CONTENTS 



INTRODUCTION. .. page 7 



REGRESSION AND AUTOCORRELATION ANALYSES. ..12 



MISSING DATA. ..i 5 



MODEL FOR MISSING DATA. ..18 



MONTE CARLO APPROACH. ..29 



NONRANDOM MISSING DATA. . .26 



THE AUTOCORRELATION COEFFICIENT. ..29 



COMMENTS AND CONCLUSIONS. . .31 



RECOMMENDATIONS. . . 32 



TABLES 



1 Sea-surface temperature time series. . . page 11 



2 Correlation coefficients between sample /3's, 50 percent of 



data missing. . . 24 



3 Number of longer sequences deleted. . . 2 7 



