4, CONCLUSION 
It is important to note that (1) the data presentation given in 
this report is biased towards a description of phenomena associated with 
periods greater than about 6 hours, (2) during the summer months the 
circulation in Massachusetts Bay contains both external and internal 
tidal motions (Halpern, 1971b), and (3) 7-minute period fluctuations 
having 50-second averaged speeds of about 50 cm/sec have been measured 
in Massachusetts Bay. 
An analysis of this current meter data will be discussed in a 
later paper. 
5. ACKNOWLEDGEMENTS 
I thank Norman Brenner (Massachusetts Institute of Technology) 
for the subroutine to compute the fast Fourier transform and Linda Olund 
(University of Washington) for preparing the CURRENT PLOT computer 
program. Assistance by Pat Laird (Pacific Oceanographic Laboratory) and 
Kurt Schneblee (National Ocean Survey) is gratefully acknowledged. 
The current meter measurements were one segment of an experimental 
program conducted in the Department of Meteorology, Massachusetts 
Institute of Technology and supported by the Office of Naval Research 
under contract Nonr 1841 (74). This report was prepared at the Pacific 
Oceanographic Laboratory. 
