Short-term diurnal heating and cooling data from the Tongue of the Ocean, Bahamas, are prescntcd and discussed. The method of acquiring the time series data and the method of presentation arc rcvicwcd. A 7&y diurnal heating study is discussed in relation to the vertical diffusion of heat and its relation to meteorological parameters. Results of a 24-hr diurnal heating cxpcrimcnt arc prescntcd, and thermal eddy diffusion coefficients arc dcrivcd and compared with those obtainccl by other methocls. An approximatc heat budget calculation is performed whcrcby cssentinlly all of the energy input and output arc accounted for, utilizing the diurnal time scrics tcmpcraturc data.
A square kilometer array of self‐recording current meters was placed in Rhode Island Sound for 13 days in the summer of 1967 to monitor quasi‐continuously small‐scale current motions above and below the sharp seasonal pycnocline. The surface flow appeared strongly isolated from the lower layer by the pycnocline. Strong influence of the semidiurnal tide was observed in both layers; however, a dominant mean flow to the WSW occurred in the upper layer, whereas the lower layer showed more random and rotary character. Instantaneous currents within the array show occurrences of highly meandering and unsteady motions a few hundred meters in dimension. The kinetic energy of mean motion and the turbulent (or eddy) kinetic energy of the upper layer were about 4 to 5 times that of the bottom layer.
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