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  • Copernicus Publications  (1)
  • Dordrecht :Springer Netherlands,  (1)
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  • 1
    Online Resource
    Online Resource
    Dordrecht :Springer Netherlands,
    Keywords: Climatic changes. ; Climatology. ; Electronic books.
    Description / Table of Contents: This book presents both theoretical concepts and methodologies for detecting extremes, trend analysis, accounting for nonstationarities and uncertainties associated with extreme value analysis in a changing climate. Includes several climate case studies.
    Type of Medium: Online Resource
    Pages: 1 online resource (429 pages)
    Edition: 1st ed.
    ISBN: 9789400744790
    Series Statement: Water Science and Technology Library ; v.65
    DDC: 551.6
    Language: English
    Note: Intro -- Extremes in a Changing Climate -- Foreword -- Preface -- Contents -- Contributors -- Chapter 1: Statistical Indices for the Diagnosing and Detecting Changes in Extremes -- 1.1 Introduction -- 1.2 Indices of Extremes for Weather and Climate Variables -- 1.3 Detection and Attribution of Changes in Climate Extremes -- 1.3.1 Changes in Extreme Temperatures -- 1.3.2 Anthropogenic Influence on Annual Maximum 1- or 5-Day Precipitation -- 1.3.3 Event Attribution -- 1.4 Summary -- References -- Chapter 2: Statistical Methods for Nonstationary Extremes -- 2.1 Introduction -- 2.2 Statistical Methods -- 2.2.1 Block Maxima -- 2.2.2 Excesses Over High Threshold -- 2.2.3 Point Process Approach -- 2.2.4 Parameter Estimation -- 2.2.4.1 Maximum Likelihood -- 2.2.4.2 Model Selection -- 2.2.4.3 Diagnostics -- 2.3 Examples -- 2.3.1 Trend in Block Maxima -- 2.3.1.1 Annual Peak Flow at Mercer Creek, WA -- 2.3.1.2 Winter Maximum Daily Precipitation at Manjimup, Western Australia -- 2.3.2 Trend in Point Process -- 2.3.2.1 Poisson-GP Model for Manjimup Winter Daily Precipitation -- 2.3.2.2 Point Process Applied to Manjimup Winter Daily Precipitation -- 2.4 Discussion -- References -- Chapter 3: Bayesian Methods for Non-stationary Extreme Value Analysis -- 3.1 Introduction -- 3.2 What Is Bayesian Inference? -- 3.2.1 Basics of Bayesian Inference -- 3.2.1.1 Notation -- 3.2.1.2 Likelihood -- 3.2.1.3 Prior Distribution -- 3.2.1.4 Posterior Distribution -- 3.2.2 MCMC Samplers -- 3.2.2.1 General Principles -- 3.2.2.2 A General-Purpose Sampler: The Metropolis-Hastings Algorithm -- 3.2.2.3 Monitoring Convergence -- 3.2.2.4 Building Efficient Samplers -- 3.2.3 Using the Posterior Distribution for Inference and Prediction -- 3.2.3.1 Posterior-Based Inference -- 3.2.3.2 The Predictive Distribution -- 3.2.3.3 Model Comparison and Bayesian Model Averaging. , 3.3 Local Inference of Non-stationary Models -- 3.3.1 Introducing Non-stationarity Using Covariate Modeling -- 3.3.2 Inference -- 3.3.3 Example: Extreme Rainfalls -- 3.3.3.1 Trend Model -- 3.3.3.2 Step-Change Model -- 3.3.3.3 Model Comparison and Model Averaging -- 3.3.3.4 Identifiability Issues -- 3.4 Regional Inference of Non-stationary Models -- 3.4.1 Motivation: Looking at Local Results at a Regional Scale -- 3.4.2 Notation -- 3.4.3 The Notion of Regional Parameters -- 3.4.4 Inference -- 3.4.4.1 The Spatial Independence Case -- 3.4.4.2 Accounting for Spatial Dependence -- 3.4.4.3 Inference with Spatially Dependent Data -- 3.4.5 Example: Extreme Rainfalls -- 3.5 Hierarchical Modeling -- 3.5.1 Principles of Hierarchical Modeling -- 3.5.1.1 Motivation -- 3.5.1.2 A Simple Example -- 3.5.2 Regional Hierarchical Modeling -- 3.5.2.1 Regional, Local and Stochastic Parameters -- 3.5.2.2 Inference -- 3.5.3 Case Study -- 3.5.3.1 Model Specification -- 3.5.3.2 Estimation -- 3.5.3.3 Prediction -- 3.5.4 Towards a Complete Spatiotemporal Modeling of Extreme Values -- 3.6 Conclusion -- 3.6.1 Benefits of the Bayesian Inference for Describing, Understanding and Predicting Extremes -- 3.6.2 Challenges and Future Research -- A.1 Appendix -- A.1.1 The Chib Method for Computing Marginal Likelihoods -- References -- Chapter 4: Return Periods and Return Levels Under Climate Change -- 4.1 Introduction -- 4.1.1 Return Periods and Return