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  • 1
    Online Resource
    Online Resource
    Newark :American Geophysical Union,
    Keywords: Hydrological forecasting. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (269 pages)
    ISBN: 9781119159155
    Series Statement: Geophysical Monograph Series
    DDC: 363.348
    Language: English
    Note: Cover -- Title Page -- Copyright Page -- Contents -- List of Contributors -- Preface -- Chapter 1 Interdisciplinary Perspectives on Remote Sensing for Monitoring and Predicting Water-Related Hazards -- 1.1. BACKGROUND -- 1.2. ADVANCES IN REMOTE SENSING TECHNOLOGIES -- 1.3. OBJECTIVES AND ORGANIZATION OF THE BOOK -- REFERENCES -- Part I Remote Sensing of Precipitation and Storms -- Chapter 2 Progress in Satellite Precipitation Products over the Past Two Decades: Evaluation and Application in Flash Flood Warning -- 2.1. INTRODUCTION -- 2.2. STUDY AREA AND DATASETS -- 2.3. METHODOLOGY -- 2.4. RESULIS -- 2.5. SUMMARY AND CONCLUSION -- APPENDIX: ABBREVIATIONs -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 3 Observations of Tornadoes and Their Parent Supercells Using Ground-Based, Mobile Doppler Radars -- 3.1. INTRODUCTION: THE MOTIVATION FOR GROUND-BASED, MOBILE DOPPLER RADARS -- 3.2. A HISTORY OF GROUND-BASED, MOBILE DOPPLER RADARS AND ANALYSIS TECHNIQUES -- 3.3. OBSERVATIONS OF THE STRUCTURE OF TORNADOES AND THEIR PARENT STORMS -- 3.4. OBSERVATIONS OF TORNADOGENESIS AND TORNADO EVOLUTION -- 3.5. FUTURE RADAR DEVELOPMENT AND OTHER RADAR-RELATED ACTIVITIES -- 3.6. SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- Part II Remote Sensing of Floods and Associated Hazards -- Chapter 4 Remote Sensing Mapping and Modeling for Flood Hazards in Data-Scarce Areas: A Case Study in Nyaungdon Area, Myanmar -- 4.1. INTRODUCTION -- 4.2. METHODOLOGY -- 4.3. STUDY AREA AND DATA -- 4.4. RESULTS AND DISCUSSION -- 4.5. CONCLUSION -- REFERENCES -- Chapter 5 Multisensor Remote Sensing and the Multidimensional Modeling of Extreme Flood Events: A Case Study of Hurricane Harvey-Triggered Floods in Houston, Texas, USA -- 5.1. INTRODUCTION -- 5.2. THE DETECTABILITY OF REMOTE SENSING TECHNOLOGY OVER THE EXTREME EVENT. , 5.3. INTEGRATION OF REMOTE SENSING AND CREST FOR HURRICANE HARVEY FLOOD SIMULATION -- 5.4. CONCLUSION AND FUTURE OUTLOOK -- REFERENCES -- Chapter 6 A Multisource, Data-Driven, Web-GIS-Based Hydrological Modeling Framework for Flood Forecasting and Prevention -- 6.1. INTRODUCTION -- 6.2. MATERIALS AND METHODS -- 6.3. EVALUATIONS AND RESULTS -- 6.4. DISCUSSION -- 6.5. CONCLUSION -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 7 An Ensemble-Based, Remote-Sensing-Driven, Flood-Landslide Early Warning System -- 7.1. INTRODUCTION -- 7.2. METHODOLOGY -- 7.3. STUDY AREA -- 7.4. RESULTS -- 7.5. CONCLUSIONS AND SUMMARY -- REFERENCES -- Chapter 8 Detection of Hazard-Damaged Bridges Using Multitemporal High-Resolution SAR Imagery -- 8.1. INTRODUCTION -- 8.2. BACKSCATTERING MODEL OF BRIDGES OVER WATER -- 8.3. THE STUDY AREA AND IMAGE DATA -- 8.4. METHODOLOGY FOR DAMAGE ASSESSMENT OF BRIDGES -- 8.5. RESULTS AND DISCUSSIONS -- 8.6. CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES -- Part III Remote Sensing of Droughts and Associated Hazards -- Chapter 9 Drought Monitoring Based on Remote Sensing -- 9.1. INTRODUCTION -- 9.2. PROGRESS IN RS-BASED DROUGHT MONITORING -- 9.3. CASE STUDY -- 9.4. CONCLUSIONS AND OUTLOOK -- REFERENCES -- Chapter 10 Remote Sensing of Vegetation Responses to Drought Disturbances Using Spaceborne Optical and Near-Infrared Sensors -- 10.1. INTRODUCTION -- 10.2. DROUGHTS AND THEIR ECOPHYSIOLOGICAL IMPACTS ON ECOSYSTEMS -- 10.3. REMOTE SENSING OF VEGETATION RESPONSES TO DROUGHTS -- 10.4. CASE STUDY IN YUNNAN PROVINCE, CHINA -- 10.5. SUMMARY AND CONCLUSIONS -- REFERENCES -- Chapter 11 Recent Advances in Physical Water Scarcity Assessment Using GRACE Satellite Data -- 11.1. INTRODUCTION -- 11.2. MATERIAL AND METHODS -- 11.3. RESULTS AND DISCUSSION -- 11.4. SUMMARY AND CONCLUSION -- ACKNOWLEDGMENTS -- REFERENCES. , Chapter 12 Study of Water Cycle Variation in the Yellow River Basin Based on Satellite Remote Sensing and Numerical Modeling -- 12.1. INTRODUCTION -- 12.2. STUDY AREA -- 12.3. METHODS -- 12.4. RESULTS -- 12.5. SUMMARY -- ACKNOWLEDGMENTs -- REFERENCES -- Chapter 13 Assessing the Impact of Climate Change-Induced Droughts on Soil Salinity Development in Agricultural Areas Using Ground and Satellite Sensors -- 13.1. INTRODUCTION -- 13.2. GROUND AND SATELLITE SENSOR APPROACHES FOR MEASSURING/MAPPING SOIL SALINITY -- 13.3. IMPACTS AND IMPLICATIONS OF CLIMATE CHANGE ON SOIL SALINITY DEVELOPMENT: WESTSIDE SAN JOAQUIN VALLEY CASE STUDY -- ACKNOWLEDGMENTS -- REFERENCES -- Index -- EULA.
