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Temperature Fluctuations at a Fixed Position in San Diego Bay.
Research and development rept. Apr 69-Nov 70,
NAVAL UNDERSEA RESEARCH AND DEVELOPMENT CENTER SAN DIEGO CALIF
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The purposes of the report were to investigate the thermal structure of San Diego Bay and to determine the mechanisms that significantly influence it. The results show the following. 1 There are oscillations in the thermal structure that are related to tidal forces with periods of 24.6, 12.3, 8.3, and 6.2 hr. 2 A two-layer system develops in the spring and remains until autumn. The surface layer responds in phase to the surface tides, and the bottom layer follows the phase of the surface tide in time from 0.5 to 1.5 hr. 3 Temperature inversions occur in the spring and autumn, at night, and only during the low-water phase of spring tides. 4 The bay has an annual temperature cycle The Maximum temperatures occur in July and August and the minimum in January and February. The annual temperature change for surface and bottom water is 17.4C. The vertical temperature gradient is maximum during the summer, about 0.5Cm. Author
APPROVED FOR PUBLIC RELEASE