Table of contents : Acknowledgements Contents Abbreviations 1 Introduction References 2 Basics of Scalar Random Processes 2.1 Basic Statistical Characteristics 2.2 Deterministic Process 2.3 Random Process 2.4 Covariance and Correlation Functions 2.5 Spectral Density 2.6 Examples of Geophysical Time Series and Their Statistics References 3 Time and Frequency Domain Models of Scalar Time Series 3.1 Nonparametric Spectral Analysis 3.2 Parametric Models of Time Series 3.3 Parametric Spectral Analysis 3.4 Determining the Order of Autoregressive Models 3.5 Comparison of Autoregressive and Nonparametric Spectral Estimates 3.6 Advantages and Disadvantages of Autoregressive Analysis (Scalar Case) References 4 Practical Analysis of Time Series 4.1 Selecting the Sampling Interval 4.2 Linear Trend and Its Analysis 4.3 Testing for Stationarity and Ergodicity 4.4 Linear Filtering 4.5 Frequency Resolution of Autoregressive Spectral Analysis 4.6 Example of AR Analysis in Time and Frequency Domains Appendix References 5 Stochastic Models and Spectra of Climatic and Related Time Series 5.1 Properties of Climate Indices 5.2 Properties of Time Series of Spatially Averaged Surface Temperature 5.3 Quasi-Biennial Oscillation 5.4 Other Oscillations Appendix References 6 Statistical Forecasting of Geophysical Processes 6.1 General Remarks 6.2 Method of Extrapolation 6.3 Example 1. Global Annual Temperature 6.4 Example 2. Quasi-Biennial Oscillation 6.5 Example 3. ENSO Components 6.6 Example 4. Madden–Julian Oscillation Appendix References 7 Bivariate Time Series Analysis 7.1 Elements of Bivariate Time Series Analysis 7.1.1 Bivariate Autoregressive Models in Time Domain 7.1.2 Bivariate Autoregressive Models in Frequency Domain 7.1.3 Reliability of Autoregressive Estimates of Frequency-Dependent Quantities 7.2 Granger Causality and Feedback 7.3 On Properties of Software for Analysis of Multivariate Time Series References 8 Teleconnection Research and Bivariate Extrapolation 8.1 Example 1. The ENSO Teleconnection 8.2 Example 2. Teleconnections Between ENSO and AST 8.2.1 Time Domain Analysis—ENSO and Spatially Averaged Temperature 8.2.2 Frequency Domain Analysis 8.3 Example 3. Bivariate Extrapolation of Madden–Julian Oscillation Appendix References 9 Reconstruction of Time Series 9.1 Introduction 9.2 Methods of Reconstruction 9.2.1 Traditional Correlation/Regression Reconstruction (CRR) 9.2.2 Autoregressive Reconstruction Method (ARR) 9.3 Verification of the Autoregressive Reconstruction Method 9.3.1 Reconstruction Example: A Climatic Type Process 9.4 Discussion and Conclusions References 10 Frequency Domain Structure and Feedbacks in QBO Time Series References 11 Verification of General Circulation Models 11.1 Verifying the Structure of ENSO 11.1.1 Linear Trend Rates 11.1.2 Mean Values and Standard Deviations 11.1.3 Probability Density 11.1.4 Time and Frequency Domain Properties 11.2 Verification of ENSO Influence upon Global Temperature 11.3 Verifications of Properties of Surface Temperature Over CONUS 11.4 Conclusions References 12 Applications to Proxy Data 12.1 Introduction 12.2 Greenland Ice Cores 12.3 Antarctic Ice Cores 12.4 Discussion and Conclusions References 13 Application to Sunspot Numbers and Total Solar Irradiance 13.1 Introduction 13.2 Properties of Sunspot Number Time Series 13.3 Properties of Total Solar Irradiance Time Series References 14 Multivariate Time and Frequency Domain Analysis 14.1 Time Domain Analysis 14.2 Frequency Domain Analysis 14.3 Analysis of a Simulated Trivariate Time Series 14.3.1 Time Domain Analysis 14.3.2 Frequency Domain Analysis 14.4 Analysis of Climatic Time Series References 15 Summary and Recommendations References