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  • 2
    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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  • 3
    Publication Date: 2024-02-28
    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"〉Extremely high land surface temperatures affect soil ecological processes, alter land‐atmosphere interactions, and may limit some forms of life. Extreme surface temperature hotspots are presently identified using satellite observations or deduced from complex Earth system models. We introduce a simple, yet physically based analytical approach that incorporates salient land characteristics and atmospheric conditions to globally identify locations of extreme surface temperatures and their upper bounds. We then provide a predictive tool for delineating the spatial extent of land hotspots at the limits to biological adaptability. The model is in good agreement with satellite observations showing that temperature hotspots are associated with high radiation and low wind speed and occur primarily in Middle East and North Africa, with maximum temperatures exceeding 85°C during the study period from 2005 to 2020. We observed an increasing trend in maximum surface temperatures at a rate of 0.17°C/decade. The model allows quantifying how upper bounds of extreme temperatures can increase in a warming climate in the future for which we do not have satellite observations and offers new insights on potential impacts of future warming on limits to plant growth and biological adaptability.〈/p〉
    Description: Plain Language Summary: While satellite imagery can identify extreme land surface temperatures, land and atmospheric conditions for the onset of maximum land surface temperature (LST) have not yet been globally explored. We developed a physically based analytical model for quantifying the value and spatial extent of maximum LST and provide insights into combinations of land and atmospheric conditions for the onset of such temperature extremes. Results show that extreme LST hotspots occur primarily in the Middle East and North Africa with highest values near 85°C. Importantly, persistence of surface temperatures exceeding 75°C limits vegetation growth and disrupts primary productivity such as in Lut desert in Iran. The study shows that with global warming, regions with prohibitive land surface temperatures will expand.〈/p〉
    Description: Key Points: 〈list list-type="bullet"〉 〈list-item〉 〈p xml:lang="en"〉Hotspots for high land surface temperatures (LSTs) were globally identified using a physically based analytical approach incorporating land and atmospheric conditions〈/p〉〈/list-item〉 〈list-item〉 〈p xml:lang="en"〉High LSTs primarily occur in Middle East and North Africa with values exceeding 85°C〈/p〉〈/list-item〉 〈list-item〉 〈p xml:lang="en"〉Maximum LSTs rising at a rate of 0.17°C/decade may limit plant growth and biological adaptability in a warming world〈/p〉〈/list-item〉 〈/list〉 〈/p〉
    Description: Hamburg University of Technology
    Description: European Union's Horizon Europe Research and Innovation Programme
    Description: https://disc.gsfc.nasa.gov/datasets/M2I1NXLFO_5.12.4/summary
    Description: https://disc.gsfc.nasa.gov/datasets/M2T1NXRAD_5.12.4/summary
    Description: https://doi.org/10.5067/MODIS/MCD12C1.006
    Description: https://doi.org/10.3133/ofr20111073
    Description: https://www.nccs.nasa.gov/services/data-collections/land-based-products/nex-gddp-cmip6
    Description: https://doi.org/10.3334/ORNLDAAC/1247
    Keywords: ddc:551.5 ; maximum land surface temperature (LST) ; land conditions ; atmospheric conditions ; LST hotspots
    Language: English
    Type: doc-type:article
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  • 4
    Publication Date: 2022-02-14
    Description: Our planet is in crisis! The latest report of the United Nations Intergovernmental Panel on Climate Change (IPCC AR6) confirms that human influence is causing widespread, rapid, and intensifying changes in our weather and climate that are affecting every region on Earth in multiple ways. With every additional ton of carbon we emit, the frequency and intensity of storms, floods, droughts, and fires become greater and the effects on the environment and on human health and civilization become more severe. As geoscientists and journal editors, most of us have been accustomed to being on the leading edge of human knowledge and understanding of climate change, where we deal in objectivity, uncertainty, and debate, but now we find ourselves at the core of this climate crisis......
