| 1. | In passive sonar operation the thermocline is the major issue.
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| 2. | The thermocline may be present in shallower coastal waters.
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| 3. | These changes in surface temperature reflect changes in the depth of the thermocline.
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| 4. | This is more likely to happen near the sea floor or a thermocline.
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| 5. | There is a thermocline that forms around 15 feet.
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| 6. | Temperatures fall through a thermocline to temperatures between and.
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| 7. | Between these zones is a band of rapid temperature change called the thermocline.
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| 8. | A thermocline is established, and the cycle repeats.
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| 9. | However, wave action will often mix the water column and eliminate the thermocline.
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| 10. | These feeding-suitable phytoplankton assemblages were correlated with non-mixing thermocline layers.
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