extent of the short -period anomalies. The spatial extent of the 

 anomalies, as shown by figures 13 and 14, may cover 1 degree of 

 latitude and several degrees of longitude. For example, numbered 

 sample five shows that the observed temperature was lower than 

 the regression estimate over the 1 degree of latitude and over 

 approximately 4 degrees of longitude for a time period of about 1 

 month. 



For most of the numbered samples the data are located in 

 that part of the latitude strip nearest the coast, where, oceano- 

 graphically , the variation in temperature is expected to be most 

 erratic, because the number of mechanisms there that affect 

 temperature is greatest. 



Figures 15 through 17 are graphical representations of the 

 regression models for these samples. In each figure the regres- 

 sion equation is shown at the top. The narrow strip at the bottom 

 shows the geographical distribution of the observations. The 

 graphs above the strip show the variation of sea-surface tempera- 



58 



