerability of Ecosystem Services in the Mediterranean Region to Climate Changes in Combination with Other Pressures -- 2.1 Introduction -- 2.2 Characterization of the Mediterranean, Its Ecosystems and Ecosystem Services -- 2.3 Projected Climatic Changes and Impacts in the Mediterranean -- 2.4 Land Use Changes -- 2.5 Vulnerability of Ecosystem Services and the Sectors They Support -- 2.6 Results from CIRCE Research Line 7 - Vulnerability Assessment -- References -- Chapter 3: Impact of Climate Variability and Extremes on the Carbon Cycle of the Mediterranean Region -- 3.1 Recent and Ongoing Changes of Mediterranean Climate Change -- 3.2 Observed Impacts of Climate Variability and Extremes on Ecosystems -- 3.3 Projected Changes of Mediterranean -- 3.4 Expected Impacts of the Projected Changes -- 3.5 Concluding Remarks -- References -- Chapter 4: Climate Change Impacts on Typical Mediterranean Crops and Evaluation of Adaptation Strategies to Cope With -- 4.1 Introduction -- 4.2 Material and Methods -- 4.2.1 Study Area: Mediterranean Basin -- 4.2.2 Climate Data -- 4.2.3 Selected Crops -- 4.2.3.1 Durum Wheat -- 4.2.3.2 Grapevine -- 4.2.3.3 Olive Tree -- 4.2.4 Model Description -- 4.2.4.1 SIRIUS Quality v.1.1 -- 4.2.4.2 Grapevine Growth Model -- 4.2.4.3 Olive Tree Ecological Model -- 4.2.5 Impact Assessment -- 4.2.6 Adaptation Strategies -- 4.3 Results -- 4.3.1 Climatic Trend -- 4.3.2 Model Calibration and Validation. , 4.3.3 Climate Change Impact in STD -- 4.3.3.1 Durum Wheat -- 4.3.3.2 Grapevine -- 4.3.3.3 Olive Tree -- 4.3.4 Adaptation Strategies -- 4.3.4.1 Durum Wheat: Advanced Sowing -- 4.3.4.2 Durum Wheat: Shorter and Longer Cycle Varieties -- 4.3.4.3 Durum Wheat: Higher Fertilization -- 4.3.4.4 Grapevine: Advanced/Delayed Bud-Break -- 4.3.4.5 Grapevine: Shorter and Longer Cycle Varieties -- 4.4 Discussions -- 4.4.1 Durum Wheat -- 4.4.2 Grapevine -- 4.4.3 Olive Tree -- 4.5 Conclusions -- References -- Chapter 5: Climate Change Impacts on Forests and Forest Products in the Mediterranean Area -- 5.1 Introduction -- 5.2 Forest Resources in the Mediterranean Region -- 5.3 Forest Management in Mediterranean Forests: Features and Peculiarities -- 5.3.1 Changes in Total Forest and Other Wooded Land Area -- 5.4 Historical Trends for Main Forest Products in the Mediterranean Region -- 5.4.1 Non Wood Products and Externalities in Mediterranean Forests -- 5.5 Climate Change Impacts on Mediterranean Forests -- 5.5.1 Ecophysiology, Phenology and Productivity -- 5.5.2 Dieback, Degradation and Distribution of Forest Ecosystems -- 5.6 Effects of Future Climate on Forest Functionality and Productivity in the Mediterranean Region -- 5.7 Effects of Future Climate Scenario on the Potential and Effective Distribution of Forest Ecosystems and Tree Species -- 5.8 Responding to Climate Change: Adaptive Management for Mediterranean Forests -- 5.9 Concluding Remarks -- References -- Chapter 6: Effects of Climate and Extreme Events on Wildfire Regime and Their Ecological Impacts -- 6.1 Climate and Fire Regime During the Last Decades in the Mediterranean Area -- 6.2 Changes in Fire Regime According to Projected Climate Change in the Mediterranean -- 6.2.1 What Would Be New in the Forest Fire Regime? -- 6.3 Approaches and Methods to Identify Fire-Vulnerable Ecosystems. , 6.4 Confronting Fire Impacts in Light of Climate Change -- 6.4.1 Post-fire Restoration Techniques to Reduce Fire Risk -- 6.4.1.1 Mitigation Strategies -- Emergency Seeding -- Mulching -- 6.4.1.2 Fire Adaptation Measures -- Facing Increased Drought in