Rudnick Daniel L, Boyd Timothy J, Brainard Russell E, Carter Glenn S, Egbert Gary D, Gregg Michael C, Holloway Peter E, Klymak Jody M, Kunze Eric, Lee Craig M, Levine Murray D, Luther Douglas S, Martin Joseph P, Merrifield Mark A, Moum James N, Nash Jonathan D, Pinkel Robert, Rainville Luc, Sanford Thomas B
Scripps Institution of Oceanography, La Jolla, CA 92093-0213, USA.
Science. 2003 Jul 18;301(5631):355-7. doi: 10.1126/science.1085837.
The cascade from tides to turbulence has been hypothesized to serve as a major energy pathway for ocean mixing. We investigated this cascade along the Hawaiian Ridge using observations and numerical models. A divergence of internal tidal energy flux observed at the ridge agrees with the predictions of internal tide models. Large internal tidal waves with peak-to-peak amplitudes of up to 300 meters occur on the ridge. Internal-wave energy is enhanced, and turbulent dissipation in the region near the ridge is 10 times larger than open-ocean values. Given these major elements in the tides-to-turbulence cascade, an energy budget approaches closure.
从潮汐到湍流的级联过程被假定为海洋混合的主要能量途径。我们利用观测和数值模型沿着夏威夷海岭对这一级联过程进行了研究。在海岭处观测到的内潮能量通量的散度与内潮模型的预测结果相符。海岭上出现了峰 - 峰值幅度高达300米的大型内潮波。内波能量增强，海岭附近区域的湍能耗散比开阔海洋的值大10倍。考虑到潮汐到湍流级联过程中的这些主要因素，能量收支接近平衡。