    Description: Published
    Description: e2021GL096644
    Description: 4A. Oceanografia e clima
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 5
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    Springer Nature
    In:  EPIC3npj Climate and Atmospheric Science, Springer Nature, 4(1), ISSN: 2397-3722
    Publication Date: 2022-02-15
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
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  • 6
    Publication Date: 2022-09-02
    Description: Risk management has reduced vulnerability to floods and droughts globally, yet their impacts are still increasing. An improved understanding of the causes of changing impacts is therefore needed, but has been hampered by a lack of empirical data. On the basis of a global dataset of 45 pairs of events that occurred within the same area, we show that risk management generally reduces the impacts of floods and droughts but faces difficulties in reducing the impacts of unprecedented events of a magnitude not previously experienced. If the second event was much more hazardous than the first, its impact was almost always higher. This is because management was not designed to deal with such extreme events: for example, they exceeded the design levels of levees and reservoirs. In two success stories, the impact of the second, more hazardous, event was lower, as a result of improved risk management governance and high investment in integrated management. The observed difficulty of managing unprecedented events is alarming, given that more extreme hydrological events are projected owing to climate change.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , NonPeerReviewed
    Format: application/pdf
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  • 7
    Publication Date: 2022-05-26
    Description: Author Posting. © American Geophysical Union, 2016. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Biogeosciences 121 (2016): 1657–1674, doi:10.1002/2016JG003321.
    Description: The effect of surface water movement on methane emissions is not explicitly considered in most of the current methane models. In this study, a surface water routing was coupled into our previously developed large-scale methane model. The revised methane model was then used to simulate global methane emissions during 2006–2010. From our simulations, the global mean annual maximum inundation extent is 10.6 ± 1.9 km2 and the methane emission is 297 ± 11 Tg C/yr in the study period. In comparison to the currently used TOPMODEL-based approach, we found that the incorporation of surface water routing leads to 24.7% increase in the annual maximum inundation extent and 30.8% increase in the methane emissions at the global scale for the study period, respectively. The effect of surface water transport on methane emissions varies in different regions: (1) the largest difference occurs in flat and moist regions, such as Eastern China; (2) high-latitude regions, hot spots in methane emissions, show a small increase in both inundation extent and methane emissions with the consideration of surface water movement; and (3) in arid regions, the new model yields significantly larger maximum flooded areas and a relatively small increase in the methane emissions. Although surface water is a small component in the terrestrial water balance, it plays an important role in determining inundation extent and methane emissions, especially in flat regions. This study indicates that future quantification of methane emissions shall consider the effects of surface water transport.
    Description: The finacial support for this work is from the Open Fund of State Key Laboratory of Remote Sensing Science of China (OFSLRSS201501); 2 Supported by the Fundamental Research Funds for the Central Universities (20720160109).
    Description: 2016-12-28
    Keywords: Methane model ; Surface water transport
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 8
    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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