Kooperativer Bibliotheksverbund

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Format: 1 online resource (250 pages)

Edition: 1st ed.

ISBN: 9789819742141

Note: Intro -- Preface -- Contents -- 1 Introduction -- 1.1 Background of the Study -- 1.2 Advances of Drought Analysis -- 1.2.1 Description of Drought -- 1.2.2 Meteorological and Agricultural Drought Indices -- 1.2.3 Probabilistic Characterization of Drought -- 1.2.4 Copula and Drought Frequency Analysis -- 1.2.5 Agricultural Drought Impact Assessment -- 1.2.6 Drought Characteristics Analysis -- 1.3 Identified Research Gaps -- 1.4 Goals of the Study -- References -- Part I Spatiotemporal Characteristics of Meteorological and Agricultural Drought -- 2 Materials and Methodology -- 2.1 Computation of Selected Drought Indices -- 2.2 Study Area -- 2.3 Data Collection -- 2.3.1 Grid Precipitation Data -- 2.3.2 Observation Data -- 2.4 Validation Criteria -- 2.5 Trend Analysis Assessment -- 2.5.1 Modified Mann-Kendall Test -- 2.5.2 Theil-Sen Method -- 2.5.3 Linear Regression -- 2.6 Correlation Analysis -- References -- 3 Spatial and Temporal Variations of SPI and SSI -- 3.1 Validation of Precipitation and Relative Soil Moisture -- 3.2 Temporal Variation of Precipitation and Relative Soil Moisture -- 3.3 Spatial Distribution of Precipitation and Relative Soil Moisture -- 3.3.1 Monthly Analysis -- 3.3.2 Seasonal and Annual Analysis -- 3.3.3 Temporal Analysis of SPI and SSI -- 3.4 Statistical Analysis of SPI and SSI -- 3.4.1 Trend Analysis -- 3.4.2 Correlation Analysis -- 3.5 Discussions and Recommendations -- 3.5.1 Discussions -- 3.5.2 Recommendations -- References -- Part II Multivariate Frequency Analysis of Drought Events Using Drought Indices and Copula Functions in China -- 4 Study Area and Data Source -- 4.1 Study Area -- 4.2 Study Sites and Data Collection -- 4.3 Drought Coverage Area -- 4.4 Structure of the Research -- References -- 5 Drought Indices and Univariate Analysis -- 5.1 Drought Index and Univariate Analysis -- 5.2 Methodology. , 5.2.1 Descriptive Statistics -- 5.2.2 Potential Evapotranspiration -- 5.2.3 Computation of Drought Indices -- 5.2.4 Drought Event Identification and Characterization -- 5.2.5 Selection of Appropriate Marginal Distributions -- 5.2.6 Evaluation Criteria -- 5.2.7 Estimation of Univariate Drought Return Period -- 5.2.8 Spatial Interpolation -- 5.3 Results and Discussions -- 5.3.1 Spatiotemporal Variations of Climatic Variables -- 5.3.2 Drought Indices and Their Frequency Distribution -- 5.3.3 Drought Characteristics -- 5.3.4 The Spatial and Temporal Extent of Drought Characteristics -- 5.3.5 Correlation of Drought Characteristics -- 5.3.6 Estimation of Effective Drought Index -- 5.3.7 Marginal Distribution Fit of Drought Variables -- 5.3.8 Univariate Return Period Analyses -- 5.3.9 Relative Performance of Drought Indices -- 5.4 Brief Summary -- References -- 6 Frequency Analysis Using 2-Variate Archimedean Copula -- 6.1 Background of Two-Variate Joint Copula -- 6.2 Methodology -- 6.2.1 Theoretical Aspects of Copula Functions -- 6.2.2 Bivariate Archimedean Copulas -- 6.2.3 Copulas Parameter Estimation -- 6.2.4 Selecting the Best Copula Family -- 6.2.5 Probabilities of Drought Events -- 6.2.6 Return Periods of Drought Events -- 6.3 Results and Discussion -- 6.3.1 Analysis of Drought Climatology -- 6.3.2 Drought Event Characterization -- 6.3.3 Analyzing Trivariate Dependence Between Drought Variables -- 6.3.4 Estimation of Bivariate Joint Distributions -- 6.3.5 Regional Characteristics of Drought Events -- 6.3.6 Spatial Characteristics of Drought Events -- 6.4 Brief Summary -- References -- 7 Frequency Analysis Using 3-Variate Archimedean Copula -- 7.1 Background of 3-Variate Copula -- 7.2 Methodology -- 7.2.1 Empirical Trivariate Distribution of Drought Variables -- 7.2.2 Trivariate Cumulative Probability Distribution of Drought Variables. , 7.2.3 Trivariate Dependence Modeling of Droughts Using Archimedean Copula -- 7.2.4 Selection of Appropriate Trivariate Copula Family -- 7.2.5 Trivariate Frequency Analysis of Droughts -- 7.3 Results and Discussions -- 7.3.1 Copula-Based Joint Dependence Modeling of Drought Variables -- 7.3.2 