Plantations -- Plant Species Selection -- Plant Quality: Nursery Cultivation -- Substrates or Growing Media -- Containers and Root Systems -- Drought Preconditioning -- 6.4.2 Landscape Dimension in Fire Prevention and Restoration -- 6.5 Concluding Remarks -- References -- Chapter 7: Climate Induced Effects on Livestock Population and Productivity in the Mediterranean Area -- 7.1 Introduction -- 7.2 Indirect Effects of Climate on Livestock -- 7.3 Impact of Climate Change on the Emergence of Vector-Borne Diseases - The Case of Bluetongue in the Mediterranean Basin -- 7.4 Direct Effects of Climate on Livestock -- 7.5 The Temperature Humidity Index -- 7.6 The THI Characterization of the Mediterranean Area -- 7.7 Relationships Between THI, Productivity and Health -- 7.8 Scenarios -- 7.9 Conclusions -- References -- Chapter 8: Summary and Major Findings -- References -- Part IV: People -- Chapter 9: Introduction -- Chapter 10: Integrated Socio-Economic Assessment (The Economic Point of View) -- 10.1 Introduction -- 10.2 Integrated Assessment (IA) and the Climate Change Problem -- 10.3 The Role and Representation of the Social-Economic Dimension in IA -- 10.4 Economic Assessments of Climate Change Impacts for the Mediterranean Region -- 10.4.1 Sea-Level Rise -- 10.4.2 Extreme Events -- 10.4.3 Energy Demand -- 10.4.4 Health -- 10.4.5 Agriculture -- 10.4.6 Ecosystems -- 10.4.7 Tourism -- 10.4.8 Overall Assessment of Economic Impacts of Climate Change in the Mediterranean -- 10.5 The Integrated Impact Assessment Performed by CIRCE Project -- 10.6 Conclusions -- References. , Chapter 11: Water and People: Assessing Policy Priorities for Climate Change Adaptation in the Mediterranean -- 11.1 How Much Does Water Management Need to Adapt in View of Climate Change? -- 11.2 Review of Impacts -- 11.2.1 The Challenges to Water Resources in Mediterranean Countries -- 11.3 A Survey of Previous Studies -- 11.4 How Able Are People to Adapt to These Changes? -- 11.4.1 Determinants of Adaptive Capacity -- 11.4.1.1 Social Capacity -- 11.4.1.2 Economic Capacity -- 11.4.1.3 Technological Eco-Efficiency -- 11.4.1.4 Natural Capital -- 11.4.1.5 Climate Capital -- 11.4.2 Computing an Adaptive Capacity Index -- 11.4.2.1 Selection of the Indicators -- 11.4.2.2 Normalization to a Common Baseline -- 11.4.2.3 Quantification of the Adaptive Capacity Index -- 11.4.2.4 Adaptive Capacity Index Distribution -- 11.4.2.5 Evaluation of Adaptive Capacity -- 11.5 Estimating How People May Modify Water Availability -- 11.5.1 Water Supply and Demand Scenarios -- 11.5.2 Defining Water Availability -- 11.5.2.1 Model Architecture -- 11.5.2.2 Example of Model Results -- 11.5.2.3 Trade-off Between Water Allocation and Supply Reliability -- 11.5.2.4 Management Policy Evaluation -- 11.5.3 Example of Application in the Ebro Basin -- 11.6 Establishing Policy Priorities -- 11.6.1 Policy Options and Thresholds -- 11.6.2 From Index Thresholds to Policy Recommendations -- 11.6.2.1 Low to Medium Water Scarcity -- 11.6.2.2 High Water Scarcity -- 11.7 Conclusions -- References -- Chapter 12: Adaptation Strategies for the Mediterranean -- 12.1 Introduction -- 12.2 Adaptation Implementation in the Mediterranean -- 12.2.1 Adaptation in Developing Countries: The Key Role of Development Cooperation -- 12.2.1.1 Fragmentation of Adaptation Implementation -- 12.2.1.2 Adaptation for the Poor -- 12.2.1.3 A Need for Enhanced Integration. , 12.2.2 Adaptation in Developed Countries: A Proliferation of Scattered, Top-Down Initiatives -- 12.3 The Relative Importance of Precise