Levels Under Stationarity -- 4.1.2 Statistical Models for the Distribution's Tail -- 4.1.3 Interpretations of Return Periods Under Stationarity -- 4.1.4 Outline -- 4.2 Communicating Risk Under Non-stationarity -- 4.2.1 Communicating Changing Risk -- 4.2.2 Return Periods and Return Levels Under Non-stationarity -- 4.2.2.1 Return Period as Expected Waiting Time -- 4.2.2.2 Return Period as Expected Number of Events. , 4.3 Illustrative Example: Red River at Halstad -- 4.3.1 The Stationary Model -- 4.3.2 A Nonstationary Model -- 4.3.2.1 Communicating Changing Risk -- 4.3.2.2 Return Period as Expected Waiting Time -- 4.3.2.3 Return Period as Expected Number of Events -- 4.3.3 Other Possible Non-stationary Models -- 4.4 Discussion -- A Appendix -- A.1 Expansion of (4.2) -- A.2 Implicit Delta Method -- References -- Chapter 5: Multivariate Extreme Value Methods -- 5.1 Introduction -- 5.2 Copulas -- 5.2.1 Basic Features -- 5.2.2 Multivariate Association Measures -- 5.2.3 Asymptotic Dependence -- 5.2.4 Simulation -- 5.3 Multivariate Extreme Value Models -- 5.3.1 Extreme Value Copulas -- 5.3.2 Special Construction of MEV Distributions -- 5.4 Multivariate Return Periods and Design -- 5.4.1 Multivariate Return Periods -- 5.4.2 Multivariate Quantiles -- 5.4.3 Multivariate Design Events -- 5.4.3.1 Component-Wise Excess Design Realization -- 5.4.3.2 Most-Likely Design Realization -- 5.4.3.3 Further Notes About Design -- 5.5 Discussion and Perspectives -- References -- Chapter 6: Methods of Tail Dependence Estimation -- 6.1 Introduction -- 6.2 Tail Dependence: Basic Definitions -- 6.3 Copulas and Tail Dependence -- 6.3.1 Gaussian Copula -- 6.3.2 t-Copula -- 6.3.3 Gumbel-Hougaard Copula -- 6.4 Nonparametric Tail Dependence Methods -- 6.5 Extreme Value Threshold -- 6.6 Case Studies -- 6.7 Summary and Conclusions -- References -- Chapter 7: Stochastic Models of Climate Extremes: Theory and Observations -- 7.1 Introduction -- 7.1.1 Extreme Events: Definition, Relevance, and Sampling -- 7.1.2 Common Methods to Study Extreme Events -- 7.1.3 Novel Stochastic Approaches to Study Extreme Events -- 7.2 Theory -- 7.2.1 Stochastic Dynamics in a Nutshell -- 7.2.1.1 Interpretation of SDEs -- 7.2.1.2 SDE Versus Fokker-Planck Equation -- 7.2.2 Stochastic Dynamics of Climate Variability. , 7.2.3 Stochastic Models of Gaussian Variability: Hasselmann's Paradigm and the Red Climate Spectrum -- 7.2.4 Stochastic Models of Non-Gaussian Variability: A Null Hypothesis for the Statistics of Extreme Events -- 7.2.4.1 Skewness-Kurtosis Link -- 7.2.4.2 PDF and Power-Law Tails -- 7.2.4.3 Synthesis -- 7.3 Observations and Applications -- 7.3.1 Oceanic Examples -- 7.3.1.1 Sea Surface Temperature -- 7.3.1.2 Sea Surface Height -- 7.3.2 Atmospheric Examples -- 7.3.3 Other Applications -- 7.4 Conclusions -- 7.4.1 Where Do We Stand? -- 7.4.2 Outstanding Issues and Challenges -- References -- Chapter 8: Methods of Projecting Future Changes in Extremes -- 8.1 Extreme Indices -- 8.2 Extreme Value Theory Methods -- 8.3 Multi-Variate Climate and Weather Extremes -- 8.4 Summary -- References -- Chapter 9: Climate Variability and Weather Extremes: Model-Simulated and Historical Data -- 9.1 Introduction -- 9.2 Observed and Simulated Climate Variability and Weather Extremes -- 9.2.1 Boreal Winter (JFM) -- 9.2.1.1 Climatology and Variability -- 9.2.1.2 Regional Impacts of Climate Variability -- 9.2.1.3 Long-Term (Decadal Scale) Changes -- 9.2.2 Austral Winter (JAS) -- 9.2.2.1 Climatology and Variability -- 9.2.2.2 Regional Impacts of Climate Variability -- 9.2.2.3 Long-Term (Decadal Scale) Changes -- 9.3 Impact of CO2 Doubling and Uniform SST Increase -- 9.3.1 Boreal Winter (JFM) -- 9.3.1.1 Impact on the Mean Climate and Weather Variability -- 9.3.1.2 Impact on Climate Variability -- 9.3.2 Austral Winter (JAS) -- 9.3.2.1 Impact on Mean Climate and Weather Variability -- 9.3.2.2 Impact on Climate Variability -- 9.4 Summary and Discussion -- A.1 Appendices -- A.1.1 Appendix A -- A.1.1.1 The GEOS-5 Model and Experiments -- A.1.1.2 MERRA and Other Observations -- A.1.2 Appendix B -- A.1.2.1 Some Examples of Fits to the GEV Distribution -- References. , Chapter 10: Uncertainties in Observed Changes in Climate Extremes -- 10.1 Overview of Fundamental Issues Underlying Uncertainty -- 10.2 Specific Sources of Uncertainty -- 10.2.1 Chaotic Climate System -- 10.2.2 Measurements: Climate Station Inhomogeneities -- 10.2.3 Measurements: Sampling of Physical System -- 10.3 Methods for Quantification of Uncertainty -- 10.3.1 Monte Carlo Experiments -- 10.3.2 Standard Statistical Tools -- 10.3.3 Climate Model Ensemble Experiments -- 10.4 Applications -- 10.4.1 Extreme Precipitation Trends in the U.S. -- 10.4.2 Heat and Cold Wave Trends -- 10.4.3 The Hurricane Problem -- 10.4.4 The Tornado Problem -- 10.5 Concluding Remarks -- References -- Chapter 11: Uncertainties in Projections of Future Changes in Extremes -- 11.1 Introduction -- 11.2 Step 1. Identify Precipitation Metrics of Interest -- 11.3 Step 2. Select a Representative Climate Projections Ensemble -- 11.4 Step 3. Assess Projected Changes in Typical Precipitation Conditions -- 11.5 Step 4. Assess Projected Changes in Extreme Precipitation Conditions -- 11.6 Preliminary for Step 5: Low-Frequency Climate Variability and Its effect on Interpreting Projected Changes in Local Extremes -- 11.7 Step 5. Relate Variance in Projected Changes to Global Uncertainties -- 11.8 Step 6: Assess Changes Given Global/Local Interactions -- 11.9 Summary -- References -- Chapter 12: Global Data Sets for Analysis of Climate Extremes -- 12.1 Introduction -- 12.2 Data Issues Impacting the Analysis of Extremes -- 12.3 Climate Observing Networks -- 12.4 Data Sets for Examining Climate Extremes -- 12.5 Concluding Remarks -- References -- Chapter 13: Nonstationarity in Extremes and Engineering Design -- 13.1 Introduction -- 13.1.1 Setting the Scene -- 13.1.2 Recent Extremes, Their Impact and Questions They Raised -- 13.1.2.1 Boscastle Flood, Cornwall, UK - 16 August 2004. , 13.1.2.2 Hurricane Katrina, New Orleans, USA - August 2005.
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  • 2
    Publication Date: 2024-04-22
    Description: As the adverse impacts of hydrological extremes increase in many regions of the world, a better understanding of the drivers of changes in risk and impacts is essential for effective flood and drought risk management and climate adaptation. However, there is currently a lack of comprehensive, empirical data about the processes, interactions, and feedbacks in complex human-water systems leading to flood and drought impacts. Here we present a benchmark dataset containing socio-hydrological data of paired events, i.e. two floods or two droughts that occurred in the same area. The 45 paired events occurred in 42 different study areas and cover a wide range of socio-economic and hydro-climatic conditions. The dataset is unique in covering both floods and droughts, in the number of cases assessed and in the quantity of socio-hydrological data. The benchmark dataset comprises (1) detailed review-style reports about the events and key processes between the two events of a pair; (2) the key data table containing variables that assess the indicators which characterize management shortcomings, hazard, exposure, vulnerability, and impacts of all events; and (3) a table of the indicators of change that indicate the differences between the first and second event of a pair. The advantages of the dataset are that it enables comparative analyses across all the paired events based on the indicators of change and allows for detailed context- and location-specific assessments based on the extensive data and reports of the individual study areas. The dataset can be used by the scientific community for exploratory data analyses, e.g. focused on causal links between risk management; changes in hazard, exposure and vulnerability; and flood or drought impacts. The data can also be used for the development, calibration, and validation of socio-hydrological models. The dataset is available to the public through the GFZ Data Services (Kreibich et al., 2023, 10.5880/GFZ.4.4.2023.001).
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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