Comparison of Multivariate Probability of Drought Events -- 7.3.3 Comparison of Multivariate Return Periods of Drought Events -- 7.4 Brief Summary -- References -- 8 Frequency Analysis Using 4-Variate Archimedean Copula -- 8.1 Background of Four-Variate Dimensional Copula -- 8.2 Methodology -- 8.2.1 Empirical Four-Variate Distribution of Drought Variables -- 8.2.2 Joint Cumulative Probability Distribution of Drought Variables -- 8.2.3 Modeling Four-Variate Drought Variables Using Copulas -- 8.2.4 Selection of Appropriate Copula Function -- 8.2.5 Four-Variate Joint Drought Frequency Analysis -- 8.3 Results and Discussions -- 8.3.1 Drought Variable and Four-Variate Dependence -- 8.3.2 Marginal Distribution for Inter-arrival Time -- 8.3.3 Copula-Based Four-Variate Joint Distributions -- 8.3.4 Four-Variate Joint Drought Frequency Analysis -- 8.4 Brief Summary -- References -- Part III Remote Sensing-based Agricultural Drought Monitoring -- 9 Study Area and Data -- 9.1 The Study Area -- 9.2 Climate Zones of China -- 9.3 Data Acquisition -- 9.3.1 Satellite Data -- 9.3.2 Meteorological Data -- 9.4 Software Used -- References -- 10 Drought Evolutions Over Different Land Cover Types -- 10.1 Drought Evolutions from Meteorological and Remote-Sensing Data -- 10.1.1 Estimation of Standardized Precipitation Anomaly -- 10.1.2 Estimation of SPI -- 10.1.3 To Calculate the NDVI Anomaly and VCI -- 10.1.4 Correlation and Regression Analysis -- 10.1.5 The Modified Mann-Kendall Test -- 10.2 Results and Discussion -- 10.2.1 Temporal Variations of Different Land Cover Types. , 10.2.2 Relationship of Meteorological and RS-Based Drought Indices -- 10.2.3 Trends and Significance -- 10.3 Spatial Distribution -- 10.4 Brief Summary -- References -- 11 The Response of Vegetation Phenology and Productivity to Extreme Climate -- 11.1 Background -- 11.2 Data Collection -- 11.2.1 Computation of Enhanced Vegetation Index (EVI) -- 11.2.2 Standardized Anomalies -- 11.2.3 Computation of Drought Indices -- 11.2.4 Extraction of Phenological Metrics -- 11.2.5 Statistics Analysis -- 11.3 Results and Discussion -- 11.3.1 Variation Characteristics of the Climatic Variables -- 11.3.2 Impact of Climatic Variability on Vegetation Phenology and Productivity -- 11.3.3 Effects of Extreme Dry/Wet Events on Vegetation Phenology and Productivity -- 11.3.4 The Sensitivity of Climatic and Ecosystem Variations in China -- 11.4 Brief Summary -- References -- 12 Drought Indices Performance for Predicting Agricultural Drought -- 12.1 Background -- 12.2 Data -- 12.3 Methodology -- 12.3.1 Computation of Vegetation Health Index (VHI) -- 12.3.2 Computation of SPI, SSI, and MSDI -- 12.3.3 Statistical Analysis -- 12.3.4 The Modified Mann-Kendall Test -- 12.4 Results and Discussion -- 12.4.1 Temporal Variations of Precipitation, Relative Soil Moisture, and VHI -- 12.4.2 Spatial Distribution of Precipitation, Relative Soil Moisture, and VHI -- 12.4.3 Drought Identification -- 12.4.4 The Correlation Analysis Among the Drought Indices -- 12.4.5 The 2011 Drought -- 12.4.6 Trends and Significance -- 12.5 Brief Summary -- References -- 13 The Effects of Agricultural Drought on Crop Production -- 13.1 Background -- 13.2 Data -- 13.3 Methodology -- 13.3.1 Computation of Agricultural Standardized Precipitation Index (aSPI) -- 13.3.2 Computation of Vegetation Supply Water Index (VSWI) -- 13.3.3 Computation of Crop Yield Anomaly -- 13.3.4 Statistical Analysis. , 13.4 Results and Discussion -- 13.4.1 Drought Frequency -- 13.4.2 Temporal Variations and Relationship Between aSPI and VSWI -- 13.4.3 Trends Analysis of aSPI and VSWI -- 13.4.4 Relationship Between Drought Indices and Crop Yield Anomaly (YAI) -- 13.5 Brief Summary -- References -- 14 Conclusions -- 14.1 Spatiotemporal Analysis and Impacts Assessment of Agricultural Drought -- 14.2 Multivariate Frequency Analysis of Drought Events Using Drought Indices and Copula Functions -- 14.3 Agricultural Drought Monitoring Using Multi-source Remote Sensing Data.

Additional Edition: Print version: Li, Yi Spatiotemporal Dynamics of Meteorological and Agricultural Drought in China Singapore : Springer,c2024 ISBN 9789819742134

Language: English