Climate Information -- 12.3.1 The Need for Information on Future Climate, and the Difficulties of Using It -- 12.3.1.1 A Plea for Early Action on Adaptation: Three Reasons -- 12.3.1.2 The Need for Climate Projections and the Problem of Uncertainty -- 12.3.1.3 A Theoretical Way Forward -- 12.3.2 The Minimal Use of Climate Science for Mediterranean Adaptation -- 12.3.3 A Rationale Behind the Underutilization of Precise Climate Information -- 12.3.3.1 Differential Needs for Precision in Climate Information -- 12.3.3.2 Non-climatic Drivers of Change and Related Uncertainties -- 12.3.3.3 A Need to Communicate the Best Available Science -- 12.4 Principles for the Elaboration of Adaptation Strategies -- 12.4.1 The Need for Integration -- 12.4.1.1 Climate Change and Other Drivers -- 12.4.1.2 A Two-Way Integrated Approach -- 12.4.1.3 A Wide Range of Possibilities -- 12.4.1.4 Contrasted Stakeholders' Interests -- 12.4.2 Choosing Adaptation Options -- 12.4.3 Contextualizing Best Practices and Adaptation Initiatives -- 12.4.4 Using What Already Exists -- 12.5 Conclusion -- 12.5.1 Adaptation for a Long Period of Time -- 12.5.2 An Emerging Framework of Action -- References -- Chapter 13: Health -- 13.1 Introduction -- 13.1.1 Heat, Heat-Waves and Air Pollution -- 13.1.2 Infectious Diseases -- 13.1.3 Capacity Building in Assessing Health Risks -- 13.1.4 Health Adaptation Needs -- 13.1.5 Research on Climate Change and Health -- 13.2 Research on Climate Change and Health -- 13.3 Health Impact of Extreme Temperature and Air Pollution in Ten Mediterranean Cities -- 13.3.1 Data -- 13.3.2 Methods -- 13.3.3 Results and Discussion -- 13.3.3.1 High Temperature and Mortality -- 13.3.3.2 Heat Wave Episodes and Mortality. , 13.3.3.3 Joint Effects of High Temperatures and Air Pollution.
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  • 3
    Online Resource
    Online Resource
    Dordrecht :Springer Netherlands,
    Keywords: Climatic changes -- Environmental aspects -- Mediterranean Region. ; Climatology. ; Electronic books.
    Description / Table of Contents: This is volume 3 of a three-volume final report which describes, synthesizes and analyzes the four-year Integrated Research Project CIRCE - Climate Change and Impact Research: Mediterranean Environment. Quantifies the physical impacts of climate change.
    Type of Medium: Online Resource
    Pages: 1 online resource (245 pages)
    Edition: 1st ed.
    ISBN: 9789400757691
    Series Statement: Advances in Global Change Research Series ; v.52
    DDC: 363.73874091822
    Language: English
    Note: Intro -- Regional Assessment of Climate Change in the Mediterranean -- CIRCE - Climate Change and Impact Research: The Mediterranean Environment -- Foreword -- CIRCE - Climate Change and Impact Research: The Mediterranean Environment -- Preface -- Acknowledgments -- Contents -- List of Box -- List of Figures -- List of Tables -- Part I: Case Studies -- Chapter 1: Introduction -- 1.1 Background to the Mediterranean Case Studies -- 1.2 Objectives -- 1.3 The Case-Studies Integrating Framework -- 1.4 Case Studies -- 1.4.1 Introduction -- 1.4.2 Urban -- 1.4.2.1 Athens (Greece) -- 1.4.2.2 Beirut (Lebanon) -- 1.4.2.3 Alexandria (Egypt) -- 1.4.3 Rural -- 1.4.3.1 Tuscany, Italy -- 1.4.3.2 Apulia, Italy -- 1.4.3.3 Tel Hadya, Syria -- 1.4.3.4 Judean Foothills, Israel -- 1.4.4 Coastal -- 1.4.4.1 Gulf of Valencia - Catalan Coast, Spain -- 1.4.4.2 Gulf of Oran, Algeria -- 1.4.4.3 Gulf of Gabès, Tunisia -- 1.4.4.4 West Nile Delta, Egypt -- References -- Chapter 2: Stakeholders -- 2.1 Introduction -- 2.2 Level of Stakeholder Involvement -- 2.3 Objectives of Stakeholder Involvement -- 2.4 Stakeholder Contribution to the Case Studies -- 2.4.1 Conceptual Framework and Indicators -- 2.4.2 Data and Knowledge -- 2.4.3 Identification of Thresholds -- 2.4.4 Risk Assessment and Management -- 2.4.5 Adaptation Strategies -- 2.4.6 Policy Recommendations -- 2.5 Barriers to Stakeholder Participation and a Good Practice Checklist -- References -- Chapter 3: Physical and Socio-economic Indicators -- 3.1 Introduction -- 3.2 Methodology -- 3.2.1 Selection Criteria -- 3.2.2 Reviewing and Refining Indicators -- 3.2.3 Assessment for Trend, Thresholds and Coping Range -- 3.2.4 Data and Methodological Challenges -- 3.2.5 Methods of Presentation -- 3.2.6 Integrated Vulnerability Assessment -- 3.3 Climate and Atmosphere Indicators -- 3.3.1 Core Climate Indicators. , 3.3.2 Additional Case-Study Specific Climate Indicators -- 3.4 Biogeophysical Indicators -- 3.4.1 Key Themes -- 3.4.1.1 Urban Case-Study Themes -- 3.4.1.2 Rural Case-Study Themes -- 3.4.1.3 Coastal Case-Study Themes -- 3.4.2 Key Challenges -- 3.5 Social Indicators -- 3.5.1 Key Themes -- 3.5.1.1 Urban Case-Study Themes -- 3.5.1.2 Rural Case-Study Themes -- 3.5.1.3 Coastal Case-Study Themes -- 3.5.2 Key Challenges -- References -- Chapter 4: Climate Impact Assessments -- 4.1 Introduction -- 4.2 Urban -- 4.2.1 Climate Related Impacts -- 4.2.2 Climate Hazards -- 4.2.3 Biogeophysical and Social Vulnerabilities -- 4.3 Rural -- 4.3.1 Climate Related Impacts -- 4.3.2 Climate Hazards -- 4.3.3 Biogeophysical and Social Vulnerabilities -- 4.4 Coastal -- 4.4.1 Climate Related Impacts -- 4.4.2 Climate Hazards -- 4.4.3 Biogeophysical and Social Vulnerabilities -- References -- Chapter 5: Integration of the Climate Impact Assessments with Future Projections -- 5.1 Introduction -- 5.2 Climate Projections -- 5.3 Biogeophysical and Socioeconomic Projections -- 5.3.1 Introduction -- 5.3.2 Key Messages on Mediterranean Changes in Biogeophysical and Socioeconomic Systems from the CIRCE Project -- 5.3.2.1 Water Resources -- 5.3.2.2 Mediterranean Agriculture, Forest and Ecosystem Services -- 5.3.2.3 Mediterranean Communities -- Economic Impacts -- Human Health and Well Being -- Energy -- Mediterranean Tourism -- 5.3.3 Specific Examples from the CIRCE Case Studies -- 5.3.3.1 Athens Urban Case Study -- Peri-Urban Fires -- Air-Pollution -- Human Health Risks -- Energy Demand -- 5.3.3.2 Gulf of Gabès Coastal Case Study -- 5.3.4 Summary and Discussion of Key Projected Changes -- 5.3.4.1 Future Changes in Biogeophysical Systems -- 5.3.4.2 Future Changes in Social Systems and Communities -- 5.3.4.3 Linking Vulnerabilities and Impacts -- 5.4 Assessment Uncertainties -- References. , Chapter 6: Synthesis and the Assessment of Adaptation Measures -- 6.1 Introduction -- 6.2 Linking Impacts and Vulnerability with Adaptation -- 6.2.1 Indicators, Thresholds, Coping Range and Adaptation -- 6.2.2 Vulnerability, Adaptation and Adaptive Capacity -- 6.3 Adaptation Measures at Local and Regional Scales -- 6.3.1 The CIRCE Stakeholder Perspective on Adaptation -- 6.3.1.1 Athens Case Study Workshop -- 6.3.1.2 Beirut Case-Study Dialogue -- 6.3.1.3 Tuscany Case-Study Stakeholder Workshop -- 6.3.1.4 Apulia Case-Study Stakeholder Workshop -- 6.3.1.5 The Judean Foothills Case-Study Stakeholder Workshop -- 6.3.1.6 The Tel Hadya Case-Study Seminars -- 6.3.1.7 Alexandria and West Nile Delta Stakeholder Workshop -- 6.3.1.8 Gulf of Gabès Case-Study Stakeholder Workshop -- 6.3.1.9 