Turbulence parameters have been estimated from microstructure velocity and temperature measurements in an anticyclonic Loop Current Eddy in the Gulf of Mexico for the very first time. Measurements were performed during a mission in October 2016, using a G2 Webb Research Slocum ocean glider instrumented with a microstructure sensors suite. Well‐defined turbulent kinetic energy dissipation rate patterns in the eddy and the surface mixed layer were clearly identified from both the velocity and temperature microstructure data. Higher dissipation rates were observed at the flanks and beneath the eddy core (up to 10⁻⁷ W/kg), while the core interior appeared to be very quiescent (~10⁻¹¹ W/kg). Double diffusive thermohaline intrusions were detected on the side of the eddy, while the region below the eddy core was more conducive for salt fingering. Heat and salt fluxes associated with these processes suggest that a life span of such an eddy is ~1.5 years.

中文翻译：

---

基于滑翔机的微观结构观察，在环流涡流中进行湍流混合

湍流参数是首次在墨西哥湾的反气旋环流涡流中通过微结构速度和温度测量来估算的。在2016年10月的一次任务中，使用配备了微结构传感器套件的G2 Webb Research Slocum海洋滑翔机进行了测量。从速度和温度微观结构数据可以清楚地识别出涡流和表面混合层中明确定义的湍动能消散速率模式。在侧翼和涡流核心下方观察到更高的耗散率（高达10 ^-7  W / kg），而核心内部显得非常静止（〜10 ^-11 W / kg）。在涡流一侧检测到双扩散热盐雾入侵，而涡流核心下方的区域更有利于食盐指法。与这些过程相关的热量和盐通量表明，这种涡流的寿命约为1.5年。