CONTENTS 



Introduction 1 



Processing procedures and analysis 1 



The data 1 



The isentropic format 2 



Quality control of isentropic data 2 



Harmonic analysis of isentropic data 2 



Statistical characteristics of the harmonic analyses 5 



Sampling gaps 12 



Results of the harmonic analyses 13 



Oceanographic conditions at OWS-V 13 



The oceanographic setting 13 



Variability and structure 1966-71 14 



The water structure and air-sea interaction 24 



Summary and conclusions 26 



Acknowledgments 29 



Literature cited 29 



Appendix I 31 



Appendix II 50 



Figures 



1. Sampling record of oceanographic stations at Ocean Weather Station V, 1966-72 3 



2. Positions of oceanographic stations taken by U.S. Coast Guard Cutter Chautauqua at Ocean Weather 

 Station V, 4-22 January 1966 4 



3. Original and expected salinity and depth values at (t, 26 and a^ 27 for the year 1967 6-7 



4. Original and expected salinity and depth values at a, 26 and a 27 for the year 1971 8-9 



5. Standard errors of estimate for harmonic fit of the 1971 temperatures at cr, 25 to (t, 27 10 



6. Standard errors of estimate for harmonic fit of the 1971 salinities at o; 25 to (t, 27 10 



7. Standard errors of estimate for harmonic fit of the 1971 depths at it, 25 to o; 27 11 



8. Temperature-salinity diagrams for day 244 (1 September 1969) based on original isentropic data with 

 temperature-salinity values from the harmonic fit 12 



9. Temperature-salinity diagrams for day 182 (1 July 1971) based on original isentropic data with tempera- 

 ture-salinity values from the harmonic fit 12 



10. Dynamic topography of the sea surface relative to the 1,000 decibar surface derived from selected sta- 

 tions during the summer of 1957 14 



11. Meridional sections, lat. 21° to 42°N, long. 168°E, of salinity and depth versus (r, based on 67 STD sta- 

 tions occupied 3-11 April 1971 and dynamic topography of sea surface relative to the 1,000 decibar sur- 

 face along same section 15 



12. Sections of salinity versus thermosteric anomaly and thermosteric finomaly versus depth along right- 

 hand edge of Kuroshio 16 



13. Monthly mean surface temperature-salinity relationships at Ocean Weather Station V, 1966-71 17 



14. Vertical profiles of expected values of salinity and depth from harmonic series at the first day of each 

 month at Ocean Weather Station V, 1966-71 18-23 



15. Absolute magnitude of the harmonic function for the 6-yr series of the depth of CT, 26.0 24 



16. Heat content of the water column from the surface to a, 26.0 at Ocean Weather Station V at 30-day inter- 

 vals, heat content based on change in depth per month at the a, 26.0 level, and the depth of the o; 26.0 

 level computed at midmonth from the harmonic series 25 



17. Heat content change per month based on the change in mean temperature per month in layer from sea 

 surface to a, 26.0 and heat content change per month contributed by net heat exchange across sea sur- 

 face 27 



18. Change per month of the mean temperature from the sea surface to a, 26.0 at Ocean Weather Station V 

 computed from the harmonic series 28 



Tables 



1. Manner of obtaining first and last values in each of the annual harmonic analyses, 1966-71 4 



2. Standard errors of estimate for Fourier series summations of temperature, salinity, and depth on ir, 

 25.0-27.4 at Ocean Weather Station V, 1966-71 5 