Gulf of Oran Meetings with Scientists, Civil Society and Decision Makers -- 6.3.1.10 Gulf of Valencia-Catalan Case-Study Stakeholder Workshop -- 6.3.2 Consolidating the Case-Study Information on Adaptation -- 6.3.2.1 Agriculture, Forestry and Ecosystems -- 6.3.2.2 Mediterranean Communities -- 6.3.2.3 Integrating Adaptation Options Across Scales and Sectors -- 6.4 Moving Beyond the Case Studies -- 6.4.1 Changes, Impacts and Events Outside the Case-Study Regions -- 6.4.1.1 Supply and Demand Issues (for Energy, Water, Food) -- 6.4.1.2 Global Effects on Regional Tourism -- 6.4.1.3 Migration -- 6.4.1.4 Governance Issues -- 6.4.2 Adaptation Policy -- 6.5 Conclusions: Lessons Learnt and Key Messages from the CIRCE Case Studies -- 6.6 Research Needs and Gaps -- References -- Chapter 7: Executive Summary -- Appendices -- Appendix 1: The CIRCE Case-Study Abbreviations -- Appendix 2: Key Case-Study Indicators -- Index.
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  • 4
    Online Resource
    Online Resource
    Dordrecht :Springer Netherlands,
    Keywords: Climatology--Data processing. ; Climatology--Computer simulation. ; Climatology--Mathematical models. ; Electronic books.
    Description / Table of Contents: A Guide to Empirical Orthogonal Functions for Climate Data Analysis introduces the reader to a practical application of the methods used in the field, including data sets from climate simulations and MATLAB codes for the algorithms.
    Type of Medium: Online Resource
    Pages: 1 online resource (150 pages)
    Edition: 1st ed.
    ISBN: 9789048137022
    DDC: 551.60285
    Language: English
    Note: A Guide to Empirical Orthogonal Functions for Climate Data Analysis -- 1 Introduction -- 2 Elements of Linear Algebra -- 2.1 Introduction -- 2.2 Elementary Vectors -- 2.3 Scalar Product -- 2.4 Linear Independence and Basis -- 2.5 Matrices -- 2.6 Rank, Singularity and Inverses -- 2.7 Decomposition of Matrices: Eigenvalues and Eigenvectors -- 2.8 The Singular Value Decomposition -- 2.9 Functions of Matrices -- 3 Basic Statistical Concepts -- 3.1 Introduction -- 3.2 Climate Datasets -- 3.3 The Sample and the Population -- 3.4 Estimating the Mean State and Variance -- 3.5 Associations Between Time Series -- 3.6 Hypothesis Testing -- 3.7 Missing Data -- 4 Empirical Orthogonal Functions -- 4.1 Introduction -- 4.2 Empirical Orthogonal Functions -- 4.3 Computing the EOFs -- 4.3.1 EOF and Variance Explained -- 4.4 Sensitivity of EOF Calculation -- 4.4.1 Normalizing the Data -- 4.4.2 Domain of Definition of the EOF -- 4.4.3 Statistical Reliability -- 4.5 Reconstruction of the Data -- 4.5.1 The Singular Value Distribution and Noise -- 4.5.2 Stopping Criterion -- 4.6 A Note on the Interpretation of EOF -- 5 Generalizations: Rotated, Complex, Extended and Combined EOF -- 5.1 Introduction -- 5.2 Rotated EOF -- 5.3 Complex EOF -- 5.4 Extended EOF -- 5.5 Many Field Problems: Combined EOF -- 6 Cross-Covariance and the Singular Value Decomposition -- 6.1 The Cross-Covariance -- 6.2 Cross-Covariance Analysis Using the SVD -- 7 The Canonical Correlation Analysis -- 7.1 The Classical Canonical Correlation Analysis -- 7.2 The Modes -- 7.3 The Barnett-Preisendorfer Canonical Correlation Analysis -- 8 Multiple Linear Regression Methods -- 8.1 Introduction -- 8.1.1 A Slight Digression -- 8.2 A Practical PRO Method -- 8.2.1 A Different Scaling -- 8.2.2 The Relation Between the PRO Methodand Other Methods -- 8.3 The Forced Manifold -- 8.3.1 Significance Analysis. , 8.4 The Coupled Manifold -- References -- Index.
