WATER MASSES AND SOUND CHANNELS IN THE SUBARCTIC NORTHEAST PACIFIC

Authors
  1. Powell, J.W.
  2. Browning, D.G.
  3. Chow, R.K.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN)
Abstract
An investigation was conducted to obtain a better understanding of secondary sound channels (SSCs) in the Subarctic Northeast Pacific Ocean through an analysis of the oceanographic conditions in 1958 and 1959. The areas of investigation were the formation, distribution and predictability of SSCs and their relationship to the Deep Sound Channel (DSC) and the effects of different water masses. T-S diagrams were used extensively to characterize the water masses. It was found that there are two distinct masses at intermediate levels in the water column (Subarctic and California Undercurrent water) which have a significant effect on the variability within the region. The primary causes of SSC formation were shown to be the heating/cooling cycle in conjunction with the area's particular salinity structure, and to a lesser extent with water-mass interleaving. TRUNCATED
Report Number
TM-83-12 —
Date of publication
15 Sep 1983
Number of Pages
23
DSTKIM No
84-02030
CANDIS No
121420
Format(s):
Originator's fiche received by DSIS;Hardcopy

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