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  • 5
    Publication Date: 2019-09-23
    Description: Highlights: • We focus on ACC and Southern Ocean MOC during 1958–2007 in 17 CORE-II forced models. • Most CORE-II simulations are close to eddy saturation. • Most CORE-II simulations are far from showing signs of eddy compensation. • Constant in time or space k results in poor representation of mesoscale eddy effects. • MOC has larger sensitivity than ACC transport even in eddy saturated state. Abstract: In the framework of the second phase of the Coordinated Ocean-ice Reference Experiments (CORE-II), we present an analysis of the representation of the Antarctic Circumpolar Current (ACC) and Southern Ocean meridional overturning circulation (MOC) in a suite of seventeen global ocean–sea ice models. We focus on the mean, variability and trends of both the ACC and MOC over the 1958–2007 period, and discuss their relationship with the surface forcing. We aim to quantify the degree of eddy saturation and eddy compensation in the models participating in CORE-II, and compare our results with available observations, previous fine-resolution numerical studies and theoretical constraints. Most models show weak ACC transport sensitivity to changes in forcing during the past five decades, and they can be considered to be in an eddy saturated regime. Larger contrasts arise when considering MOC trends, with a majority of models exhibiting significant strengthening of the MOC during the late 20th and early 21st century. Only a few models show a relatively small sensitivity to forcing changes, responding with an intensified eddy-induced circulation that provides some degree of eddy compensation, while still showing considerable decadal trends. Both ACC and MOC interannual variabilities are largely controlled by the Southern Annular Mode (SAM). Based on these results, models are clustered into two groups. Models with constant or two-dimensional (horizontal) specification of the eddy-induced advection coefficient κ show larger ocean interior decadal trends, larger ACC transport decadal trends and no eddy compensation in the MOC. Eddy-permitting models or models with a three-dimensional time varying κ show smaller changes in isopycnal slopes and associated ACC trends, and partial eddy compensation. As previously argued, a constant in time or space κ is responsible for a poor representation of mesoscale eddy effects and cannot properly simulate the sensitivity of the ACC and MOC to changing surface forcing. Evidence is given for a larger sensitivity of the MOC as compared to the ACC transport, even when approaching eddy saturation. Future process studies designed for disentangling the role of momentum and buoyancy forcing in driving the ACC and MOC are proposed.
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  • 6
    Publication Date: 2019-09-23
    Description: Highlights: • Phase II of the Coordinated Ocean-ice Reference Experiments (CORE-II) is introduced. • Solutions from CORE-II simulations from eighteen participating models are presented. • Mean states in the North Atlantic with a focus on AMOC are examined. • The North Atlantic solutions differ substantially among the models. • Many factors, including parameterization choices, contribute to these differences. Simulation characteristics from eighteen global ocean–sea-ice coupled models are presented with a focus on the mean Atlantic meridional overturning circulation (AMOC) and other related fields in the North Atlantic. These experiments use inter-annually varying atmospheric forcing data sets for the 60-year period from 1948 to 2007 and are performed as contributions to the second phase of the Coordinated Ocean-ice Reference Experiments (CORE-II). The protocol for conducting such CORE-II experiments is summarized. Despite using the same atmospheric forcing, the solutions show significant differences. As most models also differ from available observations, biases in the Labrador Sea region in upper-ocean potential temperature and salinity distributions, mixed layer depths, and sea-ice cover are identified as contributors to differences in AMOC. These differences in the solutions do not suggest an obvious grouping of the models based on their ocean model lineage, their vertical coordinate representations, or surface salinity restoring strengths. Thus, the solution differences among the models are attributed primarily to use of different subgrid scale parameterizations and parameter choices as well as to differences in vertical and horizontal grid resolutions in the ocean models. Use of a wide variety of sea-ice models with diverse snow and sea-ice albedo treatments also contributes to these differences. Based on the diagnostics considered, the majority of the models appear suitable for use in studies involving the North Atlantic, but some models require dedicated development effort.
    Type: Article , PeerReviewed
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  • 7
    Publication Date: 2019-09-23
    Description: We characterise the representation of the Southern Ocean water mass structure and sea ice within a suite of 15 global ocean-ice models run with the Coordinated Ocean-ice Reference Experiment Phase II (CORE-II) protocol. The main focus is the representation of the present (1988-2007) mode and intermediate waters, thus framing an analysis of winter and summer mixed layer depths; temperature, salinity, and potential vorticity structure; and temporal variability of sea ice distributions. We also consider the interannual variability over the same 20 year period. Comparisons are made between models as well as to observation-based analyses where available. The CORE-II models exhibit several biases relative to Southern Ocean observations, including an underestimation of the model mean mixed layer depths of mode and intermediate water masses in March (associated with greater ocean surface heat gain), and an overestimation in September (associated with greater high latitude ocean heat loss and a more northward winter sea-ice extent). In addition, the models have cold and fresh/warm and salty water column biases centred near 50 degrees S. Over the 1933-2007 period, the CORE-II models consistently simulate spatially variable trends in sea-ice concentration, surface freshwater fluxes, mixed layer depths, and 200-700 in ocean heat content. In particular, sea-ice coverage around most of the Antarctic continental shelf is reduced, leading to a cooling and freshening of the near surface waters. The shoaling of the mixed layer is associated with increased surface buoyancy gain, except in the Pacific where sea ice is also influential. The models are in disagreement, despite the common CORE-II atmospheric state, in their spatial pattern of the 20-year trends in the mixed layer depth and sea-ice
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  • 8
    Publication Date: 2019-02-25
    Description: Highlights: • Inter-annual to decadal variability in AMOC from CORE-II simulations is presented. • AMOC variability shows three stages, with maximum transports in mid- to late-1990s. • North Atlantic temporal variability features are in good agreement among simulations. • Such agreements suggest variability is dictated by the atmospheric data sets. • Simulations differ in spatial structures of variability due to ocean dynamics. Simulated inter-annual to decadal variability and trends in the North Atlantic for the 1958–2007 period from twenty global ocean – sea-ice coupled models are presented. These simulations are performed as contributions to the second phase of the Coordinated Ocean-ice Reference Experiments (CORE-II). The study is Part II of our companion paper (Danabasoglu et al., 2014) which documented the mean states in the North Atlantic from the same models. A major focus of the present study is the representation of Atlantic meridional overturning circulation (AMOC) variability in the participating models. Relationships between AMOC variability and those of some other related variables, such as subpolar mixed layer depths, the North Atlantic Oscillation (NAO), and the Labrador Sea upper-ocean hydrographic properties, are also investigated. In general, AMOC variability shows three distinct stages. During the first stage that lasts until the mid- to late-1970s, AMOC is relatively steady, remaining lower than its long-term (1958–2007) mean. Thereafter, AMOC intensifies with maximum transports achieved in the mid- to late-1990s. This enhancement is then followed by a weakening trend until the end of our integration period. This sequence of low frequency AMOC variability is consistent with previous studies. Regarding strengthening of AMOC between about the mid-1970s and the mid-1990s, our results support a previously identified variability mechanism where AMOC intensification is connected to increased deep water formation in the subpolar North Atlantic, driven by NAO-related surface fluxes. The simulations tend to show general agreement in their temporal representations of, for example, AMOC, sea surface temperature (SST), and subpolar mixed layer depth variabilities. In particular, the observed variability of the North Atlantic SSTs is captured well by all models. These findings indicate that simulated variability and trends are primarily dictated by the atmospheric datasets which include the influence of ocean dynamics from nature superimposed onto anthropogenic effects. Despite these general agreements, there are many differences among the model solutions, particularly in the spatial structures of variability patterns. For example, the location of the maximum AMOC variability differs among the models between Northern and Southern Hemispheres.
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  • 9
    Publication Date: 2019-09-23
    Description: Highlights: • Mean circulation patterns are assessed and Kuroshio transport is underestimated. • Water mass distribution is compared and analyzed within COREII models. • Main biases of deep MLDs result from the inaccurate Kuroshio separation. • Reasonable modeled tropical dynamics but a discrepancy from the surface wind. Abstract: We evaluate the mean circulation patterns, water mass distributions, and tropical dynamics of the North and Equatorial Pacific Ocean based on a suite of global ocean-sea ice simulations driven by the CORE-II atmospheric forcing from 1963-2007. The first three moments (mean, standard deviation and skewness) of sea surface height and surface temperature variability are assessed against observations. Large discrepancies are found in the variance and skewness of sea surface height and in the skewness of sea surface temperature. Comparing with the observation, most models underestimate the Kuroshio transport in the Asian Marginal seas due to the missing influence of the unresolved western boundary current and meso-scale eddies. In terms of the Mixed Layer Depths (MLDs) in the North Pacific, the two observed maxima associated with Subtropical Mode Water and Central Mode Water formation coalesce into a large pool of deep MLDs in all participating models, but another local maximum associated with the formation of Eastern Subtropical Mode Water can be found in all models with different magnitudes. The main model bias of deep MLDs results from excessive Subtropical Mode Water formation due to inaccurate representation of the Kuroshio separation and of the associated excessively warm and salty Kuroshio water. Further water mass analysis shows that the North Pacific Intermediate Water can penetrate southward in most models, but its distribution greatly varies among models depending not only on grid resolution and vertical coordinate but also on the model dynamics. All simulations show overall similar large scale tropical current system, but with differences in the structures of the Equatorial Undercurrent. We also confirm the key role of the meridional gradient of the wind stress curl in driving the equatorial transport, leading to a generally weak North Equatorial Counter Current in all models due to inaccurate CORE-II equatorial wind fields. Most models show a larger interior transport of Pacific subtropical cells than the observation due to the overestimated transport in the Northern Hemisphere likely resulting from the deep pycnocline
    Type: Article , PeerReviewed
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  • 10
    Publication Date: 2019-09-23
    Description: Under future scenarios of business-as-usual emissions, the ocean storage of anthropogenic carbon is anticipated to decrease because of ocean chemistry constraints and positive feedbacks in the carbon-climate dynamics, whereas it is still unknown how the oceanic carbon cycle will respond to more substantial mitigation scenarios. To evaluate the natural system response to prescribed atmospheric "target" concentrations and assess the response of the ocean carbon pool to these values, 2 centennial projection simulations have been performed with an Earth System Model that includes a fully coupled carbon cycle, forced in one case with a mitigation scenario and the other with the SRES A1B scenario. End of century ocean uptake with the mitigation scenario is projected to return to the same magnitude of carbon fluxes as simulated in 1960 in the Pacific Ocean and to lower values in the Atlantic. With A1B, the major ocean basins are instead projected to decrease the capacity for carbon uptake globally as found with simpler carbon cycle models, while at the regional level the response is contrasting. The model indicates that the equatorial Pacific may increase the carbon uptake rates in both scenarios, owing to enhancement of the biological carbon pump evidenced by an increase in Net Community Production (NCP) following changes in the subsurface equatorial circulation and enhanced iron availability from extratropical regions. NCP is a proxy of the bulk organic carbon made available to the higher trophic levels and potentially exportable from the surface layers. The model results indicate that, besides the localized increase in the equatorial Pacific, the NCP of lower trophic levels in the northern Pacific and Atlantic oceans is projected to be halved with respect to the current climate under a substantial mitigation scenario at the end of the twenty-first century. It is thus suggested that changes due to cumulative carbon emissions up to present and the projected concentration pathways of aerosol in the next decades control the evolution of surface ocean biogeochemistry in the second half of this century more than the specific pathways of atmospheric CO2 concentrations. © 2011 Springer-Verlag.
    Type: Article , PeerReviewed
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